This document summarizes an experimental investigation on bubble deck slabs containing high density polyethylene (HDPE) spheres. Three slab specimens were cast and tested: a conventional slab without spheres, and two bubble deck slabs with zig-zag and uniform arrangements of 60mm HDPE spheres. The bubble deck slabs were found to have significantly reduced self-weight compared to the conventional slab, with up to a 1/3 reduction in thickness. Load testing showed that the bubble deck slabs maintained sufficient load carrying capacity despite the weight reduction. The results indicate that bubble deck construction can provide weight and cost savings for buildings without compromising structural integrity.
IRJET - Study on Partial Replacement of Cement by Ground Granulated Blast Fur...IRJET Journal
The document discusses a study on partially replacing cement with ground granulated blast furnace slag (GGBS) and adding carbon fibers to concrete. The main objective is to design M30 grade concrete and test the strength and durability by replacing 40% of cement with GGBS and adding 0-1.5% carbon fibers by volume. Test results showed increases in compressive, split tensile, and flexural strengths of the carbon fiber reinforced concrete. Literature on the uses of GGBS and carbon fibers in concrete is also reviewed, finding that GGBS replacement between 40-45% and carbon fiber addition can improve strength and durability. The study aims to determine how GGBS and carbon fibers affect the mechanical and
Influence of RGO and Fly-Ash on Cement Composite at Elevated TemperaturesIRJET Journal
The document discusses a study on the influence of adding reduced graphene oxide (RGO) and fly ash to ordinary Portland cement concrete composites. Samples were made with 0.02%, 0.04%, and 0.06% RGO and 20% fly ash by weight. Testing found that RGO and fly ash can increase compressive and tensile strength by filling pores, and help maintain properties at elevated temperatures up to 600°C. Overall, RGO and fly ash showed potential as promising fillers for ordinary Portland cement.
IRJET - Study on High Strength Concrete by using Replacement of Metakaolin an...IRJET Journal
This study investigates the use of metakaolin and copper slag as replacements for cement and fine aggregate respectively in concrete to improve strength and durability. Various literature studies showed that replacing cement with 7.5-15% metakaolin and replacing fine aggregate with 25-50% copper slag increased compressive strength by up to 40% compared to conventional concrete. The objectives of this study are to determine the optimal percentages of metakaolin and copper slag replacements. Concrete mixes with 0-12.5% metakaolin and 0-50% copper slag will be tested to evaluate compressive strength, split tensile strength and workability. The results will provide information on utilizing industrial byproducts in concrete production to enhance sustainability.
Experimental Study on Low Cost Fiber Reinforced ConcreteIRJET Journal
This document summarizes an experimental study on low-cost fiber reinforced concrete using polypropylene fibers and recycled aggregates. Concrete mixtures were prepared with natural aggregates and with 5% and 10% replacements of natural aggregates with recycled aggregates from demolished buildings. Polypropylene fibers of 6mm length were added at 0%, 0.1%, and 0.15% by weight of cement. Compressive and split tensile strengths were tested at 7, 14, and 28 days. Results showed that concrete with 0.15% fiber addition and 5% recycled aggregates achieved compressive strengths up to 30.3 MPa and split tensile strengths up to 4.3 MPa at 28 days, meeting the target strength of M20
IRJET- A Review on Behaviour of ECO Green Concrete in Construction IndustryIRJET Journal
This document reviews the behavior of eco-friendly or "green" concrete in the construction industry. It discusses how green concrete uses industrial and construction waste materials like fly ash and demolished concrete rubble as partial replacements for natural aggregates and cement. Using these recycled materials reduces environmental impacts by lowering CO2 emissions in cement production and diverting waste from landfills. The document outlines the materials used in green concrete, its environmental benefits like increased longevity and reduced energy usage compared to traditional concrete. It also discusses production methods and properties of green concrete, concluding it can reduce the construction industry's CO2 emissions while benefiting from cost savings compared to conventional concrete.
IRJET- A Study on Influence of Graphene Oxide Powder on Compressive Strength ...IRJET Journal
This document presents the results of a study on the influence of graphene oxide powder on the compressive strength of concrete. Various percentages of graphene oxide powder (0%, 0.01%, 0.02%, 0.03%, and 0.04% by weight of cement) were added to concrete mixes with different water-cement ratios. Tests found that workability was maintained at different water-cement ratios. Compressive strength generally increased with the addition of graphene oxide powder up to 0.03%, with the highest strength achieved at 0.03%. Curve fitting identified the best fit equations for mix design based on the compressive strength results.
IRJET- Experimental Study on Properties of Light Weight Foam ConcreteIRJET Journal
- The document experimentally studies the properties of lightweight foam concrete with the addition of fly ash as a cement replacement.
- Fly ash is used to replace cement in definite proportions, and the influence on the strength and density of foam concrete is analyzed.
- The results show that replacing fine aggregate with fly ash helps increase the strength of foam concrete at lower densities, allowing for a higher strength-to-density ratio and making it a more sustainable and cost-effective material.
IRJET- Best Mix Design of Floating Concrete using Pumice StoneIRJET Journal
This study investigated developing floating concrete using pumice stone as a lightweight aggregate. Pumice stone was used to partially replace conventional aggregates, making the concrete lighter than water so it would float. Various mix designs were tested by casting concrete cubes and slabs. The best mix design had a pumice stone to cement ratio of 1:2.3 and achieved a compressive strength of 2.3 MPa and weight carrying capacity of 5.55 kg/m2, allowing it to support solar panels. While floating concrete was more expensive than conventional concrete, it provides a solution for installing solar panels on otherwise unused water surfaces.
