This document summarizes an experimental study on the mechanical properties of concrete using coconut coir fibres. M30 grade concrete was produced with coconut coir fibre additions of 0-4% by weight of cement. Cubes and cylinders were cast and tested for compressive and tensile strength at 7, 14, and 28 days. Results showed that compressive and tensile strength increased up to 2% coir fibre content, reaching maximum strengths of 40.53 MPa and 48.63 MPa respectively, but decreased beyond 2% due to workability issues. The study aims to evaluate coconut coir fibre as a low-cost and environmentally friendly concrete additive.
IRJET- Composite Material using Bamboo Fiber with Epoxy ResinIRJET Journal
This document describes a study that developed and tested a composite material made from bamboo fiber and epoxy resin. Bamboo fiber was extracted from bamboo using chemical digestion. The bamboo fiber was then used to reinforce an epoxy resin matrix. Tensile, hardness, and compressive tests were conducted on the composite material to analyze its mechanical properties. The results showed the bamboo fiber composite has good mechanical properties and strength comparable to conventional materials. As such, it could potentially be used in structural applications.
IRJET - An Experimental Investigation of Paver Block by using Coconut Fib...IRJET Journal
This document presents an experimental investigation on using coconut fiber as a partial replacement for cement in paver blocks. Coconut fiber was added at 0.1%, 0.2%, 0.3%, and 0.4% replacement by weight of cement. Paver blocks were cast and tested for compressive strength after 7, 14, and 28 days of curing. The results showed that compressive strength increased with the addition of coconut fiber up to 0.3% replacement, with the highest strength achieved at 0.4% replacement. Literature on previous studies on using natural fibers like coconut fiber in concrete was also reviewed, showing improvements to properties like compressive strength and flexural strength with fiber addition.
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.
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- 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.
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.
Characterization of natural fiber reinforced composites bamboo and sisal a re...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
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.
IRJET- Composite Material using Bamboo Fiber with Epoxy ResinIRJET Journal
This document describes a study that developed and tested a composite material made from bamboo fiber and epoxy resin. Bamboo fiber was extracted from bamboo using chemical digestion. The bamboo fiber was then used to reinforce an epoxy resin matrix. Tensile, hardness, and compressive tests were conducted on the composite material to analyze its mechanical properties. The results showed the bamboo fiber composite has good mechanical properties and strength comparable to conventional materials. As such, it could potentially be used in structural applications.
IRJET - An Experimental Investigation of Paver Block by using Coconut Fib...IRJET Journal
This document presents an experimental investigation on using coconut fiber as a partial replacement for cement in paver blocks. Coconut fiber was added at 0.1%, 0.2%, 0.3%, and 0.4% replacement by weight of cement. Paver blocks were cast and tested for compressive strength after 7, 14, and 28 days of curing. The results showed that compressive strength increased with the addition of coconut fiber up to 0.3% replacement, with the highest strength achieved at 0.4% replacement. Literature on previous studies on using natural fibers like coconut fiber in concrete was also reviewed, showing improvements to properties like compressive strength and flexural strength with fiber addition.
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.
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- 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.
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.
Characterization of natural fiber reinforced composites bamboo and sisal a re...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
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.
Mechanical Properties Of Sisal And Pineapple Fiber Hybrid Composites Reinforc...IJMER
In this study, Work has been carried out to investigated tensile , bending and impact
properties of hybrid composite of material constitutes sisal fiber and less discovered pineapple fiber.
These composites are adhered using epoxy resin cosists HY951 resin and LY551 hardener suitably
mixed in appropriate volume. Hybrid composites were prepared using sisal/pineapple fibers of 100/0,
70/30, 50/50, 30/70, and 0/100 Weight fraction ratios, while overall fiber weight fraction was fixed as
20gram. Here for preparing samples Hand lay up method is used , specimens are prepared , fibers are
arrenged in unidirectional manner and tests are carried out , which shows tensile and bending
strengths. The tensile & compressive test was applied on specimens of 300×50 & thickness varring
from 4-6 mm in dimensions but in different proportions of sisal and pineapple by weight. The test
result shows , the composite made by 50/50 fibers weight fraction of sisal & pineapple fiber has been
shown best impact strenght 47.2 N/mm2 as compare to other constitutes of sisal & pine fibers.this
constitute have good tensile & bending strength & their density is also less than sisal fibers. These
composites can be used in various purposes because of its unique features of recycleability, waste
utilization, environment friendly, bio-degradibility, good strength and a good alternative to plastics.
