This document discusses a study on the use of brick dust and fly ash as replacements for fine aggregates in self-compacting concrete. It provides background on self-compacting concrete and its advantages over normal vibrated concrete. The study aims to compare the mechanical properties of self-compacting concrete and normal concrete with various ratios of fly ash and brick dust replacing fine aggregate. A literature review covers research on the effects of paste content and powder-to-water ratio on the properties of self-compacting concrete, as well as using fly ash and brick dust as additions in concrete mixes.
This document summarizes a study on replacing fine aggregates in self-compacting concrete with brick dust and fly ash. It provides background on self-compacting concrete and its advantages over normal vibrated concrete. A literature review covers previous research on the effects of paste content, powder content, water-to-cement ratio, and use of fly ash and brick dust. The experimental section describes the materials used - cement, brick dust, fly ash, water, and fine aggregates. Tests were conducted on compressive strength, splitting tensile strength, and flexural strength of self-compacting concrete with different ratios of fly ash and brick dust replacement of fine aggregates at 7, 28, and 56 days.
IRJET- Experimental Study on Self Compacting Concretre by Partial Replacement...IRJET Journal
This study experimentally investigates the use of palm oil fuel ash (POFA) as a partial replacement for cement in self-compacting concrete. POFA is a waste product from the palm oil industry in Malaysia. The study replaces cement with 0%, 10%, 20%, 30%, and 50% POFA by weight of cement, keeping a water-binder ratio of 0.40. Fresh and hardened properties are evaluated, including filling ability, passing ability, compressive strength, flexural strength, and split tensile strength. Test results show that replacing up to 30% of cement with POFA does not significantly reduce strength. This suggests POFA has potential as a supplementary cementitious material to reduce the cost of self-comp
IRJET- A Review on Strength Properties of Concrete with Partial Replacement o...IRJET Journal
This document summarizes research on the strength properties of concrete with partial replacement of cement by ground granulated blast furnace slag (GGBS). It first provides background on GGBS, noting that it is a byproduct of iron manufacturing with similar chemical composition to portland cement. The document then reviews literature on the topic, finding that compressive strength of GGBS concrete increased at 40% replacement but decreased with further additions. Experimental results from the study found optimal GGBS replacement is 40% for maximum strength. In conclusion, GGBS can improve concrete strength when used to partially replace cement.
An Experimental Investigation on Self Compacting Concrete with Artificial Fin...IRJET Journal
This document summarizes an experimental investigation on the properties of self-compacting concrete that uses artificial fine aggregate as a replacement for natural fine aggregate. The study tested different mixtures with cement replaced by fly ash, silica fume, and metakaolin. The concrete mixtures were tested for workability, mechanical properties like compressive strength, and durability properties like water absorption and acid resistance. The results showed that the artificial fine aggregate concrete mixtures met workability standards and had improved strength and durability compared to natural aggregate concrete.
IRJET- Study on Self Compacting Concrete as Partial Replacement for Fine Aggr...IRJET Journal
This document summarizes a study on the use of coarse aggregate as a partial replacement for fine aggregate in self-compacting concrete. The fine aggregate was replaced with coarse aggregate at percentages of 9%, 12%, 15%, and 18%. Testing of the concrete mixtures found that 18% replacement of fine aggregate with coarse aggregate produced optimal results for self-compacting concrete. The concrete mixtures were tested for properties such as slump flow, J-ring flow, V-funnel flow, and L-box ratio to evaluate flowability and passing ability. Compressive strength was also tested at 7 and 28 days. The results provide useful information for using coarse aggregate to partially replace fine aggregate in advanced concrete production.
Experimental Investigation on Durability Properties of Self Compacting Concre...IRJET Journal
The document discusses experimental investigation on the durability properties of self-compacting concrete by partially replacing fly ash and ground granulated blast furnace slag (GGBS). It provides background on self-compacting concrete and discusses guidelines and specifications for acceptance criteria. It then reviews several previous studies that investigated replacing natural aggregates or cement with recycled materials and assessed fresh and hardened concrete properties. The literature review found that replacement of up to 30% aggregates or cement resulted in only minor decreases in compressive strength while improving sustainability.
IRJET- Feasible Study on Self Compacting ConcreteIRJET Journal
This document summarizes a study on the use of fly ash and silica fume in self-compacting concrete. Self-compacting concrete is able to flow and fill forms under its own weight without vibration. The study aims to evaluate the effects of incorporating fly ash and silica fume on the fresh, strength, and durability properties of self-compacting concrete. Concrete mixtures containing varying proportions of fly ash and silica fume were tested to determine their compressive, tensile, and flexural strengths as well as slump flow and V-funnel tests. The results were then analyzed to assess the impact of fly ash and silica fume additions on the properties of self-compacting concrete.
This document discusses the use of granite waste powder as a filler material in self-compacting concrete (SCC). It begins with an introduction to SCC and its benefits over traditional vibrated concrete. The researcher then details their experimental process for developing SCC mixes using different proportions of granite powder, water, cement, coarse aggregate, and fine aggregate. A number of initial trial mixes were produced to determine the optimal mix proportions and flow properties. The compressive strengths of the trial mixes were then tested at 3 and 7 days. Based on the flowability and early strength results, the best performing mixes for each paste volume were selected for further testing of hardened properties like flexural strength, split tensile strength, and density. The results showed
This document summarizes a study on replacing fine aggregates in self-compacting concrete with brick dust and fly ash. It provides background on self-compacting concrete and its advantages over normal vibrated concrete. A literature review covers previous research on the effects of paste content, powder content, water-to-cement ratio, and use of fly ash and brick dust. The experimental section describes the materials used - cement, brick dust, fly ash, water, and fine aggregates. Tests were conducted on compressive strength, splitting tensile strength, and flexural strength of self-compacting concrete with different ratios of fly ash and brick dust replacement of fine aggregates at 7, 28, and 56 days.
IRJET- Experimental Study on Self Compacting Concretre by Partial Replacement...IRJET Journal
This study experimentally investigates the use of palm oil fuel ash (POFA) as a partial replacement for cement in self-compacting concrete. POFA is a waste product from the palm oil industry in Malaysia. The study replaces cement with 0%, 10%, 20%, 30%, and 50% POFA by weight of cement, keeping a water-binder ratio of 0.40. Fresh and hardened properties are evaluated, including filling ability, passing ability, compressive strength, flexural strength, and split tensile strength. Test results show that replacing up to 30% of cement with POFA does not significantly reduce strength. This suggests POFA has potential as a supplementary cementitious material to reduce the cost of self-comp
IRJET- A Review on Strength Properties of Concrete with Partial Replacement o...IRJET Journal
This document summarizes research on the strength properties of concrete with partial replacement of cement by ground granulated blast furnace slag (GGBS). It first provides background on GGBS, noting that it is a byproduct of iron manufacturing with similar chemical composition to portland cement. The document then reviews literature on the topic, finding that compressive strength of GGBS concrete increased at 40% replacement but decreased with further additions. Experimental results from the study found optimal GGBS replacement is 40% for maximum strength. In conclusion, GGBS can improve concrete strength when used to partially replace cement.
