This document discusses the durability properties of banana fibre reinforced fly ash concrete when exposed to acid, sulphate, chloride, and high temperatures. The results showed that partially replacing cement with fly ash improved the acid resistance, sulphate resistance, chloride resistance, and fire resistance of the concrete by reducing losses in mass and compressive strength compared to concrete without fly ash. Concrete with a 20% replacement of cement with fly ash showed the best durability performance.
IRJET- Comparative Study of Deflection of Fiber Reinforced and Non-Fiber Rein...IRJET Journal
This document presents a comparative study on the deflection of fiber reinforced concrete beams and non-fiber reinforced concrete beams. The study tested four types of beams: steel fiber reinforced concrete beams, glass fiber reinforced concrete beams, hybrid fiber reinforced concrete beams containing both steel and glass fibers, and non-fiber reinforced concrete beams. The results showed that the steel fiber reinforced concrete beams exhibited the best performance in terms of lower deflection and higher compressive strength compared to the other beam types. The document provides details on the materials, mix designs, and testing methodology used in the study.
IRJET- Effect on Compressive Strength of Concrete by Addition of Polypropylen...IRJET Journal
This study examined the effect of adding polypropylene fiber on the compressive strength of concrete mixtures with an M20 grade. Concrete cubes were made with polypropylene fiber contents ranging from 0% to 2% and tested for compressive strength at 7 and 28 days. The optimum fiber content was found to be 0.5%, resulting in a 24.05 MPa compressive strength at 28 days, a 14% increase over the plain concrete mixture. While higher fiber contents decreased workability and compressive strength, the failure mode of fiber-reinforced concrete was found to be more ductile compared to plain concrete.
IRJET- An Experimental Investigation on Properties of Concrete by the Additio...IRJET Journal
This study experimentally investigated the effects of adding polypropylene fibers on the properties of concrete. Concrete cubes and cylinders were made with polypropylene fiber contents ranging from 0% to 2% and tested at 7 and 28 days. The following conclusions were drawn:
1. Compressive and tensile strengths increased with higher polypropylene fiber content, with the maximum strengths achieved at 2% fiber content.
2. Split tensile strengths also increased with fiber content, improving by up to 22% with 2% polypropylene fibers compared to plain concrete.
3. The results indicate that polypropylene fibers can improve the mechanical properties of concrete, with strengths increasing with higher fiber dosage
Experimental Study on Concrete using Fly Ash and Coconut Coir FiberIRJET Journal
This document presents an experimental study on using fly ash and coconut coir fiber to improve the compressive and tensile strengths of concrete. Fly ash is a byproduct of thermal power plants that can replace cement in concrete up to 10-15% without reducing strength. Coconut coir fiber was added in lengths of 6mm and 12mm at 0.15-0.25% by weight of cement to enhance tensile strength. Test results showed that concretes with 10% fly ash replacement and 0.25% 12mm coir fiber exhibited the highest compressive strength of 34.7MPa and splitting tensile strength of 3.28MPa at 28 days, representing improvements over normal concrete. The study demonstrates
EFFECT OF SHEEP WOOL FIBER ON FRESH AND HARDENED PROPERTIES OF FIBER REINFORC...IAEME Publication
Fiber reinforced cementitious composites are gaining attention in construction industry because of the high strength, ductility and energy absorption capacity. Concrete production is still under consideration to improve the sustainability and environmentally safety. Therefore, natural fiber reinforced concrete is the good alternative. Although sheep wools are producing a huge amount of waste, which can be utilized as building material in concrete if properly recycled. The addition of sheep wool in concrete mix was not very new, it has been used for insulation purposes. In this research the mechanical properties of sheep wool fiber reinforced concrete (SWFRC) were investigated. Total sixty cylindrical specimens and prisms were tested in this experiment to assess the fresh and hardened properties of SWFRC. The aim study was fulfilled by the results obtained from the split tensile test and flexural test. The weak tensile strength of concrete was enhanced by the addition of high tensile sheep wool and the cracks bridging effect of smooth and elastic fibers were worked to enhance the ductility and flexural capacity of concrete. Meanwhile, the compressive strength reduction due to addition of sheep wool in concrete can be minimized by proper treatment, which must need to investigate correspondingly
IRJET- Experimental Investigation on Fibre Reinforcement Concrete by using Ma...IRJET Journal
The document presents an experimental study on fiber reinforced concrete. Various percentages of polypropylene fiber (0%, 1.25%, 1.5%, 1.75%, 2%) were added to M30 and M40 concrete mixes to study their effects on compressive, tensile, and flexural strength. Specimens were tested at 7, 14, and 28 days. Results showed that strength increased up to 1.75% fiber content. The fibers improved ductility and toughness in the post-crack region. A mix design was performed according to IS standards and concrete properties were tested through compression, splitting tensile, and flexural tests.
IRJET- An Experimental Study on Coconut Fiber Reinforced ConcreteIRJET Journal
This document summarizes a study on coconut fiber reinforced concrete. The study aimed to analyze how the strength of coconut fiber concrete varies with different fiber contents and to compare it to conventional concrete. The strengths tested included flexural, compressive, and durability at fiber contents from 1% to 5% of cement weight. Results showed the compressive strength of M20 grade concrete increased at 7 and 28 days with higher fiber contents. Including coconut fibers in concrete enhances its mechanical properties by increasing toughness, flexural strength, energy absorption, and reducing cracking. Factors like fiber content, orientation, aspect ratio, and workability affect the properties of fiber reinforced concrete.
Use of Fiber is one of the vital and emerging trends in Construction Technology. Fiber can be considered as an alternative in the use of an air entraining agent providing sufficient freeze thaw protection and moreover as a reinforcing material. Fiber reinforced materials are composite materials that typically consist of strong fibers embedded in resin matrix. It is a composite obtained by adding a single type or a blend of fibers to the conventional concrete mix. The fibers provide strength and stiffness to the composite and generally carry most of the applied loads. The matrix acts to bond and protect the fibers and to provide for transfer of stress from fiber to fiber through shear stresses. Fibers can be in form of steel fibers, glass fibers, natural fibers, synthetic fibers, etc. The mechanism by which fibres produce resistance to freezing and thawing is that fibres introduction reduces water absorption of the concrete increasing penetration resistance to de-icing salts. Reduced water absorption is a function of the fibres to reduce plastic shrinkage cracking, reducing the ability of water to permeate into the bleed in a concrete. So this research paper describes experimental studies on the use of coconut fibre as enhancement of concrete.
