This document investigates the seismic stability of mine overburden dump slopes in Dhanbad, India. Samples were collected from three mine sites and tested to determine their engineering properties. A finite element analysis was conducted using the OptumG2 software to calculate the factor of safety under static and pseudo-static seismic conditions. The analysis found that positive lateral acceleration increased stability while negative lateral acceleration decreased stability. Vertical acceleration had little effect on stability. Safety factors decreased with increasing acceleration but generally remained above 1, indicating stable slopes under the seismic conditions analyzed.
AN INVESTIGATION ON MINE OVERBURDEN DUMP SLOPE STABILITYIRJET Journal
This document summarizes a study that investigated the stability of mine overburden dump slopes in Dhanbad, India. Samples were collected from mine sites and tested in a lab to determine engineering properties. A numerical model was developed using finite element analysis software to simulate slope stability under varying conditions. The study found that adding geogrid reinforcement can improve slope stability and allow steeper slopes or greater heights. Specifically, stability decreased with steeper slopes and taller slopes but was optimized with 3-7 layers of geogrid reinforcement, beyond which there were diminishing returns for stability.
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This document presents research on developing demolished concrete mix using a pre-coating technique. The study aims to effectively utilize recycled concrete aggregate in rigid pavement slabs by replacing natural coarse aggregate with different percentage levels of recycled concrete aggregate that has undergone surface treatments to reduce water absorption. Concrete mixes with 0%, 25%, 30%, 40%, and 100% replacement of recycled aggregates will be tested to evaluate properties relevant for pavement quality concrete and determine the optimum usage of recycled concrete aggregates. The results of compressive strength, flexural strength, and split tensile strength tests on the different mixes will be analyzed.
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This study experimentally investigates the use of marble sludge powder and quarry rock dust to replace river sand in self-compacting concrete. Mix designs are developed to create self-compacting concrete using varying replacements of river sand with these industrial wastes. Tests are performed on fresh and hardened concrete to evaluate properties like flowability, compressive strength, and splitting tensile strength. The results show that partial replacements of up to 50% river sand with quarry rock dust and 20% marble sludge powder produce self-compacting concrete with comparable or improved strength and flowability properties compared to normal concrete. Using these industrial wastes helps reduce construction costs and environmental impacts of waste disposal.
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This document summarizes an experimental study on using demolished concrete waste as fine aggregate in new concrete. It first provides background on the large amounts of construction and demolition waste produced annually and the common practice of landfilling this waste. It then discusses using crushed demolished concrete as a substitute for river sand in concrete production. The study involves tests like sieve analysis, specific gravity, slump, and compressive strength on concrete made with crushed demolished waste aggregate compared to normal concrete. Results found the waste concrete had similar workability and compressive strength as normal concrete. The study concludes crushed demolished waste has potential to be used as fine aggregate in concrete, which could reduce waste and construction costs while providing an alternative to scarce river sand.
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This document presents an experimental study on the use of bagasse ash and quarry dust to partially replace cement and fine aggregate in concrete. Bagasse ash is a waste product from sugar refining that contains silica and can have pozzolanic properties. The study characterized bagasse ash chemically and physically, and tested concrete with 0-30% bagasse ash replacement of cement by weight. Tests on fresh and hardened concrete found that 10% bagasse ash replacement increased compressive strength compared to normal concrete. Further tests then replaced fine aggregate with quarry dust in 10% bagasse ash concrete and found this also increased compressive strength. The results indicate bagasse ash and quarry dust can potentially replace cement and fine aggregate in
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.
A Theoretical Study on Strata Behaviour and Ground Control in Coal MinesIRJET Journal
This document discusses strata behavior and ground control in underground coal mines. It begins with an introduction to strata movement during mining and importance of understanding strata mechanics. It then discusses various theories for predicting strata movement, including dome theory, soil mechanics theory, and dynamic rock pressure theory. It also discusses instrumentation used for monitoring strata behavior, including stress cells, load cells, and borehole extensometers. Finally, it discusses factors affecting overbreak and rock load, and concludes that monitoring strata and support behavior is important for understanding support system performance and ensuring miner safety.