An Experimental Investigation on Self Compacting Concrete with Artificial Fin...IRJET Journal
This document summarizes an experimental investigation on the properties of self-compacting concrete that uses artificial fine aggregate as a replacement for natural fine aggregate. The study tested different mixtures with cement replaced by fly ash, silica fume, and metakaolin. The concrete mixtures were tested for workability, mechanical properties like compressive strength, and durability properties like water absorption and acid resistance. The results showed that the artificial fine aggregate concrete mixtures met workability standards and had improved strength and durability compared to natural aggregate concrete.
IRJET- Study on Self Compacting Concrete as Partial Replacement for Fine Aggr...IRJET Journal
This document summarizes a study on the use of coarse aggregate as a partial replacement for fine aggregate in self-compacting concrete. The fine aggregate was replaced with coarse aggregate at percentages of 9%, 12%, 15%, and 18%. Testing of the concrete mixtures found that 18% replacement of fine aggregate with coarse aggregate produced optimal results for self-compacting concrete. The concrete mixtures were tested for properties such as slump flow, J-ring flow, V-funnel flow, and L-box ratio to evaluate flowability and passing ability. Compressive strength was also tested at 7 and 28 days. The results provide useful information for using coarse aggregate to partially replace fine aggregate in advanced concrete production.
Experimental Investigation on Durability Properties of Self Compacting Concre...IRJET Journal
The document discusses experimental investigation on the durability properties of self-compacting concrete by partially replacing fly ash and ground granulated blast furnace slag (GGBS). It provides background on self-compacting concrete and discusses guidelines and specifications for acceptance criteria. It then reviews several previous studies that investigated replacing natural aggregates or cement with recycled materials and assessed fresh and hardened concrete properties. The literature review found that replacement of up to 30% aggregates or cement resulted in only minor decreases in compressive strength while improving sustainability.
IRJET- Feasible Study on Self Compacting ConcreteIRJET Journal
This document summarizes a study on the use of fly ash and silica fume in self-compacting concrete. Self-compacting concrete is able to flow and fill forms under its own weight without vibration. The study aims to evaluate the effects of incorporating fly ash and silica fume on the fresh, strength, and durability properties of self-compacting concrete. Concrete mixtures containing varying proportions of fly ash and silica fume were tested to determine their compressive, tensile, and flexural strengths as well as slump flow and V-funnel tests. The results were then analyzed to assess the impact of fly ash and silica fume additions on the properties of self-compacting concrete.
This document discusses the use of granite waste powder as a filler material in self-compacting concrete (SCC). It begins with an introduction to SCC and its benefits over traditional vibrated concrete. The researcher then details their experimental process for developing SCC mixes using different proportions of granite powder, water, cement, coarse aggregate, and fine aggregate. A number of initial trial mixes were produced to determine the optimal mix proportions and flow properties. The compressive strengths of the trial mixes were then tested at 3 and 7 days. Based on the flowability and early strength results, the best performing mixes for each paste volume were selected for further testing of hardened properties like flexural strength, split tensile strength, and density. The results showed
Experimental Investigation of SCC Using M-Sand with Lime Stone as Part Replac...IRJET Journal
This document summarizes an experimental investigation into the properties of self-compacting concrete (SCC) made with manufactured sand and partial replacement of cement with limestone. The researchers tested SCC mixes with 0%, 10%, 20%, 30%, and 40% replacement of cement with limestone. They evaluated fresh concrete properties like slump flow, V-funnel, L-box, U-box, and J-ring tests. Hardened concrete properties such as compressive strength, split tensile strength, and flexural strength were also tested at 7 and 28 days. The results showed that SCC with up to 30% limestone replacement met acceptance criteria for workability and achieved comparable mechanical properties to the control mix.
This document provides an overview and analysis of self-compacting concrete (SCC). It discusses the development of SCC, which originated in Japan in response to a need for durable concrete structures that did not depend on skilled labor for proper compaction. The key characteristics of SCC are that it can flow and consolidate under its own weight without vibration. This allows for easier placement and results in improved quality, strength, and durability. The document examines the materials, properties, testing, and mix design of SCC. It also outlines some common applications of SCC in Japan such as bridges, buildings, and large infrastructure projects.
This document provides an introduction to self-compacting concrete (SCC). SCC is concrete that can be placed and consolidated under its own weight without vibration. It was developed in Japan in the late 1980s to address issues with adequate compaction. The key properties of SCC are high flowability and good cohesiveness. These properties allow SCC to fill forms and pass through reinforced areas without segregation or honeycombing. SCC offers advantages over traditional vibrated concrete such as faster construction, improved durability, better surface finish, and a safer working environment by eliminating vibration. While SCC provides benefits, it also has a higher material cost due to increased binder and chemical admixture contents required.
IRJET- An Expermental Study on Self Compacting Concrete by Replacing by Marbl...IRJET Journal
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.
An Analytical and Experimental Investigation of Ultimate Load Carrying capaci...IRJET Journal
This document presents the results of a study investigating the performance of self-compacting concrete containing furnace slag. Self-compacting concrete has advantages in technical, economic and environmental areas. The study aims to replace furnace slag for fine aggregates in self-compacting concrete mixtures. Experimental tests were conducted on concrete cubes, cylinders and prisms with furnace slag replacements ranging from 0-20% to determine the effects on mechanical properties. The results showed that concrete achieves optimal strength at a particular furnace slag replacement percentage, beyond which strength is reduced. Finite element analysis was also used to model and analyze reinforced concrete columns.
IRJET- Self-Compacting Self-Curing Concrete: A ReviewIRJET Journal
This document provides a literature review on self-compacting self-curing concrete. It begins with an introduction to self-compacting concrete and self-curing concrete. It then reviews several studies on self-compacting concrete, self-curing concrete, and self-compacting self-curing concrete. These studies investigated the effects of different admixtures and curing methods on the workability and strength properties of concrete. The review found that self-compacting self-curing concrete can provide the benefits of both self-compaction and self-curing, resulting in easier placement and strength properties comparable to traditionally cured concrete.