IRJET- Effect of Mercerization of Mechanical Behavior of Banana Fiber Reinfor...IRJET Journal
This document summarizes research on the effect of mercerization (treatment with sodium hydroxide solution) on the mechanical properties of banana fiber reinforced epoxy composites. Two sets of composites were fabricated - one with untreated banana fiber and one with banana fiber treated with NaOH solution. Composites containing 3-15% fiber by weight were tested for tensile strength, flexural strength, hardness, and impact energy. The research aims to study how fiber treatment and fiber content affect mechanical properties.
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
Tensile and Flexural Properties of Sisal/Jute Hybrid Natural Fiber CompositesIJMER
During the last two decades using natural fiber as reinforcement in polymers has increased
drastically. The present research work has been carried out to make use of sisal/jute natural fibers. The
aim of this paper is to describe the development and characterization of new set of hybrid natural fiber
composites. It is made by reinforcing sisal/ jute fibers with epoxy resin in matrix by using hand layup
technique. The natural fibers were extracted by retting and combing process manually. Hybrid
composites were prepared using sisal/jute fibers of 0/40, 10/30, 20/20, 30/10, 40/0 weight fraction ratios
while overall fiber weight fraction was fixed as 0.4 weight fraction. The tensile and flexural properties
were carried out using hybrid composite samples. The results indicated that addition of sisal fiber in
jute/epoxy composites up to 50% weight fraction results increasing the mechanical properties
Experimental study was conducted to investigate the use of coir fiber as reinforcement in cement composites. Coir fiber was treated with natural latex before being added to concrete in lengths of 20mm, 25mm, and 30mm at percentages of 0.5%, 0.75%, and 1%. Compressive strength tests at 7, 14, and 28 days showed that strength initially increased up to 0.75% fiber content and then decreased. The maximum compressive strength was achieved using 25mm fiber at 0.75% addition. The study concluded that coir fiber improves concrete properties and resistance to sulphate attack while reducing environmental pollution compared to synthetic fibers.
IRJET- Study on Utilization of Waste Plastic as Fibres in Fibre Reinforced Co...IRJET Journal
This document discusses using waste plastic as fibers in fiber reinforced concrete. It begins by outlining the large quantities of plastic waste generated worldwide and its adverse environmental effects. Previous studies have shown plastic waste can partially replace other materials in concrete without significantly affecting its properties. The objectives of this study are to examine how different waste plastics impact the strength, durability, and other properties of fiber reinforced concrete when used as fibers. It then reviews several previous studies that tested using various plastic wastes in concrete and found it can improve some properties like strength and decrease weight. The usage of plastic fibers in concrete is discussed as an efficient way to improve its mechanical properties while providing an outlet for plastic waste.
IRJET - Study on the Engineering Properties of Fibre-Reinforced Low Plast...IRJET Journal
This study investigated the engineering properties of low plasticity clay reinforced with glass fibers. A series of tests were conducted including compaction tests and unconfined compressive strength tests with varying fiber contents from 0-1.25%. The results showed that the optimum moisture content increased and maximum dry density decreased slightly with the addition of fibers. The unconfined compressive strength significantly improved with the addition of fibers up to a content of 0.75%, showing a 194% increase over the unreinforced soil strength. Above 0.75% fiber content, the strength began to decrease. Therefore, glass fiber reinforcement was found to be an effective method to improve the strength of low plasticity clay soils.
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
IRJET- Soil Stabilization by using Jute FibreIRJET Journal
This document summarizes a study on soil stabilization using jute fibre. The researchers mixed jute fibre at varying percentages between 0.25-1% with fine sand to improve its engineering properties. Tests found that adding jute fibre significantly increased the unconfined compressive strength and California bearing ratio of the soil. Specifically, a 1% addition of jute fibre maximized the strength properties of the soil-jute mixture. The study concluded that mixing jute fibre improves the load bearing capacity of soils, making them more suitable for construction applications.
Fabrication and Testing of Natural Fiber Reinforced Hybrid Composites Banana/...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
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.
IRJET- A Study based on Combination of Coconut Fibre and Human Hair Mixed wit...IRJET Journal
The document discusses a study that examines using a combination of coconut fibers and human hair mixed into concrete. The study aims to determine the effect on compressive and flexural strength at 7 and 28 days with 1%, 2%, and 3% replacement of cement. Previous research found that coconut fibers and human hair can increase concrete strength up to a point, but further addition leads to decreased strength. The current study mixes coconut fibers and human hair together to potentially increase strength while reducing environmental waste from these materials. Experimental results will determine the optimal fiber mixture and percentages.