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This document summarizes an exploratory study on partially replacing coarse aggregate with date seed in concrete. Date seed was collected and tested to determine its physical properties. Concrete mixes with different percentages of coarse aggregate replaced by date seed (0%, 5%, 10%, 15%, 20%, 25%) were created for three mix designs (M20, M25, M30). Specimens were tested for compressive strength at 3, 7, and 28 days, and it was found that 5% replacement for M20 and 10% replacement for M25 and M30 achieved satisfactory strength results. The study concluded that 10% date seed can be used to replace coarse aggregate in higher mix designs where it is available, providing a potential alternative and reducing
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This document summarizes a study that investigated the stability of mine overburden dump slopes in Dhanbad, India. Samples were collected from mine sites and tested in a lab to determine engineering properties. A numerical model was developed using finite element analysis software to simulate slope stability under varying conditions. The study found that adding geogrid reinforcement can improve slope stability and allow steeper slopes or greater heights. Specifically, stability decreased with steeper slopes and taller slopes but was optimized with 3-7 layers of geogrid reinforcement, beyond which there were diminishing returns for stability.
Development of Demolished Concrete Mix Using Pre-Coating TechniqueIRJET Journal
This document presents research on developing demolished concrete mix using a pre-coating technique. The study aims to effectively utilize recycled concrete aggregate in rigid pavement slabs by replacing natural coarse aggregate with different percentage levels of recycled concrete aggregate that has undergone surface treatments to reduce water absorption. Concrete mixes with 0%, 25%, 30%, 40%, and 100% replacement of recycled aggregates will be tested to evaluate properties relevant for pavement quality concrete and determine the optimum usage of recycled concrete aggregates. The results of compressive strength, flexural strength, and split tensile strength tests on the different mixes will be analyzed.
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This study experimentally investigates the use of marble sludge powder and quarry rock dust to replace river sand in self-compacting concrete. Mix designs are developed to create self-compacting concrete using varying replacements of river sand with these industrial wastes. Tests are performed on fresh and hardened concrete to evaluate properties like flowability, compressive strength, and splitting tensile strength. The results show that partial replacements of up to 50% river sand with quarry rock dust and 20% marble sludge powder produce self-compacting concrete with comparable or improved strength and flowability properties compared to normal concrete. Using these industrial wastes helps reduce construction costs and environmental impacts of waste disposal.
IRJET- An Innovative Review on the Study of Demolition Waste ConcreteIRJET Journal
This document summarizes an experimental study on using demolished concrete waste as fine aggregate in new concrete. It first provides background on the large amounts of construction and demolition waste produced annually and the common practice of landfilling this waste. It then discusses using crushed demolished concrete as a substitute for river sand in concrete production. The study involves tests like sieve analysis, specific gravity, slump, and compressive strength on concrete made with crushed demolished waste aggregate compared to normal concrete. Results found the waste concrete had similar workability and compressive strength as normal concrete. The study concludes crushed demolished waste has potential to be used as fine aggregate in concrete, which could reduce waste and construction costs while providing an alternative to scarce river sand.
IRJET- Experimental Study on Bagasse Ash and its Strength on M25 & M30 Grade ...IRJET Journal
This document presents an experimental study on the use of bagasse ash and quarry dust to partially replace cement and fine aggregate in concrete. Bagasse ash is a waste product from sugar refining that contains silica and can have pozzolanic properties. The study characterized bagasse ash chemically and physically, and tested concrete with 0-30% bagasse ash replacement of cement by weight. Tests on fresh and hardened concrete found that 10% bagasse ash replacement increased compressive strength compared to normal concrete. Further tests then replaced fine aggregate with quarry dust in 10% bagasse ash concrete and found this also increased compressive strength. The results indicate bagasse ash and quarry dust can potentially replace cement and fine aggregate in
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.
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This document discusses strata behavior and ground control in underground coal mines. It begins with an introduction to strata movement during mining and importance of understanding strata mechanics. It then discusses various theories for predicting strata movement, including dome theory, soil mechanics theory, and dynamic rock pressure theory. It also discusses instrumentation used for monitoring strata behavior, including stress cells, load cells, and borehole extensometers. Finally, it discusses factors affecting overbreak and rock load, and concludes that monitoring strata and support behavior is important for understanding support system performance and ensuring miner safety.