IRJET- Performance of RC Beams Cast using Normal and Self-Compacting Concrete...IRJET Journal
This document presents research on the performance of reinforced concrete (RC) beams made with normal concrete and self-compacting concrete (SCC) with different reinforcement ratios. Trial mixes were developed for normal concrete and SCC to select suitable mixes. Beams were cast using the selected normal and SCC mixes with under, balanced, and over reinforcement ratios. The beams were tested and analyzed according to the Egyptian code of practice (ECP) and American concrete institute (ACI) code to compare deflections. Test results showed differences in cracking and failure loads between experimental, ECP, and ACI analyses of the beams. The research aims to investigate the structural performance of SCC beams compared to normal concrete beams and verify differences between deflection
IRJET- High Strength Reduced Modulus of ConcreteIRJET Journal
This document discusses a study on reducing the modulus of elasticity (stiffness) of high-performance concrete (HPC) without compromising its strength. The study investigates replacing natural coarse aggregate with weathered aggregate in an M50 concrete mix. Tests show that the weathered aggregate concrete has lower modulus of elasticity values compared to traditional concrete mixes, while still maintaining adequate compressive strength. For example, at 28 days the weathered concrete has a 54.6 MPa strength versus 71.25 MPa for traditional concrete, but a lower modulus of elasticity of 2.0 GPa compared to 3.2 GPa. The results indicate that using weathered coarse aggregate is effective for reducing stresses in concrete structures without
Scope of Producing Concrete by Replacing Cement with Marble Dust & Doping Sup...IRJET Journal
The document reviews research on producing more sustainable concrete by partially replacing cement with marble dust at different percentages and adding a super plasticizer. Studies found that replacing up to 15% of cement with marble dust can increase concrete strength compared to conventional mixes. The addition of super plasticizers was shown to improve the workability and strength of concrete mixes containing marble dust as a cement replacement.
Study of Mechanical Properties in SCC by Blending Cement Partially With Fly A...IJSRD
The development of self-compacting concrete has been one of the most important materials in the modern building industry. The purpose of this concrete concept is to decrease the risk due to human factor. The use of SCC is spreading worldwide because of its very attractive properties. In the present investigation Blended SCC is the one in which some percentage of cement content used for the concrete is replaced by any of the mineral admixtures. Here, the present study to development of blended self-compacting concrete by replaced in the mineral admixtures using Fly ash 0-30% and metakaolin 0-30% as the weight of cement. Study the rheological properties and mechanical properties of developed blended SCC mixes in the laboratory condition and different curing ages. In recent years, many researchers have established that the use of supplementary cementatious materials (SCMs) like blast furnace slag, silica fume, metakaolin (MK), fly ash (FA) and rice husk ash (RHA) etc. can, not only improve the various properties of concrete both in its fresh and hardened states, but also can contribute to economy in construction costsruning.
IRJET-Permeable Concrete as a Road PavementIRJET Journal
This document discusses permeable concrete as a potential pavement material. Permeable concrete contains voids that allow water to drain through it, addressing issues like waterlogging. It can reduce costs by eliminating needs for drainage systems. The document reviews studies on permeable concrete properties like strength and permeability. Mix designs are presented and tested, with a 4.5:1:0.4 aggregate-cement-water ratio found to produce the highest strength. Permeable concrete is found to be suitable for low-traffic rural roads but lacks strength for high-traffic areas. It has benefits like groundwater recharge if implemented but requires more study.
IRJET- Experimental Investigation of Epoxy Polymer Concrete with Partial Repl...IRJET Journal
This document summarizes an experimental investigation into epoxy polymer concrete with partial replacement of cement by Alccofine. The study aims to evaluate the effectiveness and performance of concrete where OPC cement is replaced with Alccofine 1203. Epoxy resin is added to improve strength and properties, while Alccofine is used to partially replace cement to reduce carbon dioxide emissions. Specimens are tested with different epoxy and Alccofine proportions and their mechanical properties evaluated. Previous studies found that Alccofine improves strength and durability at the 15% replacement level and that combinations of Alccofine and other materials like fly ash can further increase compressive strength.
Self-compacting concrete (SCC) is a highly fluid concrete that can spread and consolidate under its own weight without vibration. It was developed in Japan in the 1980s to solve issues with vibration-compacted concrete like poor quality. SCC flows easily into formwork and passes through reinforced areas without blocking. It has improved strength and durability due to more complete compaction. SCC uses the same materials as regular concrete but requires superplasticizers and viscosity agents to achieve flowability without segregation. Tests evaluate properties like filling and passing abilities that determine if SCC meets standards. SCC provides benefits over regular concrete such as faster construction, improved working conditions, and higher quality structures.
This document discusses research into producing high-strength concrete with a compressive strength of 80 MPa using locally available materials in Sudan. It describes two statistical approaches to developing optimized concrete mix designs: the ACI 211.4 method and using JMP statistical software. Hundreds of concrete specimens were tested with local Sudanese aggregates, silica fume, fly ash, and superplasticizers at different ages and water-cement ratios. Thirty-three high-strength concrete mix designs were successfully developed and evaluated. The results provide guidance on optimizing mix properties and demonstrate that local materials can be used to produce high-strength concrete in Sudan.
Project report on self compacting concreterajhoney
This project report summarizes research conducted on developing self-compacting concrete using industrial waste. A group of students conducted the research under the guidance of Prof. M. B. Kumthekar to fulfill requirements for a B.E. in Civil Engineering from Shivaji University, Kolhapur. The report documents the need for self-compacting concrete to improve construction efficiency and concrete quality. It describes tests conducted to utilize red mud and foundry waste sand as partial replacements for cement in self-compacting concrete mixtures and analyze the results.
IRJET- A Review Paper on Experimental Investigation of Crumb Rubber ConcreteIRJET Journal
The document reviews previous experimental work on crumb rubber concrete. It summarizes several studies that investigated replacing natural aggregates or mixtures with crumb rubber. The studies found that compressive strength generally decreased as crumb rubber content increased but durability properties like resistance to freezing/thawing and sulfate attack improved. Some studies found that pretreating the crumb rubber with chemicals or coatings could minimize strength reductions. Replacing up to 20% of fine aggregates or 5% of total mixtures with crumb rubber produced acceptable strength properties for some applications while improving sustainability by using waste tire material.
Thesis on analyzing the properties of self compacting concrete made with diff...Md.Abdullah Pk
The document describes a thesis submitted by five students to analyze the properties of self-compacting concrete made with different proportions of recycled aggregate. The objectives are to compare the fresh and hardened properties of self-compacting concrete with recycled aggregate self-compacting concrete. Concrete mixes were made by replacing the coarse aggregate with 30%, 40%, and 50% recycled coarse aggregate. The mixes were tested for fresh properties like flowability and hardened properties like compressive strength, splitting tensile strength, water absorption, and modulus of elasticity. The results of the tests were analyzed to evaluate the properties.
IRJET - Experimental Investigation on Performance of Coatings in RC Slab with...IRJET Journal
This document presents the results of an experimental investigation on the performance of coatings in reinforced concrete slabs with partial replacement of quarry dust as fine aggregate. Various coatings were tested including zinc phosphate, rust remover, and red oxide polymer. Concrete mixes with 10% and 20% replacement of fine aggregate with quarry dust were tested and showed compressive strengths within 10% of the control mix. The coatings helped reduce corrosion of the steel reinforcement and improved the strength and durability of the concrete. In conclusion, quarry dust can be effectively used to partially replace fine aggregate in concrete.