IRJET- Comparative Study of Deflection of Fiber Reinforced and Non-Fiber Rein...IRJET Journal
This document presents a comparative study on the deflection of fiber reinforced concrete beams and non-fiber reinforced concrete beams. The study tested four types of beams: steel fiber reinforced concrete beams, glass fiber reinforced concrete beams, hybrid fiber reinforced concrete beams containing both steel and glass fibers, and non-fiber reinforced concrete beams. The results showed that the steel fiber reinforced concrete beams exhibited the best performance in terms of lower deflection and higher compressive strength compared to the other beam types. The document provides details on the materials, mix designs, and testing methodology used in the study.
IRJET- Effect on Compressive Strength of Concrete by Addition of Polypropylen...IRJET Journal
This study examined the effect of adding polypropylene fiber on the compressive strength of concrete mixtures with an M20 grade. Concrete cubes were made with polypropylene fiber contents ranging from 0% to 2% and tested for compressive strength at 7 and 28 days. The optimum fiber content was found to be 0.5%, resulting in a 24.05 MPa compressive strength at 28 days, a 14% increase over the plain concrete mixture. While higher fiber contents decreased workability and compressive strength, the failure mode of fiber-reinforced concrete was found to be more ductile compared to plain concrete.
IRJET- An Experimental Investigation on Properties of Concrete by the Additio...IRJET Journal
This study experimentally investigated the effects of adding polypropylene fibers on the properties of concrete. Concrete cubes and cylinders were made with polypropylene fiber contents ranging from 0% to 2% and tested at 7 and 28 days. The following conclusions were drawn:
1. Compressive and tensile strengths increased with higher polypropylene fiber content, with the maximum strengths achieved at 2% fiber content.
2. Split tensile strengths also increased with fiber content, improving by up to 22% with 2% polypropylene fibers compared to plain concrete.
3. The results indicate that polypropylene fibers can improve the mechanical properties of concrete, with strengths increasing with higher fiber dosage
Experimental Study on Concrete using Fly Ash and Coconut Coir FiberIRJET Journal
This document presents an experimental study on using fly ash and coconut coir fiber to improve the compressive and tensile strengths of concrete. Fly ash is a byproduct of thermal power plants that can replace cement in concrete up to 10-15% without reducing strength. Coconut coir fiber was added in lengths of 6mm and 12mm at 0.15-0.25% by weight of cement to enhance tensile strength. Test results showed that concretes with 10% fly ash replacement and 0.25% 12mm coir fiber exhibited the highest compressive strength of 34.7MPa and splitting tensile strength of 3.28MPa at 28 days, representing improvements over normal concrete. The study demonstrates
EFFECT OF SHEEP WOOL FIBER ON FRESH AND HARDENED PROPERTIES OF FIBER REINFORC...IAEME Publication
Fiber reinforced cementitious composites are gaining attention in construction industry because of the high strength, ductility and energy absorption capacity. Concrete production is still under consideration to improve the sustainability and environmentally safety. Therefore, natural fiber reinforced concrete is the good alternative. Although sheep wools are producing a huge amount of waste, which can be utilized as building material in concrete if properly recycled. The addition of sheep wool in concrete mix was not very new, it has been used for insulation purposes. In this research the mechanical properties of sheep wool fiber reinforced concrete (SWFRC) were investigated. Total sixty cylindrical specimens and prisms were tested in this experiment to assess the fresh and hardened properties of SWFRC. The aim study was fulfilled by the results obtained from the split tensile test and flexural test. The weak tensile strength of concrete was enhanced by the addition of high tensile sheep wool and the cracks bridging effect of smooth and elastic fibers were worked to enhance the ductility and flexural capacity of concrete. Meanwhile, the compressive strength reduction due to addition of sheep wool in concrete can be minimized by proper treatment, which must need to investigate correspondingly
IRJET- Experimental Investigation on Fibre Reinforcement Concrete by using Ma...IRJET Journal
The document presents an experimental study on fiber reinforced concrete. Various percentages of polypropylene fiber (0%, 1.25%, 1.5%, 1.75%, 2%) were added to M30 and M40 concrete mixes to study their effects on compressive, tensile, and flexural strength. Specimens were tested at 7, 14, and 28 days. Results showed that strength increased up to 1.75% fiber content. The fibers improved ductility and toughness in the post-crack region. A mix design was performed according to IS standards and concrete properties were tested through compression, splitting tensile, and flexural tests.
IRJET- An Experimental Study on Coconut Fiber Reinforced ConcreteIRJET Journal
This document summarizes a study on coconut fiber reinforced concrete. The study aimed to analyze how the strength of coconut fiber concrete varies with different fiber contents and to compare it to conventional concrete. The strengths tested included flexural, compressive, and durability at fiber contents from 1% to 5% of cement weight. Results showed the compressive strength of M20 grade concrete increased at 7 and 28 days with higher fiber contents. Including coconut fibers in concrete enhances its mechanical properties by increasing toughness, flexural strength, energy absorption, and reducing cracking. Factors like fiber content, orientation, aspect ratio, and workability affect the properties of fiber reinforced concrete.
Use of Fiber is one of the vital and emerging trends in Construction Technology. Fiber can be considered as an alternative in the use of an air entraining agent providing sufficient freeze thaw protection and moreover as a reinforcing material. Fiber reinforced materials are composite materials that typically consist of strong fibers embedded in resin matrix. It is a composite obtained by adding a single type or a blend of fibers to the conventional concrete mix. The fibers provide strength and stiffness to the composite and generally carry most of the applied loads. The matrix acts to bond and protect the fibers and to provide for transfer of stress from fiber to fiber through shear stresses. Fibers can be in form of steel fibers, glass fibers, natural fibers, synthetic fibers, etc. The mechanism by which fibres produce resistance to freezing and thawing is that fibres introduction reduces water absorption of the concrete increasing penetration resistance to de-icing salts. Reduced water absorption is a function of the fibres to reduce plastic shrinkage cracking, reducing the ability of water to permeate into the bleed in a concrete. So this research paper describes experimental studies on the use of coconut fibre as enhancement of concrete.
IRJET- Experimental Study On Polypropylene Fiber ReinforcedconcreteIRJET Journal
This document reports on an experimental study of polypropylene fiber reinforced concrete. Various volume fractions of polypropylene fibers (0%, 0.2%, 0.3%, 0.5%) were added to concrete mixtures to study their effects on properties such as workability, compressive strength, tensile strength, and flexural strength. The addition of fibers decreased workability but increased tensile and flexural strength, with 0.5% fiber volume achieving the highest strengths. Silica fume was also used as a cement replacement at 8% by weight, and its presence further improved mechanical properties. Test results showed that polypropylene fibers can improve the durability and mechanical performance of concrete.
