Background: This research mainly consists of determining whether concrete with the addition of fiberglass helps in its physical and mechanical properties and properties on the compressive, bending and adsorption forces of concrete in Iraq. Aim of project: this paper aims to modelling of sample beam concrete when added fibre glass to know flexural strength. material and method: In this study, 4 samples were collected were distributed on (control sample - and 3 samples to which fibers were added in different proportions with dimension1000mmlength -150 width-150height ).The tests applied in this experiment were based on the discipline positioning test at the age of 28 days and The L.V.D.T deviation reader was relied upon until a failure occurred the sample ,The modelling of concrete beams was based on the according blender program. Results : These obtained data were analysed using Microsoft Excel and SPSS. result showed compressive strength test of concrete beams had an increase compared to the control group when added 1.5% with 9.2%. It was noted that there were statistical differences between samples to which glass concrete fibers were added with the control group at p value <0.001 .the tensile strength achieved the highest value increase when glass fibers were added with 1.5% to become 5.3 MPA, The results of the three-dimensional modelling of concrete beams using the blender program appeared Great accuracy and convergence compared to the laboratory results of the research samples Conclusion: Reinforced concrete beams reinforced with glass fibers showed greater tensile and compression resistance compared to traditional reinforced concrete beams in order to achieve them and modelling the results helped in obtaining more accurate results, although there was no significant difference in the extracted result
The document is a project report on the construction of a model showing typical applications of fiber reinforced concrete. It includes an introduction, objectives, literature review on the performance and properties of different types of fiber reinforced concrete. The methodology describes casting concrete cubes and beams with and without polypropylene fibers. Test results found that fiber reinforced concrete exhibited slightly higher compressive strength and 31% higher flexural strength compared to regular concrete. Applications of fiber reinforced concrete include pavements, tunnel linings, slopes and more.
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.
Study on Insulated Concrete Forms Using Fibers: A ReviewIRJET Journal
This document summarizes research on using fibers to improve the properties of insulated concrete forms (ICF). It reviews previous studies that found fibers can increase properties like energy absorption, toughness, ductility, and strength. The objectives of the current study are to investigate how steel and natural fibers behave in ICF and their effect on physical and mechanical characteristics. Previous issues with ICF construction are also discussed to motivate the research.
IRJET - Experimental Investigation on Flexural Behaviour of Reinforced Concre...IRJET Journal
This document presents an experimental investigation on the flexural behavior of reinforced concrete with milled carbon fibers. Concrete specimens containing 0.5%, 1%, 1.5%, and 2% milled carbon fibers by weight of cement were tested to determine their compressive strength, split tensile strength, and flexural strength after 7, 14, and 28 days of curing. The results showed that adding milled carbon fibers increased the compressive strength by up to 32%, tensile strength by over 100%, flexural strength by 62.5%, and reduced deflection. The document concludes that adding milled carbon fibers improves the mechanical properties of concrete.
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This document presents the results of a study on the effects of adding marble dust and steel fibers to concrete. The study investigated the impact on compressive strength, split tensile strength, and flexural strength. Concrete cubes, cylinders, and beams were cast with varying percentages of marble dust replacing cement and steel fibers added. Testing at 28 days showed that replacing 10% of cement with marble dust and adding up to 1% steel fibers increased the compressive, split tensile, and flexural strengths of the concrete compared to normal concrete without additions. The optimal mix was found to be 10% marble dust and 1% steel fibers.
IRJET - A Review Paper on Comparative Study of Lightweight Concrete and Reinf...IRJET Journal
This document provides a review of lightweight concrete and compares it to reinforced concrete. It discusses that lightweight concrete has a lower density than conventional concrete, which reduces dead load and transportation costs. The main types of lightweight concrete are no-fines concrete, lightweight aggregate concrete, and aerated concrete. The document summarizes several studies that found lightweight concrete to have lower compressive strength but adequate properties for structural use. It provides information on the density, modulus of elasticity, flexural strength, and other properties of lightweight concrete. The conclusion is that lightweight concrete is an economical alternative to normal weight concrete for construction.