IRJET- Studies on Air Quality Status at Selected Pockets of Indian Capital DelhiIRJET Journal
This document summarizes a study on the strength characteristics of geopolymer concrete. The study investigated how replacing fly ash with varying amounts of glass powder (0-20%) impacted the compressive strength of geopolymer concrete over 7 and 28 days. The maximum 7 and 28-day compressive strengths were achieved with 5% glass powder replacement. The flexural, split tensile, and water absorption properties were also examined. Additionally, the effects of replacing fly ash with ground granulated blast furnace slag (GGBS) at percentages from 5-20% were investigated, with 15% GGBS achieving the highest 28-day compressive strength. The study aims to utilize industrial waste to reduce the environmental impact of concrete production
A Study on Properties of Self Compacting Concrete with Slag as Coarse AggregateIRJET Journal
This document presents a study on the properties of self-compacting concrete using blast furnace slag as a coarse aggregate replacement. The study aims to determine the strength characteristics of slag for application in self-compacting concrete. Specimens with 0%, 10%, 20%, 40%, and 60% replacement of natural coarse aggregate with slag aggregate were produced and tested. Workability, compressive strength, and split tensile strength tests were conducted on the specimens. The results were then compared to code requirements to evaluate the performance of self-compacting concrete with slag aggregate replacement.
Study on Alccofine based High Strength Self-compacting Fibrous Concrete- A re...IRJET Journal
This document provides a review of research on alccofine-based high strength self-compacting fibrous concrete. It begins with an introduction to high strength concrete, fibrous concrete, self-compacting concrete, and the benefits of fibrous reinforced self-compacting concrete. It then summarizes 13 research papers on topics including replacing aggregates with waste materials, using hybrid fibers, determining optimal fiber contents, and using mineral admixtures like fly ash and alccofine. The conclusion discusses how alccofine can increase self-compatibility and early strength of self-compacting concrete mixes and how fibers can improve tensile strength, ductility, and crack resistance.
Experimental Investigation of SCC Using M-Sand with Lime Stone as Part Replac...IRJET Journal
This document summarizes an experimental investigation into the properties of self-compacting concrete (SCC) made with manufactured sand and partial replacement of cement with limestone. The researchers tested SCC mixes with 0%, 10%, 20%, 30%, and 40% replacement of cement with limestone. They evaluated fresh concrete properties like slump flow, V-funnel, L-box, U-box, and J-ring tests. Hardened concrete properties such as compressive strength, split tensile strength, and flexural strength were also tested at 7 and 28 days. The results showed that SCC with up to 30% limestone replacement met acceptance criteria for workability and achieved comparable mechanical properties to the control mix.
This document provides an overview and analysis of self-compacting concrete (SCC). It discusses the development of SCC, which originated in Japan in response to a need for durable concrete structures that did not depend on skilled labor for proper compaction. The key characteristics of SCC are that it can flow and consolidate under its own weight without vibration. This allows for easier placement and results in improved quality, strength, and durability. The document examines the materials, properties, testing, and mix design of SCC. It also outlines some common applications of SCC in Japan such as bridges, buildings, and large infrastructure projects.
This document provides an introduction to self-compacting concrete (SCC). SCC is concrete that can be placed and consolidated under its own weight without vibration. It was developed in Japan in the late 1980s to address issues with adequate compaction. The key properties of SCC are high flowability and good cohesiveness. These properties allow SCC to fill forms and pass through reinforced areas without segregation or honeycombing. SCC offers advantages over traditional vibrated concrete such as faster construction, improved durability, better surface finish, and a safer working environment by eliminating vibration. While SCC provides benefits, it also has a higher material cost due to increased binder and chemical admixture contents required.
IRJET- An Expermental Study on Self Compacting Concrete by Replacing by Marbl...IRJET Journal
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.
An Analytical and Experimental Investigation of Ultimate Load Carrying capaci...IRJET Journal
This document presents the results of a study investigating the performance of self-compacting concrete containing furnace slag. Self-compacting concrete has advantages in technical, economic and environmental areas. The study aims to replace furnace slag for fine aggregates in self-compacting concrete mixtures. Experimental tests were conducted on concrete cubes, cylinders and prisms with furnace slag replacements ranging from 0-20% to determine the effects on mechanical properties. The results showed that concrete achieves optimal strength at a particular furnace slag replacement percentage, beyond which strength is reduced. Finite element analysis was also used to model and analyze reinforced concrete columns.
IRJET- Self-Compacting Self-Curing Concrete: A ReviewIRJET Journal
This document provides a literature review on self-compacting self-curing concrete. It begins with an introduction to self-compacting concrete and self-curing concrete. It then reviews several studies on self-compacting concrete, self-curing concrete, and self-compacting self-curing concrete. These studies investigated the effects of different admixtures and curing methods on the workability and strength properties of concrete. The review found that self-compacting self-curing concrete can provide the benefits of both self-compaction and self-curing, resulting in easier placement and strength properties comparable to traditionally cured concrete.
IRJET- Performance of RC Beams Cast using Normal and Self-Compacting Concrete...IRJET Journal
This document presents research on the performance of reinforced concrete (RC) beams made with normal concrete and self-compacting concrete (SCC) with different reinforcement ratios. Trial mixes were developed for normal concrete and SCC to select suitable mixes. Beams were cast using the selected normal and SCC mixes with under, balanced, and over reinforcement ratios. The beams were tested and analyzed according to the Egyptian code of practice (ECP) and American concrete institute (ACI) code to compare deflections. Test results showed differences in cracking and failure loads between experimental, ECP, and ACI analyses of the beams. The research aims to investigate the structural performance of SCC beams compared to normal concrete beams and verify differences between deflection
IRJET- High Strength Reduced Modulus of ConcreteIRJET Journal
This document discusses a study on reducing the modulus of elasticity (stiffness) of high-performance concrete (HPC) without compromising its strength. The study investigates replacing natural coarse aggregate with weathered aggregate in an M50 concrete mix. Tests show that the weathered aggregate concrete has lower modulus of elasticity values compared to traditional concrete mixes, while still maintaining adequate compressive strength. For example, at 28 days the weathered concrete has a 54.6 MPa strength versus 71.25 MPa for traditional concrete, but a lower modulus of elasticity of 2.0 GPa compared to 3.2 GPa. The results indicate that using weathered coarse aggregate is effective for reducing stresses in concrete structures without
Scope of Producing Concrete by Replacing Cement with Marble Dust & Doping Sup...IRJET Journal
The document reviews research on producing more sustainable concrete by partially replacing cement with marble dust at different percentages and adding a super plasticizer. Studies found that replacing up to 15% of cement with marble dust can increase concrete strength compared to conventional mixes. The addition of super plasticizers was shown to improve the workability and strength of concrete mixes containing marble dust as a cement replacement.