IRJET- Mechanical Properties of Concrete on Addition of Sisal FiberIRJET Journal
This document discusses research into using sisal fibers as reinforcement in concrete. Sisal fiber is a promising reinforcement due to its low cost, availability, and sustainability. The document reviews properties of sisal fiber and previous research investigating how sisal fiber affects the mechanical properties and durability of concrete when used as reinforcement. Specifically, the research presented found that adding up to 1% sisal fiber increased the tensile, compressive, and flexural strength of concrete compared to non-fiber concrete, but amounts over 1% decreased properties due to reduced density. Sisal fiber also improved the concrete's impact resistance and bond strength.
The document discusses tribological properties of various glass fiber reinforced composites. It discusses that glass fiber reinforced composites have high strength, corrosion resistance, and are dimensionally stable. It then classifies different types of glass fibers used in composites and discusses mechanical and tribological properties of various composites reinforced with materials like carbon, Kevlar, alumina, zirconia, bamboo, graphene and filled with lubricants like PTFE, MoS2. Applications mentioned include aerospace, construction, furniture, marine, automotive, medical industries.
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.
fabrication and testing of palm fiber reinforced composite magarajothi sam
Composite materials are a mixture of two or more materials that provide improved properties over the individual components. They consist of a continuous matrix phase reinforced with a discontinuous phase. Natural fiber composites are gaining popularity due to their low cost, low density, high strength, and biodegradability. This document discusses different types of composites, fibers, and resins used in composites. It provides examples of various natural fibers like jute, flax, sisal and their properties. Different resins discussed include polyester, vinyl ester, epoxy and phenolic. The document also lists several applications of composites in industries like construction, transportation, marine etc.
IRJET- Improving Structure Integrity with Fibre Reinforced ConcreteIRJET Journal
The document discusses fibre reinforced concrete (FRC), which involves adding small fibres to concrete to improve its properties. Steel fibre reinforced concrete is the most common type of FRC. It improves tensile strength, flexural strength, impact resistance, ductility, and crack control compared to normal concrete. Test results showed compressive strength increased up to 25% and flexural strength increased over 100% with the addition of fibres like steel. While fibres improve properties, they are not a replacement for steel reinforcement in structural applications. FRC is useful as a supplementary material to improve performance.
This document summarizes a study on improving the strength of concrete by using industrial and agricultural waste such as rice husk ash (RHA) and coconut fibers (coir). RHA is a highly pozzolanic material obtained by controlled burning of rice husk. Coir has excellent mechanical and physical properties. The study investigated partially replacing cement with RHA and adding coir fibers to concrete mixtures. Testing showed concrete strength initially decreased but matched control mixtures at 28 days and increased at 90 days with RHA replacement up to 12.5%. Adding up to 3% coir fibers to 12.5% RHA concrete further improved compressive strength. Flexural strength peaked at 17.5-20% RHA with co
Study of Fiber Reinforced Polymer Materials in Reinforced Concrete Structures...Girish Singh
Around the world we are having several upcoming projects near the coast line so the study is needed to understand the effect on cost when we use FRP in the structure because FRP is a costly material compare to steel which may or may not increase the structure overall cost.
It will may or may not increase the structure cost because if we use FRP in a structure then we can avoid the problem that we face in a structure caused due to corrosion which reduce strength of the structure, foundation loosing plaster from the surface of the reinforced section due to expansion caused due to rusting as well as in building envelopes.
The objectives of this seminar report are to study about FRP Manufacturing and its properties, study about the various applications of FRP, design and analyze a FRP member, Finite element analysis of a simple beam using FRP as a reinforcement, role of FRP in the sustainable world, to find out the cost benefit of the elements used in a corrosive environment structure which can be replaced by the FRP.
This study will cover all the forms of FRP that can be used in a building and give a brief about FRP rebars its properties, design, analysis, uses and the effect on cost of a build during construction as well as the cost analysis of the structure.
This study will give an idea on the advantage of FRP over steel when we are using FRP in a corrosive environment like coast line and it will give an initial idea to the designer about the advantage and disadvantage of FRP over steel.
In the final part of this seminar report analysis results are used to give a base that FRP can sustain in structure as FRP reinforced bar and an example of a LCC is also used to give a satisfactory conclusion and on the final page the summery of the seminar is present.
Plastics are polymers made from both natural and synthetic materials. There are two main categories of plastics based on their behavior with heat: thermoplastics, which soften when heated and harden when cooled, and thermosets, which permanently set during the heating process. Common plastics include acrylics, used for windows and skylights, and PVC, known for its corrosion resistance. Fiberglass reinforced plastics and glassfiber reinforced concrete are composite materials used in construction for their strength, durability, and lightweight properties.
This document reviews the use of natural fibers as reinforcement in sustainable construction materials. It discusses how natural fibers can be used as filler in masonry composites, as reinforcement to improve mechanical properties, and to reduce thermal conductivity. The document examines previous research on using fibers like sawdust, coconut fibers, and others as partial replacements for cement, sand, or aggregate in building materials. While natural fibers provide benefits like low cost and renewability, their use in construction materials requires treatments and further optimization of properties. Overall, the document evaluates the potential for natural fibers to provide sustainable and affordable construction material alternatives.
A Review Study of Strength Properties of Hybrid Fiber Reinforced Concrete usi...IRJET Journal
This document reviews the use of hybrid fibers, specifically sisal and polypropylene fibers, to reinforce concrete. It begins with an introduction to different fiber types used in concrete, including sisal and polypropylene fibers. It then reviews several studies that have examined the effects of these fiber types on the mechanical properties of concrete, finding that both sisal and polypropylene fibers can increase properties like flexural strength, compressive strength, and impact resistance when added to concrete in optimal amounts. The document concludes by reviewing the properties and effects of sisal fiber-reinforced concrete and polypropylene fiber-reinforced concrete specifically.
Study on properties of sisal fiber reinforced concrete with different mix pro...eSAT Journals
Abstract
The present research was designed to check the workability and strength properties of sisal fiber reinforced concrete with different mix proportions and different percentage of fiber addition. The materials were chosen to improve the various strength properties of the structure to obtain sustainability and better quality structure. Short discrete vegetable fiber (sisal) was examined for its suitability for incorporation in cement concrete. The physical property of this fiber has shown no deterioration in a concrete medium. Fibers were brushed, lined up and cut to obtain 4cm length. Degree of workability of concrete mix with 0.2% super plasticizer and water cement ratio 0.45 had good workability with slump value 53mm and compaction factor 0.88, which is effective, was obtained. Materials were hand mixed with 0.5%, 1% and 1.5% addition of fiber in M20 and M25 mix design and casted in cubes and cylinders. The obtained specimens were subjected to tests aimed to check the compressive, tensile and flexural strength. An increase in compressive strength by 50.53% and tensile strength by 3.416% was observed for 1.5% addition of fiber in M20 mix design respectively. An increase in compressive strength by 52.51% and tensile strength by 3.904% was observed for 1.5% addition of fiber in M25 mix design respectively.