Stablization of Soil By use of Geo-Jute as Soil StabilizerIRJET Journal
This document summarizes research on using geo-jute (jute fibers) as a soil stabilizer. It begins by discussing the need for soil stabilization in construction projects. It then provides background on jute, including its chemical composition and physical properties. The research methodology is described, which involves collecting soil samples and testing them with and without geo-jute using various tests like moisture content, specific gravity, compaction, and direct shear. The test results show that geo-jute improves the soil's engineering properties like bearing capacity, shear strength, and maximum dry density. In conclusion, this research demonstrates that geo-jute can effectively be used as a natural soil stabilizer.
IRJET- Synthesis and Analyse the Physical Properties of Sugarcane Bagasse Gla...IRJET Journal
This document describes research into synthesizing and analyzing the physical properties of sugarcane bagasse glassfiber epoxy composites. Specimens of the composite material were created using compression molding. The specimens were then tested for their mechanical properties, including tensile strength, flexural strength, impact resistance, and hardness, according to ASTM standards. The results of the mechanical tests on the sugarcane bagasse glassfiber epoxy composite were analyzed and discussed.
Optimization of dry sliding wear behaviour of zirconium filled bismaleimide n...IAEME Publication
This document summarizes research on optimizing the dry sliding wear behavior of zirconium-filled bismaleimide (BMI) nanocomposites. The study investigated the effects of varying zirconium dioxide content, sliding velocity, normal load, and sliding distance on the wear rate of the nanocomposites using Taguchi experimental design methods. Testing found that adding zirconium dioxide decreased the coefficient of friction and wear rate of the BMI nanocomposites. The normal load was the most significant factor affecting wear rate, followed by sliding velocity, sliding distance, and zirconium content. Improvements were also seen in mechanical properties like impact strength and hardness with the addition of zircon
IRJET - Behavior of Soil Reinforced with Polypropylene FibresIRJET Journal
This document discusses research into reinforcing soils with polypropylene fibers. Direct shear tests were conducted on two soil samples, river sand and sea sand, with varying amounts of polypropylene fibers added. The tests showed that adding fibers up to an optimum content of around 10% increased the angle of shearing resistance and cohesion of both soils. Maximum dry density decreased slightly with fiber addition while optimum moisture content increased. The study concluded that fiber reinforcement improved the mechanical properties and strength of the soils, making them more suitable for geotechnical applications.
Performance of Polypropylene Fibre Reinforced ConcreteIOSR Journals
This document summarizes an experimental study on the effects of adding polypropylene fibers to high strength concrete mixes (M30 and M40) at various fiber contents (0%, 0.5%, 1%, 1.5%, 2% by volume). Cubes and beams were tested at 7, 14, and 28 days to determine the compressive, tensile, and flexural strengths under different curing conditions. The results showed that polypropylene fibers increased the tensile and flexural strengths but did not significantly affect the compressive strength. An optimum fiber content of 1% was found to provide the best improvement in mechanical properties. Further research is recommended to better understand the performance of polypropylene fiber reinforced concrete
This paper present the state-of-the-art literature review and explore the research guidelines
on natural fibres polymeric composites. Due to the environmental issues, cost reduction and high
performance of engineering applications, the demand of natural fibre is increasing day by day.
Reinforcement with natural fiber in composites has recently gained attention due to low cost, easy
availability, low density, acceptable specific properties, ease of separation, enhanced energy
recovery, bio-degradability and recyclable in nature. To safeguard the environment, efforts are being
made for recycling different wastes and utilise them in value added applications.
IRJET- A Review on Strength Properties of Fibre and Hybrid Fibre Reinforced G...IRJET Journal
This document provides a review of research on the strength properties of fiber and hybrid fiber reinforced geopolymer concrete. It discusses studies that have added various fiber types like glass, polypropylene, and steel fibers to geopolymer concrete mixes. The addition of fibers is found to improve the mechanical properties of geopolymer concrete like compressive strength, tensile strength, and flexural strength by reducing its brittle nature. Hybrid fiber systems using two different fiber types provide further improvements by utilizing the properties of each fiber type. The document compares the results of different studies on fiber reinforced geopolymer concrete.
