IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Study of corrosion of reinforced steel bars in recycled aggregate concrete wi...eSAT Publishing House
This document summarizes a study on the corrosion of reinforced steel bars in recycled aggregate concrete with fly ash. Tests were conducted including salt ponding, linear polarization resistance, impressed voltage, and weight loss. The results showed that recycled aggregate concrete had higher water absorption and lower strength than normal concrete. However, concrete with 10-20% fly ash replacement had corrosion rates close to or equal to normal concrete in the salt ponding and linear polarization resistance tests. The impressed voltage test also indicated recycled concrete with 10% fly ash replacement had a slightly longer time before damage than normal concrete. Therefore, the addition of 10-20% fly ash can improve durability and reduce corrosion in recycled aggregate concrete.
Study of corrosion of reinforced steel bars in recycled aggregate concrete wi...eSAT Journals
Abstract Large number of old buildings and other structures have reached the end of their service life and are being demolished, resulting in generation of demolished concrete. Some of this concrete wastes are used as backfill material and much being sent to landfills. Recycling concrete by using it as replacement to new aggregate in concrete could reduce concrete waste and conserve natural source of aggregate. Recycled aggregate reduce cost savings. Use of recycled aggregate in concrete can be useful for reducing dumping problems and scarcity of virgin aggregates. In present study, in addition to the recycled aggregate, fly ash has been used to study the durability properties of recycled aggregate concrete. Properties of Recycled Aggregate Concrete were compared with Conventional Concrete with varying fly ash content. While the corrosion protection of the reinforcing steel in no substitute for design and the placement of good quality concrete, it does provide for a viable and economical extension of structural integrity and service life in the day to day and practical environment in which concrete structures are constructed. The process of corrosion, its forms of attack and consequent deterioration of reinforcement concrete structures is well understood and documented. This paper explores the economic and practical benefits offered by the application of recycled aggregate concrete and advantages of recycled aggregate concrete with and without admixtures. Keywords: Recycled aggregate, Fly ash, Concrete, and corrosion in steel
This study investigated the engineering properties of fly ash concrete for rigid pavement construction. Concrete cubes and beams were prepared with 0%, 10%, 20%, 30%, and 40% fly ash replacement of cement by weight. The specimens were tested for compressive strength, flexural strength, and workability at various ages. Results showed that compressive and flexural strength increased up to 30% fly ash replacement, with the highest 28-day compressive strength of 45.95 MPa. Workability decreased with increasing fly ash content. The study concluded that 30% fly ash replacement provided superior performance while reducing cement costs and waste.
IRJET- Study on Strength of Timbercrete BlocksIRJET Journal
This study investigated the properties of timbercrete blocks made with partial replacements of sawdust for fine aggregate. Sawdust was replaced at rates of 10%, 20%, 30%, 40%, and 50% by weight of fine aggregate. Solid blocks measuring 400mm x 160mm x 190mm were cast and tested for compressive strength and water absorption after 28 days of curing. Results showed the compressive strength started to decrease significantly above a 10% sawdust replacement rate. Water absorption increased with higher sawdust content, reaching up to 8.2% for 50% replacement. In conclusion, a 10% sawdust replacement provided comparable strength to conventional concrete blocks while utilizing an industrial waste material.
Study of macro mechanical properties of ultra high strength concrete using qu...eSAT Publishing House
The document discusses a study on developing ultra-high strength concrete (UHSC) using locally available materials to achieve a compressive strength over 180 MPa. Various mixes were tested with different percentages of quartz powder (30-45%) and curing methods including normal water curing and hot air curing at 200°C for 1-3 days. The results showed that compressive strength increased up to 187 MPa for mixes with 40% quartz powder that were hot air cured for 1 day, compared to 116 MPa for normal water curing only. Higher quartz powder content and thermal curing improved strength through increased packing density and hydration reactions.
IRJET- Experimental Investigation on Concrete with Replacement of Fine Aggreg...IRJET Journal
The document experimentally investigates using granulated blast furnace slag (GBFS) as a replacement for fine aggregate in concrete. Various concrete mixtures were prepared with 0%, 20%, 50%, 70%, and 90% replacement of sand with GBFS. The compressive strength, split tensile strength, and flexural strength of the concrete mixtures were then tested at 7, 14, and 28 days. The results showed that GBFS can partially replace sand in concrete, with strengths comparable to the control mixture depending on the replacement level. Using GBFS provides benefits of reducing environmental impacts from sand mining and disposal of industrial waste slag.
IRJET-Review Paper On Usage Of Ferrocement Panels In Lightweight Sandwich Con...IRJET Journal
This document reviews the use of ferrocement panels as high-strength face sheets in lightweight sandwich concrete slabs. Specifically, it summarizes several journal articles that used ferrocement panels encasing aerated concrete as a lightweight core material. Specimens were cast with different ferrocement panel configurations and tested to determine their compressive strength, flexural strength, and shear behavior. Test results showed that ferrocement panels improved the flexural strength and ductility of the sandwich slabs compared to conventional slabs. The ferrocement encasement also ensured composite action between the core and face sheets.
IRJET- Experimental Investigation for Strength of Concrete by using Fly AshIRJET Journal
This document summarizes an experimental investigation into the strength of concrete when using fly ash. Fly ash from various sources was used to replace 25% of cement by weight or volume in mortar mixes. The mixes were tested at various water-to-binder ratios and cured for up to 90 days. Testing showed that early strength was lower with fly ash but most mixes recovered strength by 28 days. Finer fly ashes performed equal to or better than ordinary Portland cement after 28 days. The results indicate that fly ash can provide strength improvements to concrete while providing economic and environmental benefits over pure cement.
Study of corrosion of reinforced steel bars in recycled aggregate concrete wi...eSAT Publishing House
This document summarizes a study on the corrosion of reinforced steel bars in recycled aggregate concrete with fly ash. Tests were conducted including salt ponding, linear polarization resistance, impressed voltage, and weight loss. The results showed that recycled aggregate concrete had higher water absorption and lower strength than normal concrete. However, concrete with 10-20% fly ash replacement had corrosion rates close to or equal to normal concrete in the salt ponding and linear polarization resistance tests. The impressed voltage test also indicated recycled concrete with 10% fly ash replacement had a slightly longer time before damage than normal concrete. Therefore, the addition of 10-20% fly ash can improve durability and reduce corrosion in recycled aggregate concrete.
Study of corrosion of reinforced steel bars in recycled aggregate concrete wi...eSAT Journals
Abstract Large number of old buildings and other structures have reached the end of their service life and are being demolished, resulting in generation of demolished concrete. Some of this concrete wastes are used as backfill material and much being sent to landfills. Recycling concrete by using it as replacement to new aggregate in concrete could reduce concrete waste and conserve natural source of aggregate. Recycled aggregate reduce cost savings. Use of recycled aggregate in concrete can be useful for reducing dumping problems and scarcity of virgin aggregates. In present study, in addition to the recycled aggregate, fly ash has been used to study the durability properties of recycled aggregate concrete. Properties of Recycled Aggregate Concrete were compared with Conventional Concrete with varying fly ash content. While the corrosion protection of the reinforcing steel in no substitute for design and the placement of good quality concrete, it does provide for a viable and economical extension of structural integrity and service life in the day to day and practical environment in which concrete structures are constructed. The process of corrosion, its forms of attack and consequent deterioration of reinforcement concrete structures is well understood and documented. This paper explores the economic and practical benefits offered by the application of recycled aggregate concrete and advantages of recycled aggregate concrete with and without admixtures. Keywords: Recycled aggregate, Fly ash, Concrete, and corrosion in steel
This study investigated the engineering properties of fly ash concrete for rigid pavement construction. Concrete cubes and beams were prepared with 0%, 10%, 20%, 30%, and 40% fly ash replacement of cement by weight. The specimens were tested for compressive strength, flexural strength, and workability at various ages. Results showed that compressive and flexural strength increased up to 30% fly ash replacement, with the highest 28-day compressive strength of 45.95 MPa. Workability decreased with increasing fly ash content. The study concluded that 30% fly ash replacement provided superior performance while reducing cement costs and waste.
IRJET- Study on Strength of Timbercrete BlocksIRJET Journal
This study investigated the properties of timbercrete blocks made with partial replacements of sawdust for fine aggregate. Sawdust was replaced at rates of 10%, 20%, 30%, 40%, and 50% by weight of fine aggregate. Solid blocks measuring 400mm x 160mm x 190mm were cast and tested for compressive strength and water absorption after 28 days of curing. Results showed the compressive strength started to decrease significantly above a 10% sawdust replacement rate. Water absorption increased with higher sawdust content, reaching up to 8.2% for 50% replacement. In conclusion, a 10% sawdust replacement provided comparable strength to conventional concrete blocks while utilizing an industrial waste material.
Study of macro mechanical properties of ultra high strength concrete using qu...eSAT Publishing House
The document discusses a study on developing ultra-high strength concrete (UHSC) using locally available materials to achieve a compressive strength over 180 MPa. Various mixes were tested with different percentages of quartz powder (30-45%) and curing methods including normal water curing and hot air curing at 200°C for 1-3 days. The results showed that compressive strength increased up to 187 MPa for mixes with 40% quartz powder that were hot air cured for 1 day, compared to 116 MPa for normal water curing only. Higher quartz powder content and thermal curing improved strength through increased packing density and hydration reactions.
IRJET- Experimental Investigation on Concrete with Replacement of Fine Aggreg...IRJET Journal
The document experimentally investigates using granulated blast furnace slag (GBFS) as a replacement for fine aggregate in concrete. Various concrete mixtures were prepared with 0%, 20%, 50%, 70%, and 90% replacement of sand with GBFS. The compressive strength, split tensile strength, and flexural strength of the concrete mixtures were then tested at 7, 14, and 28 days. The results showed that GBFS can partially replace sand in concrete, with strengths comparable to the control mixture depending on the replacement level. Using GBFS provides benefits of reducing environmental impacts from sand mining and disposal of industrial waste slag.
IRJET-Review Paper On Usage Of Ferrocement Panels In Lightweight Sandwich Con...IRJET Journal
This document reviews the use of ferrocement panels as high-strength face sheets in lightweight sandwich concrete slabs. Specifically, it summarizes several journal articles that used ferrocement panels encasing aerated concrete as a lightweight core material. Specimens were cast with different ferrocement panel configurations and tested to determine their compressive strength, flexural strength, and shear behavior. Test results showed that ferrocement panels improved the flexural strength and ductility of the sandwich slabs compared to conventional slabs. The ferrocement encasement also ensured composite action between the core and face sheets.