IRJET - Study on Workability and Compressive Strength of Concrete Blended...IRJET Journal
This document summarizes a study on the workability and compressive strength of concrete blended with steel fibers. Steel fibers were added to concrete mixes in volumes of 0%, 0.5%, 1%, 1.5%, and 2%. Testing found that as fiber content increased, workability decreased, requiring the addition of plasticizers. Compressive strength generally increased with higher fiber content up to 2%, with a maximum strength increase of 27.67% observed for 2% fiber volume with plasticizer addition. The study concluded that steel fiber reinforcement improved compressive strength but reduced workability, and plasticizers helped offset the loss of workability.
IRJET- Effect of Fiber Addition on Mechanical Properties of ConcreteIRJET Journal
The document discusses the effect of adding different types and amounts of steel fibers and glass fibers on the mechanical properties of concrete. Tests were conducted on concrete specimens with 0%, 1%, 2%, and 3% volume fractions of steel fibers to measure their compressive strength and split tensile strength after 28 days. The results showed that compressive strength and split tensile strength increased as the steel fiber content increased, with the 3% fiber volume fraction specimens exhibiting the highest strengths. Similar tests also examined the effect of 0%, 2%, 4%, and 6% glass fiber volume fractions. Both steel and glass fibers improved the mechanical properties of concrete compared to normal concrete without fibers.
The document is a project report on the construction of a model showing typical applications of fiber reinforced concrete. It includes an introduction, objectives, literature review on the performance and properties of different types of fiber reinforced concrete. The methodology describes casting concrete cubes and beams with and without polypropylene fibers. Test results found that fiber reinforced concrete exhibited slightly higher compressive strength and 31% higher flexural strength compared to regular concrete. Applications of fiber reinforced concrete include pavements, tunnel linings, slopes and more.
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.
Study on Insulated Concrete Forms Using Fibers: A ReviewIRJET Journal
This document summarizes research on using fibers to improve the properties of insulated concrete forms (ICF). It reviews previous studies that found fibers can increase properties like energy absorption, toughness, ductility, and strength. The objectives of the current study are to investigate how steel and natural fibers behave in ICF and their effect on physical and mechanical characteristics. Previous issues with ICF construction are also discussed to motivate the research.
IRJET - Experimental Investigation on Flexural Behaviour of Reinforced Concre...IRJET Journal
This document presents an experimental investigation on the flexural behavior of reinforced concrete with milled carbon fibers. Concrete specimens containing 0.5%, 1%, 1.5%, and 2% milled carbon fibers by weight of cement were tested to determine their compressive strength, split tensile strength, and flexural strength after 7, 14, and 28 days of curing. The results showed that adding milled carbon fibers increased the compressive strength by up to 32%, tensile strength by over 100%, flexural strength by 62.5%, and reduced deflection. The document concludes that adding milled carbon fibers improves the mechanical properties of concrete.
IRJET- Study on Self Compacting Concrete using Recycled Aggregate as Part...IRJET Journal
This document presents the results of a study on the effects of adding marble dust and steel fibers to concrete. The study investigated the impact on compressive strength, split tensile strength, and flexural strength. Concrete cubes, cylinders, and beams were cast with varying percentages of marble dust replacing cement and steel fibers added. Testing at 28 days showed that replacing 10% of cement with marble dust and adding up to 1% steel fibers increased the compressive, split tensile, and flexural strengths of the concrete compared to normal concrete without additions. The optimal mix was found to be 10% marble dust and 1% steel fibers.
IRJET - A Review Paper on Comparative Study of Lightweight Concrete and Reinf...IRJET Journal
This document provides a review of lightweight concrete and compares it to reinforced concrete. It discusses that lightweight concrete has a lower density than conventional concrete, which reduces dead load and transportation costs. The main types of lightweight concrete are no-fines concrete, lightweight aggregate concrete, and aerated concrete. The document summarizes several studies that found lightweight concrete to have lower compressive strength but adequate properties for structural use. It provides information on the density, modulus of elasticity, flexural strength, and other properties of lightweight concrete. The conclusion is that lightweight concrete is an economical alternative to normal weight concrete for construction.