Study of Flexural Strength and Flexural Modulus of Reinforced Concrete Beams ...Premier Publishers
This study was carried out to investigate the effects of raffia palm fibre on some mechanical behaviour (flexural strength, flexural modulus, water absorption rate and density) of concrete. A concrete mix ratio of 1:2:4 was used for the concrete beams production, while a water to cement ratio (w/c) of 0.5 was adopted. In the study, three different fibre lengths (10, 20 and 30 mm) and three different fibre content (volume) by mass of fine aggregate (1, 2 and 3%) were considered. According to the results of the preliminary test carried out on the fine aggregate, it had a silt content of 1.6%, a moisture content of 8.3%, and a specific gravity of 2.95. Flexural properties of the beams were tested in accordance with ASTM recommended procedures after 28 curing days. Results obtained showed that fibre volume had significant (p ≤0.05) effect on the flexural strength and flexural modulus of the beams. The flexural strength and flexural modulus decreased linearly as the fibre volume increased from 0% to 3%. According to the results, the fibre reinforced beams were more ductile, when compared to the unreinforced concrete beams. In addition, the densities of the beams decreased with increase in the fibre volume; while their water absorption rate increased with increase in the fibre volume. The low densities and brittleness of the reinforced beams (at low volume) made them good building materials, especially when heavy weight beams are a problem, provided the beams are not exposed to high moisture levels.
IRJET- Experimental Study on the Mechanical Properties of Concrete using ...IRJET Journal
- The document describes an experimental study on the mechanical properties of concrete with the addition of glass fibers.
- Cubes and cylinders were cast with concrete containing 0-2.5% glass fibers by weight of cement. The specimens were tested at 7, 14, and 28 days to determine compressive and split tensile strengths.
- The results showed that compressive and tensile strengths increased with up to 1.5% glass fiber addition compared to normal concrete, beyond which strengths started to decrease. The maximum increases were 27% for compressive strength and 22% for tensile strength at 28 days.
Comparative Study on Strength Property of Fibre Reinforced Concrete using GI,...IRJET Journal
This document presents a comparative study on the strength properties of fibre reinforced concrete using coconut, glass, and galvanized iron (GI) fibres. Preliminary tests were conducted on the materials used, including cement, fine aggregate, coarse aggregate, GI fibres, coconut fibres, and glass fibres. A mix design for M25 grade concrete was developed. Concrete cubes and cylinders containing 1% fibre by volume were tested to determine their compressive, split tensile, and flexural strengths. The test results were compared to analyze how the different fibre types affect the strength properties of concrete. Previous research that also studied the use of these fibre types is reviewed.
Mechanical Properties Of Sisal And Pineapple Fiber Hybrid Composites Reinforc...IJMER
In this study, Work has been carried out to investigated tensile , bending and impact
properties of hybrid composite of material constitutes sisal fiber and less discovered pineapple fiber.
These composites are adhered using epoxy resin cosists HY951 resin and LY551 hardener suitably
mixed in appropriate volume. Hybrid composites were prepared using sisal/pineapple fibers of 100/0,
70/30, 50/50, 30/70, and 0/100 Weight fraction ratios, while overall fiber weight fraction was fixed as
20gram. Here for preparing samples Hand lay up method is used , specimens are prepared , fibers are
arrenged in unidirectional manner and tests are carried out , which shows tensile and bending
strengths. The tensile & compressive test was applied on specimens of 300×50 & thickness varring
from 4-6 mm in dimensions but in different proportions of sisal and pineapple by weight. The test
result shows , the composite made by 50/50 fibers weight fraction of sisal & pineapple fiber has been
shown best impact strenght 47.2 N/mm2 as compare to other constitutes of sisal & pine fibers.this
constitute have good tensile & bending strength & their density is also less than sisal fibers. These
composites can be used in various purposes because of its unique features of recycleability, waste
utilization, environment friendly, bio-degradibility, good strength and a good alternative to plastics.
IRJET- Effect of Mercerization of Mechanical Behavior of Banana Fiber Reinfor...IRJET Journal
This document summarizes research on the effect of mercerization (treatment with sodium hydroxide solution) on the mechanical properties of banana fiber reinforced epoxy composites. Two sets of composites were fabricated - one with untreated banana fiber and one with banana fiber treated with NaOH solution. Composites containing 3-15% fiber by weight were tested for tensile strength, flexural strength, hardness, and impact energy. The research aims to study how fiber treatment and fiber content affect mechanical properties.
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
Tensile and Flexural Properties of Sisal/Jute Hybrid Natural Fiber CompositesIJMER
During the last two decades using natural fiber as reinforcement in polymers has increased
drastically. The present research work has been carried out to make use of sisal/jute natural fibers. The
aim of this paper is to describe the development and characterization of new set of hybrid natural fiber
composites. It is made by reinforcing sisal/ jute fibers with epoxy resin in matrix by using hand layup
technique. The natural fibers were extracted by retting and combing process manually. Hybrid
composites were prepared using sisal/jute fibers of 0/40, 10/30, 20/20, 30/10, 40/0 weight fraction ratios
while overall fiber weight fraction was fixed as 0.4 weight fraction. The tensile and flexural properties
were carried out using hybrid composite samples. The results indicated that addition of sisal fiber in
jute/epoxy composites up to 50% weight fraction results increasing the mechanical properties
Experimental study was conducted to investigate the use of coir fiber as reinforcement in cement composites. Coir fiber was treated with natural latex before being added to concrete in lengths of 20mm, 25mm, and 30mm at percentages of 0.5%, 0.75%, and 1%. Compressive strength tests at 7, 14, and 28 days showed that strength initially increased up to 0.75% fiber content and then decreased. The maximum compressive strength was achieved using 25mm fiber at 0.75% addition. The study concluded that coir fiber improves concrete properties and resistance to sulphate attack while reducing environmental pollution compared to synthetic fibers.