Keywords: Sisal fiber, workability, sustainability, mix design, compressive, tensile, flexural.
Report on polymer use in civil engineerinngATUL SHUKLA
The document summarizes the use of polymers in civil engineering applications. Some key points:
- Polymers like PVC, HDPE, and fiber-reinforced polymers are widely used in construction for applications like pipes, windows, insulation, reinforcement, etc. due to properties like strength, durability, and light weight.
- PVC is the most commonly used polymer in construction, making up around 60% of building materials. FRPs provide a non-corrosive reinforcement solution for concrete structures.
- Polymers are also used in road construction, with materials like polymer concrete and TerraDura soil stabilizers that can strengthen soils and aggregates to form durable, flexible roads.
The document discusses a study on the effect of stacking sequence on the tribological properties of woven jute-glass fiber reinforced epoxy composites. It summarizes previous literature on natural fiber composites and erosion behavior. The objective of the current work is to study the mechanical properties and erosion wear behavior of hybrid composites with different stacking sequences of jute and glass fibers. Experimental aspects discussed include the materials used, specimen preparation method, and evaluation of erosion rates under varying test parameters.
IRJET- Experimental Investigation of Sand Replacement by Foundry Sand and...IRJET Journal
This document presents an experimental investigation on replacing sand with foundry sand and adding human hair fiber to concrete. Several concrete mixtures were tested with 0-30% replacement of fine aggregate with foundry sand and 0-7.5% addition of human hair fiber by weight of cement. The compressive strength and split tensile strength of concrete cubes and cylinders were tested at 7 and 28 days. The results showed that concrete with 5% hair fiber addition and 30% foundry sand replacement achieved improved strengths. Thus, using these waste materials provided an economical and environmentally friendly way to produce concrete while improving its properties.
Prepared a Glass Fiber Reinforced Plastic board and determined the optimal drilling conditions that would cause the least delamination using Design of Experiments.
Comparative study of polymer fibre reinforced concrete with conventional conc...eSAT Journals
Abstract Road transportation is undoubtedly the lifeline of the nation and its development is a crucial concern. The traditional bituminous pavements and their needs for continuous maintenance and rehabilitation operations points towards the scope for cement concrete pavements. There are several advantages of cement concrete pavements over bituminous pavements. This paper emphasizes on POLYMER FIBRE REINFORCED CONCRETE PAVEMENTS, which is a recent advancement in the field of reinforced concrete pavement design. A comparative study of these pavements with the conventional concrete pavements has been made using Polypropylene fiber waste as fiber reinforcement. Keywords: Polymer fibre concrete pavement, Polypropylene fiber waste as fiber reinforcement
IRJET- Experimental Investigation on Properties of Light Weight Foamed Concre...IRJET Journal
This document presents an experimental investigation on the properties of light weight foamed concrete with natural fibers. Light weight foamed concrete is made with a target density of 1000 kg/m3 using cement, fly ash, water and foam agent. Different mixes were prepared with varying percentages of kenaf fibers (0.35-0.55%) and a combination of kenaf and coir fibers, individually added to the mix. Testing showed that mixes with 0.45% kenaf fibers and a combination of kenaf-coir fibers achieved the highest compressive, split tensile, and flexural strengths. The inclusion of natural fibers improved the strength properties of light weight foamed concrete and reduced its weight, making
IRJET- Study on Hybrid Glass/Carbon Fiber Reinforced Vinyl Ester Polymer Comp...IRJET Journal
This study examines hybrid glass/carbon fiber reinforced vinyl ester polymer composites. Glass fiber and carbon fibers are chosen as reinforcements for their properties, while vinyl ester resin is selected as the polymer matrix. The document provides background on these materials, including that glass fiber is low-cost and isotropic, carbon fiber is very stiff with low density, and vinyl ester resin has high strength and corrosion resistance. Previous research found that hybrid composites can achieve optimized properties by combining different fiber types and that fiber parameters like length, orientation, and diameter influence mechanical characteristics. The goal of this study is to investigate these hybrid composites and how fiber properties affect their mechanics.
Effects of coconut fibers on the properties of concreteeSAT Journals
Abstract
The materials chosen for structural up gradation should not pollute the environment and endanger bioreserves. They should be accessible to the ordinary people and be low in monetary cost. Coconut fiber is an abundant, versatile, renewable, cheap, lignocellulosic fiber and more resistant to thermal conductivity. The aim of investigation is to study the possibilities to use the coconut fiber in addition to the other constituents of concrete and to study the strength properties. A literature survey was carried out, which indicates that the detailed investigation of coconut fiber concrete is necessary. In the present study the deformation properties of concrete beams with fibers under static loading condition and the behavior of structural components in terms of compressive strength for plain concrete(PC) and coconut fiber reinforced concrete(CFRC) has been studied.
The testing of various material constituents of concrete was carried out according to the Indian Standard specifications. To identify the effects on workability and mechanical strength properties due to the addition of these coconut fibres, workability tests such slump, vee – bee, compaction factor test, Flow table tests, and the mechanical strength tests on standard specimens such as compressive strength, split tensile strength, modulus of rupture were conducted on the different aspect ratio. The standard cubes, cylinders and beams for conventional concrete and coconut fiber reinforced concrete were prepared and tested under compression testing machine and flexure testing machine respectively. The suitability of CFRC as a structural material is studied, in comparison with conventional concrete.
Keywords: CFRC1, Concrete properties2, Coir3.
EFFECTS OF FLY ASH ON THE PROPERTIES OF COCONUT FIBRE REINFORCED CONCRETEIRJET Journal
This document discusses a study that investigated the effects of partially replacing ordinary Portland cement with fly ash on the properties of coconut fibre reinforced concrete. Concrete mixes were produced with 0%, 10%, 20%, and 30% replacement of cement with fly ash. Coconut fibres were added at 0.5% of the fine aggregate weight. Tests were performed to determine the workability, density, compressive strength, splitting tensile strength, flexural strength, alkalinity, and water absorption of the concrete mixes after curing periods of 7, 28, and 56 days. The results showed that fly ash improved workability and reduced alkalinity and water absorption. Mixes with 10% cement replacement achieved the highest strengths at all ages.