IRJET - Study on Partial Replacement of Cement by Ground Granulated Blast Fur...IRJET Journal
The document discusses a study on partially replacing cement with ground granulated blast furnace slag (GGBS) and adding carbon fibers to concrete. The main objective is to design M30 grade concrete and test the strength and durability by replacing 40% of cement with GGBS and adding 0-1.5% carbon fibers by volume. Test results showed increases in compressive, split tensile, and flexural strengths of the carbon fiber reinforced concrete. Literature on the uses of GGBS and carbon fibers in concrete is also reviewed, finding that GGBS replacement between 40-45% and carbon fiber addition can improve strength and durability. The study aims to determine how GGBS and carbon fibers affect the mechanical and
Influence of RGO and Fly-Ash on Cement Composite at Elevated TemperaturesIRJET Journal
The document discusses a study on the influence of adding reduced graphene oxide (RGO) and fly ash to ordinary Portland cement concrete composites. Samples were made with 0.02%, 0.04%, and 0.06% RGO and 20% fly ash by weight. Testing found that RGO and fly ash can increase compressive and tensile strength by filling pores, and help maintain properties at elevated temperatures up to 600°C. Overall, RGO and fly ash showed potential as promising fillers for ordinary Portland cement.
IRJET - Study on High Strength Concrete by using Replacement of Metakaolin an...IRJET Journal
This study investigates the use of metakaolin and copper slag as replacements for cement and fine aggregate respectively in concrete to improve strength and durability. Various literature studies showed that replacing cement with 7.5-15% metakaolin and replacing fine aggregate with 25-50% copper slag increased compressive strength by up to 40% compared to conventional concrete. The objectives of this study are to determine the optimal percentages of metakaolin and copper slag replacements. Concrete mixes with 0-12.5% metakaolin and 0-50% copper slag will be tested to evaluate compressive strength, split tensile strength and workability. The results will provide information on utilizing industrial byproducts in concrete production to enhance sustainability.
Experimental Study on Low Cost Fiber Reinforced ConcreteIRJET Journal
This document summarizes an experimental study on low-cost fiber reinforced concrete using polypropylene fibers and recycled aggregates. Concrete mixtures were prepared with natural aggregates and with 5% and 10% replacements of natural aggregates with recycled aggregates from demolished buildings. Polypropylene fibers of 6mm length were added at 0%, 0.1%, and 0.15% by weight of cement. Compressive and split tensile strengths were tested at 7, 14, and 28 days. Results showed that concrete with 0.15% fiber addition and 5% recycled aggregates achieved compressive strengths up to 30.3 MPa and split tensile strengths up to 4.3 MPa at 28 days, meeting the target strength of M20
IRJET- A Review on Behaviour of ECO Green Concrete in Construction IndustryIRJET Journal
This document reviews the behavior of eco-friendly or "green" concrete in the construction industry. It discusses how green concrete uses industrial and construction waste materials like fly ash and demolished concrete rubble as partial replacements for natural aggregates and cement. Using these recycled materials reduces environmental impacts by lowering CO2 emissions in cement production and diverting waste from landfills. The document outlines the materials used in green concrete, its environmental benefits like increased longevity and reduced energy usage compared to traditional concrete. It also discusses production methods and properties of green concrete, concluding it can reduce the construction industry's CO2 emissions while benefiting from cost savings compared to conventional concrete.
IRJET- A Study on Influence of Graphene Oxide Powder on Compressive Strength ...IRJET Journal
This document presents the results of a study on the influence of graphene oxide powder on the compressive strength of concrete. Various percentages of graphene oxide powder (0%, 0.01%, 0.02%, 0.03%, and 0.04% by weight of cement) were added to concrete mixes with different water-cement ratios. Tests found that workability was maintained at different water-cement ratios. Compressive strength generally increased with the addition of graphene oxide powder up to 0.03%, with the highest strength achieved at 0.03%. Curve fitting identified the best fit equations for mix design based on the compressive strength results.
IRJET- Experimental Study on Properties of Light Weight Foam ConcreteIRJET Journal
- The document experimentally studies the properties of lightweight foam concrete with the addition of fly ash as a cement replacement.
- Fly ash is used to replace cement in definite proportions, and the influence on the strength and density of foam concrete is analyzed.
- The results show that replacing fine aggregate with fly ash helps increase the strength of foam concrete at lower densities, allowing for a higher strength-to-density ratio and making it a more sustainable and cost-effective material.
IRJET- Best Mix Design of Floating Concrete using Pumice StoneIRJET Journal
This study investigated developing floating concrete using pumice stone as a lightweight aggregate. Pumice stone was used to partially replace conventional aggregates, making the concrete lighter than water so it would float. Various mix designs were tested by casting concrete cubes and slabs. The best mix design had a pumice stone to cement ratio of 1:2.3 and achieved a compressive strength of 2.3 MPa and weight carrying capacity of 5.55 kg/m2, allowing it to support solar panels. While floating concrete was more expensive than conventional concrete, it provides a solution for installing solar panels on otherwise unused water surfaces.
Effect of Granite Powder and Polypropylene Fiber on Compressive, Split Tensil...IRJET Journal
This document summarizes a study that examined the effects of adding granite powder and polypropylene fibers on the compressive, split tensile, and flexural strengths of concrete. Granite powder was used to replace river sand in proportions of 10%, 20%, and 30%. Polypropylene fibers made up 0.25% of the cement weight. Specimens were tested for strengths at 7, 28, and 56 days and after exposure to 300°C. Results showed that concrete with 20% granite powder replacement had improved compressive strength compared to normal concrete. The study aimed to develop more durable and heat-resistant concrete using industrial waste materials.
This study investigated the strength and durability properties of concrete with the addition of basalt fibers. Basalt fiber is a relatively new material that offers benefits over steel and glass fibers such as higher strength, resistance to chemicals, and lower weight. The document reported on the results of tests conducted on concrete cubes, cylinders, and beams with varying amounts of basalt fibers added. It was found that the addition of basalt fibers increased the compressive, tensile, and flexural strength of the concrete. The concrete with basalt fibers also demonstrated improved durability properties like lower water absorption and permeability. The optimal basalt fiber content was found to be 0.3% by volume, which produced the highest strengths. The study demonstrated that
The installation of Helical Confinement in the Compression Zone of reinforced High Strength Concrete beams is also investigated in this study. Helical Confinement is more effective than the rectangular ties, Compression Longitudinal reinforcement and steel fibers in increasing the strength and ductility of Confined Concrete. A total number of 3 Specimens were casted. The Pitch distance for helical confinement of two specimens is 50mm, 60mm and the Pitch distance for normal confinement is 50mm. The Specimen is of a size of 600mm X 300mm X 300mm. It contains of 8 mm dia bar as longitudinal reinforcement and 6mm dia bar as transverse reinforcement. M 40 and Fe 500 Grade steels were used. After 28 Days of Curing. The Specimens were taken out and allowed to dry and tested under universal testing machine of capacity 1000 KN. The Effect of Yield strength ductility, were studied from Stress – Strain and Load – Displacement Curves. This Study Concluded the Helical Reinforcement is an effective method for increasing the Strength and Ductility of Reinforcement High Strength Concrete Beam.