IRJET- Exploratory Study on Partial Replacement of Coarse Aggregate by Da...IRJET Journal
This document summarizes an exploratory study on partially replacing coarse aggregate with date seed in concrete. Date seed was collected and tested to determine its physical properties. Concrete mixes with different percentages of coarse aggregate replaced by date seed (0%, 5%, 10%, 15%, 20%, 25%) were created for three mix designs (M20, M25, M30). Specimens were tested for compressive strength at 3, 7, and 28 days, and it was found that 5% replacement for M20 and 10% replacement for M25 and M30 achieved satisfactory strength results. The study concluded that 10% date seed can be used to replace coarse aggregate in higher mix designs where it is available, providing a potential alternative and reducing
The document presents a study on producing paver blocks using plastic waste. It aims to address the growing problem of plastic waste in India, which generates around 3.5 million tonnes annually. The study mixes plastic waste with quarry dust, coarse aggregate, and ceramic powder in different ratios to produce paver blocks. The blocks are then tested for compressive strength and water absorption. The highest compressive strength of 12.95 N/mm2 was achieved for a mix using plastic waste, fine aggregate, quarry dust, and ceramic powder. Overall, the results indicate that plastic waste can effectively be utilized to create economical and environmentally friendly paving blocks.
IRJET- Effect of Manufactured Sand on Mechanical Properties of ConcreteIRJET Journal
This study evaluated the effect of using manufactured sand (M-sand) from three different localities as a replacement for natural river sand in concrete. M-sand, cement, aggregate, and water were used to make concrete mixtures with a design strength of M20 grade. Specimens were tested for workability, compressive strength, split tensile strength, and flexural strength after 7, 14, and 28 days of curing. Test results found that concrete made with M-sand from Karur had 10.71% higher compressive strength, 12.15% higher split tensile strength, and 8.22% higher flexural strength compared to conventional concrete using river sand after 28 days. While workability was lower
IRJET- An Experimantal Investigation of Concrete with Artificial SandIRJET Journal
This document presents the results of an experimental investigation into the properties of concrete with artificial sand. Artificial sand is manufactured as an alternative to natural sand due to declining natural resources. The study involves testing concrete mixtures with varying percentages (0-100%) of artificial sand replacement at curing periods of 7, 14, and 28 days. Tests conducted include compressive strength, split tensile strength, flexural strength, shear strength, and non-destructive tests. The results show the compressive strength, split tensile strength, and flexural strength of concrete with 60-100% artificial sand meet or exceed the minimum specifications. This suggests artificial sand can be a viable replacement for natural sand in concrete.
“Experimental Investigation of Green Concrete Paver Block by Partial Replacem...IRJET Journal
This document summarizes an experimental investigation on producing green concrete paver blocks by partially replacing cement with fly ash and fine aggregate with marble dust. Three samples were produced with 20%, 30%, and 40% replacements of cement with fly ash and fine aggregate with marble dust. The compressive strength of the samples was tested and compared to standard M30 grade concrete at 7, 14, and 28 days. The results found that compressive strength was reduced by 50% compared to standard concrete. The 20% replacement sample could be used in non-traffic areas according to code standards. Using these waste materials helps produce more sustainable concrete while reducing waste.
AN EXPERIMENTAL STUDY OF PARTIAL REPLACEMENT OF DEMOLITION WASTE IN FLY ASH B...IRJET Journal
This document presents the results of an experimental study on the partial replacement of demolition waste in fly ash bricks. Fly ash, demolition waste, stone dust, and cement were used as raw materials to manufacture bricks. Stone dust was used to replace demolition waste at levels of 22%, 25%, 30%, and 35% by weight. The bricks were tested for compressive strength and water absorption after 7, 14, and 28 days of curing. The compressive strength of the bricks increased with curing time and reached a maximum of 8.55 N/mm2 for bricks with 30% stone dust replacement. Water absorption also decreased with curing time and was lowest for bricks with 35% stone dust replacement. The study shows that demolition waste
IRJET- A Study on Mechanical Properties of Geopolymer ConcreteIRJET Journal
The document studies the mechanical properties of geopolymer concrete where Portland cement is fully replaced with fly ash and alkaline liquids. Different molarities of sodium hydroxide solution were used to prepare concrete mixes, which were then subjected to sunlight curing and tested after 7 and 28 days to determine their compressive strength, split tensile strength, and flexural strength. The results showed that the strengths increased with higher molarity of the sodium hydroxide solution and with increased curing time.
Utilization of Industrial By-Products as Sand Replacement on Properties of co...IRJET Journal
This document summarizes research on utilizing industrial by-products like pond ash as a partial replacement for sand in concrete. Pond ash is a by-product generated in large quantities by thermal power plants, and disposing of it poses challenges. The research involved casting concrete cubes with 0-50% sand replaced by pond ash. Compressive strengths were tested at 7 and 28 days. 10-20% replacements increased strength while higher replacements reduced it. Microstructural analysis using SEM imaging showed improved calcium silicate hydrate gel formation and reduced voids for 10-20% replacements, explaining the strength improvements. The research demonstrated the feasibility of using pond ash to partially replace sand in concrete production.