IRJET- Experimental Investigation for Strength of Concrete by using Fly AshIRJET Journal
This document summarizes an experimental investigation into the strength of concrete when using fly ash. Fly ash from various sources was used to replace 25% of cement by weight or volume in mortar mixes. The mixes were tested at various water-to-binder ratios and cured for up to 90 days. Testing showed that early strength was lower with fly ash but most mixes recovered strength by 28 days. Finer fly ashes performed equal to or better than ordinary Portland cement after 28 days. The results indicate that fly ash can provide strength improvements to concrete while providing economic and environmental benefits over pure cement.
This study investigated the use of washed bottom ash (WBA) as a partial replacement for fine aggregate in concrete. Cubes, cylinders, and prisms were cast with WBA replacing 0-50% of fine aggregate to test mechanical properties at 14 and 28 days. Results showed that compressive and flexural strengths increased up to 10-20% replacement of WBA but decreased with higher replacements. The 28 day strengths were generally higher than 14 day strengths. The study concluded that WBA can effectively replace up to 20% of fine aggregate in normal strength concrete.
The document experimentally investigates using steel slag to replace coarse aggregates in concrete. Steel slag is a byproduct of steel production that can potentially be used in concrete production. The study replaced coarse aggregates with steel slag at rates of 50%, 60%, and 70% by weight. Concrete cubes were cast using different slag replacement rates and tested for compressive strength up to 28 days. The results showed that steel slag can be used to replace coarse aggregates at high rates while still maintaining adequate compressive strengths for structural concrete.
Experimental Study on Strength and Durability of Concrete with Bagasse Ash an...IRJET Journal
The document presents an experimental study on the strength and durability of concrete with bagasse ash and manufactured sand (m-sand). Bagasse ash, a byproduct of sugar production, was used to partially replace cement at ratios of 0%, 5%, 10%, 15%, and 20% by weight. River sand was fully replaced with m-sand. Tests were conducted to determine the compressive strength, split tensile strength, water sorptivity, and weight loss of hardened concrete. The results indicate that 10% was the optimal bagasse ash replacement ratio for cement, as strength increased up to 10% replacement but decreased at higher replacements. Concrete with bagasse ash and m-sand showed improved durability. A mathematical model was
This document summarizes research on the compression and flexural strength characteristics of triple blended high-strength recycled aggregate concrete. Several concrete mixtures were tested with varying percentages of fly ash, condensed silica fume, and recycled coarse aggregates as partial replacements for natural aggregates and cement. The test results showed that concrete mixtures with both supplementary cementitious materials (fly ash and condensed silica fume) and recycled aggregates achieved high compressive strength (>70 MPa), flexural strength, and split tensile strength compared to a control concrete. The optimum mixture was found to contain 20% fly ash and 5% condensed silica fume without recycled aggregates.
IRJET-Replacement of Cement by Granite Powder in Paver BlocksIRJET Journal
This study investigated using granite powder to replace cement in paver blocks. Granite powder is a byproduct of stone crushing that is currently underutilized. The study tested paver blocks with 25%, 50%, and 75% cement replaced by granite powder. Testing showed that replacing 25% of cement with granite powder increased the compressive strength by 7% and flexural strength by 12% compared to normal paver blocks. Water absorption was slightly higher but still under 6% for the 25% replacement. Residual compressive strength after heating to 150°C was also highest for the 25% replacement mix. It was determined that the 25% replacement of cement with granite powder provided optimal performance while also reducing costs.
IRJET- Strength and Durability Study of Recycled Aggregate Concrete Containin...IRJET Journal
This document summarizes a study on the strength and durability of recycled aggregate concrete containing silica fume as a partial replacement for cement. Tests were performed on concrete mixes with 0-50% replacement of natural coarse aggregates with recycled aggregates. The results showed that up to 30% replacement, the concrete achieved similar strength as conventional concrete. Beyond 30%, strength decreased. Initial surface absorption and sorptivity increased with higher replacement levels. However, recycled aggregate concrete performed well in ultrasonic pulse velocity tests. The optimum replacement of natural aggregates was found to be 30%.
Experimental Study of Mechanical Properties of Concrete using Recycled Aggre...IRJET Journal
This study experimentally analyzed the mechanical properties of concrete with recycled aggregates and nano silica. Natural coarse aggregates were replaced with recycled aggregates at levels from 0-50% and cement was replaced with nano silica at levels from 0-4%. Tests found that compressive, tensile, and flexural strengths generally decreased as recycled aggregate and nano silica levels increased. The optimum mix was 40% recycled aggregates with 3% nano silica, achieving strengths close to the control mix but with reduced natural resource usage. In conclusion, recycled aggregates and nano silica can be used to improve the sustainability of concrete, though strengths are slightly reduced.
Excess demand of natural resources on account of expeditious urbanization and the scrapping problem of agricultural waste have paved the way for research in usage of organic waste in the construction industry. Scores of organic waste materials have found their usage in concrete as substitute alternatives for cement, fine aggregate, coarse aggregate and reinforcing materials. This paper highlights and examines some of the organic waste material used as partial replacement of fine aggregate in concrete which is being defined and termed as organic waste concrete in present context. The paper aims at evaluating the strength characteristics of organic waste concrete by using different organic wastes and thus understanding the feasibility of using each organic waste. Distinct properties of fresh and hardened concrete, their reliability when admixed with organic wastes are examined. It has been observed that the organic waste concrete containing groundnut shell, rice husk ash, saw dust ash demonstrated more desirable workability than their other substitutes did. Organic waste concrete containing bagasse ash, sawdust ash attained their required strength by 20% of replacement as fine aggregate which were maximum among all organic waste type concrete. Accurate comparison was predicted among compressive strength, flexural strength and tensile strength of organic waste concrete. Introduction of bagasse ash as fine aggregate in concrete improved the resilience to chloride tapping. After the careful investigation, it is of substantial conclusion that additional exploration and testing is justified on all fine aggregates substituting organic waste, which would give further certainty on their exploitation in concrete.
Replacement of Natural Fine Aggregate With Air Cooled Blast Furnace Slag An I...IJERA Editor
The aim of the investigation is to replace natural fine aggregatewith Air Cooled Blast Furnace Slag in OPC concrete. At present, nearly million tons of slag is being produced in the steel plants, in India. The generation of slag would be dual problem in disposal difficulty and environmental pollution. Some strategies should be used to utilize the slag effectively. Considering physical properties of metallurgical slags and a series of possibilities for their use in the field of civil constructions, this report demonstrates the possibilities of using air cooled blast furnace slag as partial replacement of sand in concrete. A total of five concrete mixes, containing 0%, 12.5%, 25%, 37.5% and 50% partial replacement of regular sand with air cooled blast furnace slag are investigated in the laboratory. These mixes were tested to determine axial compressive strength, split tensile strength, and flexural strength for 7days, 28days, 56days and 90days.
IRJET - Effect of Mix Proportion on Compressive Strength and Permeability of ...IRJET Journal
The document investigates the effect of mix proportions on the compressive strength and permeability of pervious concrete. Compressive strength and permeability tests were conducted on samples with aggregate to cement ratios of 4:1, 6:1, 8:1 and 10:1 and water to cement ratios of 0.4 and 0.45. The results showed that as the aggregate to cement ratio increased, compressive strength decreased but permeability increased. Mixes with lower aggregate to cement ratios of 4:1 and 6:1 produced higher strength and lower permeability, making them suitable for applications requiring both properties. Mixes with higher ratios of 8:1 and 10:1 were better for applications requiring high permeability but lower strength.
IRJET- Study on Mechanical Properties of Steel Fibre Reinforced ConcreteIRJET Journal
This study investigated the mechanical properties of steel fibre reinforced concrete. Steel fibres with a diameter of 1mm, length of 50mm, and aspect ratio of 50 were added to concrete mixes in volumes of 0%, 0.15%, 0.3%, 0.45%, and 0.6%. Tests were conducted to determine the workability via slump test, compressive strength via cube testing, and splitting tensile strength via cylinder testing of the various mixes. The results were then compared to determine the effect of adding steel fibres on the mechanical properties of concrete.
Strength and geotechnical characterization of copper slag as partial replacem...IRJET Journal
This document presents the results of an experimental study investigating the use of copper slag as a partial replacement for fine aggregate in concrete. Tests were conducted with 0%, 20%, 40%, and 60% replacement of sand with copper slag. Compressive strength and split tensile strength were found to increase up to 40% replacement, with the highest strengths achieved at 40% replacement. Permeability was also found to be lower when copper slag was used. The recommended replacement was 40%, as strengths decreased slightly above this amount. In conclusion, partial replacement of fine aggregate with copper slag in amounts up to 40% can improve the strength and durability properties of concrete.
IRJET- Analysis of Properties of Mix Design Concrete using Steel ScrapIRJET Journal
The document presents the results of a study that analyzed the properties of concrete with the addition of varying percentages of steel scrap. A total of 45 concrete specimens were cast and cured, including cubes, beams, and cylinders. The specimens contained 0%, 0.5%, 1%, 1.5%, and 2% steel scrap by weight of the concrete. Tests were performed on the 28-day cured concrete to determine the compressive strength, split tensile strength, and flexural strength based on Indian standards. The test results found that concrete with 1% steel scrap achieved the highest compressive strength and strengths generally increased with steel scrap content up to 1% before declining. The study concluded that steel scrap concrete can provide higher strengths than plain concrete
IRJET- Partial Replacement of Cement with Fly Ash Cenospheres in Cement C...IRJET Journal
This document summarizes research into partially replacing cement with fly ash cenospheres in concrete. Experimental tests were conducted replacing cement at levels of 0%, 4%, 8%, 12%, 16%, and 20% by mass. Compressive, split tensile, and flexural strength tests were performed on samples cured for 7 and 28 days. The results showed that replacing 8% of cement with cenospheres improved compressive strength by 11.69%, split tensile strength by 26.2%, and flexural strength by 33.73% compared to normal concrete. Replacing more than 8% of cement reduced strengths below design limits. Thus, the optimum replacement of cement with cenospheres was determined to be 8%
IRJET- Experimental Investigation on Partial Replacement of Sand by Quarry Du...IRJET Journal
This document presents the results of an experimental investigation on the effects of partially replacing sand with quarry dust in concrete. Several concrete mixes were prepared with 0%, 10%, 20%, 30%, 40%, 50%, and 100% replacement of sand with quarry dust. The compressive strength and split tensile strength of the concrete generally decreased as the replacement level increased, though 20% replacement achieved slightly higher compressive strength than the control mix. The modulus of elasticity also decreased with higher replacement levels but remained within specifications. The study concluded that quarry dust can replace up to 20% of sand as a suitable alternative with minimal effects on strength properties.