IRJET- Experimental Study on Geopolymer Concrete by using Glass FibresIRJET Journal
The document presents the results of an experimental study on geopolymer concrete reinforced with glass fibers. Geopolymer concrete is an environmentally friendly alternative to traditional Portland cement concrete that uses industrial byproducts like fly ash instead of cement. The study aimed to determine the effects of adding 1-4% glass fibers by volume on the mechanical properties of geopolymer concrete. Specimens containing various amounts of glass fibers were tested to evaluate properties like compressive strength, flexural strength, and workability. The results showed that workability decreased slightly with higher fiber content, while compressive and flexural strengths generally increased up to 3% fiber content compared to plain geopolymer concrete without fibers.
This document summarizes a student project that investigates using granite cutting dust (GCD) and steel fibers to create an economical and stronger concrete. The project will test different replacement percentages of sand with GCD and steel fibers to determine optimum amounts. Tests will examine the composite material's compressive strength, tensile strength, modulus of elasticity, flexural strength, corrosion resistance, acid resistance, water absorption and sorptivity. If successful, the concrete could be used for industrial flooring, pavements, tunnel linings and other applications.
Experimental Study on Composite Concrete RC Frame Structure using Sisal Fibreijtsrd
This project aims to compare the mechanical properties of Sisal fiber in the improvement of load carrying capacity of concrete structure in different layers. Beams and columns may be strengthened in flexure through the use of sisal fiber bonded to their tension zone using epoxy as a common adhesive. Due to several advantages of sisal fibre wrapping over conventional techniques used for structural repair and strengthening. In our project is study about load carrying capacity of an RCC frame wrapped with sisal fiber. An experimental study is to predict the maximum load carrying capacity, deflection of the composite RCC structure. Finally the results are compared with conventional framed structure, which is suitable for strength and rehabilitate the concrete structure. P. Vanmathi | A. Dharani "Experimental Study on Composite Concrete RC Frame Structure using Sisal Fibre" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31115.pdf Paper Url :https://www.ijtsrd.com/engineering/structural-engineering/31115/experimental-study-on-composite-concrete-rc-frame-structure-using-sisal-fibre/p-vanmathi
Study Of Mechanical Properties Of High Strength Concrete By Partial Replaceme...dbpublications
Concrete is considered as durable and strong material. Concrete is one of the most popular material used for constructions. The present investigation deals with High strength concrete of M60 by adding fiber material to strengthen the concrete. Partial replacement of OPC with fly ash in percentages of 0%, 5% and10% in various ratios and also add Masterpel777, super plastisizer for workability purpose. Exposure periods of 7, 14 and 28 days on various tests. In this project we have designed M60 grade concrete using Design mix of Department of Environment method of various strengths.
IRJET- Experimental Investigation of Steel Fiber Reinforced Concrete with Par...IRJET Journal
This document discusses an experimental investigation into steel fiber reinforced concrete with partial replacement of coarse aggregate by cupola slag. The following key points are discussed:
1. Steel fibers were added to concrete to improve properties like strength and ductility. Cupola slag, a byproduct from cast iron manufacturing, was used to partially replace coarse aggregate.
2. Tests were conducted to study the effect of adding hooked steel fibers and varying amounts of cupola slag on the mechanical properties of concrete, including compressive strength, split tensile strength, and flexural strength.
3. A literature review presented research on the use of steel fibers to enhance concrete properties and studies investigating the use of cupola slag as a partial replacement for
IRJET-Experimental Investigation on Flexural Behavior of Reinforced Concrete ...IRJET Journal
The document experimentally investigates the flexural behavior of reinforced concrete beams containing copper slag, fly ash, and steel fibers. Ten concrete mixtures were designed with varying percentages of copper slag up to 40% as a partial replacement for sand. Fly ash replaced 40% of the cement. Steel fibers were added to some mixtures at 1% by volume. The mixtures were tested for compressive strength, tensile strength, and flexural behavior after curing periods. Test results showed that mixtures with by-products had higher strength properties than conventional concrete, with the mixture containing 40% fly ash, 40% copper slag, and 1% steel fibers performing the best. Using industrial by-products in this way can improve concrete properties while reducing environmental impacts
IRJET- A Study on Strength Properties of Basalt Fibre Reinforced Concrete wit...IRJET Journal
This document reviews research on the strength properties of basalt fibre reinforced concrete with filler materials and recycled aggregate. It summarizes 14 studies that investigated how replacing portions of cement with materials like fly ash, Alccofine and recycled concrete aggregate, and adding basalt fibres, impacted the mechanical and durability properties of concrete. The studies found that partial replacement of cement with these materials and addition of basalt fibres can improve properties like compressive strength, flexural strength, crack resistance and sulphate resistance, while also making concrete more sustainable by reducing the use of natural resources. The optimal replacement levels vary by material but are generally around 10-20% of cement replaced.
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.
IRJET - A Review on Effect of Waste Carpet Fibres and Palm Oil Fuel Ash on Se...IRJET Journal
This document reviews the effect of waste carpet fibers and palm oil fuel ash on self-compacting fiber reinforced concrete. It first provides background on palm oil fuel ash and waste carpet fibers, which are agricultural and industrial byproducts, respectively. It then summarizes several studies that have investigated using these materials in concrete. The studies found that palm oil fuel ash can replace cement in self-compacting concrete and improve strength and durability over time. Waste carpet fibers were shown to increase flexural and tensile strength when added to concrete. Combining waste carpet fibers and palm oil fuel ash in self-compacting concrete resulted in improved strength and durability characteristics while providing an environmentally-friendly use for these wastes.