IRJET- Study on Utilization of Waste Plastic as Fibres in Fibre Reinforced Co...IRJET Journal
This document discusses using waste plastic as fibers in fiber reinforced concrete. It begins by outlining the large quantities of plastic waste generated worldwide and its adverse environmental effects. Previous studies have shown plastic waste can partially replace other materials in concrete without significantly affecting its properties. The objectives of this study are to examine how different waste plastics impact the strength, durability, and other properties of fiber reinforced concrete when used as fibers. It then reviews several previous studies that tested using various plastic wastes in concrete and found it can improve some properties like strength and decrease weight. The usage of plastic fibers in concrete is discussed as an efficient way to improve its mechanical properties while providing an outlet for plastic waste.
IRJET - Study on the Engineering Properties of Fibre-Reinforced Low Plast...IRJET Journal
This study investigated the engineering properties of low plasticity clay reinforced with glass fibers. A series of tests were conducted including compaction tests and unconfined compressive strength tests with varying fiber contents from 0-1.25%. The results showed that the optimum moisture content increased and maximum dry density decreased slightly with the addition of fibers. The unconfined compressive strength significantly improved with the addition of fibers up to a content of 0.75%, showing a 194% increase over the unreinforced soil strength. Above 0.75% fiber content, the strength began to decrease. Therefore, glass fiber reinforcement was found to be an effective method to improve the strength of low plasticity clay soils.
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
IRJET- Soil Stabilization by using Jute FibreIRJET Journal
This document summarizes a study on soil stabilization using jute fibre. The researchers mixed jute fibre at varying percentages between 0.25-1% with fine sand to improve its engineering properties. Tests found that adding jute fibre significantly increased the unconfined compressive strength and California bearing ratio of the soil. Specifically, a 1% addition of jute fibre maximized the strength properties of the soil-jute mixture. The study concluded that mixing jute fibre improves the load bearing capacity of soils, making them more suitable for construction applications.
Fabrication and Testing of Natural Fiber Reinforced Hybrid Composites Banana/...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
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.
IRJET- A Study based on Combination of Coconut Fibre and Human Hair Mixed wit...IRJET Journal
The document discusses a study that examines using a combination of coconut fibers and human hair mixed into concrete. The study aims to determine the effect on compressive and flexural strength at 7 and 28 days with 1%, 2%, and 3% replacement of cement. Previous research found that coconut fibers and human hair can increase concrete strength up to a point, but further addition leads to decreased strength. The current study mixes coconut fibers and human hair together to potentially increase strength while reducing environmental waste from these materials. Experimental results will determine the optimal fiber mixture and percentages.
Stablization of Soil By use of Geo-Jute as Soil StabilizerIRJET Journal
This document summarizes research on using geo-jute (jute fibers) as a soil stabilizer. It begins by discussing the need for soil stabilization in construction projects. It then provides background on jute, including its chemical composition and physical properties. The research methodology is described, which involves collecting soil samples and testing them with and without geo-jute using various tests like moisture content, specific gravity, compaction, and direct shear. The test results show that geo-jute improves the soil's engineering properties like bearing capacity, shear strength, and maximum dry density. In conclusion, this research demonstrates that geo-jute can effectively be used as a natural soil stabilizer.
IRJET- Synthesis and Analyse the Physical Properties of Sugarcane Bagasse Gla...IRJET Journal
This document describes research into synthesizing and analyzing the physical properties of sugarcane bagasse glassfiber epoxy composites. Specimens of the composite material were created using compression molding. The specimens were then tested for their mechanical properties, including tensile strength, flexural strength, impact resistance, and hardness, according to ASTM standards. The results of the mechanical tests on the sugarcane bagasse glassfiber epoxy composite were analyzed and discussed.