Module on fibre reinforced and foam concreteErankajKumar
This document discusses fibre reinforced concrete and foam concrete. It defines fibre reinforced concrete as a composite material consisting of fibres mixed into cement, mortar or concrete to increase structural integrity. Various fibre types are described, including steel, polypropylene, glass, polyester, carbon and natural fibres. Applications of fibre reinforced concrete include pavements, tunnels, dams and bridges. Foam concrete is defined as a lightweight concrete containing cement, water and a foaming agent with no large aggregates. It has advantages like lightweight, thermal insulation, self-leveling properties and fire resistance. Foam concrete is used in construction of walls, floors, pipes and as backfill material.
IRJET- Experimental Study On Polypropylene Fiber ReinforcedconcreteIRJET Journal
This document reports on an experimental study of polypropylene fiber reinforced concrete. Various volume fractions of polypropylene fibers (0%, 0.2%, 0.3%, 0.5%) were added to concrete mixtures to study their effects on properties such as workability, compressive strength, tensile strength, and flexural strength. The addition of fibers decreased workability but increased tensile and flexural strength, with 0.5% fiber volume achieving the highest strengths. Silica fume was also used as a cement replacement at 8% by weight, and its presence further improved mechanical properties. Test results showed that polypropylene fibers can improve the durability and mechanical performance of concrete.
IRJET- Mechanical Properties of Concrete on Addition of Sisal FiberIRJET Journal
This document discusses research into using sisal fibers as reinforcement in concrete. Sisal fiber is a promising reinforcement due to its low cost, availability, and sustainability. The document reviews properties of sisal fiber and previous research investigating how sisal fiber affects the mechanical properties and durability of concrete when used as reinforcement. Specifically, the research presented found that adding up to 1% sisal fiber increased the tensile, compressive, and flexural strength of concrete compared to non-fiber concrete, but amounts over 1% decreased properties due to reduced density. Sisal fiber also improved the concrete's impact resistance and bond strength.
The document discusses tribological properties of various glass fiber reinforced composites. It discusses that glass fiber reinforced composites have high strength, corrosion resistance, and are dimensionally stable. It then classifies different types of glass fibers used in composites and discusses mechanical and tribological properties of various composites reinforced with materials like carbon, Kevlar, alumina, zirconia, bamboo, graphene and filled with lubricants like PTFE, MoS2. Applications mentioned include aerospace, construction, furniture, marine, automotive, medical industries.
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.
fabrication and testing of palm fiber reinforced composite magarajothi sam
Composite materials are a mixture of two or more materials that provide improved properties over the individual components. They consist of a continuous matrix phase reinforced with a discontinuous phase. Natural fiber composites are gaining popularity due to their low cost, low density, high strength, and biodegradability. This document discusses different types of composites, fibers, and resins used in composites. It provides examples of various natural fibers like jute, flax, sisal and their properties. Different resins discussed include polyester, vinyl ester, epoxy and phenolic. The document also lists several applications of composites in industries like construction, transportation, marine etc.
IRJET- Improving Structure Integrity with Fibre Reinforced ConcreteIRJET Journal
The document discusses fibre reinforced concrete (FRC), which involves adding small fibres to concrete to improve its properties. Steel fibre reinforced concrete is the most common type of FRC. It improves tensile strength, flexural strength, impact resistance, ductility, and crack control compared to normal concrete. Test results showed compressive strength increased up to 25% and flexural strength increased over 100% with the addition of fibres like steel. While fibres improve properties, they are not a replacement for steel reinforcement in structural applications. FRC is useful as a supplementary material to improve performance.
This document summarizes a study on improving the strength of concrete by using industrial and agricultural waste such as rice husk ash (RHA) and coconut fibers (coir). RHA is a highly pozzolanic material obtained by controlled burning of rice husk. Coir has excellent mechanical and physical properties. The study investigated partially replacing cement with RHA and adding coir fibers to concrete mixtures. Testing showed concrete strength initially decreased but matched control mixtures at 28 days and increased at 90 days with RHA replacement up to 12.5%. Adding up to 3% coir fibers to 12.5% RHA concrete further improved compressive strength. Flexural strength peaked at 17.5-20% RHA with co
Study of Fiber Reinforced Polymer Materials in Reinforced Concrete Structures...Girish Singh
Around the world we are having several upcoming projects near the coast line so the study is needed to understand the effect on cost when we use FRP in the structure because FRP is a costly material compare to steel which may or may not increase the structure overall cost.
It will may or may not increase the structure cost because if we use FRP in a structure then we can avoid the problem that we face in a structure caused due to corrosion which reduce strength of the structure, foundation loosing plaster from the surface of the reinforced section due to expansion caused due to rusting as well as in building envelopes.
The objectives of this seminar report are to study about FRP Manufacturing and its properties, study about the various applications of FRP, design and analyze a FRP member, Finite element analysis of a simple beam using FRP as a reinforcement, role of FRP in the sustainable world, to find out the cost benefit of the elements used in a corrosive environment structure which can be replaced by the FRP.
This study will cover all the forms of FRP that can be used in a building and give a brief about FRP rebars its properties, design, analysis, uses and the effect on cost of a build during construction as well as the cost analysis of the structure.
This study will give an idea on the advantage of FRP over steel when we are using FRP in a corrosive environment like coast line and it will give an initial idea to the designer about the advantage and disadvantage of FRP over steel.
In the final part of this seminar report analysis results are used to give a base that FRP can sustain in structure as FRP reinforced bar and an example of a LCC is also used to give a satisfactory conclusion and on the final page the summery of the seminar is present.
Plastics are polymers made from both natural and synthetic materials. There are two main categories of plastics based on their behavior with heat: thermoplastics, which soften when heated and harden when cooled, and thermosets, which permanently set during the heating process. Common plastics include acrylics, used for windows and skylights, and PVC, known for its corrosion resistance. Fiberglass reinforced plastics and glassfiber reinforced concrete are composite materials used in construction for their strength, durability, and lightweight properties.
This document reviews the use of natural fibers as reinforcement in sustainable construction materials. It discusses how natural fibers can be used as filler in masonry composites, as reinforcement to improve mechanical properties, and to reduce thermal conductivity. The document examines previous research on using fibers like sawdust, coconut fibers, and others as partial replacements for cement, sand, or aggregate in building materials. While natural fibers provide benefits like low cost and renewability, their use in construction materials requires treatments and further optimization of properties. Overall, the document evaluates the potential for natural fibers to provide sustainable and affordable construction material alternatives.