Effect of coconut fibre in concrete and to improve thehsaam hsaam
This document discusses the use of coconut fibre in concrete. Coconut fibre is extracted from the outer shell of coconuts and is one of the most ductile and tough natural fibres. It has high tensile strength and is capable of withstanding strains 4-6 times more than other natural fibres. The objective of the study is to enhance the strength properties of concrete by adding coconut fibre. Different tests will be conducted on fresh and hardened concrete with coconut fibre added at various percentages to determine workability and strength properties. The study will also investigate the effect of incorporating a superplasticizer to improve workability of concrete containing coconut fibre.
An Experimental Investigation on Steel Fiber Reinforced Concrete with Partial...IRJET Journal
This document summarizes an experimental investigation on steel fiber reinforced concrete with partial replacement of natural sand by manufactured sand. Cubes, cylinders, prisms, and L-shaped specimens of M30 grade concrete with 50% replacement of natural sand by manufactured sand and 1% steel fibers were cast and tested at 7, 14, and 28 days to evaluate mechanical properties. The tests included compressive strength, split tensile strength, flexural strength, shear strength, and the effect of high temperatures. The study aims to compare the mechanical performance of steel fiber reinforced concrete with manufactured sand to normal concrete.
IRJET- Experimental Study on Light Weight Fiber Concrete using Pumice Stone a...IRJET Journal
This document presents an experimental study on producing lightweight fiber concrete using pumice stone as a partial replacement for coarse aggregate. Pumice stone was used to replace coarse aggregate at levels of 10-50% by weight to reduce the density of the concrete. Ground granulated blast furnace slag (GGBFS) and Recron 3s fibers were also added to improve the strength properties. Concrete cubes were tested for compressive strength, flexural strength, and split tensile strength at 7 and 28 days of curing. The results showed that replacing coarse aggregate with pumice stone produced lighter weight concrete while maintaining adequate strength properties with the addition of GGBFS and fibers.
IRJET-Study on Strength and Durability Aspects of Geopolymer ConcreteIRJET Journal
This document summarizes a study on the strength and durability properties of geopolymer concrete using fly ash and ground granulated blast furnace slag (GGBS) as binders to replace cement. Various mix designs were tested with different ratios of fly ash to GGBS. The compressive strength and split tensile strength of the geopolymer concrete cubes increased with an increasing percentage of GGBS in the mix. The highest compressive strength of 66MPa was observed for a mix with a 60% fly ash and 40% GGBS ratio. Additionally, sorptivity tests found that geopolymer concrete has lower water absorption than traditional concrete, indicating better durability. The study demonstrates that geopolymer concrete
IRJET- A Study on Effect of Partial Replacement of Cement by Alccofine in Fib...IRJET Journal
This document presents a study on the effect of partial replacement of cement with Alccofine in fiber reinforced concrete. Experiments were conducted to study the impact of adding different proportions of Alccofine 1203 and two types of fibers - polypropylene and GI fibers. Tests were performed on fresh and hardened concrete to analyze workability, compressive strength and flexural strength. The results showed that addition of Alccofine and fibers increased the workability and strength of concrete, with up to 15-20% increase in compressive and flexural strength observed with partial replacement of cement with Alccofine and addition of fibers.
IRJET- Experimental Investigation of Engineering Properties of Hollow Concret...IRJET Journal
The document investigates the engineering properties of hollow concrete blocks reinforced with basalt fibre. Basalt fibre is added to hollow concrete blocks in amounts of 0.5%, 1%, and 1.5% by volume of cement to study its effect on compressive strength. Testing shows that with increased basalt fibre content, the compressive strength and density of the hollow blocks increases while water absorption decreases, with the 1.5% fibre content blocks performing best. The aim is to reduce cracking in hollow concrete block walls through the addition of basalt fibre.
IRJET- Experimental Study on Strength Characteristics of Glass Fibre Reinforc...IRJET Journal
This study experimentally analyzed the strength characteristics of glass fiber reinforced concrete columns cured in both salt water and potable water environments. Two 600mm long concrete columns with 10% metakaolin replacement and GFRP reinforcement were cast, with one column cured in salt water and the other in potable water. Non-destructive testing methods like rebound hammer and ultrasonic pulse velocity tests were used to evaluate compressive strength over 7, 14, 28, 56, and 90 day curing periods. Results found the salt water cured column reached 58MPa compressive strength at 90 days, similar to the potable water cured column. Both achieved excellent concrete quality after curing.
AN EXPERIMENTAL INVESTIGATION 0N FLOATING CONCRETE USING LIGHTWEIGHT AGGREGATESIRJET Journal
This document summarizes an experimental investigation on producing floating concrete using lightweight aggregates. Pumice stone and scoria powder were used to partially replace normal coarse and fine aggregates. Concrete mixtures with varying replacement percentages were tested. Results showed that replacing up to 20% of aggregates increased the compressive strength of the floating concrete. Using these lightweight aggregates produced concrete with lower density, reducing the self-weight of structures. The study concluded that floating concrete made in this way can help reduce environmental impacts in construction.
EFFECT ON MECHANICAL PROPERTIES OF CONCRETE USING FINE AGGREGATE AS PARTIAL R...IRJET Journal
This document investigates the effect of using fly ash as a partial replacement for fine aggregate in concrete. Fly ash is a byproduct of coal combustion in thermal power plants and its utilization remains low. The study designs concrete mixes with fly ash replacing fine sand at percentages between 46-54%. The compressive strength, flexural strength, split tensile strength, and modulus of elasticity of the concrete mixes are then tested at 7 and 28 days. The results are analyzed to understand the impact of different fly ash replacement levels on the mechanical properties of concrete.
Effect of Granite Powder and Polypropylene Fiber on Compressive, Split Tensil...IRJET Journal
This document summarizes a study that examined the effects of adding granite powder and polypropylene fibers on the compressive, split tensile, and flexural strengths of concrete. Granite powder was used to replace river sand in proportions of 10%, 20%, and 30%. Polypropylene fibers made up 0.25% of the cement weight. Specimens were tested for strengths at 7, 28, and 56 days and after exposure to 300°C. Results showed that concrete with 20% granite powder replacement had improved compressive strength compared to normal concrete. The study aimed to develop more durable and heat-resistant concrete using industrial waste materials.