IRJET - Study on Workability and Compressive Strength of Concrete Blended...IRJET Journal
This document summarizes a study on the workability and compressive strength of concrete blended with steel fibers. Steel fibers were added to concrete mixes in volumes of 0%, 0.5%, 1%, 1.5%, and 2%. Testing found that as fiber content increased, workability decreased, requiring the addition of plasticizers. Compressive strength generally increased with higher fiber content up to 2%, with a maximum strength increase of 27.67% observed for 2% fiber volume with plasticizer addition. The study concluded that steel fiber reinforcement improved compressive strength but reduced workability, and plasticizers helped offset the loss of workability.
IRJET- Effect of Fiber Addition on Mechanical Properties of ConcreteIRJET Journal
The document discusses the effect of adding different types and amounts of steel fibers and glass fibers on the mechanical properties of concrete. Tests were conducted on concrete specimens with 0%, 1%, 2%, and 3% volume fractions of steel fibers to measure their compressive strength and split tensile strength after 28 days. The results showed that compressive strength and split tensile strength increased as the steel fiber content increased, with the 3% fiber volume fraction specimens exhibiting the highest strengths. Similar tests also examined the effect of 0%, 2%, 4%, and 6% glass fiber volume fractions. Both steel and glass fibers improved the mechanical properties of concrete compared to normal concrete without fibers.
An Experimental Study on Self Compacting Concrete using Electric Arc Furnace ...ijtsrd
Compaction is not promising and also in dense reinforcement structural elements. The self flow of fresh concrete is the mandatory requirement for SCC and hence the suitability of EAFOS as coarse aggregate in SCC has to be examined before using in SCC. However, the reports on the suitability of EAFOS as coarse aggregate in SCC are limited. Hence, the fresh concrete properties of SCC with EAFOS as aggregate such as flowing, filling and passing ability were examined. In addition, the hardened concrete properties of SCC with EAFOS such as density, compressive strength, flexural strength, modulus of elasticity and ultrasonic pulse velocity UPV were investigated and compared with the results of normal concrete. The relationship between the mechanical properties of concrete was arrived and also suitable models were developed for predicting the compressive strength of SCC using UPV results. Veeru Kumar Gupta | Dr. Abhay Kumar Jha | Dr. Abhay Kumar Jha "An Experimental Study on Self-Compacting Concrete using Electric Arc Furnace Oxidizing Slag" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-5 , August 2022, URL: https://www.ijtsrd.com/papers/ijtsrd50677.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/50677/an-experimental-study-on-selfcompacting-concrete-using-electric-arc-furnace-oxidizing-slag/veeru-kumar-gupta
Experimental Study of Strength Parameters of Hybrid Fibre Reinforced C...IRJET Journal
The document presents results from an experimental study investigating the strength parameters of hybrid fiber reinforced concrete (HFRC). Concrete mixtures were created with combinations of polypropylene fibers and hooked steel fibers ranging from 0.5-2% by volume. Testing found that HFRC has higher impact strength, split tensile strength, and pullout strength compared to conventional concrete, with only marginal improvements in compressive strength. The optimum mixture was found to be 0.8% steel fiber and 0.3% polypropylene fiber for workability and strength without superplasticizer, and 1.4% steel fiber and 0.3% polypropylene fiber with superplasticizer.
Experimental Study on the Mechanical Behaviour of Sisal Fibre Reinforced Self...IRJET Journal
The document presents an experimental study on the mechanical behavior of sisal fibre reinforced self-compacting concrete (SFRSCC). Sisal fibres were added to self-compacting concrete in percentages of 0.25%, 0.5%, 0.75%, and 1%. Test results showed that the addition of sisal fibres reduced workability but mechanical properties improved up to 0.5% fibre content. The compressive strength and split tensile strength of SFRSCC with 0.5% fibres increased by 15% and 18.7% respectively compared to the control mix. The optimum fibre content was found to be 0.5% based on improved mechanical properties.
EVALUATION OF STEEL SLAG AS PARTIAL REPLACEMENT OF CEMENT IN CONCRETEIRJET Journal
This study evaluated the use of steel slag as a partial replacement for cement in concrete. Various concrete mixtures were produced with 0-20% replacement of cement with steel slag. The compressive strength, workability, and split tensile strength of the mixtures were then tested at 7, 14, and 28 days. The results showed that replacing 15% of cement with steel slag improved the compressive strength and split tensile strength compared to normal concrete. Workability was highest with 20% slag replacement. In conclusion, a 15% partial replacement of cement with steel slag produced concrete with enhanced strength properties and workability, indicating steel slag's potential as a sustainable cement replacement.