IRJET- An Experimental Investigation on Reinforced Concrete Containing GGBFSIRJET Journal
This document presents an experimental investigation on reinforced concrete containing ground granulated blast furnace slag (GGBFS) as a cement replacement. Beams made of M40 grade concrete with 30% and 40% GGBFS replacement were tested under flexure. The study evaluated the performance of plain concrete and reinforced concrete beams with different reinforcement ratios. The concrete mixtures had water-cement ratios of 0.35 and 0.40. Beams were tested for compressive strength, flexural strength, splitting tensile strength, and durability at ages of 28 and 56 days. Test results are presented and discussed. The study aimed to assess how GGBFS affects the behavior and properties of reinforced concrete beams.
Effect of Copper Slag as a Fine Aggregate on Properties of ConcreteAM Publications
In this work, an extensive study using copper slag has been carried out to investigate strength, workability and durability. Copper slag is an industrial by-product material produced from the process of manufacturing copper. For, 2.2 tonnes of copper slag is generated at every ton of copper production in the world of copper industry, it has approximately 26.6 million tons of copper slag are generated. Copper slag as a substitute for conventional fine aggregate with partial or full replacement using M25 grade concrete The main objective is to encourage the use of these seemingly waste products as a construction material. In this paper , the effect of using copper slag as a fine aggregate on properties of cement mortars and concrete various mortars & concrete mixtures were prepared with different proportions of copper slag ranging from (0CS+100S)%, (10CS+90S)%, (20CS+80S)%,(30CS+70S)%, (40CS+60S)%, (50CS+50S)%, (60CS+40S)%, (70CS+30S)%, (80CS+20S)%, (90CS+10S)%, (100+0S)%. Form the above test result we concluded that the 50% CS+50% S gives optimum proportional of CS that can be used as a replacement substitute material for fine aggregate in concrete. The design M25 grade concrete for 50% replacement of CS shows the HPC characteristics. The design M25 grade concrete for 30% replacement of CS shows the HPC characteristics. We can fully replace (100%CS) by fine aggregate in concrete, because of above all test result more than control mix. We can use any proportion of CS replacement as pre our requirement for creating concrete, because we concluded that the all result of replacement of CS is more than control mix.
Impact resistance capacity of a green ultra high performance hybrid fibre rei...eSAT Publishing House
This document summarizes a study on the impact resistance capacity of an ultra-high performance hybrid fibre reinforced concrete (UHPHFRC). The concrete mixtures were designed using a modified particle packing model to achieve a dense matrix using a relatively low binder content of around 620 kg/m3. Steel fibres were added in varying proportions of long and short fibres. Impact testing was performed using a modified Charpy test and the results showed that long steel fibres improved the impact resistance capacity the most. Additionally, the failure mechanism under impact loading was analyzed and a model was developed that could predict the energy absorption capacity of the UHPHFRC samples.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
A novel password based mutual authentication technique for 4 g mobile communi...eSAT Publishing House
The document describes a proposed password-based mutual authentication technique for 4G mobile communications. The technique aims to authenticate both the subscriber and network using the subscriber's password. It involves four phases: subscriber enrollment where the subscriber chooses an ID and password which are stored on their SIM card; subscriber authentication which occurs during each connection attempt where the subscriber provides their ID and password for verification; network authentication where the network also verifies itself to the subscriber; and a password change phase where the subscriber can update their password without server involvement. The proposed technique is claimed to provide advantages such as minimizing computation, preventing multiple SIMs with the same ID, and not requiring storage of ID/password on the server.
This study investigated the use of washed bottom ash (WBA) as a partial replacement for fine aggregate in concrete. Cubes, cylinders, and prisms were cast with WBA replacing 0-50% of fine aggregate to test mechanical properties at 14 and 28 days. Results showed that compressive and flexural strengths increased up to 10-20% replacement of WBA but decreased with higher replacements. The 28 day strengths were generally higher than 14 day strengths. The study concluded that WBA can effectively replace up to 20% of fine aggregate in normal strength concrete.
The document experimentally investigates using steel slag to replace coarse aggregates in concrete. Steel slag is a byproduct of steel production that can potentially be used in concrete production. The study replaced coarse aggregates with steel slag at rates of 50%, 60%, and 70% by weight. Concrete cubes were cast using different slag replacement rates and tested for compressive strength up to 28 days. The results showed that steel slag can be used to replace coarse aggregates at high rates while still maintaining adequate compressive strengths for structural concrete.
Experimental Study on Strength and Durability of Concrete with Bagasse Ash an...IRJET Journal
The document presents an experimental study on the strength and durability of concrete with bagasse ash and manufactured sand (m-sand). Bagasse ash, a byproduct of sugar production, was used to partially replace cement at ratios of 0%, 5%, 10%, 15%, and 20% by weight. River sand was fully replaced with m-sand. Tests were conducted to determine the compressive strength, split tensile strength, water sorptivity, and weight loss of hardened concrete. The results indicate that 10% was the optimal bagasse ash replacement ratio for cement, as strength increased up to 10% replacement but decreased at higher replacements. Concrete with bagasse ash and m-sand showed improved durability. A mathematical model was
This document summarizes research on the compression and flexural strength characteristics of triple blended high-strength recycled aggregate concrete. Several concrete mixtures were tested with varying percentages of fly ash, condensed silica fume, and recycled coarse aggregates as partial replacements for natural aggregates and cement. The test results showed that concrete mixtures with both supplementary cementitious materials (fly ash and condensed silica fume) and recycled aggregates achieved high compressive strength (>70 MPa), flexural strength, and split tensile strength compared to a control concrete. The optimum mixture was found to contain 20% fly ash and 5% condensed silica fume without recycled aggregates.
IRJET-Replacement of Cement by Granite Powder in Paver BlocksIRJET Journal
This study investigated using granite powder to replace cement in paver blocks. Granite powder is a byproduct of stone crushing that is currently underutilized. The study tested paver blocks with 25%, 50%, and 75% cement replaced by granite powder. Testing showed that replacing 25% of cement with granite powder increased the compressive strength by 7% and flexural strength by 12% compared to normal paver blocks. Water absorption was slightly higher but still under 6% for the 25% replacement. Residual compressive strength after heating to 150°C was also highest for the 25% replacement mix. It was determined that the 25% replacement of cement with granite powder provided optimal performance while also reducing costs.
IRJET- Strength and Durability Study of Recycled Aggregate Concrete Containin...IRJET Journal
This document summarizes a study on the strength and durability of recycled aggregate concrete containing silica fume as a partial replacement for cement. Tests were performed on concrete mixes with 0-50% replacement of natural coarse aggregates with recycled aggregates. The results showed that up to 30% replacement, the concrete achieved similar strength as conventional concrete. Beyond 30%, strength decreased. Initial surface absorption and sorptivity increased with higher replacement levels. However, recycled aggregate concrete performed well in ultrasonic pulse velocity tests. The optimum replacement of natural aggregates was found to be 30%.
Experimental Study of Mechanical Properties of Concrete using Recycled Aggre...IRJET Journal
This study experimentally analyzed the mechanical properties of concrete with recycled aggregates and nano silica. Natural coarse aggregates were replaced with recycled aggregates at levels from 0-50% and cement was replaced with nano silica at levels from 0-4%. Tests found that compressive, tensile, and flexural strengths generally decreased as recycled aggregate and nano silica levels increased. The optimum mix was 40% recycled aggregates with 3% nano silica, achieving strengths close to the control mix but with reduced natural resource usage. In conclusion, recycled aggregates and nano silica can be used to improve the sustainability of concrete, though strengths are slightly reduced.
Excess demand of natural resources on account of expeditious urbanization and the scrapping problem of agricultural waste have paved the way for research in usage of organic waste in the construction industry. Scores of organic waste materials have found their usage in concrete as substitute alternatives for cement, fine aggregate, coarse aggregate and reinforcing materials. This paper highlights and examines some of the organic waste material used as partial replacement of fine aggregate in concrete which is being defined and termed as organic waste concrete in present context. The paper aims at evaluating the strength characteristics of organic waste concrete by using different organic wastes and thus understanding the feasibility of using each organic waste. Distinct properties of fresh and hardened concrete, their reliability when admixed with organic wastes are examined. It has been observed that the organic waste concrete containing groundnut shell, rice husk ash, saw dust ash demonstrated more desirable workability than their other substitutes did. Organic waste concrete containing bagasse ash, sawdust ash attained their required strength by 20% of replacement as fine aggregate which were maximum among all organic waste type concrete. Accurate comparison was predicted among compressive strength, flexural strength and tensile strength of organic waste concrete. Introduction of bagasse ash as fine aggregate in concrete improved the resilience to chloride tapping. After the careful investigation, it is of substantial conclusion that additional exploration and testing is justified on all fine aggregates substituting organic waste, which would give further certainty on their exploitation in concrete.
Replacement of Natural Fine Aggregate With Air Cooled Blast Furnace Slag An I...IJERA Editor
The aim of the investigation is to replace natural fine aggregatewith Air Cooled Blast Furnace Slag in OPC concrete. At present, nearly million tons of slag is being produced in the steel plants, in India. The generation of slag would be dual problem in disposal difficulty and environmental pollution. Some strategies should be used to utilize the slag effectively. Considering physical properties of metallurgical slags and a series of possibilities for their use in the field of civil constructions, this report demonstrates the possibilities of using air cooled blast furnace slag as partial replacement of sand in concrete. A total of five concrete mixes, containing 0%, 12.5%, 25%, 37.5% and 50% partial replacement of regular sand with air cooled blast furnace slag are investigated in the laboratory. These mixes were tested to determine axial compressive strength, split tensile strength, and flexural strength for 7days, 28days, 56days and 90days.
IRJET - Effect of Mix Proportion on Compressive Strength and Permeability of ...IRJET Journal
The document investigates the effect of mix proportions on the compressive strength and permeability of pervious concrete. Compressive strength and permeability tests were conducted on samples with aggregate to cement ratios of 4:1, 6:1, 8:1 and 10:1 and water to cement ratios of 0.4 and 0.45. The results showed that as the aggregate to cement ratio increased, compressive strength decreased but permeability increased. Mixes with lower aggregate to cement ratios of 4:1 and 6:1 produced higher strength and lower permeability, making them suitable for applications requiring both properties. Mixes with higher ratios of 8:1 and 10:1 were better for applications requiring high permeability but lower strength.
IRJET- Study on Mechanical Properties of Steel Fibre Reinforced ConcreteIRJET Journal
This study investigated the mechanical properties of steel fibre reinforced concrete. Steel fibres with a diameter of 1mm, length of 50mm, and aspect ratio of 50 were added to concrete mixes in volumes of 0%, 0.15%, 0.3%, 0.45%, and 0.6%. Tests were conducted to determine the workability via slump test, compressive strength via cube testing, and splitting tensile strength via cylinder testing of the various mixes. The results were then compared to determine the effect of adding steel fibres on the mechanical properties of concrete.