A Review Study of Strength Properties of Hybrid Fiber Reinforced Concrete usi...IRJET Journal
This document reviews the use of hybrid fibers, specifically sisal and polypropylene fibers, to reinforce concrete. It begins with an introduction to different fiber types used in concrete, including sisal and polypropylene fibers. It then reviews several studies that have examined the effects of these fiber types on the mechanical properties of concrete, finding that both sisal and polypropylene fibers can increase properties like flexural strength, compressive strength, and impact resistance when added to concrete in optimal amounts. The document concludes by reviewing the properties and effects of sisal fiber-reinforced concrete and polypropylene fiber-reinforced concrete specifically.
Study on properties of sisal fiber reinforced concrete with different mix pro...eSAT Journals
Abstract
The present research was designed to check the workability and strength properties of sisal fiber reinforced concrete with different mix proportions and different percentage of fiber addition. The materials were chosen to improve the various strength properties of the structure to obtain sustainability and better quality structure. Short discrete vegetable fiber (sisal) was examined for its suitability for incorporation in cement concrete. The physical property of this fiber has shown no deterioration in a concrete medium. Fibers were brushed, lined up and cut to obtain 4cm length. Degree of workability of concrete mix with 0.2% super plasticizer and water cement ratio 0.45 had good workability with slump value 53mm and compaction factor 0.88, which is effective, was obtained. Materials were hand mixed with 0.5%, 1% and 1.5% addition of fiber in M20 and M25 mix design and casted in cubes and cylinders. The obtained specimens were subjected to tests aimed to check the compressive, tensile and flexural strength. An increase in compressive strength by 50.53% and tensile strength by 3.416% was observed for 1.5% addition of fiber in M20 mix design respectively. An increase in compressive strength by 52.51% and tensile strength by 3.904% was observed for 1.5% addition of fiber in M25 mix design respectively.
Keywords: Sisal fiber, workability, sustainability, mix design, compressive, tensile, flexural.
Report on polymer use in civil engineerinngATUL SHUKLA
The document summarizes the use of polymers in civil engineering applications. Some key points:
- Polymers like PVC, HDPE, and fiber-reinforced polymers are widely used in construction for applications like pipes, windows, insulation, reinforcement, etc. due to properties like strength, durability, and light weight.
- PVC is the most commonly used polymer in construction, making up around 60% of building materials. FRPs provide a non-corrosive reinforcement solution for concrete structures.
- Polymers are also used in road construction, with materials like polymer concrete and TerraDura soil stabilizers that can strengthen soils and aggregates to form durable, flexible roads.
The document discusses a study on the effect of stacking sequence on the tribological properties of woven jute-glass fiber reinforced epoxy composites. It summarizes previous literature on natural fiber composites and erosion behavior. The objective of the current work is to study the mechanical properties and erosion wear behavior of hybrid composites with different stacking sequences of jute and glass fibers. Experimental aspects discussed include the materials used, specimen preparation method, and evaluation of erosion rates under varying test parameters.
IRJET- Experimental Investigation of Sand Replacement by Foundry Sand and...IRJET Journal
This document presents an experimental investigation on replacing sand with foundry sand and adding human hair fiber to concrete. Several concrete mixtures were tested with 0-30% replacement of fine aggregate with foundry sand and 0-7.5% addition of human hair fiber by weight of cement. The compressive strength and split tensile strength of concrete cubes and cylinders were tested at 7 and 28 days. The results showed that concrete with 5% hair fiber addition and 30% foundry sand replacement achieved improved strengths. Thus, using these waste materials provided an economical and environmentally friendly way to produce concrete while improving its properties.
Prepared a Glass Fiber Reinforced Plastic board and determined the optimal drilling conditions that would cause the least delamination using Design of Experiments.
Comparative study of polymer fibre reinforced concrete with conventional conc...eSAT Journals
Abstract Road transportation is undoubtedly the lifeline of the nation and its development is a crucial concern. The traditional bituminous pavements and their needs for continuous maintenance and rehabilitation operations points towards the scope for cement concrete pavements. There are several advantages of cement concrete pavements over bituminous pavements. This paper emphasizes on POLYMER FIBRE REINFORCED CONCRETE PAVEMENTS, which is a recent advancement in the field of reinforced concrete pavement design. A comparative study of these pavements with the conventional concrete pavements has been made using Polypropylene fiber waste as fiber reinforcement. Keywords: Polymer fibre concrete pavement, Polypropylene fiber waste as fiber reinforcement
IRJET- Experimental Investigation on Properties of Light Weight Foamed Concre...IRJET Journal
This document presents an experimental investigation on the properties of light weight foamed concrete with natural fibers. Light weight foamed concrete is made with a target density of 1000 kg/m3 using cement, fly ash, water and foam agent. Different mixes were prepared with varying percentages of kenaf fibers (0.35-0.55%) and a combination of kenaf and coir fibers, individually added to the mix. Testing showed that mixes with 0.45% kenaf fibers and a combination of kenaf-coir fibers achieved the highest compressive, split tensile, and flexural strengths. The inclusion of natural fibers improved the strength properties of light weight foamed concrete and reduced its weight, making
IRJET- Study on Hybrid Glass/Carbon Fiber Reinforced Vinyl Ester Polymer Comp...IRJET Journal
This study examines hybrid glass/carbon fiber reinforced vinyl ester polymer composites. Glass fiber and carbon fibers are chosen as reinforcements for their properties, while vinyl ester resin is selected as the polymer matrix. The document provides background on these materials, including that glass fiber is low-cost and isotropic, carbon fiber is very stiff with low density, and vinyl ester resin has high strength and corrosion resistance. Previous research found that hybrid composites can achieve optimized properties by combining different fiber types and that fiber parameters like length, orientation, and diameter influence mechanical characteristics. The goal of this study is to investigate these hybrid composites and how fiber properties affect their mechanics.
Effects of coconut fibers on the properties of concreteeSAT Journals
Abstract
The materials chosen for structural up gradation should not pollute the environment and endanger bioreserves. They should be accessible to the ordinary people and be low in monetary cost. Coconut fiber is an abundant, versatile, renewable, cheap, lignocellulosic fiber and more resistant to thermal conductivity. The aim of investigation is to study the possibilities to use the coconut fiber in addition to the other constituents of concrete and to study the strength properties. A literature survey was carried out, which indicates that the detailed investigation of coconut fiber concrete is necessary. In the present study the deformation properties of concrete beams with fibers under static loading condition and the behavior of structural components in terms of compressive strength for plain concrete(PC) and coconut fiber reinforced concrete(CFRC) has been studied.
The testing of various material constituents of concrete was carried out according to the Indian Standard specifications. To identify the effects on workability and mechanical strength properties due to the addition of these coconut fibres, workability tests such slump, vee – bee, compaction factor test, Flow table tests, and the mechanical strength tests on standard specimens such as compressive strength, split tensile strength, modulus of rupture were conducted on the different aspect ratio. The standard cubes, cylinders and beams for conventional concrete and coconut fiber reinforced concrete were prepared and tested under compression testing machine and flexure testing machine respectively. The suitability of CFRC as a structural material is studied, in comparison with conventional concrete.