Study of Mechanical Properties in SCC by Blending Cement Partially With Fly A...IJSRD
The development of self-compacting concrete has been one of the most important materials in the modern building industry. The purpose of this concrete concept is to decrease the risk due to human factor. The use of SCC is spreading worldwide because of its very attractive properties. In the present investigation Blended SCC is the one in which some percentage of cement content used for the concrete is replaced by any of the mineral admixtures. Here, the present study to development of blended self-compacting concrete by replaced in the mineral admixtures using Fly ash 0-30% and metakaolin 0-30% as the weight of cement. Study the rheological properties and mechanical properties of developed blended SCC mixes in the laboratory condition and different curing ages. In recent years, many researchers have established that the use of supplementary cementatious materials (SCMs) like blast furnace slag, silica fume, metakaolin (MK), fly ash (FA) and rice husk ash (RHA) etc. can, not only improve the various properties of concrete both in its fresh and hardened states, but also can contribute to economy in construction costsruning.
IRJET-Permeable Concrete as a Road PavementIRJET Journal
This document discusses permeable concrete as a potential pavement material. Permeable concrete contains voids that allow water to drain through it, addressing issues like waterlogging. It can reduce costs by eliminating needs for drainage systems. The document reviews studies on permeable concrete properties like strength and permeability. Mix designs are presented and tested, with a 4.5:1:0.4 aggregate-cement-water ratio found to produce the highest strength. Permeable concrete is found to be suitable for low-traffic rural roads but lacks strength for high-traffic areas. It has benefits like groundwater recharge if implemented but requires more study.
IRJET- Experimental Investigation of Epoxy Polymer Concrete with Partial Repl...IRJET Journal
This document summarizes an experimental investigation into epoxy polymer concrete with partial replacement of cement by Alccofine. The study aims to evaluate the effectiveness and performance of concrete where OPC cement is replaced with Alccofine 1203. Epoxy resin is added to improve strength and properties, while Alccofine is used to partially replace cement to reduce carbon dioxide emissions. Specimens are tested with different epoxy and Alccofine proportions and their mechanical properties evaluated. Previous studies found that Alccofine improves strength and durability at the 15% replacement level and that combinations of Alccofine and other materials like fly ash can further increase compressive strength.
Self-compacting concrete (SCC) is a highly fluid concrete that can spread and consolidate under its own weight without vibration. It was developed in Japan in the 1980s to solve issues with vibration-compacted concrete like poor quality. SCC flows easily into formwork and passes through reinforced areas without blocking. It has improved strength and durability due to more complete compaction. SCC uses the same materials as regular concrete but requires superplasticizers and viscosity agents to achieve flowability without segregation. Tests evaluate properties like filling and passing abilities that determine if SCC meets standards. SCC provides benefits over regular concrete such as faster construction, improved working conditions, and higher quality structures.
This document discusses research into producing high-strength concrete with a compressive strength of 80 MPa using locally available materials in Sudan. It describes two statistical approaches to developing optimized concrete mix designs: the ACI 211.4 method and using JMP statistical software. Hundreds of concrete specimens were tested with local Sudanese aggregates, silica fume, fly ash, and superplasticizers at different ages and water-cement ratios. Thirty-three high-strength concrete mix designs were successfully developed and evaluated. The results provide guidance on optimizing mix properties and demonstrate that local materials can be used to produce high-strength concrete in Sudan.
Project report on self compacting concreterajhoney
This project report summarizes research conducted on developing self-compacting concrete using industrial waste. A group of students conducted the research under the guidance of Prof. M. B. Kumthekar to fulfill requirements for a B.E. in Civil Engineering from Shivaji University, Kolhapur. The report documents the need for self-compacting concrete to improve construction efficiency and concrete quality. It describes tests conducted to utilize red mud and foundry waste sand as partial replacements for cement in self-compacting concrete mixtures and analyze the results.
IRJET- A Review Paper on Experimental Investigation of Crumb Rubber ConcreteIRJET Journal
The document reviews previous experimental work on crumb rubber concrete. It summarizes several studies that investigated replacing natural aggregates or mixtures with crumb rubber. The studies found that compressive strength generally decreased as crumb rubber content increased but durability properties like resistance to freezing/thawing and sulfate attack improved. Some studies found that pretreating the crumb rubber with chemicals or coatings could minimize strength reductions. Replacing up to 20% of fine aggregates or 5% of total mixtures with crumb rubber produced acceptable strength properties for some applications while improving sustainability by using waste tire material.
Thesis on analyzing the properties of self compacting concrete made with diff...Md.Abdullah Pk
The document describes a thesis submitted by five students to analyze the properties of self-compacting concrete made with different proportions of recycled aggregate. The objectives are to compare the fresh and hardened properties of self-compacting concrete with recycled aggregate self-compacting concrete. Concrete mixes were made by replacing the coarse aggregate with 30%, 40%, and 50% recycled coarse aggregate. The mixes were tested for fresh properties like flowability and hardened properties like compressive strength, splitting tensile strength, water absorption, and modulus of elasticity. The results of the tests were analyzed to evaluate the properties.
IRJET - Experimental Investigation on Performance of Coatings in RC Slab with...IRJET Journal
This document presents the results of an experimental investigation on the performance of coatings in reinforced concrete slabs with partial replacement of quarry dust as fine aggregate. Various coatings were tested including zinc phosphate, rust remover, and red oxide polymer. Concrete mixes with 10% and 20% replacement of fine aggregate with quarry dust were tested and showed compressive strengths within 10% of the control mix. The coatings helped reduce corrosion of the steel reinforcement and improved the strength and durability of the concrete. In conclusion, quarry dust can be effectively used to partially replace fine aggregate in concrete.
IRJET- Studies on Air Quality Status at Selected Pockets of Indian Capital DelhiIRJET Journal
This document summarizes a study on the strength characteristics of geopolymer concrete. The study investigated how replacing fly ash with varying amounts of glass powder (0-20%) impacted the compressive strength of geopolymer concrete over 7 and 28 days. The maximum 7 and 28-day compressive strengths were achieved with 5% glass powder replacement. The flexural, split tensile, and water absorption properties were also examined. Additionally, the effects of replacing fly ash with ground granulated blast furnace slag (GGBS) at percentages from 5-20% were investigated, with 15% GGBS achieving the highest 28-day compressive strength. The study aims to utilize industrial waste to reduce the environmental impact of concrete production
A Study on Properties of Self Compacting Concrete with Slag as Coarse AggregateIRJET Journal
This document presents a study on the properties of self-compacting concrete using blast furnace slag as a coarse aggregate replacement. The study aims to determine the strength characteristics of slag for application in self-compacting concrete. Specimens with 0%, 10%, 20%, 40%, and 60% replacement of natural coarse aggregate with slag aggregate were produced and tested. Workability, compressive strength, and split tensile strength tests were conducted on the specimens. The results were then compared to code requirements to evaluate the performance of self-compacting concrete with slag aggregate replacement.