This study investigated the strength and durability properties of concrete with the addition of basalt fibers. Basalt fiber is a relatively new material that offers benefits over steel and glass fibers such as higher strength, resistance to chemicals, and lower weight. The document reported on the results of tests conducted on concrete cubes, cylinders, and beams with varying amounts of basalt fibers added. It was found that the addition of basalt fibers increased the compressive, tensile, and flexural strength of the concrete. The concrete with basalt fibers also demonstrated improved durability properties like lower water absorption and permeability. The optimal basalt fiber content was found to be 0.3% by volume, which produced the highest strengths. The study demonstrated that
The installation of Helical Confinement in the Compression Zone of reinforced High Strength Concrete beams is also investigated in this study. Helical Confinement is more effective than the rectangular ties, Compression Longitudinal reinforcement and steel fibers in increasing the strength and ductility of Confined Concrete. A total number of 3 Specimens were casted. The Pitch distance for helical confinement of two specimens is 50mm, 60mm and the Pitch distance for normal confinement is 50mm. The Specimen is of a size of 600mm X 300mm X 300mm. It contains of 8 mm dia bar as longitudinal reinforcement and 6mm dia bar as transverse reinforcement. M 40 and Fe 500 Grade steels were used. After 28 Days of Curing. The Specimens were taken out and allowed to dry and tested under universal testing machine of capacity 1000 KN. The Effect of Yield strength ductility, were studied from Stress – Strain and Load – Displacement Curves. This Study Concluded the Helical Reinforcement is an effective method for increasing the Strength and Ductility of Reinforcement High Strength Concrete Beam.
IRJET- Experimental Study on Geopolymer Concrete by using Glass FibresIRJET Journal
The document presents the results of an experimental study on geopolymer concrete reinforced with glass fibers. Geopolymer concrete is an environmentally friendly alternative to traditional Portland cement concrete that uses industrial byproducts like fly ash instead of cement. The study aimed to determine the effects of adding 1-4% glass fibers by volume on the mechanical properties of geopolymer concrete. Specimens containing various amounts of glass fibers were tested to evaluate properties like compressive strength, flexural strength, and workability. The results showed that workability decreased slightly with higher fiber content, while compressive and flexural strengths generally increased up to 3% fiber content compared to plain geopolymer concrete without fibers.
This document summarizes a student project that investigates using granite cutting dust (GCD) and steel fibers to create an economical and stronger concrete. The project will test different replacement percentages of sand with GCD and steel fibers to determine optimum amounts. Tests will examine the composite material's compressive strength, tensile strength, modulus of elasticity, flexural strength, corrosion resistance, acid resistance, water absorption and sorptivity. If successful, the concrete could be used for industrial flooring, pavements, tunnel linings and other applications.
Experimental Study on Composite Concrete RC Frame Structure using Sisal Fibreijtsrd
This project aims to compare the mechanical properties of Sisal fiber in the improvement of load carrying capacity of concrete structure in different layers. Beams and columns may be strengthened in flexure through the use of sisal fiber bonded to their tension zone using epoxy as a common adhesive. Due to several advantages of sisal fibre wrapping over conventional techniques used for structural repair and strengthening. In our project is study about load carrying capacity of an RCC frame wrapped with sisal fiber. An experimental study is to predict the maximum load carrying capacity, deflection of the composite RCC structure. Finally the results are compared with conventional framed structure, which is suitable for strength and rehabilitate the concrete structure. P. Vanmathi | A. Dharani "Experimental Study on Composite Concrete RC Frame Structure using Sisal Fibre" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31115.pdf Paper Url :https://www.ijtsrd.com/engineering/structural-engineering/31115/experimental-study-on-composite-concrete-rc-frame-structure-using-sisal-fibre/p-vanmathi
Study Of Mechanical Properties Of High Strength Concrete By Partial Replaceme...dbpublications
Concrete is considered as durable and strong material. Concrete is one of the most popular material used for constructions. The present investigation deals with High strength concrete of M60 by adding fiber material to strengthen the concrete. Partial replacement of OPC with fly ash in percentages of 0%, 5% and10% in various ratios and also add Masterpel777, super plastisizer for workability purpose. Exposure periods of 7, 14 and 28 days on various tests. In this project we have designed M60 grade concrete using Design mix of Department of Environment method of various strengths.
IRJET- Experimental Investigation of Steel Fiber Reinforced Concrete with Par...IRJET Journal
This document discusses an experimental investigation into steel fiber reinforced concrete with partial replacement of coarse aggregate by cupola slag. The following key points are discussed:
1. Steel fibers were added to concrete to improve properties like strength and ductility. Cupola slag, a byproduct from cast iron manufacturing, was used to partially replace coarse aggregate.
2. Tests were conducted to study the effect of adding hooked steel fibers and varying amounts of cupola slag on the mechanical properties of concrete, including compressive strength, split tensile strength, and flexural strength.
3. A literature review presented research on the use of steel fibers to enhance concrete properties and studies investigating the use of cupola slag as a partial replacement for
IRJET-Experimental Investigation on Flexural Behavior of Reinforced Concrete ...IRJET Journal
The document experimentally investigates the flexural behavior of reinforced concrete beams containing copper slag, fly ash, and steel fibers. Ten concrete mixtures were designed with varying percentages of copper slag up to 40% as a partial replacement for sand. Fly ash replaced 40% of the cement. Steel fibers were added to some mixtures at 1% by volume. The mixtures were tested for compressive strength, tensile strength, and flexural behavior after curing periods. Test results showed that mixtures with by-products had higher strength properties than conventional concrete, with the mixture containing 40% fly ash, 40% copper slag, and 1% steel fibers performing the best. Using industrial by-products in this way can improve concrete properties while reducing environmental impacts
IRJET- A Study on Strength Properties of Basalt Fibre Reinforced Concrete wit...IRJET Journal
This document reviews research on the strength properties of basalt fibre reinforced concrete with filler materials and recycled aggregate. It summarizes 14 studies that investigated how replacing portions of cement with materials like fly ash, Alccofine and recycled concrete aggregate, and adding basalt fibres, impacted the mechanical and durability properties of concrete. The studies found that partial replacement of cement with these materials and addition of basalt fibres can improve properties like compressive strength, flexural strength, crack resistance and sulphate resistance, while also making concrete more sustainable by reducing the use of natural resources. The optimal replacement levels vary by material but are generally around 10-20% of cement replaced.