Utilization of Industrial By-Products as Sand Replacement on Properties of co...IRJET Journal
This document summarizes research on utilizing industrial by-products like pond ash as a partial replacement for sand in concrete. Pond ash is a by-product generated in large quantities from thermal power plants, and disposing of it poses challenges. The research involved casting concrete cubes with 0-50% sand replaced by pond ash. Compressive strength testing at 7 and 28 days showed strength increased up to 20% replacement but decreased at higher replacements. Microstructural analysis using SEM imaging found improved C-S-H gel formation and fewer voids explained the strength gain up to 20% replacement. The study concluded pond ash can partially replace sand in concrete up to 20% without compromising strength.
IRJET- Experimental Investigation on Partial Replacement of Dunite as CementIRJET Journal
This document presents an experimental investigation on partially replacing dunite as cement in concrete. Dunite is an igneous rock composed primarily of olivine. The study tested replacing cement with dunite powder at percentages of 0%, 20%, 40%, and 60%. Tests were conducted to determine the workability and compressive strength of the concrete mixtures at curing ages of 7, 14, and 28 days. The results showed that replacing up to 40% of cement with dunite powder improved the compressive strength of hardened concrete compared to normal concrete. The dunite powder provided strength enhancement and was found to be more economical than cement alone. Therefore, partially replacing cement with dunite powder has the potential to produce durable and high
IRJET- Experimental Investigation on Partial Replacement of Dunite as CementIRJET Journal
This document presents an experimental investigation on partially replacing dunite as cement in concrete. Dunite is an igneous rock composed primarily of olivine. The study tested replacing cement with dunite powder at percentages of 0%, 20%, 40%, and 60%. Tests were conducted to determine the workability and compressive strength of the concrete mixtures at curing ages of 7, 14, and 28 days. The results showed that replacing up to 40% of cement with dunite powder improved the compressive strength of hardened concrete compared to normal concrete. The dunite powder provided strength enhancement and was found to be more economical than cement alone. Therefore, partially replacing cement with dunite powder has the potential to produce durable and high
Experimental and Anlytical Behavior of Reinforced Concrete Beams with Opening...IRJET Journal
This document discusses an experimental study on the use of foundry sand as a partial replacement for fine aggregate in reinforced concrete beams. Foundry sand is a waste byproduct from metal casting industries. The study aims to utilize this waste material in concrete production. Concrete cubes and beams were cast using foundry sand replacements of 0-100% in increments of 10%. Beams were cast with a rounded rectangular opening. Testing found that a 40% replacement of foundry sand provided the maximum compressive strength. Beams were then cast using the 40% optimized mix and tested under two-point loading. Test results showed that foundry sand can be used as a partial replacement for fine aggregate in concrete, improving strength and providing an outlet for an
INVESTIGATION ON PERFORMANCE OF RECYCLED AGGREGATE BLOCKIRJET Journal
This document discusses an investigation into the performance of concrete blocks made with recycled aggregates. Specifically, it looks at partially replacing cement with iron ore ash and partially replacing fine aggregate with glass waste.
The objectives are to study the characteristics of the recycled materials, the performance of the concrete blocks, and do a cost analysis. A literature review found that using recycled glass bottles as fine aggregate can reduce compressive strength slightly but workability.
The document outlines the materials and mix proportions used, including varying the percentages of iron ore ash replacing cement and glass waste replacing fine aggregate. It presents the results of compressive strength, flexural strength, and ultrasonic pulse velocity tests on the different mixes. The mix with 10% iron ore
Study on Rheological & Mechanical Properties of SCM using Mineral Admixture a...IRJET Journal
This document presents a study on the rheological and mechanical properties of self-compacting mortar (SCM) using mineral admixtures as a partial replacement for cement. Ternary and quaternary SCM mixes were developed with different percentages of fly ash, metakaolin, and silica fume replacing cement. Fresh properties were evaluated using mini slump and mini V-funnel tests. Hardened properties of compressive and flexural strength were determined after 7, 14, and 28 days of curing. The results showed that ternary mixes with 20% fly ash and 10% metakaolin (M1.2) and 10% metakaolin and 5% silica fume, as
EXPERIMENTAL STUDY OF HYBRID PAVER BLOCKS ENGULFED WITH BINARY BLENDSIRJET Journal
This document presents an experimental study on hybrid paver blocks containing binary blends of fly ash and glass powder. Paver blocks were produced by partially replacing cement with fly ash (20-30%) and fine aggregate with glass powder (10-20%) by weight. The blocks were tested to evaluate properties like density, compressive strength, flexural strength, water absorption, and acid resistance over curing periods of 7, 14, and 28 days. Results showed that replacing 30% cement with fly ash and 20% fine aggregate with glass powder produced blocks with satisfactory durability and strength performance, meeting the mechanical property requirements for medium traffic use. This demonstrates the potential of using industrial waste materials to create more sustainable paving blocks.