Study on Alccofine based High Strength Self-compacting Fibrous Concrete- A re...IRJET Journal
This document provides a review of research on alccofine-based high strength self-compacting fibrous concrete. It begins with an introduction to high strength concrete, fibrous concrete, self-compacting concrete, and the benefits of fibrous reinforced self-compacting concrete. It then summarizes 13 research papers on topics including replacing aggregates with waste materials, using hybrid fibers, determining optimal fiber contents, and using mineral admixtures like fly ash and alccofine. The conclusion discusses how alccofine can increase self-compatibility and early strength of self-compacting concrete mixes and how fibers can improve tensile strength, ductility, and crack resistance.
INFLUENCE OF VISCOSCITY MODIFYING ADMIXTURES ON FRESH AND HARDENED PROPERTIES...Ijripublishers Ijri
The use of self-compacting concrete (scc) in general building and civil engineering constructions is becoming popular
over the years ever since it was invented and guide-lines have been formulated by the efnarc (european federation of
national association representing concrete) in 2005. Although in india, we do not have any specific codal provisions for
scc similar to normal concrete, considerable research has been done in both development of scc and its applications with
various admixtures and fibers to enhance the properties of scc in hardened state. As scc is very sensitive to variations
in moisture content and gradation of aggregates, construction sites face difficulties in free flow of scc.
INFLUENCE OF VISCOSCITY MODIFYING ADMIXTURES ON FRESH AND HARDENED PROPERTIES...Ijripublishers Ijri
The use of self-compacting concrete (scc) in general building and civil engineering constructions is becoming popular
over the years ever since it was invented and guide-lines have been formulated by the efnarc (european federation of
national association representing concrete) in 2005. Although in india, we do not have any specific codal provisions for
scc similar to normal concrete, considerable research has been done in both development of scc and its applications with
various admixtures and fibers to enhance the properties of scc in hardened state. As scc is very sensitive to variations
in moisture content and gradation of aggregates, construction sites face difficulties in free flow of scc.
A Multifaceted Study on Mechanical Strength, Workability and Microstructural ...IRJET Journal
This document summarizes a study that investigated the mechanical properties, workability, and microstructure of concrete containing zeolite. The study included testing the compressive strength, flexural strength, and durability of concrete with different zeolite concentrations. Microscopy and spectroscopy methods were used to examine the interactions between zeolite particles and the cement matrix. The results provide insights into how zeolite affects concrete performance and how it could enable more sustainable construction practices.
This document presents a study on the macro level properties of self-consolidating concrete (SCC) using silica fume and fly ash. The study aims to investigate the fresh and mechanical properties of SCC mixtures containing 10% silica fume and 25% fly ash as partial replacements for cement. Three SCC mixtures were produced using fine aggregates with different fineness moduli (2.5, 2.7, and 2.9). Test results found that the mixture with a fineness modulus of 2.7 satisfied requirements for filling ability, passing ability, and hardened properties according to EFNARC standards.
STUDY OF MACRO LEVEL PROPERTIES OF SCC USING SILICA FUME AND FLY ASH BY USING...IAEME Publication
This document discusses a study on the macro level properties of self-consolidating concrete (SCC) using silica fume and fly ash. The study aims to investigate the fresh and mechanical properties of SCC mixtures containing 10% silica fume and 25% fly ash as partial replacements for cement. Three SCC mixtures were produced with different fine aggregate fineness moduli (2.5, 2.7, and 2.9). Test results found that the mixture with a fineness modulus of 2.7 satisfied filling and passing ability requirements according to EFNARC standards. Hardened properties, such as compressive, splitting tensile, and flexural strength, were also within specified limits for the mixture with a fin
This document is a report submitted for a bachelor's degree in civil engineering. It discusses self-compacting concrete (SCC), including acknowledging help from supervisors and faculty. The document contains chapters that will cover SCC literature, materials used, mix design, experimental procedures, results, further work, disadvantages, photographs, and conclusions. Tables and figures are listed that will be included to illustrate test methods and results from studying SCC.
IRJET- Achieving the Mechanical Properties in Conventional Concrete by using ...IRJET Journal
This document discusses a study on achieving mechanical properties in conventional concrete by adding super plasticizer and polyethylene glycol 4000. The study aims to compare the mechanical behavior of self-compacting and self-curing concrete to conventional concrete. Self-compacting concrete is made using super plasticizer, fly ash, and reduced aggregate-to-cement ratio to increase flowability. Polyethylene glycol 4000 is added as a self-curing compound instead of water curing. The mechanical properties such as compressive strength, split tensile strength, and flexural strength of self-compacting self-curing concrete beams are tested at curing periods of 7, 14, and 28 days and compared to conventional concrete specimens. Test results found
EXPERIMENTAL INVESTIGATION ON STRENGTH OF CONCRETE BY USING NANO- SILICA AND ...IRJET Journal
- The document experimentally investigates the strength of concrete when cement is partially replaced by nano-silica and fly ash.
- Testing was done on concrete cubes with cement replaced 20-30% by fly ash and 1.5-4.5% by nano-silica. The highest compressive strength was achieved with 20% fly ash and 3% nano-silica replacement.
- Results showed that up to 3% nano-silica replacement, compressive strength initially increased then decreased with further nano-silica for a given fly ash content. Replacing over 30% cement with fly ash decreased strength below the control mix.
Self compacting concrete for slip form pavingeSAT Journals
This document summarizes research on developing self-compacting concrete (SCC) mixes suitable for slip form paving applications. It describes a study that designed 9 SCC mixes with different cement replacements (GGBS, alccofine, metakaolin) to evaluate their fresh and hardened properties. A mini-paver system was used to simulate slip form paving in the laboratory. Test results on the mixes' flowability, green strength, and compressive strength are discussed to evaluate their potential for slip form paving construction.
IRJET- Performance of Fiber Reinforced Self Compacting Concrete Made with...IRJET Journal
This document presents research on fiber reinforced self-compacting concrete (FRSCC) made with manufactured sand. The study investigated the workability and mechanical strength properties of FRSCC mixtures with varying fiber types (steel and polypropylene) and dosages (0.5-2% by volume). Testing of fresh and hardened concrete properties showed that FRSCC mixtures with 1% steel fiber or 1.5% polypropylene fiber content met fresh concrete workability standards and achieved higher compressive and flexural strengths than plain self-compacting concrete. The results indicate that manufactured sand can be partially substituted for natural river sand in producing fiber reinforced self-compacting concrete with improved mechanical properties.