Strength and geotechnical characterization of copper slag as partial replacem...IRJET Journal
This document presents the results of an experimental study investigating the use of copper slag as a partial replacement for fine aggregate in concrete. Tests were conducted with 0%, 20%, 40%, and 60% replacement of sand with copper slag. Compressive strength and split tensile strength were found to increase up to 40% replacement, with the highest strengths achieved at 40% replacement. Permeability was also found to be lower when copper slag was used. The recommended replacement was 40%, as strengths decreased slightly above this amount. In conclusion, partial replacement of fine aggregate with copper slag in amounts up to 40% can improve the strength and durability properties of concrete.
IRJET- Analysis of Properties of Mix Design Concrete using Steel ScrapIRJET Journal
The document presents the results of a study that analyzed the properties of concrete with the addition of varying percentages of steel scrap. A total of 45 concrete specimens were cast and cured, including cubes, beams, and cylinders. The specimens contained 0%, 0.5%, 1%, 1.5%, and 2% steel scrap by weight of the concrete. Tests were performed on the 28-day cured concrete to determine the compressive strength, split tensile strength, and flexural strength based on Indian standards. The test results found that concrete with 1% steel scrap achieved the highest compressive strength and strengths generally increased with steel scrap content up to 1% before declining. The study concluded that steel scrap concrete can provide higher strengths than plain concrete
IRJET- Partial Replacement of Cement with Fly Ash Cenospheres in Cement C...IRJET Journal
This document summarizes research into partially replacing cement with fly ash cenospheres in concrete. Experimental tests were conducted replacing cement at levels of 0%, 4%, 8%, 12%, 16%, and 20% by mass. Compressive, split tensile, and flexural strength tests were performed on samples cured for 7 and 28 days. The results showed that replacing 8% of cement with cenospheres improved compressive strength by 11.69%, split tensile strength by 26.2%, and flexural strength by 33.73% compared to normal concrete. Replacing more than 8% of cement reduced strengths below design limits. Thus, the optimum replacement of cement with cenospheres was determined to be 8%
IRJET- Experimental Investigation on Partial Replacement of Sand by Quarry Du...IRJET Journal
This document presents the results of an experimental investigation on the effects of partially replacing sand with quarry dust in concrete. Several concrete mixes were prepared with 0%, 10%, 20%, 30%, 40%, 50%, and 100% replacement of sand with quarry dust. The compressive strength and split tensile strength of the concrete generally decreased as the replacement level increased, though 20% replacement achieved slightly higher compressive strength than the control mix. The modulus of elasticity also decreased with higher replacement levels but remained within specifications. The study concluded that quarry dust can replace up to 20% of sand as a suitable alternative with minimal effects on strength properties.
IRJET- An Experimental Investigation on Reinforced Concrete Containing GGBFSIRJET Journal
This document presents an experimental investigation on reinforced concrete containing ground granulated blast furnace slag (GGBFS) as a cement replacement. Beams made of M40 grade concrete with 30% and 40% GGBFS replacement were tested under flexure. The study evaluated the performance of plain concrete and reinforced concrete beams with different reinforcement ratios. The concrete mixtures had water-cement ratios of 0.35 and 0.40. Beams were tested for compressive strength, flexural strength, splitting tensile strength, and durability at ages of 28 and 56 days. Test results are presented and discussed. The study aimed to assess how GGBFS affects the behavior and properties of reinforced concrete beams.
Effect of Copper Slag as a Fine Aggregate on Properties of ConcreteAM Publications
In this work, an extensive study using copper slag has been carried out to investigate strength, workability and durability. Copper slag is an industrial by-product material produced from the process of manufacturing copper. For, 2.2 tonnes of copper slag is generated at every ton of copper production in the world of copper industry, it has approximately 26.6 million tons of copper slag are generated. Copper slag as a substitute for conventional fine aggregate with partial or full replacement using M25 grade concrete The main objective is to encourage the use of these seemingly waste products as a construction material. In this paper , the effect of using copper slag as a fine aggregate on properties of cement mortars and concrete various mortars & concrete mixtures were prepared with different proportions of copper slag ranging from (0CS+100S)%, (10CS+90S)%, (20CS+80S)%,(30CS+70S)%, (40CS+60S)%, (50CS+50S)%, (60CS+40S)%, (70CS+30S)%, (80CS+20S)%, (90CS+10S)%, (100+0S)%. Form the above test result we concluded that the 50% CS+50% S gives optimum proportional of CS that can be used as a replacement substitute material for fine aggregate in concrete. The design M25 grade concrete for 50% replacement of CS shows the HPC characteristics. The design M25 grade concrete for 30% replacement of CS shows the HPC characteristics. We can fully replace (100%CS) by fine aggregate in concrete, because of above all test result more than control mix. We can use any proportion of CS replacement as pre our requirement for creating concrete, because we concluded that the all result of replacement of CS is more than control mix.
Impact resistance capacity of a green ultra high performance hybrid fibre rei...eSAT Publishing House
This document summarizes a study on the impact resistance capacity of an ultra-high performance hybrid fibre reinforced concrete (UHPHFRC). The concrete mixtures were designed using a modified particle packing model to achieve a dense matrix using a relatively low binder content of around 620 kg/m3. Steel fibres were added in varying proportions of long and short fibres. Impact testing was performed using a modified Charpy test and the results showed that long steel fibres improved the impact resistance capacity the most. Additionally, the failure mechanism under impact loading was analyzed and a model was developed that could predict the energy absorption capacity of the UHPHFRC samples.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
A novel password based mutual authentication technique for 4 g mobile communi...eSAT Publishing House
The document describes a proposed password-based mutual authentication technique for 4G mobile communications. The technique aims to authenticate both the subscriber and network using the subscriber's password. It involves four phases: subscriber enrollment where the subscriber chooses an ID and password which are stored on their SIM card; subscriber authentication which occurs during each connection attempt where the subscriber provides their ID and password for verification; network authentication where the network also verifies itself to the subscriber; and a password change phase where the subscriber can update their password without server involvement. The proposed technique is claimed to provide advantages such as minimizing computation, preventing multiple SIMs with the same ID, and not requiring storage of ID/password on the server.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Design evaluation and optimization of steering yoke of an automobileeSAT Publishing House
This document describes research conducted to optimize the design of an automobile steering yoke through finite element analysis and experimental testing. The researchers created 3D models of the steering yoke in CATIA software and applied topology, shape, and size optimization techniques. They then conducted finite element analysis in HyperWorks to analyze von Mises stresses, displacement, and mass. Experimental testing was also performed on the steering yoke using a universal testing machine and strain gauges. The optimized design was found to have lower stresses, displacement, and mass than the original design, validating the finite element analysis model.
Growth and physical properties of pure and manganese doped strontium tartrate...eSAT Publishing House
The document summarizes the growth and characterization of pure and manganese-doped strontium tartrate trihydrate single crystals. Crystals were grown using the single diffusion gel growth technique by varying parameters like pH, concentration, and time. Crystals up to 10x5x3 mm in size were obtained. The crystals were characterized through techniques like PXRD, SXRD, FTIR, UV-Vis, PL, SHG, AAS, hardness, and TGA measurements. The crystals were found to be monoclinic, optically transparent, mechanically soft, and thermally stable up to 100°C. Manganese doping was found to increase PL yield and SHG efficiency.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Software testing effort estimation with cobb douglas function a practical app...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Analytical study and implementation of digital excitation system for diesel g...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Effect of modulus of masonry on initial lateral stiffness of infilled frames ...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document provides an overview of data mining techniques designed for imbalanced datasets. It discusses how imbalanced datasets, where one class is greatly underrepresented compared to others, pose challenges for machine learning algorithms. Several approaches have been proposed to address this issue, including sampling methods like oversampling the minority class and undersampling the majority class, as well as cost-sensitive methods that assign higher misclassification costs. The document reviews common sampling strategies used for imbalanced datasets, such as SMOTE, and cost-sensitive approaches involving cost matrices and cost curves. Overall, it examines how various sampling and cost-based methods can help improve classification of imbalanced datasets in fields such as medical diagnosis and text classification.
Efficient document compression using intra frame prediction tecthniqueeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
This document summarizes a research paper that proposes a parallel k-nearest neighbors (kNN) algorithm using OpenCL on a GPU architecture. The key points are:
1) kNN classification is computationally intensive, especially for large datasets, creating a need for parallelization.
2) The authors designed and implemented a parallel kNN algorithm using OpenCL to distribute distance computations across GPU cores.
3) Experimental results on UCI datasets showed the parallel kNN approach improved performance over a serial kNN implementation.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Accelerted testing of deteriorated concrete structures due to carbonationeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Bacteria as a biological admixture in concreteeSAT Journals
Abstract The main objective of the present study deals with the execution of the concrete by the microbiologically prompted unique growth/filler. One such thought has prompted the advancement of an extremely special concrete known as Bacterial Concrete where microscopic organisms is incited in the mortars and concrete to heal up the issues with various bacterium proposed at various bacterial concrete. Here a study was made by utilizing the microscopic organisms "Escherichia coli". Calcite arrangement by Escherichia coli is a model research facility bacterium, which can create calcite precipitates on suitable media supplemented with a Calcium source.Concrete cubes with and without addition of bacteria are studied and it is observed that there is an improvement in the compressive strength for the cubes with the addition of bacteria. Concrete cylinders with and without addition of bacteria was considered and it is observed that there is an improvement in the Split tensile strength for the cylinders with the addition of bacteria. Keywords: Escherichia Coli, Compressive Strength, Split Tensile Strength.
Experimental Investigation on Concrete with coarse Aggregate Replaced with Wa...IRJET Journal
This document summarizes an experimental investigation on concrete with coarse aggregate replaced with waste concrete aggregate. Concrete mixtures were prepared by replacing the natural coarse aggregate with 10%, 20%, 30%, and 40% waste concrete aggregate. The compressive strength and flexural strength of the concrete mixtures were then tested at various curing ages. The results showed that concrete mixtures with up to 30% replacement of natural aggregate with waste concrete aggregate exhibited similar strength properties. However, strength was reduced with 40% replacement, with the 40% replacement concrete showing a 14.36% lower compressive strength and 27.45% lower flexural strength compared to the natural aggregate concrete. Therefore, the study concluded that up to 30% replacement can be considered optimal without comprom
IRJET- VStudy on Strength and Durability Properties of Concrete using Steel S...IRJET Journal
This study investigated the strength and durability properties of concrete using steel slag as a replacement for crushed stone coarse aggregate. A total of 81 concrete cubes, cylinders, and prisms were cast with 0%, 25%, 50%, and 75% replacements of steel slag aggregate. Additional mixes replaced 100% of the coarse aggregate with steel slag both with and without silica fume. The concrete was tested for mechanical properties such as compressive strength, modulus of elasticity, and flexural strength as well as durability properties including acid attack resistance and rapid chloride permeability. Test results showed that 50% replacement of steel slag achieved similar mechanical properties as the crushed stone control mix. Durability properties were also comparable or better than the control mix. Therefore
An Investigation on Strength and Durability of Cement Concrete Partially Repl...IRJET Journal
This document investigates using granite slurry as a partial replacement for cement in concrete. Granite slurry is a waste material from rock quarrying and crushing. The study tested concrete mixtures with 5-20% cement replacement using granite slurry under 75 microns. Tests found compressive and flexural strength were maintained with up to 10% replacement after 28 days. Higher replacements showed strength decreases. The study concluded granite slurry can be used for partial cement replacement, providing both economic and environmental benefits by reducing costs and waste. Up to 5% replacement provided optimal strength properties.