Keywords: CFRC1, Concrete properties2, Coir3.
EFFECTS OF FLY ASH ON THE PROPERTIES OF COCONUT FIBRE REINFORCED CONCRETEIRJET Journal
This document discusses a study that investigated the effects of partially replacing ordinary Portland cement with fly ash on the properties of coconut fibre reinforced concrete. Concrete mixes were produced with 0%, 10%, 20%, and 30% replacement of cement with fly ash. Coconut fibres were added at 0.5% of the fine aggregate weight. Tests were performed to determine the workability, density, compressive strength, splitting tensile strength, flexural strength, alkalinity, and water absorption of the concrete mixes after curing periods of 7, 28, and 56 days. The results showed that fly ash improved workability and reduced alkalinity and water absorption. Mixes with 10% cement replacement achieved the highest strengths at all ages.
Module on fibre reinforced and foam concreteErankajKumar
This document discusses fibre reinforced concrete and foam concrete. It defines fibre reinforced concrete as a composite material consisting of fibres mixed into cement, mortar or concrete to increase structural integrity. Various fibre types are described, including steel, polypropylene, glass, polyester, carbon and natural fibres. Applications of fibre reinforced concrete include pavements, tunnels, dams and bridges. Foam concrete is defined as a lightweight concrete containing cement, water and a foaming agent with no large aggregates. It has advantages like lightweight, thermal insulation, self-leveling properties and fire resistance. Foam concrete is used in construction of walls, floors, pipes and as backfill material.
IRJET- Experimental Investigation of Glass Fiber Reinforced Concrete with Par...IRJET Journal
This document investigates the use of dolomite powder as a partial replacement for cement in glass fiber reinforced concrete. Glass fibers are added at 0.5% volume fraction to improve the concrete's tensile strength and ductility. Dolomite powder is used to replace cement at varying percentages in order to reduce the cost and environmental impact of concrete production. The document reviews previous literature on the use of dolomite powder and glass fibers in concrete. It then outlines the properties of the cement, fine aggregate, coarse aggregate, dolomite powder, and glass fibers used in the experimental investigation. The investigation aims to determine the compressive strength of concrete mixtures with dolomite cement replacement and a constant glass fiber addition.
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
EXPERIMENTAL INVESTIGATION OF HIGH PERFORMANCE CONCRETE BY USING POLYOLEFIN M...IRJET Journal
This document presents an experimental investigation on the use of polyolefin microfilament fibers to produce high-performance concrete. M50 grade concrete was tested with different levels (0.1%, 0.3%, 0.5%) of polyolefin fiber addition. The concrete mixtures contained silica fume and metakaolin as mineral admixtures and superplasticizer as a chemical admixture. Slump cone and compressive strength tests were conducted to evaluate the workability and strength of the fiber-reinforced concrete. The results showed that the addition of polyolefin fibers improved the slump and compressive strength of the concrete.
IRJET- Utilization of Rice Husk Ash and Foundry Sand as Partial Replacement M...IRJET Journal
This document summarizes research on utilizing rice husk ash and foundry sand as partial replacements in fiber reinforced concrete. It first provides background on fiber reinforced concrete and how fibers improve tensile strength and crack resistance. It then discusses the large worldwide usage of sand in concrete and need to replace it due to supply constraints, as well as the environmental impacts of cement production. Rice husk ash and foundry sand are identified as potential replacement materials. The literature review summarizes previous research showing rice husk ash and foundry sand can improve concrete strength and foundry sand is a viable sand replacement of up to 40-60%. The materials testing confirmed the replacements meet quality and strength requirements.
Enrichment of the Strength Characteristics of Fibre Reinforced Concrete by us...IRJET Journal
This document discusses using industrial waste polypropylene fiber to enhance the strength characteristics of fiber reinforced concrete. It prepared fiber reinforced concrete specimens with varying percentages of industrial waste polypropylene fiber (0%, 0.25%, 0.5%, 0.75% and 1.00%) and tested their density, compressive strength, and split tensile strength after 7 and 28 days of curing. The results showed that adding 0.5% polypropylene fiber increased the compressive strength by around 10% and split tensile strength by around 17%, providing the maximum strength gains. Using waste polypropylene fiber in concrete helps improve strength properties while providing an environmentally-friendly use for industrial waste.
IRJET- An Investigation on the Durability Properties of Textile Fibre Reinfor...IRJET Journal
This document investigates the durability properties of textile fibre reinforced concrete under sulphate attack. Different types of textile fibres - polypropylene, polyester, and nylon - are added to concrete at 0.5% by volume. Specimens are cured for 28 days and then immersed in magnesium sulphate solution for 90 days. The document provides background on fibre reinforced concrete and its advantages over plain concrete. It describes the materials and methodology used, including details on the cement, aggregates, water, and properties of the different textile fibres added to the concrete mix. The main objective is to study the behaviour of textile fibre reinforced concrete under sulphate attack.
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.
PARTIAL REPLACEMENT OF CEMENT WITH WOOD ASH AND ADDITION OF EXPANDED POLYSTYR...IRJET Journal
This document summarizes a study on producing lightweight concrete by partially replacing cement with wood ash and adding expanded polystyrene beads and coconut fibers. The main goal is to determine the workability, compressive strength, tensile strength, and flexural strength of the lightweight concrete. Different mixtures will be tested with varying replacements of wood ash and additions of beads and fibers. Based on previous research, the strengths of the wood ash, bead, and fiber concrete will be compared to conventional concrete. Testing will include compressive strength, split tensile strength, and flexural strength tests. Preliminary results found that workability was acceptable after adding beads and fibers. Strength parameters like compression, tension, and flexure increased up to a 12
IRJET- A Review on Paper Crete: A Sustainable Building MaterialIRJET Journal
This document provides a review of papercrete, a sustainable building material made from shredded paper, Portland cement, and soil. It discusses the advantages of papercrete such as its low carbon footprint and use of recycled materials. Various mix proportions of papercrete are possible using different amounts of constituents. The document also examines the properties of papercrete like its strength, durability, density, and water absorption. Papercrete bricks are relatively light and flexible, making them suitable for earthquake-prone areas. While papercrete has benefits for construction, more research is needed and acceptance is still lacking in India.