Effect of Waste Coarse Rubber to Self-Compacting ConcreteÖmer Acar
This document summarizes a graduation project investigating the use of waste coarse rubber in self-compacting concrete. The project tests how waste materials can be used as aggregates and finds that results are satisfactory. Self-compacting concrete provides benefits to the construction industry by not requiring vibration for compaction. The document discusses the development of self-compacting concrete in Japan in the 1980s and outlines common tests to measure properties of self-compacting concrete, such as slump flow, L-box, and V-funnel tests. The project concludes that waste coarse rubber can perform similar to normal aggregates and that further research on using recycled materials in self-compacting concrete would be beneficial for both the environment and construction industry.
Strength and Durability Properties of Self-Compacting Concrete With Micro Sil...IRJET Journal
This study investigated the strength and durability properties of self-compacting concrete with micro silica and nano silica. Tests were conducted on concrete mixtures with 0-20% micro silica and 0-4% nano silica replacements. Results showed that a combination of 15% micro silica and 3% nano silica increased the compressive strength by 25.61%, split tensile strength by 25%, and flexural strength by 19% compared to normal self-compacting concrete. This combination also improved properties like saturated water absorption, sulfate resistance, and acid resistance. In conclusion, a combination of micro silica and nano silica provided the best performance for strength and durability in self-compacting concrete.
IRJET-Strength and Durability Properties of Self-Compacting Concrete With Mic...IRJET Journal
This study evaluated the strength and durability properties of self-compacting concrete containing micro silica and nano silica. Testing showed that replacing 15% of cement with micro silica and adding 3 liters of nano silica improved the compressive strength, split tensile strength, and flexural strength by 25.61%, 25%, and 19% respectively compared to plain self-compacting concrete. Additionally, the saturated water absorption, sulfate resistance, and acid resistance of the concrete were enhanced with the addition of micro and nano silica. The results indicate that a combination of micro silica and nano silica provides the best performance for strength and durability in self-compacting concrete.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Here, I attach a PowerPoint presentation created by me for a competition held by UltraTech. Have a look at this and feel free to share your views with me.
Self-compacting concrete (SCC) is a highly flowable concrete that can spread into place and fill formwork without any mechanical consolidation. SCC was developed in Japan in the 1980s to ease construction challenges. SCC consists of the same materials as regular concrete but with optimized proportions and use of chemical and mineral admixtures to improve flowability and prevent segregation. Tests are conducted to evaluate the filling ability, passing ability and resistance to segregation of SCC. While SCC provides benefits like faster construction and improved quality, further research is still needed to fully understand its properties. SCC has been used successfully in large projects in Japan and India.
Experimental Analysis of Steel Fiber Reinforced Self Compacting ConcreteIRJET Journal
This document summarizes an experimental study on steel fiber reinforced self-compacting concrete (SFRSCC). The study aimed to analyze the mechanical properties of SFRSCC, including compressive and flexural strength, by varying the amount of steel fibers added. The document provides background on self-compacting concrete and steel fibers. It then describes the materials and methodology used, including mix design and test methods. The results showed that compressive strength increased by 25.75% and flexural strength increased by 19.47% for SFRSCC compared to plain self-compacting concrete, for a steel fiber content of 1.75%.
Study on the Effect of Ggbs & M Sand in Self Compacting oncretetheijes
Conventional concrete is the most widely used construction material throughout the world because of its versality, mouldability, durability, and resistance to fire and energy efficiency. However, its major disadvantages like poor tensile strength, limited ductility and little resistance to cracking resists its use as a structural material. Hence, in order to overcome these difficulties several new materials have been developed in the recent past.Admixtures are ingredients other than water, aggregates, hydraulic cement and fibers that are added to the concrete batch immediately before or during mixing. Mineral admixtures are usually added to concrete in larger amounts to enhance the workability of fresh concrete, to improve resistance of concrete to thermal cracking, alkali-aggregate expansion and sulphate attack and to enable a reduction in cement content. The objective of this study is to evaluate the effectiveness of various mineral admixtures in producing SCC. In this study the scope of GGBS ( Ground granular blast furnace slag ) as a mineral admixture to some percentage replace cement in SCC were studied. The study showed that a maximum of 50% GGBS were able to be used as a mineral admixture without affecting the self-compactability
Similar to IRJET- Use of Brick Dust and Fly Ash as a Replacement of Fine Aggregates in Self Compacting Concrete (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.
Microbial characterisation and identification, and potability of River Kuywa ...Open Access Research Paper
Water contamination is one of the major causes of water borne diseases worldwide. In Kenya, approximately 43% of people lack access to potable water due to human contamination. River Kuywa water is currently experiencing contamination due to human activities. Its water is widely used for domestic, agricultural, industrial and recreational purposes. This study aimed at characterizing bacteria and fungi in river Kuywa water. Water samples were randomly collected from four sites of the river: site A (Matisi), site B (Ngwelo), site C (Nzoia water pump) and site D (Chalicha), during the dry season (January-March 2018) and wet season (April-July 2018) and were transported to Maseno University Microbiology and plant pathology laboratory for analysis. The characterization and identification of bacteria and fungi were carried out using standard microbiological techniques. Nine bacterial genera and three fungi were identified from Kuywa river water. Clostridium spp., Staphylococcus spp., Enterobacter spp., Streptococcus spp., E. coli, Klebsiella spp., Shigella spp., Proteus spp. and Salmonella spp. Fungi were Fusarium oxysporum, Aspergillus flavus complex and Penicillium species. Wet season recorded highest bacterial and fungal counts (6.61-7.66 and 3.83-6.75cfu/ml) respectively. The results indicated that the river Kuywa water is polluted and therefore unsafe for human consumption before treatment. It is therefore recommended that the communities to ensure that they boil water especially for drinking.
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...Joshua Orris
The incorporation of a 3DCSM and completion of HRSC provided a tool for enhanced, data-driven, decisions to support a change in remediation closure strategies. Currently, an approved pilot study has been obtained to shut-down the remediation systems (ISCO, P&T) and conduct a hydraulic study under non-pumping conditions. A separate micro-biological bench scale treatability study was competed that yielded positive results for an emerging innovative technology. As a result, a field pilot study has commenced with results expected in nine-twelve months. With the results of the hydraulic study, field pilot studies and an updated risk assessment leading site monitoring optimization cost lifecycle savings upwards of $15MM towards an alternatively evolved best available technology remediation closure strategy.