TO STUDY THE EFFECT OF ACCELERATED CURING ON THE STRENGTH OF THE CONCRETE INC...IRJET Journal
This document studies the effect of accelerated curing on the strength of concrete with partial replacement of fly ash. Cubes of M30 grade concrete with 0%, 25%, 30%, and 35% replacement of cement with fly ash by weight were prepared and cured through normal and accelerated (boiling water) methods. Compressive strength was tested at various ages. Results showed that for normal curing, 30% fly ash replacement produced the highest strength, while for accelerated curing, 25% replacement worked best. Accelerated curing improved early strength but normal curing produced better 28-day strengths. In conclusion, accelerated curing is effective for concrete with fly ash, with optimal dosages depending on curing method.
“STUDY OF CONCRETE CUBE BY USING LATHE SCRAP AND TREATED WASTE WATER”IRJET Journal
This document presents a study on the use of lathe scrap and treated waste water in concrete. The objectives were to study the impact of adding 2% lathe scrap by weight of cement and replacing potable water with treated waste water in concrete. Tests conducted on M20 grade concrete cubes at 7 and 28 days showed increases in compressive, flexural, and split tensile strengths compared to normal concrete. The results indicate that lathe scrap and treated waste water can be used in concrete with potential benefits for construction industry waste reduction and water conservation.
IRJET- Analysis of FRP in Strengthened RC ColumnsIRJET Journal
The document discusses a research study that analyzed the use of glass fiber reinforced polymer (GFRP) wraps to rehabilitate reinforced concrete columns damaged by corrosion. Concrete columns with two different levels of corrosion damage were wrapped with various GFRP materials and thicknesses and tested to evaluate how the GFRP affected the strength, deformation, ductility, and failure modes. The research aims to assess the effectiveness of GFRP wrapping as a rehabilitation technique for corrosion-damaged concrete columns and develop models to predict the performance of GFRP-confined corroded columns.
Mechanical and Statistical Study of Seawater Mixed ConcreteIRJET Journal
This document discusses a study on the mechanical and statistical properties of seawater mixed concrete. It aims to examine the impact of using seawater on the bond strength between rebar and concrete, and on the corrosion resistance of rebar. Various concrete mixes with different grades and corrosion inhibitors will be tested for properties like compression strength, bond strength, and sorptivity. The study seeks to determine if corrosion inhibitors can improve the bond strength and corrosion resistance of seawater mixed concrete.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
IRJET - Performance and Analysis of Mechanical Properties of Fibre Reinfo...IRJET Journal
This document presents the results of an experimental study evaluating the use of flax fibre in concrete. Concrete cubes, cylinders, and prisms were made with flax fibre added at 0%, 0.5%, 1%, 1.5%, and 2% by weight of cement. The compressive strength, split tensile strength, and flexural strength were tested at 7 and 28 days of curing. The test results showed that flax fibre increased the strengths at 0.5-1% fibre content but decreased above 1% fibre content. SEM analysis indicated brittle failure in concrete without fibre but improved bonding between fibre and cement at lower fibre contents. In conclusion, flax fibre reinforced concrete performed best with fibre content below 1%.
IRJET- Crumb Rubber in Concrete: Static and Dynamic EvaluationIRJET Journal
The document summarizes research into using crumb rubber from waste tires as a partial replacement for fine aggregate in concrete. Concrete specimens were cast with 0.5-7% crumb rubber replacement by weight and tested for compressive strength and impact resistance. Compressive strength decreased with increased rubber content but impact resistance generally increased, absorbing more energy at initial and final cracking. This suggests crumb rubber concrete has potential to improve toughness and energy absorption capacity while utilizing a waste material.
IRJET- Experimental Investigation on Durability Properties of Recycled Aggreg...IRJET Journal
The document experimentally investigates the durability properties of recycled aggregate concrete. Concrete mixtures were prepared with 0-50% replacement of natural coarse aggregates with recycled concrete aggregates. The compressive strength, split tensile strength, density, water absorption, acid resistance, and alkali resistance of the mixtures were tested. The results show that concrete with up to 30% recycled aggregate replacement exhibited comparable or slightly lower compressive and tensile strengths compared to a 100% natural aggregate control mixture. Water absorption generally increased and density decreased with higher recycled aggregate content.
IRJET- Performance and Study of Corrosion Inhibitor by using Aloe Perfoliata GelIRJET Journal
The document studies the use of aloe perfoliata gel as a green corrosion inhibitor in concrete. Various experiments were conducted to study the effect of adding different percentages of aloe perfoliata gel on the compressive, split tensile, and flexural strengths of concrete over 7 and 28 days. The results showed that concrete containing aloe perfoliata gel had higher strengths compared to normal concrete, with strengths increasing as the percentage of gel increased. Accelerated corrosion tests also indicated that concrete with aloe perfoliata gel had a longer corrosion initiation time than normal concrete, showing it to be an effective corrosion inhibitor. The study thus demonstrates that aloe perfoliata gel can improve the properties of
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Structural Behaviour of Ultra High Performance Fibre Reinforced ConcreteIRJET Journal
The document discusses the structural behavior of ultra-high performance fiber reinforced concrete (UHPFRC), specifically analyzing the effects of adding steel fibers at volumes from 0-2% on the compressive strength and load bearing capacity of UHPFRC mixes containing silica fume and quartz powder. Test results showed that UHPFRC produced greater strength than traditional concrete. Previous studies also found that UHPFRC improves the resistance and durability of reinforced concrete when used in retrofitting or laminates.
IRJET- Study on Mechanical Propertiesof Polymer ConcreteIRJET Journal
This document summarizes a study on the mechanical properties of polymer concrete. Specifically, it examines how adding different polymers to concrete impacts properties like compressive strength, tensile strength, and workability. Concrete cubes and beams were produced using cement, aggregates, and various polymers like polyvinyl chloride, styrene butadiene rubber latex, polystyrene, and polypropylene. Tests on the samples found that adding 10% styrene butadiene rubber latex increased compressive and tensile strengths the most compared to other polymers and plain concrete. Workability was highest with 15% styrene butadiene rubber latex. The study concludes certain polymers like polyvinyl chloride and styrene butadiene rubber latex can improve
IRJET- Experimental Investigation & Strength of Concrete by using Fiber GlassIRJET Journal
1. The document investigates the effect of adding glass fiber on the compressive strength, split tensile strength, flexural strength, and workability of concrete.
2. It was found that the compressive strength, split tensile strength, and flexural strength increased with the addition of glass fiber up to 0.3% by weight of cement. However, workability decreased with fiber contents above 0.1%.
3. The document presents the results of experiments conducted to test the compressive strength, split tensile strength, and flexural strength of concrete mixtures containing different percentages of glass fiber. The strengths were found to generally increase with the addition of fiber up to 0.3%, with decreasing strengths
IRJET - An Experimental Investigation on Concrete with of Partial Replacement...IRJET Journal
1. The document presents the results of an experimental investigation on the use of hypo sludge as a partial replacement for cement in concrete.
2. Hypo sludge, a waste product from paper mills, was used to replace cement at levels of 5%, 10%, and 15% by weight.
3. Concrete mixtures were tested to determine their compressive strength, flexural strength, and other properties at curing periods of 7 and 28 days.
4. The test results showed that concrete with a 5% replacement of cement with hypo sludge achieved strengths close to that of normal concrete, indicating hypo sludge's potential as a supplementary cementitious material.
AN EXPERIMENTAL STUDY ON EFFECT OF MINERAL ADMIXTURE ON CONFINEMENT OF SHORT ...IRJET Journal
This document presents the results of an experimental study on the effect of mineral admixtures and ferro mesh confinement on short concrete columns. Three sets of circular reinforced concrete columns with different mix designs and confinement techniques were tested under axial compression loading. The key findings are:
1) Columns with reinforcement wrapped in ferro mesh showed improved load carrying capacity, stiffness and ductility compared to columns without ferro mesh confinement.
2) Columns cast with a mix of 70% ordinary Portland cement and 30% ground granulated blast furnace slag exhibited higher strength and smaller deformations compared to a plain concrete mix.
3) The use of ferro mesh confinement and mineral admixtures in the concrete mix can change the failure mode of columns
IRJET- Experimental Study on Concrete Incorporating with Granite Powder and W...IRJET Journal
This study experimentally investigated the effects of incorporating granite powder and wire scrap on the properties of concrete. Various concrete mixtures were prepared by replacing sand with 15%, 20%, and 25% granite powder and adding 1%, 1.5%, and 2% wire scrap. The compressive, tensile, and flexural strengths were tested at curing periods of 7, 14, and 28 days. The results showed that the concrete mixture with 20% granite powder and 1.5% wire scrap replacement achieved the highest strengths. The compressive strength increased by about 3MPa compared to normal concrete at 28 days. Both the tensile and flexural strengths also increased significantly with the partial replacements. Therefore, using these waste materials provided improved concrete properties
Similar to Behaviour of concrete beams reinforced with glass (20)
Hudhud cyclone caused extensive damage in Visakhapatnam, India in October 2014, especially to tree cover. This will likely impact the local environment in several ways: increased air pollution as trees absorb less; higher temperatures without tree canopy; increased erosion and landslides. It also created large amounts of waste from destroyed trees. Proper management of solid waste is needed to prevent disease spread. Suggested measures include restoring damaged plants, building fountains to reduce heat, mandating light-colored buildings, improving waste management, and educating public on health risks. Overall, changes are needed to water, land, and waste practices to rebuild the environment after the cyclone removed green cover.
Impact of flood disaster in a drought prone area – case study of alampur vill...eSAT Publishing House
1) In September-October 2009, unprecedented heavy rainfall and dam releases caused widespread flooding in Alampur village in Mahabub Nagar district, a historically drought-prone area.
2) The flood damaged or destroyed homes, buildings, infrastructure, crops, and documents. It displaced many residents and cut off the village.