Experimental Study on Strength of Concrete with Addition of Chopped Glass FiberIRJET Journal
This study experimentally investigated the effect of adding chopped glass fibers on the strength properties of concrete. Glass fibers were added at 0.3%, 0.5%, and 0.7% of the total binder content. The compressive strength, split tensile strength, and flexural strength of concrete specimens containing different amounts of glass fibers were tested at 7 and 28 days. The results showed that the strengths increased with higher glass fiber content, with the 0.7% fiber mix achieving the highest strengths. Non-destructive rebound hammer and ultrasonic pulse velocity tests also indicated that concretes with glass fibers had better strength and quality than plain concrete without fibers.
The document describes an experimental study that evaluated the flexural behavior of steel fiber reinforced high strength self-compacting concrete slabs. Six concrete slabs were tested with varying concrete types (ordinary, self-compacting, high strength self-compacting) and steel fiber volume fractions (0%, 0.75%, 1.5%). Test results found that using self-compacting concrete and adding steel fibers improved flexural resistance and led to more ductile failure. The high strength self-compacting concrete slab with 1.5% steel fibers showed the highest ultimate load capacity, an 18.8% increase over the non-fiber slab. A finite element analysis was able to reasonably model the slab test results.
IRJET-Experimental behavior of Concrete under Compression Load with Steel Fib...IRJET Journal
This document summarizes research on the experimental behavior of concrete under compression load when partially replacing cement with steel fiber and ferrocement. The research involved casting and testing cylinders and cubes of M25 grade concrete with different mixes - some with steel fiber and ferrocement additions and others without. The results showed that concrete with a 0.5% addition of steel fiber and no ferrocement layers had the highest ultimate strain and a 16% increase in compressive strength compared to plain concrete cubes. The research concluded that steel fiber and ferrocement additions can improve the performance and properties of concrete under compression loads.
dding fibers to concrete helps enhance its tensile strength and ductility. Synthetic fibres
are preferable to steel ones which suffer from corrosion that reduces their functionality with time.
More consideration is given to synthetic fibres as they can be sourced from waste plastics and their
incorporation in concrete is considered a new recycling pathway
PERFORMANCE ON HOOKED STEEL FIBER REINFORCED CONCRETE BY PARTIAL REPLACEMENT ...IRJET Journal
1. The document summarizes a study on the performance of hooked steel fiber reinforced concrete with partial replacement of cement with ground granulated blast furnace slag (GGBS).
2. The study found that replacing cement with 30% GGBS and adding 1% hooked steel fiber increased the compressive strength at 7 days to 31.28 MPa and at 28 days to 44.56 MPa compared to normal concrete without additions.
3. Similarly, the split tensile strength was highest at 30% GGBS and 1% steel fiber, reaching 3.15 MPa at 7 days and 4.58 MPa at 28 days.
Experiments Study on the Strength Properties of M30 Concrete with Glass Fiber...IRJET Journal
The document presents the results of an experimental study on the strength properties of M30 concrete with glass fibers as a partial replacement for cement. Six concrete cubes were tested to evaluate the effect of glass fibers on compressive, flexural and split-tensile strength at different fiber contents. The highest compressive strength of 40.5 MPa was achieved with a glass fiber content of 0.3% replacement of cement. While glass fibers increased the strengths slightly, contents over 0.3% resulted in lower strengths. Pulse velocity tests indicated that glass fibers marginally lowered concrete quality but it remained satisfactory. The study concluded that adding an optimal amount of glass fibers can increase the strengths of concrete.