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.
IRJET - A Review on Effect of Waste Carpet Fibres and Palm Oil Fuel Ash on Se...IRJET Journal
This document reviews the effect of waste carpet fibers and palm oil fuel ash on self-compacting fiber reinforced concrete. It first provides background on palm oil fuel ash and waste carpet fibers, which are agricultural and industrial byproducts, respectively. It then summarizes several studies that have investigated using these materials in concrete. The studies found that palm oil fuel ash can replace cement in self-compacting concrete and improve strength and durability over time. Waste carpet fibers were shown to increase flexural and tensile strength when added to concrete. Combining waste carpet fibers and palm oil fuel ash in self-compacting concrete resulted in improved strength and durability characteristics while providing an environmentally-friendly use for these wastes.
Effect of coconut fibre in concrete and to improve thehsaam hsaam
This document discusses the use of coconut fibre in concrete. Coconut fibre is extracted from the outer shell of coconuts and is one of the most ductile and tough natural fibres. It has high tensile strength and is capable of withstanding strains 4-6 times more than other natural fibres. The objective of the study is to enhance the strength properties of concrete by adding coconut fibre. Different tests will be conducted on fresh and hardened concrete with coconut fibre added at various percentages to determine workability and strength properties. The study will also investigate the effect of incorporating a superplasticizer to improve workability of concrete containing coconut fibre.
An Experimental Investigation on Steel Fiber Reinforced Concrete with Partial...IRJET Journal
This document summarizes an experimental investigation on steel fiber reinforced concrete with partial replacement of natural sand by manufactured sand. Cubes, cylinders, prisms, and L-shaped specimens of M30 grade concrete with 50% replacement of natural sand by manufactured sand and 1% steel fibers were cast and tested at 7, 14, and 28 days to evaluate mechanical properties. The tests included compressive strength, split tensile strength, flexural strength, shear strength, and the effect of high temperatures. The study aims to compare the mechanical performance of steel fiber reinforced concrete with manufactured sand to normal concrete.
IRJET- Experimental Study on Light Weight Fiber Concrete using Pumice Stone a...IRJET Journal
This document presents an experimental study on producing lightweight fiber concrete using pumice stone as a partial replacement for coarse aggregate. Pumice stone was used to replace coarse aggregate at levels of 10-50% by weight to reduce the density of the concrete. Ground granulated blast furnace slag (GGBFS) and Recron 3s fibers were also added to improve the strength properties. Concrete cubes were tested for compressive strength, flexural strength, and split tensile strength at 7 and 28 days of curing. The results showed that replacing coarse aggregate with pumice stone produced lighter weight concrete while maintaining adequate strength properties with the addition of GGBFS and fibers.
IRJET-Study on Strength and Durability Aspects of Geopolymer ConcreteIRJET Journal
This document summarizes a study on the strength and durability properties of geopolymer concrete using fly ash and ground granulated blast furnace slag (GGBS) as binders to replace cement. Various mix designs were tested with different ratios of fly ash to GGBS. The compressive strength and split tensile strength of the geopolymer concrete cubes increased with an increasing percentage of GGBS in the mix. The highest compressive strength of 66MPa was observed for a mix with a 60% fly ash and 40% GGBS ratio. Additionally, sorptivity tests found that geopolymer concrete has lower water absorption than traditional concrete, indicating better durability. The study demonstrates that geopolymer concrete
IRJET- A Study on Effect of Partial Replacement of Cement by Alccofine in Fib...IRJET Journal
This document presents a study on the effect of partial replacement of cement with Alccofine in fiber reinforced concrete. Experiments were conducted to study the impact of adding different proportions of Alccofine 1203 and two types of fibers - polypropylene and GI fibers. Tests were performed on fresh and hardened concrete to analyze workability, compressive strength and flexural strength. The results showed that addition of Alccofine and fibers increased the workability and strength of concrete, with up to 15-20% increase in compressive and flexural strength observed with partial replacement of cement with Alccofine and addition of fibers.
IRJET- Experimental Investigation of Engineering Properties of Hollow Concret...IRJET Journal
The document investigates the engineering properties of hollow concrete blocks reinforced with basalt fibre. Basalt fibre is added to hollow concrete blocks in amounts of 0.5%, 1%, and 1.5% by volume of cement to study its effect on compressive strength. Testing shows that with increased basalt fibre content, the compressive strength and density of the hollow blocks increases while water absorption decreases, with the 1.5% fibre content blocks performing best. The aim is to reduce cracking in hollow concrete block walls through the addition of basalt fibre.
IRJET- Experimental Study on Strength Characteristics of Glass Fibre Reinforc...IRJET Journal
This study experimentally analyzed the strength characteristics of glass fiber reinforced concrete columns cured in both salt water and potable water environments. Two 600mm long concrete columns with 10% metakaolin replacement and GFRP reinforcement were cast, with one column cured in salt water and the other in potable water. Non-destructive testing methods like rebound hammer and ultrasonic pulse velocity tests were used to evaluate compressive strength over 7, 14, 28, 56, and 90 day curing periods. Results found the salt water cured column reached 58MPa compressive strength at 90 days, similar to the potable water cured column. Both achieved excellent concrete quality after curing.
AN EXPERIMENTAL INVESTIGATION 0N FLOATING CONCRETE USING LIGHTWEIGHT AGGREGATESIRJET Journal
This document summarizes an experimental investigation on producing floating concrete using lightweight aggregates. Pumice stone and scoria powder were used to partially replace normal coarse and fine aggregates. Concrete mixtures with varying replacement percentages were tested. Results showed that replacing up to 20% of aggregates increased the compressive strength of the floating concrete. Using these lightweight aggregates produced concrete with lower density, reducing the self-weight of structures. The study concluded that floating concrete made in this way can help reduce environmental impacts in construction.