Optimization of dry sliding wear behaviour of zirconium filled bismaleimide n...IAEME Publication
This document summarizes research on optimizing the dry sliding wear behavior of zirconium-filled bismaleimide (BMI) nanocomposites. The study investigated the effects of varying zirconium dioxide content, sliding velocity, normal load, and sliding distance on the wear rate of the nanocomposites using Taguchi experimental design methods. Testing found that adding zirconium dioxide decreased the coefficient of friction and wear rate of the BMI nanocomposites. The normal load was the most significant factor affecting wear rate, followed by sliding velocity, sliding distance, and zirconium content. Improvements were also seen in mechanical properties like impact strength and hardness with the addition of zircon
IRJET - Behavior of Soil Reinforced with Polypropylene FibresIRJET Journal
This document discusses research into reinforcing soils with polypropylene fibers. Direct shear tests were conducted on two soil samples, river sand and sea sand, with varying amounts of polypropylene fibers added. The tests showed that adding fibers up to an optimum content of around 10% increased the angle of shearing resistance and cohesion of both soils. Maximum dry density decreased slightly with fiber addition while optimum moisture content increased. The study concluded that fiber reinforcement improved the mechanical properties and strength of the soils, making them more suitable for geotechnical applications.
Performance of Polypropylene Fibre Reinforced ConcreteIOSR Journals
This document summarizes an experimental study on the effects of adding polypropylene fibers to high strength concrete mixes (M30 and M40) at various fiber contents (0%, 0.5%, 1%, 1.5%, 2% by volume). Cubes and beams were tested at 7, 14, and 28 days to determine the compressive, tensile, and flexural strengths under different curing conditions. The results showed that polypropylene fibers increased the tensile and flexural strengths but did not significantly affect the compressive strength. An optimum fiber content of 1% was found to provide the best improvement in mechanical properties. Further research is recommended to better understand the performance of polypropylene fiber reinforced concrete
This paper present the state-of-the-art literature review and explore the research guidelines
on natural fibres polymeric composites. Due to the environmental issues, cost reduction and high
performance of engineering applications, the demand of natural fibre is increasing day by day.
Reinforcement with natural fiber in composites has recently gained attention due to low cost, easy
availability, low density, acceptable specific properties, ease of separation, enhanced energy
recovery, bio-degradability and recyclable in nature. To safeguard the environment, efforts are being
made for recycling different wastes and utilise them in value added applications.
IRJET- A Review on Strength Properties of Fibre and Hybrid Fibre Reinforced G...IRJET Journal
This document provides a review of research on the strength properties of fiber and hybrid fiber reinforced geopolymer concrete. It discusses studies that have added various fiber types like glass, polypropylene, and steel fibers to geopolymer concrete mixes. The addition of fibers is found to improve the mechanical properties of geopolymer concrete like compressive strength, tensile strength, and flexural strength by reducing its brittle nature. Hybrid fiber systems using two different fiber types provide further improvements by utilizing the properties of each fiber type. The document compares the results of different studies on fiber reinforced geopolymer concrete.
Study of Flexural Strength and Flexural Modulus of Reinforced Concrete Beams ...Premier Publishers
This study was carried out to investigate the effects of raffia palm fibre on some mechanical behaviour (flexural strength, flexural modulus, water absorption rate and density) of concrete. A concrete mix ratio of 1:2:4 was used for the concrete beams production, while a water to cement ratio (w/c) of 0.5 was adopted. In the study, three different fibre lengths (10, 20 and 30 mm) and three different fibre content (volume) by mass of fine aggregate (1, 2 and 3%) were considered. According to the results of the preliminary test carried out on the fine aggregate, it had a silt content of 1.6%, a moisture content of 8.3%, and a specific gravity of 2.95. Flexural properties of the beams were tested in accordance with ASTM recommended procedures after 28 curing days. Results obtained showed that fibre volume had significant (p ≤0.05) effect on the flexural strength and flexural modulus of the beams. The flexural strength and flexural modulus decreased linearly as the fibre volume increased from 0% to 3%. According to the results, the fibre reinforced beams were more ductile, when compared to the unreinforced concrete beams. In addition, the densities of the beams decreased with increase in the fibre volume; while their water absorption rate increased with increase in the fibre volume. The low densities and brittleness of the reinforced beams (at low volume) made them good building materials, especially when heavy weight beams are a problem, provided the beams are not exposed to high moisture levels.
IRJET- Experimental Study on the Mechanical Properties of Concrete using ...IRJET Journal
- The document describes an experimental study on the mechanical properties of concrete with the addition of glass fibers.
- Cubes and cylinders were cast with concrete containing 0-2.5% glass fibers by weight of cement. The specimens were tested at 7, 14, and 28 days to determine compressive and split tensile strengths.
- The results showed that compressive and tensile strengths increased with up to 1.5% glass fiber addition compared to normal concrete, beyond which strengths started to decrease. The maximum increases were 27% for compressive strength and 22% for tensile strength at 28 days.