IRJET- Strength and Analysis of Basalt Fibre in ConcreteIRJET Journal
The document summarizes an experimental investigation into the strength and analysis of basalt fibre concrete. Cubes and cylinders were cast using M25 grade concrete with local materials and varying proportions (0.5%, 1%, 1.5%) of basalt fibres to determine the optimum fibre ratio. Testing showed basalt fibre concrete had higher toughness and impact strength than plain concrete. Addition of basalt fibre changed the failure mode from brittle to ductile. Basalt fibre improved tensile strength and flexural behavior at higher fibre ratios. Compressive and split tensile testing of specimens indicated basalt fibre concrete strengths were higher than plain concrete, with 1.5% fibre ratio performing best.
IRJET- Experimental Investigation for Replacement of Cement by using Proposic...IRJET Journal
The document presents an experimental investigation to replace cement partially with Prosopis juliflora fly ash and add glass fibers in concrete. Prosopis juliflora fly ash is obtained from biomass power plants as a waste material. The study aims to evaluate the compressive and tensile strength of concrete with cement replaced by 10%, 20%, and 30% Prosopis juliflora fly ash and addition of glass fibers. The properties of cement, fly ash, and concrete mixtures were tested according to Indian standards. The results showed that partial replacement of cement with fly ash and addition of glass fibers can enhance the strength of concrete while utilizing an industrial waste.
STUDY OF FLEXURAL BEHAVIOR OF HYBRID FIBRE REINFORCED CONCERETEIRJET Journal
The document studies the flexural behavior of hybrid fiber reinforced concrete. Cubes, cylinders and beams were cast to test the compressive strength, split tensile strength, and flexural strength respectively of concrete with 0.9% polypropylene fibers added. The results showed an increase of 24.35% in compressive strength, 11.74% in split tensile strength, and 15.85% in ultimate flexural load of beams with fibers compared to the control concrete without fibers. The addition of hybrid fibers was found to improve the mechanical properties of concrete by reducing crack propagation.
USE OF DISCRETE FIBERS IN ROAD CONSTRUCTION: A REVIEWIRJET Journal
The document discusses the use of discrete fibers, such as polypropylene fibers, in concrete for road construction. It first reviews previous research that has shown adding fibers to concrete can improve its mechanical properties, durability, and resistance to cracking. The document then summarizes several studies examining how different types and amounts of fibers affect the strength and workability of concrete. The studies found that compressive strength generally increased with fiber content up to an optimal level of 1%, while workability decreased as fiber content rose. Overall, the addition of discrete fibers was found to enhance the performance of concrete for use in roads.
TO INVESTIGATE THE STRENGTH PROPERTIES OF CONCRETE MIX HAVING REPLACEMENT OF ...IRJET Journal
This document investigates the strength properties of concrete mixes that replace cement with red mud and add bamboo fibers. Red mud is a waste product from aluminum production that is difficult to dispose of due to its chemical properties. Bamboo fibers are added to increase the tensile strength of concrete. The study evaluates the slump, compressive strength, split tensile strength, and flexural strength of concrete cubes and cylinders with 0-20% cement replaced by red mud and 0-1% bamboo fibers added. The results show that replacing 15% cement with red mud and adding 0.75% bamboo fibers produces concrete with optimal strength properties and is an economical and sustainable mix design.
IRJET- An Investigative Study of Eco-Friendly Bricks using Straw, Recycle...IRJET Journal
This document summarizes an investigative study on eco-friendly bricks made from straw, recycled plastics, mycelium, and grass. It provides background on the materials used - straw, recycled plastics, mycelium, cow dung, and grass. The methodology of the study is described. Tests were conducted on the bricks including compressive strength testing. The results found the bricks developed compressive strengths between 3 to 6 N/mm2, higher than conventional bricks. Water absorption was less than 20% indicating good quality. The study concluded these eco-friendly bricks were economically feasible and could be used for load-bearing structures and foundations.
EXPERIMENTAL STUDY OF SCC BY ADDING POLYPROPYLENE FIBER WITH CASHEW NUT SHELL...IRJET Journal
This document presents an experimental study on the mechanical properties of self-compacting concrete (SCC) with the addition of polypropylene fiber and partial replacement of cement with cashew nut shell ash (CNSA). CNSA was used to replace cement at levels of 5%, 10%, 15%, and 20% and polypropylene fiber was added at 1%. Cubes and cylinders were cast and tested for compressive and split tensile strength at 7 and 28 days. Test results showed that the mix with 10% CNSA replacement and 1% polypropylene fiber addition achieved the highest strengths, exceeding that of the control mix without additions. Therefore, this mix was determined to be the optimum mix proportion studied
STRENGTH STUDIES OF PAVEMENTS WITH FLY ASH AND STEEL FIBER AS REPLACING CEMENTIRJET Journal
This document discusses a study on the strength properties of concrete containing fly ash and steel fibers. Fly ash is a byproduct of coal combustion in thermal power plants in India. Using fly ash to partially replace cement in concrete can help address the problem of fly ash disposal. The study aims to evaluate the compressive strength, flexural strength, tensile strength, and workability of concrete with 10-30% fly ash replacement and 0.5-1.5% steel fiber addition. Previous research found that fly ash and steel fibers can increase the strength and durability of concrete. The current study tests concrete mixtures to analyze the effect of varying fly ash and steel fiber content on different concrete properties.
STRENGTH STUDIES OF PAVEMENTS WITH FLY ASH AND STEEL FIBER AS REPLACING CEMENTIRJET Journal
This document discusses a study on the strength properties of concrete containing fly ash and steel fibers. Fly ash is a byproduct of coal combustion in thermal power plants in India. Using fly ash to partially replace cement in concrete can help address the problem of fly ash disposal. The study aims to evaluate the compressive strength, flexural strength, tensile strength, and workability of concrete with 10-30% fly ash replacement and 0.5-1.5% steel fiber addition. Previous research found that fly ash and steel fibers can increase the strength and durability of concrete. The current study tests concrete mixtures to analyze the effect of varying fly ash and steel fiber content on different concrete properties.
Similar to Durability Properties of Banana Fibre Reinforced Fly Ash 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.
An improved modulation technique suitable for a three level flying capacitor ...IJECEIAES
This research paper introduces an innovative modulation technique for controlling a 3-level flying capacitor multilevel inverter (FCMLI), aiming to streamline the modulation process in contrast to conventional methods. The proposed
simplified modulation technique paves the way for more straightforward and
efficient control of multilevel inverters, enabling their widespread adoption and
integration into modern power electronic systems. Through the amalgamation of
sinusoidal pulse width modulation (SPWM) with a high-frequency square wave
pulse, this controlling technique attains energy equilibrium across the coupling
capacitor. The modulation scheme incorporates a simplified switching pattern
and a decreased count of voltage references, thereby simplifying the control
algorithm.
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.
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
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.