EFFECT ON MECHANICAL PROPERTIES OF CONCRETE USING FINE AGGREGATE AS PARTIAL R...IRJET Journal
This document investigates the effect of using fly ash as a partial replacement for fine aggregate in concrete. Fly ash is a byproduct of coal combustion in thermal power plants and its utilization remains low. The study designs concrete mixes with fly ash replacing fine sand at percentages between 46-54%. The compressive strength, flexural strength, split tensile strength, and modulus of elasticity of the concrete mixes are then tested at 7 and 28 days. The results are analyzed to understand the impact of different fly ash replacement levels on the mechanical properties of concrete.
IRJET- An Experimental Study of Clay Brick using PolystyreneIRJET Journal
This document summarizes an experimental study on adding polystyrene to clay bricks at various percentages (5%, 10%, 15%) to improve properties. Tests were conducted on conventional clay bricks and polystyrene-clay bricks to compare weight, water absorption, and compressive strength. Results showed that polystyrene bricks had lower weight (up to 14.9% lighter), similar or lower water absorption, and comparable or higher compressive strength than conventional clay bricks. The study concluded that polystyrene bricks could be a viable alternative construction material.
This study examined the effects of different proportions of light weight expanded clay aggregates on the compressive and flexural strength of concrete. Concrete mixtures were prepared with 0%, 25%, 50%, 75%, and 100% replacement of coarse aggregates with expanded clay aggregates. The mixtures also included 10% silica fume and 1.6% polyvinyl alcohol to replace cement and water. Test results found that compressive and flexural strength decreased as the expanded clay aggregate content increased. However, the densities of the concretes were significantly lower than conventional concrete, indicating light weight concrete is suitable when self-weight needs to be reduced.
This study investigated the effects of using different percentages of expanded clay aggregates (ECA) as a replacement for normal coarse aggregates in concrete. Concrete mixtures were prepared with 0%, 25%, 50%, 75%, and 100% replacement of ECA and tested for compressive strength and flexural strength after 28 days of curing. The results showed that as the percentage of ECA increased, the density and strengths of the concrete decreased. Concretes with higher ECA content achieved lower compressive strengths but still met the requirements for structural lightweight concrete. The study concluded that this lightweight concrete can be used in places where external forces are minimal as its strength is only sufficient to support its own weight.
IRJET- Partial Replacement of Cement with Fly Ash Cenospheres in Cement C...IRJET Journal
This document summarizes research into partially replacing cement with fly ash cenospheres in concrete. Experimental tests were conducted replacing cement at levels of 0%, 4%, 8%, 12%, 16%, and 20% by mass. Compressive, split tensile, and flexural strength tests were performed on samples cured for 7 and 28 days. The results showed that replacing 8% of cement with cenospheres improved compressive strength by 11.69%, split tensile strength by 26.2%, and flexural strength by 33.73% compared to normal concrete. Replacing more than 8% of cement reduced strengths below design limits. Thus, the optimum replacement of cement with cenospheres was determined to be 8%
OPTIMUM REPLACEMENT OF COARSE AGGREGATE BY STEEL SLAG AND FINE AGGREGATE BY W...IRJET Journal
This document discusses a study that aimed to optimize the replacement of coarse aggregate with steel slag and fine aggregate with waste glass powder in concrete. The study involved replacing coarse aggregate with 0-80% steel slag and fine aggregate with 0-50% waste glass powder. The compressive strength of concrete cubes with these replacements was tested after 7 and 28 days of curing. The study also examined combining the optimal replacements of both aggregates to find the maximum combined replacement with steel slag and glass powder still providing adequate compressive strength.
Effect of Mixed Fibers (Steel and Polypropylene) On Strength Properties of Fi...IRJET Journal
This document investigates the effect of mixed fibers (steel and polypropylene) on the strength properties of fibrous self-compacting concrete. Concrete mixtures with M40 grade were designed with triple blending including 20% cement replacement with fly ash and 10% replacement with silica fume. Steel fibers with aspect ratios from 10-20 and polypropylene fibers of 12mm length were added in varying percentages. Tests were conducted on workability, compressive strength, split tensile strength and flexural strength of the fiber reinforced self-compacting concrete mixtures. The results showed that workability was achieved according to EFNARC specifications. Compressive strength was highest for mixtures with 0.1% steel fiber of 15
IRJET- Experimental Investigation of Self Compacting and Self Curing Concrete...IRJET Journal
This document presents an experimental investigation of self-compacting and self-curing concrete with different admixtures. The objective is to study the strength of concrete using a combination of self-compacting and self-curing properties. Tests were conducted on various materials used in concrete including cement, fine aggregate, coarse aggregate, water, Conplast SP430 superplasticizer, and Polyethylene Glycol 400 as a self-curing agent. Concrete mixtures were prepared with different dosages of admixtures and cured without external curing. Compressive strength tests were performed on specimen cubes to analyze the effects of self-compacting and self-curing properties on concrete strength.
Non structural Light weight concrete using combined mix of expanded polystyre...IRJET Journal
This document discusses a study on producing lightweight concrete using a combination of expanded polystyrene beads and expanded clay aggregates. The study aims to develop an optimized mix design for M20 grade lightweight concrete. Various mixes were produced by replacing coarse aggregates with different percentages of expanded clay aggregates and polystyrene beads. The mixes were then tested to evaluate properties like compressive strength, thermal conductivity, and water absorption. The results showed that using fly ash and GGBS reduced water demand and shrinkage but also reduced compressive strength by 25-50%. In general, the lightweight concrete produced had a density less than 1800kg/m3 and compressive strengths up to 36.19MPa, making it a viable material for construction
IRJET- Effect of Light Weight Aggregate and Super Absorbent Polymer as Intern...IRJET Journal
This document summarizes a study that examined the effects of internal curing agents on the properties of self-consolidating concrete (SCC). The study tested SCC mixtures with two internal curing agents: super absorbent polymer (SAP) and pre-wetted light expanded clay aggregate (LECA). The fresh and mechanical properties of SCC mixtures containing 0.2-0.6% SAP by cement weight and 10-40% coarse aggregate replacement with LECA were evaluated and compared to a control SCC mixture. Test results showed that workability of SCC decreased with increasing SAP or LECA content but still met fresh concrete standards. Compressive and split tensile strengths were generally highest with 0.5
IRJET - Study on Various Curing Methods of Concrete with Bagasse Ash as Suppl...IRJET Journal
This study investigated the effects of different curing methods on the compressive strength of concrete containing 15% sugarcane bagasse ash as a supplementary cementitious material. Three curing methods were evaluated: conventional curing by ponding, steam curing, and curing with a acrylic resin-based curing agent. Specimens were tested after 7, 14, 28, and 56 days of curing. The study found that steam curing and curing with an agent resulted in higher compressive strengths compared to conventional curing. Steam curing produced the highest strength of 50.1 MPa at 56 days. Acid and sulfate attack resistance was also improved with the use of bagasse ash compared to conventional concrete
Mechanical Properties of Cement Replaced Concrete With Rice Husk Ash and Addi...IRJET Journal
This document summarizes a study on the mechanical properties of concrete where part of the cement was replaced with rice husk ash and polypropylene fibers were added. The study found that replacing 10% of cement with rice husk ash increased the compressive and flexural strength of concrete compared to normal concrete. Replacing more than 10% of cement or adding more than 0.5% polypropylene fibers resulted in lower strengths. The optimal mix was found to be 10% cement replacement with rice husk ash, which showed improvements in strength properties.