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
IRJET- An Epitome of Soil Stabilization using Dolochar as a Solid Waste f...IRJET Journal
This document summarizes research on using dolochar, a solid waste produced by the sponge iron industry, to stabilize soil for pavement construction. Dolochar contains silica and other compounds that can improve soil properties through pozzolanic reactions when mixed with soil. The document reviews several studies that found mixing dolochar into expansive soils reduces swelling, increases bearing capacity, and improves other geotechnical properties. Using dolochar for soil stabilization provides environmental benefits by reducing disposal of this industrial waste, while also improving soil quality at a lower cost. The research demonstrates dolochar can effectively stabilize soils and make them suitable for uses such as road and pavement construction.
Utilization of industrial waste materials in the construction of interlocking...IRJET Journal
The document summarizes a study on utilizing industrial waste materials to produce interlocking paver blocks for medium traffic areas. Specifically, recycled aggregate is used to replace fine aggregate in concrete mixes in ratios of 10%, 20%, and 30%. Paver blocks are produced using these mixes and tested for properties such as compression strength. Results show that blocks with 30% recycled aggregate replacement exhibited higher compression strength than conventional blocks. A cost analysis also found the recycled aggregate blocks to be marginally cheaper. Therefore, the study concludes that blocks with 30% recycled aggregate can be used as an economical and environmentally-friendly alternative to conventional blocks for medium traffic applications.
IRJET- Use of Locally Available Material for Stabilizing Expansive SoilIRJET Journal
This document summarizes research into using locally available materials to stabilize expansive soil for road construction. Expansive soil has very low strength and high shrinkage, making it a poor foundation material. The study aimed to improve the strength of expansive soil from Olpad, India, measured by its CBR value, through mixing it with local materials. Tests found that mixing the soil with 25% yellow soil, 15% stone dust and 10% grit increased the CBR by 3-5% and the soil's maximum dry density, while decreasing the optimum moisture content. This provides an economical way to stabilize expansive soil for building village roads compared to other commercial stabilizers.
Experimental Investigation on Concrete with Replacement of Coarse Aggregate b...IRJET Journal
The document experimentally investigates using demolished building waste and steel fiber as replacements for coarse aggregate in concrete. Demolished concrete aggregate (DCA) ranging from 40-60% and 1% steel fiber were used to replace coarse aggregate. Tests were performed on concrete cubes, cylinders and beams to determine the compressive strength, split tensile strength, and flexural strength at 7, 14, and 28 days of curing. The results show that concrete with 40% DCA and 1% steel fiber achieved higher strengths than normal concrete. Using higher amounts of DCA resulted in lower strengths. The study aims to promote the reuse of demolished waste in concrete production.
Experimental Investigation on Concrete with Partial Replacement of Fine Aggre...IRJET Journal
This document presents the results of an experimental investigation on the strength properties of concrete with partial replacement of fine aggregate by granite powder. Granite powder, a byproduct of granite cutting, was used to replace fine aggregate at 10%, 15%, and 20% levels. Concrete mixtures were tested for compressive strength, split tensile strength, and flexural strength at 7, 14, and 28 days. The results showed that 10% replacement of fine aggregate provided optimal strength gains of 1-2% compared to conventional concrete. Higher replacement levels of 15% and 20% resulted in lower strength compared to conventional concrete. Therefore, the study recommends using 10% granite powder as a partial replacement of fine aggregate in concrete for improved strength and economical
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
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This document presents a study on the rheological and mechanical properties of self-compacting mortar (SCM) using mineral admixtures as a partial replacement for cement. Ternary and quaternary SCM mixes were developed with different percentages of fly ash, metakaolin, and silica fume replacing cement. Fresh properties were evaluated using mini slump and mini V-funnel tests. Hardened properties of compressive and flexural strength were determined after 7, 14, and 28 days of curing. The results showed that ternary mixes with 20% fly ash and 10% metakaolin (M1.2) and 10% metakaolin and 5% silica fume, as
EXPERIMENTAL STUDY OF HYBRID PAVER BLOCKS ENGULFED WITH BINARY BLENDSIRJET Journal
This document presents an experimental study on hybrid paver blocks containing binary blends of fly ash and glass powder. Paver blocks were produced by partially replacing cement with fly ash (20-30%) and fine aggregate with glass powder (10-20%) by weight. The blocks were tested to evaluate properties like density, compressive strength, flexural strength, water absorption, and acid resistance over curing periods of 7, 14, and 28 days. Results showed that replacing 30% cement with fly ash and 20% fine aggregate with glass powder produced blocks with satisfactory durability and strength performance, meeting the mechanical property requirements for medium traffic use. This demonstrates the potential of using industrial waste materials to create more sustainable paving blocks.