Comparative Study on Strength Property of Fibre Reinforced Concrete using GI,...IRJET Journal
This document presents a comparative study on the strength properties of fibre reinforced concrete using coconut, glass, and galvanized iron (GI) fibres. Preliminary tests were conducted on the materials used, including cement, fine aggregate, coarse aggregate, GI fibres, coconut fibres, and glass fibres. A mix design for M25 grade concrete was developed. Concrete cubes and cylinders containing 1% fibre by volume were tested to determine their compressive, split tensile, and flexural strengths. The test results were compared to analyze how the different fibre types affect the strength properties of concrete. Previous research that also studied the use of these fibre types is reviewed.
IRJET- Study of Strength of Concrete using Areca Fiber and Tile Powder as Add...IRJET Journal
The document studies the use of areca fiber and tile powder as additives to concrete to improve strength properties and utilize waste materials. Concrete cubes, cylinders and beams were prepared with 0-3% additions of areca fiber and 30% replacement of cement with tile powder. Compressive, split tensile and flexural strength tests at 28 days showed strength increases as fiber content increased, with 3% fiber concrete achieving the highest strengths - 29.44 MPa compression, 3.56 MPa tension and 6.9 MPa flexure. The study demonstrates the potential of using agricultural and construction waste materials like areca fiber and tile powder to create more sustainable and stronger concrete.
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- Experimental Investigation of Natural Fiber Reinforced ConcreteIRJET Journal
1. The document experimentally investigates the effects of adding coconut and jute fibers on the mechanical properties of fiber reinforced concrete, including compressive, split, and flexural strength using 0.5%, 1%, and 1.5% fiber content.
2. Testing found that 0.5% jute fiber content provided the highest compressive strength increase of 11.27% over normal concrete, while 0.5% coconut fiber provided the highest flexural and split tensile strength increases of 60.36% and 22.62%, respectively.
3. In general, the study showed that small additions of around 0.5% coconut or jute fiber can increase the overall strength properties of concrete.
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
PERFORMANCE ANALYSIS OF FIBER REINFORCED CONCRETE USING EXPERIMENTAL METHOD, ...IRJET Journal
This document discusses a study on the performance analysis of fiber reinforced concrete using experimental, ETABS, and Taguchi optimization methods. Glass and bamboo fibers were added to concrete at 1% by weight of cement. Specimens including cubes, cylinders, and beams were cast and tested after 28 days of curing to determine their compressive, splitting tensile, and flexural strengths. The experimental results showed that fiber reinforced concrete performed better than plain concrete. The optimal fiber mix was found to be 1% fiber content with 75% glass fibers and 25% bamboo fibers. Taguchi optimization and ETABS analysis were also used to evaluate fiber reinforced concrete performance.
IRJET- Experimental Analysis and Study the Effect of Waste Glass Wool Fib...IRJET Journal
This document discusses an experimental study on the effect of adding waste glass wool fiber to concrete properties. Glass wool fiber is a byproduct of glass manufacturing and is considered waste. The study aims to reuse this waste by adding glass wool fiber in amounts from 0.5% to 3% of cement weight to produce glass wool fiber reinforced concrete (GWFC). The concrete grade used is M25. The study assesses the compressive, tensile, and flexural strengths of the GWFC through laboratory testing and compares it to conventional concrete. Previous studies that investigated using glass wool fiber in concrete are also reviewed.
IRJET- Study of Stilt Plus 4 Residential ApartmentIRJET Journal
The document studies the use of polypropylene fiber in self-compacting concrete (SCC) for stilt apartment construction. SCC does not require compaction and helps minimize vibration damage. The addition of 2% and 4% polypropylene fiber to SCC improved its tensile and compressive strengths compared to SCC without fiber. While fiber improved strength, more than 4% fiber reduced strength. The fiber prevented microcrack formation and provided better durability in freeze-thaw cycles. Using SCC with 30% fly ash and polypropylene fiber provides a stronger, more durable concrete for stilt apartments suitable for flood-prone areas.
IRJET- Experimental Study on Recron Fiber Reinforced Concrete Blended with Fl...IRJET Journal
This document provides a review of experimental studies on fiber reinforced concrete blended with fly ash and metakaolin. It discusses three main points:
1) Previous studies have found that adding recron fibers to concrete increases its compressive, tensile, and flexural strengths. It reduces cracking and permeability.
2) The addition of fly ash and metakaolin as cement replacements is also found to improve concrete properties like strength and durability. Metakaolin increases strength while fly ash reduces costs.