3) The socioeconomic conditions and mud-based construction of homes in the village exacerbated the flood's impacts, making damage more severe and recovery more difficult.
The document summarizes the Hudhud cyclone that struck Visakhapatnam, India in October 2014. It describes the cyclone's formation, rapid intensification to winds of 175 km/h, and landfall near Visakhapatnam. The cyclone caused extensive damage estimated at over $1 billion and at least 109 deaths in India and Nepal. Infrastructure like buildings, bridges, and power lines were destroyed. Crops and fishing boats were also damaged. The document then discusses coping strategies and improvements needed to disaster management plans to better prepare for future cyclones.
Groundwater investigation using geophysical methods a case study of pydibhim...eSAT Publishing House
This document summarizes the results of a geophysical investigation using vertical electrical sounding (VES) methods at 13 locations around an industrial area in India. The VES data was interpreted to generate geo-electric sections and pseudo-sections showing subsurface resistivity variations. Three main layers were typically identified - a high resistivity topsoil, a weathered middle layer, and a basement rock. Pseudo-sections revealed relatively more weathered areas in the northwest and southwest. Resistivity sections helped identify zones of possible high groundwater potential based on low resistivity anomalies sandwiched between more resistive layers. The study concluded the electrical resistivity method was useful for understanding subsurface geology and identifying areas prospective for groundwater exploration.
Flood related disasters concerned to urban flooding in bangalore, indiaeSAT Publishing House
1. The document discusses urban flooding in Bangalore, India. It describes how factors like heavy rainfall, population growth, and improper land use have contributed to increased flooding in the city.
2. Flooding events in 2013 are analyzed in detail. A November rainfall caused runoff six times higher than the drainage capacity, inundating low-lying residential areas.
3. Impacts of urban flooding include disrupted daily life, damaged infrastructure, and decreased economic activity in affected areas. The document calls for improved flood management strategies to better mitigate urban flooding risks in Bangalore.
Enhancing post disaster recovery by optimal infrastructure capacity buildingeSAT Publishing House
This document discusses enhancing post-disaster recovery through optimal infrastructure capacity building. It presents a model to minimize the cost of meeting demand using auxiliary capacities when disaster damages infrastructure. The model uses genetic algorithms to select optimal capacity combinations. The document reviews how infrastructure provides vital services supporting recovery activities and discusses classifying infrastructure into six types. When disaster reduces infrastructure services, a gap forms between community demands and available support, hindering recovery. The proposed research aims to identify this gap and optimize capacity selection to fill it cost-effectively.
Effect of lintel and lintel band on the global performance of reinforced conc...eSAT Publishing House
This document analyzes the effect of lintels and lintel bands on the seismic performance of reinforced concrete masonry infilled frames through non-linear static pushover analysis. Four frame models are considered: a frame with a full masonry infill wall; a frame with a central opening but no lintel/band; a frame with a lintel above the opening; and a frame with a lintel band above the opening. The results show that the full infill wall model has 27% higher stiffness and 32% higher strength than the model with just an opening. Models with lintels or lintel bands have slightly higher strength and stiffness than the model with just an opening. The document concludes lintels and lintel
Wind damage to trees in the gitam university campus at visakhapatnam by cyclo...eSAT Publishing House
1) A cyclone with wind speeds of 175-200 kph caused massive damage to the green cover of Gitam University campus in Visakhapatnam, India. Thousands of trees were uprooted or damaged.
2) A study assessed different types of damage to trees from the cyclone, including defoliation, salt spray damage, damage to stems/branches, and uprooting. Certain tree species were more vulnerable than others.
3) The results of the study can help in selecting more wind-resistant tree species for future planting and reducing damage from future storms.
Wind damage to buildings, infrastrucuture and landscape elements along the be...eSAT Publishing House
1) A visual study was conducted to assess wind damage from Cyclone Hudhud along the 27km Visakha-Bheemli Beach road in Visakhapatnam, India.
2) Residential and commercial buildings suffered extensive roof damage, while glass facades on hotels and restaurants were shattered. Infrastructure like electricity poles and bus shelters were destroyed.
3) Landscape elements faced damage, including collapsed trees that damaged pavements, and debris in parks. The cyclone wiped out over half the city's green cover and caused beach erosion around protected areas.
1) The document reviews factors that influence the shear strength of reinforced concrete deep beams, including compressive strength of concrete, percentage of tension reinforcement, vertical and horizontal web reinforcement, aggregate interlock, shear span-to-depth ratio, loading distribution, side cover, and beam depth.
2) It finds that compressive strength of concrete, tension reinforcement percentage, and web reinforcement all increase shear strength, while shear strength decreases as shear span-to-depth ratio increases.
3) The distribution and amount of vertical and horizontal web reinforcement also affects shear strength, but closely spaced stirrups do not necessarily enhance capacity or performance.
Role of voluntary teams of professional engineers in dissater management – ex...eSAT Publishing House
1) A team of 17 professional engineers from various disciplines called the "Griha Seva" team volunteered after the 2001 Gujarat earthquake to provide technical assistance.
2) The team conducted site visits, assessments, testing and recommended retrofitting strategies for damaged structures in Bhuj and Ahmedabad. They were able to fully assess and retrofit 20 buildings in Ahmedabad.
3) Factors observed that exacerbated the earthquake's impacts included unplanned construction, non-engineered buildings, improper prior retrofitting, and defective materials and workmanship. The professional engineers' technical expertise was crucial for effective post-disaster management.
This document discusses risk analysis and environmental hazard management. It begins by defining risk, hazard, and toxicity. It then outlines the steps involved in hazard identification, including HAZID, HAZOP, and HAZAN. The document presents a case study of a hypothetical gas collecting station, identifying potential accidents and hazards. It discusses quantitative and qualitative approaches to risk analysis, including calculating a fire and explosion index. The document concludes by discussing hazard management strategies like preventative measures, control measures, fire protection, relief operations, and the importance of training personnel on safety.
Review study on performance of seismically tested repaired shear wallseSAT Publishing House
This document summarizes research on the performance of reinforced concrete shear walls that have been repaired after damage. It begins with an introduction to shear walls and their failure modes. The literature review then discusses the behavior of original shear walls as well as different repair techniques tested by other researchers, including conventional repair with new concrete, jacketing with steel plates or concrete, and use of fiber reinforced polymers. The document focuses on evaluating the strength retention of shear walls after being repaired with various methods.
Monitoring and assessment of air quality with reference to dust particles (pm...eSAT Publishing House
This document summarizes a study on monitoring and assessing air quality with respect to dust particles (PM10 and PM2.5) in the urban environment of Visakhapatnam, India. Sampling was conducted in residential, commercial, and industrial areas from October 2013 to August 2014. The average PM2.5 and PM10 concentrations were within limits in residential areas but moderate to high in commercial and industrial areas. Exceedance factor levels indicated moderate pollution for residential areas and moderate to high pollution for commercial and industrial areas. There is a need for management measures like improved public transport and green spaces to combat particulate air pollution in the study areas.
Low cost wireless sensor networks and smartphone applications for disaster ma...eSAT Publishing House
This document describes a low-cost wireless sensor network and smartphone application system for disaster management. The system uses an Arduino-based wireless sensor network comprising nodes with various sensors to monitor the environment. The sensor data is transmitted to a central gateway and then to the cloud for analysis. A smartphone app connected to the cloud can detect disasters from the sensor data and send real-time alerts to users to help with early evacuation. The system aims to provide low-cost localized disaster detection and warnings to improve safety.
Coastal zones – seismic vulnerability an analysis from east coast of indiaeSAT Publishing House
This document summarizes an analysis of seismic vulnerability along the east coast of India. It discusses the geotectonic setting of the region as a passive continental margin and reports some moderate seismic activity from offshore in recent decades. While seismic stability cannot be assumed given events like the 2004 tsunami, no major earthquakes have been recorded along this coast historically. The document calls for further study of active faults, neotectonics, and implementation of improved seismic building codes to mitigate vulnerability.
Can fracture mechanics predict damage due disaster of structureseSAT Publishing House
This document discusses how fracture mechanics can be used to better predict damage and failure of structures. It notes that current design codes are based on small-scale laboratory tests and do not account for size effects, which can lead to more brittle failures in larger structures. The document outlines how fracture mechanics considers factors like size effect, ductility, and minimum reinforcement that influence the strength and failure behavior of structures. It provides examples of how fracture mechanics has been applied to problems like evaluating shear strength in deep beams and investigating a failure of an oil platform structure. The document argues that fracture mechanics provides a more scientific basis for structural design compared to existing empirical code provisions.
This document discusses the assessment of seismic susceptibility of reinforced concrete (RC) buildings. It begins with an introduction to earthquakes and the importance of vulnerability assessment in mitigating earthquake risks and losses. It then describes modeling the nonlinear behavior of RC building elements and performing pushover analysis to evaluate building performance. The document outlines modeling RC frames and developing moment-curvature relationships. It also summarizes the results of pushover analyses on sample 2D and 3D RC frames with and without shear walls. The conclusions emphasize that pushover analysis effectively assesses building properties but has limitations, and that capacity spectrum method provides appropriate results for evaluating building response and retrofitting impact.
A geophysical insight of earthquake occurred on 21 st may 2014 off paradip, b...eSAT Publishing House
1) A 6.0 magnitude earthquake occurred off the coast of Paradip, Odisha in the Bay of Bengal on May 21, 2014 at a depth of around 40 km.
2) Analysis of magnetic and bathymetric data from the area revealed the presence of major lineaments in NW-SE and NE-SW directions that may be responsible for seismic activity through stress release.
3) Movements along growth faults at the margins of large Bengal channels, due to large sediment loads, could also contribute to seismic events by triggering movements along the faults.
Effect of hudhud cyclone on the development of visakhapatnam as smart and gre...eSAT Publishing House
This document discusses the effects of Cyclone Hudhud on the development of Visakhapatnam as a smart and green city through a case study and preliminary surveys. The surveys found that 31% of participants had experienced cyclones, 9% floods, and 59% landslides previously in Visakhapatnam. Awareness of disaster alarming systems increased from 14% before the 2004 tsunami to 85% during Cyclone Hudhud, while awareness of disaster management systems increased from 50% before the tsunami to 94% during Hudhud. The surveys indicate that initiatives after the tsunami improved awareness and preparedness. Developing Visakhapatnam as a smart, green city should consider governance
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Low power architecture of logic gates using adiabatic techniquesnooriasukmaningtyas
The growing significance of portable systems to limit power consumption in ultra-large-scale-integration chips of very high density, has recently led to rapid and inventive progresses in low-power design. The most effective technique is adiabatic logic circuit design in energy-efficient hardware. This paper presents two adiabatic approaches for the design of low power circuits, modified positive feedback adiabatic logic (modified PFAL) and the other is direct current diode based positive feedback adiabatic logic (DC-DB PFAL). Logic gates are the preliminary components in any digital circuit design. By improving the performance of basic gates, one can improvise the whole system performance. In this paper proposed circuit design of the low power architecture of OR/NOR, AND/NAND, and XOR/XNOR gates are presented using the said approaches and their results are analyzed for powerdissipation, delay, power-delay-product and rise time and compared with the other adiabatic techniques along with the conventional complementary metal oxide semiconductor (CMOS) designs reported in the literature. It has been found that the designs with DC-DB PFAL technique outperform with the percentage improvement of 65% for NOR gate and 7% for NAND gate and 34% for XNOR gate over the modified PFAL techniques at 10 MHz respectively.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMSIJNSA Journal
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
RAT: Retrieval Augmented Thoughts Elicit Context-Aware Reasoning in Long-Hori...