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...Open Access Research Paper
Water polluted by dyestuffs compounds is a global threat to health and the environment; accordingly, we prepared a green novel sorbent chemical and Physical system from an algae, chitosan and chitosan nanoparticle and impregnated with algae with chitosan nanocomposite for the sorption of Malachite green dye from water. The algae with chitosan nanocomposite by a simple method and used as a recyclable and effective adsorbent for the removal of malachite green dye from aqueous solutions. Algae, chitosan, chitosan nanoparticle and algae with chitosan nanocomposite were characterized using different physicochemical methods. The functional groups and chemical compounds found in algae, chitosan, chitosan algae, chitosan nanoparticle, and chitosan nanoparticle with algae were identified using FTIR, SEM, and TGADTA/DTG techniques. The optimal adsorption conditions, different dosages, pH and Temperature the amount of algae with chitosan nanocomposite were determined. At optimized conditions and the batch equilibrium studies more than 99% of the dye was removed. The adsorption process data matched well kinetics showed that the reaction order for dye varied with pseudo-first order and pseudo-second order. Furthermore, the maximum adsorption capacity of the algae with chitosan nanocomposite toward malachite green dye reached as high as 15.5mg/g, respectively. Finally, multiple times reusing of algae with chitosan nanocomposite and removing dye from a real wastewater has made it a promising and attractive option for further practical applications.
Presented by The Global Peatlands Assessment: Mapping, Policy, and Action at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
ENVIRONMENT~ Renewable Energy Sources and their future prospects.tiwarimanvi3129
This presentation is for us to know that how our Environment need Attention for protection of our natural resources which are depleted day by day that's why we need to take time and shift our attention to renewable energy sources instead of non-renewable sources which are better and Eco-friendly for our environment. these renewable energy sources are so helpful for our planet and for every living organism which depends on environment.
Recycling and Disposal on SWM Raymond Einyu pptxRayLetai1
Increasing urbanization, rural–urban migration, rising standards of living, and rapid development associated with population growth have resulted in increased solid waste generation by industrial, domestic and other activities in Nairobi City. It has been noted in other contexts too that increasing population, changing consumption patterns, economic development, changing income, urbanization and industrialization all contribute to the increased generation of waste.
With the increasing urban population in Kenya, which is estimated to be growing at a rate higher than that of the country’s general population, waste generation and management is already a major challenge. The industrialization and urbanization process in the country, dominated by one major city – Nairobi, which has around four times the population of the next largest urban centre (Mombasa) – has witnessed an exponential increase in the generation of solid waste. It is projected that by 2030, about 50 per cent of the Kenyan population will be urban.
Aim:
A healthy, safe, secure and sustainable solid waste management system fit for a world – class city.
Improve and protect the public health of Nairobi residents and visitors.
Ecological health, diversity and productivity and maximize resource recovery through the participatory approach.
Goals:
Build awareness and capacity for source separation as essential components of sustainable waste management.
Build new environmentally sound infrastructure and systems for safe disposal of residual waste and replacing current dumpsites which should be commissioned.
Current solid waste management situation:
The status.
Solid waste generation rate is at 2240 tones / day
collection efficiently is at about 50%.
Actors i.e. city authorities, CBO’s , private firms and self-disposal
Current SWM Situation in Nairobi City:
Solid waste generation – collection – dumping
Good Practices:
• Separation – recycling – marketing.
• Open dumpsite dandora dump site through public education on source separation of waste, of which the situation can be reversed.
• Nairobi is one of the C40 cities in this respect , various actors in the solid waste management space have adopted a variety of technologies to reduce short lived climate pollutants including source separation , recycling , marketing of the recycled products.
• Through the network, it should expect to benefit from expertise of the different actors in the network in terms of applicable technologies and practices in reducing the short-lived climate pollutants.
Good practices:
Despite the dismal collection of solid waste in Nairobi city, there are practices and activities of informal actors (CBOs, CBO-SACCOs and yard shop operators) and other formal industrial actors on solid waste collection, recycling and waste reduction.
Practices and activities of these actor groups are viewed as innovations with the potential to change the way solid waste is handled.
CHALLENGES:
• Resource Allocation.
Improving the viability of probiotics by encapsulation methods for developmen...Open Access Research Paper
The popularity of functional foods among scientists and common people has been increasing day by day. Awareness and modernization make the consumer think better regarding food and nutrition. Now a day’s individual knows very well about the relation between food consumption and disease prevalence. Humans have a diversity of microbes in the gut that together form the gut microflora. Probiotics are the health-promoting live microbial cells improve host health through gut and brain connection and fighting against harmful bacteria. Bifidobacterium and Lactobacillus are the two bacterial genera which are considered to be probiotic. These good bacteria are facing challenges of viability. There are so many factors such as sensitivity to heat, pH, acidity, osmotic effect, mechanical shear, chemical components, freezing and storage time as well which affects the viability of probiotics in the dairy food matrix as well as in the gut. Multiple efforts have been done in the past and ongoing in present for these beneficial microbial population stability until their destination in the gut. One of a useful technique known as microencapsulation makes the probiotic effective in the diversified conditions and maintain these microbe’s community to the optimum level for achieving targeted benefits. Dairy products are found to be an ideal vehicle for probiotic incorporation. It has been seen that the encapsulated microbial cells show higher viability than the free cells in different processing and storage conditions as well as against bile salts in the gut. They make the food functional when incorporated, without affecting the product sensory characteristics.
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...Joshua Orris
Results of geophysics and pneumatic injection pilot tests during 2003 – 2007 yielded significant positive results for injection delivery design and contaminant mass treatment, resulting in permanent shut-down of an existing groundwater Pump & Treat system.
Accessible source areas were subsequently removed (2011) by soil excavation and treated with the placement of Emulsified Vegetable Oil EVO and zero-valent iron ZVI to accelerate treatment of impacted groundwater in overburden and weathered fractured bedrock. Post pilot test and post remediation groundwater monitoring has included analyses of CVOCs, organic fatty acids, dissolved gases and QuantArray® -Chlor to quantify key microorganisms (e.g., Dehalococcoides, Dehalobacter, etc.) and functional genes (e.g., vinyl chloride reductase, methane monooxygenase, etc.) to assess potential for reductive dechlorination and aerobic cometabolism of CVOCs.
In 2022, the first commercial application of MetaArray™ was performed at the site. MetaArray™ utilizes statistical analysis, such as principal component analysis and multivariate analysis to provide evidence that reductive dechlorination is active or even that it is slowing. This creates actionable data allowing users to save money by making important site management decisions earlier.
The results of the MetaArray™ analysis’ support vector machine (SVM) identified groundwater monitoring wells with a 80% confidence that were characterized as either Limited for Reductive Decholorination or had a High Reductive Reduction Dechlorination potential. The results of MetaArray™ will be used to further optimize the site’s post remediation monitoring program for monitored natural attenuation.
Climate Change All over the World .pptxsairaanwer024
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
Epcon is One of the World's leading Manufacturing Companies.EpconLP
Epcon is One of the World's leading Manufacturing Companies. With over 4000 installations worldwide, EPCON has been pioneering new techniques since 1977 that have become industry standards now. Founded in 1977, Epcon has grown from a one-man operation to a global leader in developing and manufacturing innovative air pollution control technology and industrial heating equipment.