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
IRJET- An Epitome of Soil Stabilization using Dolochar as a Solid Waste f...IRJET Journal
This document summarizes research on using dolochar, a solid waste produced by the sponge iron industry, to stabilize soil for pavement construction. Dolochar contains silica and other compounds that can improve soil properties through pozzolanic reactions when mixed with soil. The document reviews several studies that found mixing dolochar into expansive soils reduces swelling, increases bearing capacity, and improves other geotechnical properties. Using dolochar for soil stabilization provides environmental benefits by reducing disposal of this industrial waste, while also improving soil quality at a lower cost. The research demonstrates dolochar can effectively stabilize soils and make them suitable for uses such as road and pavement construction.
Utilization of industrial waste materials in the construction of interlocking...IRJET Journal
The document summarizes a study on utilizing industrial waste materials to produce interlocking paver blocks for medium traffic areas. Specifically, recycled aggregate is used to replace fine aggregate in concrete mixes in ratios of 10%, 20%, and 30%. Paver blocks are produced using these mixes and tested for properties such as compression strength. Results show that blocks with 30% recycled aggregate replacement exhibited higher compression strength than conventional blocks. A cost analysis also found the recycled aggregate blocks to be marginally cheaper. Therefore, the study concludes that blocks with 30% recycled aggregate can be used as an economical and environmentally-friendly alternative to conventional blocks for medium traffic applications.
IRJET- Use of Locally Available Material for Stabilizing Expansive SoilIRJET Journal
This document summarizes research into using locally available materials to stabilize expansive soil for road construction. Expansive soil has very low strength and high shrinkage, making it a poor foundation material. The study aimed to improve the strength of expansive soil from Olpad, India, measured by its CBR value, through mixing it with local materials. Tests found that mixing the soil with 25% yellow soil, 15% stone dust and 10% grit increased the CBR by 3-5% and the soil's maximum dry density, while decreasing the optimum moisture content. This provides an economical way to stabilize expansive soil for building village roads compared to other commercial stabilizers.
Experimental Investigation on Concrete with Replacement of Coarse Aggregate b...IRJET Journal
The document experimentally investigates using demolished building waste and steel fiber as replacements for coarse aggregate in concrete. Demolished concrete aggregate (DCA) ranging from 40-60% and 1% steel fiber were used to replace coarse aggregate. Tests were performed on concrete cubes, cylinders and beams to determine the compressive strength, split tensile strength, and flexural strength at 7, 14, and 28 days of curing. The results show that concrete with 40% DCA and 1% steel fiber achieved higher strengths than normal concrete. Using higher amounts of DCA resulted in lower strengths. The study aims to promote the reuse of demolished waste in concrete production.
Experimental Investigation on Concrete with Partial Replacement of Fine Aggre...IRJET Journal
This document presents the results of an experimental investigation on the strength properties of concrete with partial replacement of fine aggregate by granite powder. Granite powder, a byproduct of granite cutting, was used to replace fine aggregate at 10%, 15%, and 20% levels. Concrete mixtures were tested for compressive strength, split tensile strength, and flexural strength at 7, 14, and 28 days. The results showed that 10% replacement of fine aggregate provided optimal strength gains of 1-2% compared to conventional concrete. Higher replacement levels of 15% and 20% resulted in lower strength compared to conventional concrete. Therefore, the study recommends using 10% granite powder as a partial replacement of fine aggregate in concrete for improved strength and economical
Similar to AN INVESTIGATION ON SEISMIC STABILITY OF MINE OVERBURDEN DUMP SLOPE (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
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.
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.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
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.
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