Behaviour of concrete beams reinforced with glass
1. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 09 | Sep-2013, Available @ http://www.ijret.org 202
BEHAVIOUR OF CONCRETE BEAMS REINFORCED WITH GLASS
FIBRE REINFORCED POLYMER FLATS
G. Jyothi Kumari1
, P. Jagannadha Rao2
, M. V. Seshagiri Rao3
1
Asst Professor, Dept. of Civil Engg, GITAM University, Hyderabad, India
2
Professor & Head, Dept. of Civil Engg, ACE college of Engg and Technology, Hyderabad, India
3
Professor Dept. of Civil Engg, Jawaharlal Nehru Technology University Hyderabad, India,
jyothineelapu@gmail.com
Abstract
Concrete is very strong in compression but it is extremely weak in tension. To resist the tensile stress, steel reinforcement is provided
in concrete. Reinforcement corrosion and structural deterioration in reinforced concrete structures are common, and prompted many
researchers to seek alternative materials and rehabilitation techniques. One such material that has been offered as an alternative to
mild steel reinforcement is Glass Fibre Reinforced Polymer (GFRP) bars and flats. For the repair and strengthening of structural
concrete members, strengthening with Glass Fibre Reinforced Polymer (GFRP) plates is an excellent option. The present work is to
study the behavior of Shear resistance of the silica coated GFRP stirrups in the shear test zone. A series of studies were conducted
using silica coated GFRP stirrups in shear zone. It is observed that beams with silica coated GFRP flats shear reinforcement have
shown failure at higher loads than the theoretical failure loads. Further it is observed that GFRP flats as shear reinforcement exhibit
fairly good ductility. Detailed experimental investigations, results and conclusions are given in the page that follows.
---------------------------------------------------------***---------------------------------------------------------
1. INTRODUCTION
A variety of new materials in the field of concrete technology
have been developed during the past three decades with the
ongoing demand of construction industries to meet the
functional, strength, economical and durability requirements.
Though concrete has high compressive strength and is the most
widely used construction material it suffers from the following
three disadvantages.
a) Weak in tension.
b) Highly porous.
c) Susceptible to chemical and environmental attack.
The above deficiencies of plain concrete are over-come in the
new materials (special cements and concrete composites)
developed over the past two or three decades. These special
cement concrete composites have unique characteristics, which
make them highly susceptible to any given application or
environment. FRC is one such material with wide range of
applications.
Fibre reinforced concrete is relatively a new composite material
in which concrete is reinforced with short discrete,
discontinuous and uniformly distributed fibres so as to improve
many engineering properties such as flexural strength, shear
strength, resistance to fatigue, impact, thermal shock or spalling.
Fibre is a piece of reinforcing material usually described by its
aspect ratio which is defined as the ratio of length of fibre to its
equivalent diameter.
2. MATERIALS OF GFRP CONCRETE
Cement: Ordinary Portland Cement (OPC) of 53 grade
confirming to IS: 8112 can be used.
Aggregate: The coarse aggregate chosen for GFRC is
typically angular in shape, is well graded, and smaller in
maximum size that suited for conventional concrete.
Water: Locally available potable water, which is pure and
free from harmful impurities such as oil, alkali, acid etc, is
used.
Gfrp Bars And Flats: Silica coated GFRP bars of diameter
6mm with Fiber Resin ratio 7:3 with tensile strength of 380
Mpa are used.
Mild Steel Bars: Mild steel bars of diameter 6mm and yield
strength of 250 Mpa were used for casting of control
specimens for comparative study.
Hysd Bars: HYSD bars of diameter 8 mm were used for
casting of specimens.
Polyester Resin: Polyester resin was used to prepare GFRP
laminates. It consists of 60% resin, 30% hardener and 10%
accelerator.
2. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 09 | Sep-2013, Available @ http://www.ijret.org 203
Nito Bond: Nito bond made by Fosrock was used as surface
coating on the plain GFRP rebar’s to improve the bond
between concrete and rebars.
3. EXPERIMENTAL WORK
Cement: In the present investigation ordinary Portland cement
IS type cement of 53 Grade (Ultra Tech) is used. The cement
thus produced was tested for physical properties in accordance
with IS 4031.
Fine Aggregate: Fine aggregate is natural sand obtained from
local market. The physical properties like specific gravity,
bulk density, gradation fineness modulus were determined in
accordance with IS 2386.
Coarse Aggregate: The crushed coarse aggregate of 12 mm
maximum size angular obtained from the local crushing plant,
at Hyderabad is used in the present study. The physical
properties of the coarse aggregate like specific gravity, bulk
density, gradation and fineness modulus were found in
accordance with IS 2386.
Water: This is the least expensive but most important
ingredient in concrete. The water, which is used for making
concrete, should be clean and free from harmful impurities
such as oil, alkali, and acid e.t.c., in general, the water fit for
drinking, should be used for making concrete.
Concrete Mix: A concrete mix of 1:1.5:3 with a water
cement ratio of 0.52 was used for the investigation.
In the process of mixing, the material is weighed with their
proportions exactly and then the materials are stacked on a
water tight platform. The materials are thoroughly mixed in
their dry condition before water is added. The prepared mix
was immediately used for testing the workability of fresh mix
Standard moulds made of cast Iron were used for casting
cubes and beams. The specimens were cast and cured for 28
days in potable water at ambient temperature as per standards.
After casting, the moulded specimens were stored in the
laboratory at room temperature for 24 hours. After these
periods the specimens are removed from the moulds and the
specimens were cured for 28 days in the present investigation
work.
Table 1 Material Quantities:
S No. Material Quantity (kg/m3
)
1 Cement 380
2 Fine Aggregate 624.5
3 Coarse Aggregate 1131.5
4 Water 197
Compressive Strength: In the present investigation the size
of 150 x 150 x150 mm are used. According to BIS 1881: part
116:1983, the load on the cube should be applied at a constant
rate of stress equal to 0.2 to 0.4 Mpa/sec
3.1 Experimental Program
Shear resistance of the silica coated GFRP stirrups in the shear
test zone was studied in the experimentation
The experiments were conducted on three series of beams A,
B, and C with GFRP flats of size 25X2.5mm as shear
reinforcement. The dimensions of all the beams are 75X150
X1200mm overall and the effective length being 1000mm.The
A series of beams comprise five numbers of control specimens
using three numbers of 8mmØ HYSD bars as flexural
reinforcement. To examine the capability of concrete in
resisting shear, shear reinforcement was not provided in the
shear test zone.
Under B series five numbers of beams were cast using flexural
reinforcement of three numbers of 8mmØ HYSD bars. In the
shear test zone two legged 25X2.5mm sized silica coated
GFRP flats at 87 mm spacing was arranged as shear
reinforcement.
In C series five numbers of beams were cast using flexural
reinforcement of three numbers of 8mmØ HYSD bars. In the
shear test zone two legged 25X2.5mm size silica coated GFRP
flats at 110 mm spacing was arranged as shear reinforcement.
To arrest the failure in the non test zone shear reinforcement
of two legged mild steel 6mm Ø stirrups at 50 mm centre to
centre was arranged in all the beams. In the bending zone
shear reinforcement was not provided as tests were conducted
in pure bending duly arranging the two point loading.
Testing Of Specimens: Tensile tests of GFRP rebars were
tested on the tension testing machine of 5 ton capacity. Double
shear test on 10mm dia GFRP rebar’s were conducted on
Universal Testing Machine.10mm dia GFRP rebars were
tested for impact strength on Izod Impact Testing Machine.
Concrete cubes and cylinders were tested on 3000k capacity
Digital Compression Testing Machine for their compressive
and split tensile strengths respectively. The prisms were
tested on Flexure Testing Machine for modulus of rupture.
The test beams were tested for shear under static two point
loading.
4. EXPERIMENTAL OBSERVATIONS
As mentioned in the table 2 the physical properties of the
ordinary Portland cement use in the present investigation and
they confirm to I.S Specifications. The 28 days compressive
strength is 54.7Mpa.
3. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 09 | Sep-2013, Available @ http://www.ijret.org 204
Table 2 Physical properties of cement
4.1 Properties Of Aggregate
Table 3 Physical properties of coarse aggregate (12mm)
Property Value
Fineness modulus 6.2
Specific gravity 2.67
Bulk density (kg/m3
) - Loose 1380
Bulk density (kg/m3)
- Dense 1530
Flakiness index 2.36%
Elongation index 12.6%
Angularity index 38.7%
Physical properties of fine aggregate:
Fineness modulus was found based on sieve analysis results
for fine aggregate. Weight of the sample taken was 1000
grams.
Fineness modulus of fine aggregate = 3.3
Specific gravity = 2.62
From the above sieve analysis we can say fine aggregate
confirms to Zone II grading of IS.
Mix Proportions: In the present investigation mix
proportioning is done using BIS method for M25 grade
concrete. The resulting mixes are modified after doing
corrections and trials are done at laboratory to achieve desired
mix proportion. Test specimens of cubes and cylinders were
casted.
Fresh Concrete: The results of various tests done for
evaluating various properties of concrete. No segregation was
observed in any of the mix and the viscosity of the mix is
enough to carry the coarse aggregate particles and the mix
remained homogenous throughout.
The slump flow, compaction factor tests were done and the
values are with in limits.
5. COMPRESSIVE STRENGTH
The compressive strength of the cubes are satisfying the
characteristic compressive strengths expected.