3) Engineered cementitious concrete (ECC) is a ductile fiber reinforced concrete without coarse aggregates. Studies show ECC can withstand higher tensile strains than normal concrete due to its fiber reinforcement and crack-cont
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.
Enhancement of Concrete Properties by Inducing PET FibreIRJET Journal
The document discusses enhancing concrete properties by adding PET fiber. It conducted an experiment replacing coarse aggregates in concrete with 1%, 3%, and 5% PET fiber. Tests found that adding 1% fiber slightly increased compressive strength at 7 and 28 days while maintaining workability. Higher fiber percentages decreased strength and workability. In conclusion, PET fiber can increase concrete strength up to 1% addition but not above 3%, providing a way to reduce plastic waste in construction while maintaining quality.
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-Performance Evaluation of Waste Coconut Shells and Coir Fiber as Substi...IRJET Journal
This document presents the results of a study on using coconut shells and coir fiber as partial replacements for coarse and fine aggregates in concrete. Coconut shells were used as a partial replacement for coarse aggregates at percentages ranging from 0% to 30%, while coir fiber was used as a partial replacement for fine aggregates (sand) over the same range. Concrete mixtures were tested for their compressive and split tensile strengths at curing periods of 3, 7, and 28 days. The results showed that compressive and split tensile strengths peaked at a 20% replacement level, beyond which strengths started to decrease with further replacement. Therefore, coconut shells and coir fiber can be effectively used to partially replace conventional aggregates in concrete, with maximum
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.
IRJET- Natural Sisal Fibre Reinforced Concrete with Experimental StudiesIRJET Journal
The document discusses a study on using sisal fibers as reinforcement in concrete. Sisal fibers were added to concrete mixtures in different proportions. The study found that concretes reinforced with sisal fibers showed improved tensile and bending strength compared to plain concrete. The sisal fiber concrete composites were also found to be durable materials that could be used in rural and civil construction as a sustainable substitute for steel reinforced concrete. The production of sisal fibers requires less energy than synthetic fibers or asbestos. Key properties tested included compressive strength, split tensile strength, water absorption and moisture migration of the sisal fiber reinforced concrete mixtures. The results indicate sisal fiber concrete has properties suitable for use in construction applications.
Effect of Steel Fiber and Jute Fiber In High Strength ConcreteIRJET Journal
This document discusses a study on the effect of adding steel fiber and jute fiber to high strength concrete. Steel fiber and jute fiber in lengths of 15 mm were added in percentages of 0.00%, 0.25%, 0.50%, 1.00% and 1.50% by weight of concrete to produce M60 grade concrete cubes and beams. The compressive strength and flexural strength of the concrete mixtures were then tested at 7, 14, and 28 days. The results showed that both the compressive strength and flexural strength increased up to a certain fiber content percentage, but then decreased with higher fiber content percentages. The maximum strengths were achieved with 1.00% steel fiber and 1.00% jute
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.
Experimental Study on Fiber Reinforced Concrete with Recycled Aggregate Repla...IRJET Journal
This document presents the results of an experimental study on fiber reinforced concrete with recycled aggregate replacing natural aggregate. Concrete samples were prepared with 0%, 5%, and 10% replacement of natural coarse aggregate with recycled aggregate from demolished buildings. Polypropylene fibers of 10mm length were added in proportions of 0%, 0.1%, and 0.15% of cement weight. Compressive strength, tensile strength, and split tensile strength were tested at 7, 14, and 28 days of curing. The results showed that the addition of polypropylene fibers increased the strengths of concrete with recycled aggregate replacement. The highest strengths were achieved with a fiber addition of 0.15% and 5% recycled aggregate replacement.
IRJET- Use of Ruby Mica Dust as a Replacing Material in Design Mix Concrete -...IRJET Journal
This document summarizes research on using ruby mica dust to partially replace sand in concrete mix designs. Key points:
- Ruby mica is an industrial waste material obtained from mica mining that has pozzolanic properties.
- The study investigated replacing sand in M20 and M25 concrete mixes with 0%, 25%, 50%, 75%, and 100% ruby mica dust to evaluate workability and compressive, flexural, and tensile strengths at 14 and 28 days.
- The goal is to utilize an industrial waste to potentially reduce the cost and environmental impact of concrete production by replacing a portion of the sand.
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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
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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
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Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
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Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
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A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
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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
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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
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Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
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Review on studies and research on widening of existing concrete bridgesIRJET Journal
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React based fullstack edtech web applicationIRJET Journal
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A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
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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.
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/)
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
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.
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.
Rainfall intensity duration frequency curve statistical analysis and modeling...bijceesjournal
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
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.
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.