IRJET- Literature Review of Polypropylene Fiber in M-50 Grade of Concrete in ...IRJET Journal
This document summarizes a literature review on using polypropylene fibers in M-50 grade concrete in different proportions. The review found that adding polypropylene fibers increased the concrete's shear strength, flexural strength, and abrasion resistance while reducing drying shrinkage and settlement without significantly impacting compressive strength. A testing program evaluated the compressive strength, flexural strength, and splitting tensile strength of concrete specimens made with different polypropylene fiber proportions. The optimum fiber content was found to be between 0.5-1.5% by volume.
IRJET- An Experimental Investigation on Reinforced Concrete Containing GGBFSIRJET Journal
This document presents an experimental investigation on reinforced concrete containing ground granulated blast furnace slag (GGBFS) as a cement replacement. Beams made of M40 grade concrete with 30% and 40% GGBFS replacement were tested under flexure. The study evaluated the performance of plain concrete and reinforced concrete beams with different reinforcement ratios. The concrete mixtures had water-cement ratios of 0.35 and 0.40. Beams were tested for compressive strength, flexural strength, splitting tensile strength, and durability at ages of 28 and 56 days. Test results are presented and discussed. The study aimed to assess how GGBFS affects the behavior and properties of reinforced concrete beams.
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.
IRJET-Experimental Study on Concrete Properties using Pet in Tension ZoneIRJET Journal
This document describes an experimental study on using PET fibers in the tension zone of concrete beams to improve their ductile properties. Several concrete beams were cast - a control beam without fibers and beams with PET mesh made of continuous fibers placed in the tension zone during casting. Tests were performed to analyze the flexural strength and crack width properties. The results showed that the beams with PET fiber mesh in the tension zone had slightly higher flexural strength and wider crack widths compared to the control beam without fibers. As more layers of PET mesh were added, the crack width decreased. Therefore, the PET fiber mesh was found to improve the ductile properties of concrete beams.
IRJET - Flexural Behaviour on Fiber Reinforced Bubble Deck Beam with Recycled...IRJET Journal
The document discusses a study on the flexural behavior of fiber reinforced bubble deck beams that use recycled aggregates. A bubble deck beam is a beam where the core material in the middle is replaced with hollow spheres to reduce weight. In this study, the core concrete of beams was partially replaced with high-density polyethylene balls. Recycled coarse aggregates were used to replace 100% of natural coarse aggregates. Recron 3s polyester fibers were added in dosages from 1-4% by weight of fine aggregate to improve concrete properties. Beams were cast and tested to determine flexural strength, compressive strength, modulus of rupture, and split tensile strength at various curing periods. The results were compared to a control beam without fibers
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.
Experimental Investigation on Performance of Recycled Concrete Aggregate as C...IRJET Journal
This study experimentally investigated the performance of recycled concrete aggregate as a replacement for natural coarse aggregate in concrete. Various concrete mixtures were prepared with 0-95% replacement of natural coarse aggregate with recycled concrete aggregate. The compressive strength, split tensile strength, and flexural strength of the concrete mixtures were then tested at 7 and 28 days. The results showed that concrete made with 35% replacement of natural coarse aggregate with recycled concrete aggregate achieved the maximum strengths. Therefore, recycled concrete aggregate can partially replace natural coarse aggregate in concrete without detrimental effects on strength, and 35% was identified as the optimum replacement ratio.
Similar to IRJET- Experimental Investigation on Bubble Deck Slab Confining High Density Polyethylene(HDPE) Spheres (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.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
Supermarket Management System Project Report.pdfKamal Acharya
Supermarket management is a stand-alone J2EE using Eclipse Juno program.
This project contains all the necessary required information about maintaining
the supermarket billing system.
The core idea of this project to minimize the paper work and centralize the
data. Here all the communication is taken in secure manner. That is, in this
application the information will be stored in client itself. For further security the
data base is stored in the back-end oracle and so no intruders can access it.
Generative AI Use cases applications solutions and implementation.pdfmahaffeycheryld
Generative AI solutions encompass a range of capabilities from content creation to complex problem-solving across industries. Implementing generative AI involves identifying specific business needs, developing tailored AI models using techniques like GANs and VAEs, and integrating these models into existing workflows. Data quality and continuous model refinement are crucial for effective implementation. Businesses must also consider ethical implications and ensure transparency in AI decision-making. Generative AI's implementation aims to enhance efficiency, creativity, and innovation by leveraging autonomous generation and sophisticated learning algorithms to meet diverse business challenges.
https://www.leewayhertz.com/generative-ai-use-cases-and-applications/
Design and optimization of ion propulsion dronebjmsejournal
Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Digital Twins Computer Networking Paper Presentation.pptxaryanpankaj78
A Digital Twin in computer networking is a virtual representation of a physical network, used to simulate, analyze, and optimize network performance and reliability. It leverages real-time data to enhance network management, predict issues, and improve decision-making processes.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.