Table 4: Ratio of Mix proportions by weight for M25 Mix
Table 5: Compressive Strength
Table 6: Tensile strength
Fig.1: Details of Beams of Series A
Specific Gravity of Cement 3.15
Initial Setting time 42 min
Final setting time 10 Hrs
Normal Consistency 30 %
Compressive Strength 54.7 N/mm2
Mix
Cement
F.A C.A W/c
M25 1 1.64 3.97 0.52
S .No Mix Day 7 Day 28
1 M25 1 28.6
Sno Material Tensile strength(MPa)
1 GFRP bar 300
2 Mild steel bar 250
4. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 09 | Sep-2013, Available @ http://www.ijret.org 205
Fig.2: Details of Beams of Series B
Fig.3: Details of Beams of Series C
Table .7: Details of Test Beam showing average values of shear force and deflections
CS S-87 S-110
DEF(mm) SF(kN) DEF(mm) SF(kN) DEF(mm) SF(kN)
0.00 0.00 0.00 0.00 0.00 0.00
0.35 3.35 0.50 8.35 0.54 6.96
0.70 5.58 1.50 15.81 1.08 11.61
1.40 7.14 2.00 16.45 2.15 14.86
2.10 7.81 4.00 19.40 3.23 16.25
2.80 8.48 6.00 21.85 4.31 17.64
7m
m.HYSD
bars
118.5
mm
333 mm333 mm
Two legged stirrups of
Silica coated 25x2.5mm
size GFRP flats@110mm
C/C
3-8
mm
dia.
Two legged MS
Stirrups of 6mm dia.
@ 50 mm C/C
NTZ
TEST
ZONE (TZ)
2 Nos. 6 mm dia.MS
Hanger bars
1000 mm
5. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 09 | Sep-2013, Available @ http://www.ijret.org 206
3.50 9.15 8.00 23.64 5.38 19.04
4.20 9.82 10.00 24.67 6.46 20.43
4.90 10.49 12.00 25.83 7.54 21.82
9.10 12.50 14.00 26.99 14.00 26.00
16.00 27.50
Note : CS – control specimen (no stirrups in shear test zone) S-87-Beams with two legged 25x2.5mm GFRP flats @87mm c/c in shear
test zone.S-110-Beams with two legged 25x2.5mm GFRP flats @110mm c/c in shear test zone
Table 8: Test Results of beams showing ratio of Ultimate Shear to Shear at first crack
Table 9. Comparison of Test Results of with the calculated Shear strength values
Beam ID Name Shear at First Crack Ultimate Shear Ultimate Shear /Shear
at First Crack
Remarks
A1 9.35 13.09 1.40 P=1.7
And
a/d=0.33
A2 7.65 12.40 1.62
A3 7.76 11.88 1.53
A4 8.16 11.75 1.44
A5 8.86 13.38 1.51
B1 23.87 28.88 1.21
B2 19.86 26.22 1.32
B3 19.03 27.40 1.44
B4 22.00 29.70 1.12
B5 19.02 25.30 1.33
C1 22.99 27.82 1.21
C2 18.91 24.96 1.32
C3 20.88 24.22 1.16
C4 19.77 25.90 1.31
C5 20.07 27.10 1.35
Beam ID Name Theoretical
Ultimate
Shear( )
Experimental
Ultimate
Shear( )
A 2.81 1.7 27 10.19 12.50 1.23
B 2.81 1.7 27 16.94 27.50 1.62
C 2.81 1.7 27 16.94 26.00 1.57
6. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 09 | Sep-2013, Available @ http://www.ijret.org 207
6: DISCUSSION OF TEST RESULTS
6.1 Tests on GFRP Bars and Flats with and
without Silica Coating:
Tensile strength tests were conducted on plain and silica coated
GFRP bars of 10mm and 6mm , to understand the tensile
behavior and to determine the modulus of elasticity. The glass
fiber and resin proportion of 7:3 was used to manufacture the
GFRP bars. The average tensile strength of 10mm dia. GFRP
bars was found to be 380Mpa, for both plain and silica coated
bars. The tensile strength of 6mm bars was found to be 416
Mpa for silica coated and plain bars similar to that of pre-stressing
strands. The average tensile strength of 25mmX2.5mm size
GFRP flats was found to be 370Mpa, for both plain and silica
coated bars. It is observed that the silica coating did not influence
the tensile strength of the bars significantly. The failure pattern
for plain 10mm and 6mm bars was brittle and associated
with splintering of glass fibers. Similar behavior was observed in
the case of silica-coated bars of same diameter.
6.2 Shear Tests:
A total number of fifteen beams were tested in shear in this phase.
For control specimens with no shear reinforcement the first crack
has occurred at 8.36 KN and failed at an ultimate shear of 12.5
KN and the ratio of ultimate shear to shear at first crack being 1.5.
For beams with shear reinforcement using silica coated two
legged 25mm 2.5mm size GFRP flats at 110 mm c/c the first
crack has occurred at 20.52 KN and failed at an ultimate shear of
26 KN and the ratio of ultimate shear to shear at first crack being
1.27 ,where as for beams with shear reinforcement using silica
coated two legged 25mm 2.5mm size GFRP flats at 87 mm
c/c the first crack has occurred at 20.76 KN and failed at an
ultimate shear of 27.50 KN and the ratio of ultimate shear to
shear at first crack being 1.33 .It was observed that there is
marginal increase of shear values both at first crack and at failure
when the spacing is decreased from one third of shear span to
three fourth of effective depth that is from 110mm to 87 mm.
There is large increase in crack loads when GFRP flats with
different spacing was used. Also the percentage increase in
ultimate shear is 120% for 87mm spacing of flats and 108% when
110mm spacing was adopted.
6.3 Comparison of Deflections of Beams
In experimental work it is observed that compared to control
specimens where in no shear reinforcement was used in shear test
zone, at load of 20kN, the deflections are decreased by 84% in the
case of beams with two legged stirrups of silica coated GFRP
bars at 100 mm spacing in shear test zone while it is 80 %
decrease when the stirrup spacing is decreased to 87mm. At the
load of 25kN where in the control specimens failed, there is
increase of deflections by 76 % in the case of beams with two
legged stirrups of silica coated GFRP bars at 100mm spacing in
shear test zone while it is 54 % increase when the stirrup spacing
is decreased to 87mm .
In the same phase when the comparisons are made at the
ultimate failure loads, there is increase of deflections by 76 % in
the case of beams with two legged stirrups of silica coated GFRP
bars 100 mm spacing in shear test zone while it is 54 % increase
when the stirrup spacing is decreased to 87mm.
6.4. Comparison of Tensile Strains of Beams
in Test Zone
It is observed that compared to control specimens (A series)
where no shear reinforcement was used in shear test zone, at a
load of 10kN, the tensile strains are decreased by 21% in the case
of beams (B series) with two legged stirrups of silica coated
GFRP bars at 110 mm spacing in shear test zone while it is 26 %
decrease when the stirrup spacing is decreased to 87mm (C
series). At a load of 20kN there is decrease of strains by 23% in
the case of beams with two legged stirrups of silica coated GFRP
bars at 110mm spacing in shear test zone while it is 29% decrease
when the stirrup spacing is decreased to 87mm.
In the same phase when the comparisons are made at the
ultimate failure loads, there is decrease of strains by 10% and
15% in respect of beams of B and C series.
6.5. Comparison of Compressive Strains of
Beams in Test Zone
Similar comparisons of compressive strains in test zone are made
with control specimen (A series). At 10 kN load the compressive
strains are decreased by 22% and 29% in the case of B and C
series respectively. The values are 23% and 26% decrease at 20
kN load and finally at failure load the decrease of strains are 10%
and 18% respectively.
Fig.6.1.Shear Force Vs Deflection At Centre In Beams (a/d
=0.33, p=1.69)
7. IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
__________________________________________________________________________________________
Volume: 02 Issue: 09 | Sep-2013, Available @ http://www.ijret.org 208
Fig.6.2.Shear Force Vs Tensile Strain in Shear Zone in Beams
(a/d=2.81; P=1.7)
Fig.6.3.Shere Force Vs Compressive Strain In Shear Zone Beams
( a/d=2.81;p=1.7)
CONCLUSIONS
The following conclusions were arrived based on the
experimental investigations and test results:
1. The beams with silica coated GFRP bars and Flats as
shear reinforcement, have shown failure at loads higher
than the theoretical failure loads. This clearly indicates
the improved bond of silica coated GFRP bars with
concrete.
2. Beams with GFRP reinforcement, both plain and silica
coated have shown higher deflections compared to that
of controlled beams with HYSD bars thus indicating
improved ductility of GFRP-concrete composite
3. It was observed that the failure of all the beams was not
sudden, though the failure of GFRP bars and flats was
sudden and associated with splintering of fibers in
tension.
4. Also the ratio of Ultimate shear to shear at first crack
indicates that the beams with GFRP shear reinforcement
exhibit fairly good ductility
5. Further the percentage of variation between the actual
ultimate loads verses the theoretical failure loads ranges
from 36 to60.
6. The strength of the composites, flats or bars depends up
on the fibre orientation and fibre to matrix ratio; higher
the fiber content, higher the tensile strength.
7. Also the ratio Pu/Pfcr indicates that the beams with
GFRP shear reinforcement exhibit fairly good ductility.
8. Further the percentage of variation between the actual
ultimate loads verses the theoretical failure loads ranges
from 34 to 60.
REFERENCES
[1] Alexander Placas; and Paul E. Regan, 1971, “Shear
failure of reinforced concrete beams,” ACI Journal,
Title No.68-67, Oct.1971, pp.763-772. Aurelio
Muttoni; and Migul Fernandes Rliz,2008, “shear
strength of members without transverse reinforcement
as function of critical shear crack width,” ACI
Structural Journal, V.105, No.2, March – April,
2008.
[2] Anil K. Patnaik, Ramakrishna Puli, “ Preliminary
Studies on the Use of Basalt FRP for Strengthen
Reinforced concrete beams” Proceedings of ICFRC
International Conference on Fibre Composites, High-
Performance Concrete and Smart Materials, 8-10
January, 2004, Chennai, India pp 375-385.
[3] Abhijit Mukherjee and S.J. Arwikar, “Performance of
Glass Fiber-Reinforced Polymer Reinforcing Bars in
Tropical Environments- Part I : Structural Scale Tests”,
A C I Structural Journal, October 2005, pp 745-753
[4] Braun, J.; and Eskridge, M., 2004, “Concrete
Reinforced with Glass Fiber Bars: Innovative and Cost-
Effective Solutions,” Proceedings of ICFRC
International Conference on Fiber Composites, High
Performance Concretes and Smart Materials, January
8-10, 2004,pp. 337-351, Chennai, India.
[5] Biswarup Saikia, Anantha Ramaswamy, “A study on
Flexural performance of beams reinforced with GFRP
Bars”, Proceedings of ICFRC Conference,Chennai, pp
465-474 .
[6] Christos G. Papakonstantinou, Micheal F. Petrou, and
KenHarries. “ Fatigue Behaviour of RC beams
strengthendd with GFRP Sheets”.Journal of Composite
for consturuction, Nov, 2001, pp 246-253.