Study of the Effect of Optimized Hybrid Fiber on the Strength Characteristics...ijtsrd
To determine the ideal dosage amount of hybrid fibre in concrete mixtures, the strength properties including cube compressive strength, cylinder compressive strength, split tensile strength, and flexural strength were examined. By casting a beam for every mix proportion, the structural behaviour and structural performance of hybrid fibre reinforced concrete are determined. Compared to control reinforced concrete, the hybrid fibre addition with 0.75 steel fibre and 0.25 PVA fibre shown good strength characteristics and structural behaviour, according to the experimental examination. For hybrid fibre reinforced concrete, the relationship between several parameters in strength characteristics, structural behaviour, and structural performance is derived by regression analysis. Sanjeev Suman | Gourav Tiwari | Abhay Kumar Jha "Study of the Effect of Optimized Hybrid Fiber on the Strength Characteristics and Structural Performance of the Concrete" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-1 , February 2023, URL: https://www.ijtsrd.com/papers/ijtsrd52833.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/52833/study-of-the-effect-of-optimized-hybrid-fiber-on-the-strength-characteristics-and-structural-performance-of-the-concrete/sanjeev-suman
Enhancing Compressive and Flexural Strength of High Strength Concrete using S...IRJET Journal
The document discusses using steel and polypropylene fibers to enhance the compressive and flexural strength of high-strength concrete (HSC). It aims to investigate how adding steel fiber at proportions of 0.5%, 1%, and 1.5%, and polypropylene fiber at 0.25%, 0.50%, 0.75%, and 1% affects the compressive and flexural strength of HSC. Previous studies found that both steel and polypropylene fibers improve the mechanical properties of HSC, with higher fiber content leading to greater improvements. The document outlines the materials used to prepare HSC specimens, including cement, fine aggregate, and coarse aggregate.
Strength and behavior of innovative composite columnsIAEME Publication
This document describes an experimental study that tested 18 reinforced concrete columns with various innovative composite reinforcements under concentric compression loads. The columns were made with concrete reinforced with welded steel mesh, expanded steel mesh, fiberglass mesh, or Tensar mesh. Testing results showed that columns with these composite reinforcements achieved higher strength, greater crack resistance, higher ductility, and improved energy absorption compared to a control reinforced concrete column. Finite element analysis also agreed with the experimental test results. The study demonstrated the effectiveness of using innovative composite materials to reinforce concrete columns.
This document summarizes a study on the effects of adding admixtures and synthetic polymer fibers to concrete of different strengths. Testing of 54 concrete cylinders showed that the addition of admixtures and fibers increased compressive strength more than reference concrete, allowing a reduction in cement percentage. The highest strengths were achieved with admixture-added concrete, followed by fiber-added and normal concrete. While fibers did not significantly boost strength on their own, the combination of admixtures and fibers promises sustainable, durable concrete structures.
Impact On Abrasion Resistance of Concrete Using M-sand with Polypropylene and...IRJET Journal
This document discusses a study investigating the effect of using manufactured sand (m-sand) as a partial replacement for river sand in concrete, along with the addition of steel and polypropylene fibers, on the abrasion resistance and compressive strength of concrete. Testing found that replacing 60% of river sand with m-sand improved compressive strength by 16% and abrasion resistance by 23-30%. The optimum dosages were found to be 1% steel fibers by volume and 1.5kg/m3 of polypropylene fibers. A strong correlation was observed between higher compressive strength and lower abrasion loss. The study concludes that m-sand can effectively replace river sand, and the addition of fibers, particularly
IRJET- Experimental Investigation of Steel Fiber Reinforced Concrete with Par...IRJET Journal
This document discusses an experimental investigation into steel fiber reinforced concrete with partial replacement of coarse aggregate by cupola slag. The following key points are discussed:
1. Steel fibers were added to concrete to improve properties like strength and ductility. Cupola slag, a byproduct from cast iron manufacturing, was used to partially replace coarse aggregate.
2. Tests were conducted to study the effect of adding hooked steel fibers and varying amounts of cupola slag on the mechanical properties of concrete, including compressive strength, split tensile strength, and flexural strength.
3. A literature review presented research on the use of steel fibers to enhance concrete properties and studies investigating the use of cupola slag as a partial replacement for
Shear Behavior of Reinforced Concrete Beams Contained Nano Silica and Strengt...IRJET Journal
This document summarizes a study on the shear behavior of reinforced concrete beams containing nano silica and strengthening with epoxy injection. Eight concrete mixes were tested with different nano silica contents (0, 2, 4, 6%) and cement amounts to achieve compressive strengths of 30, 45, and 60 MPa. Beams were internally injected with epoxy in the shear zone and tested. Results showed beams with 4% nano silica performed best in terms of ultimate load and ductility. Epoxy injection increased ultimate load by up to 7.4% and absorbed energy by up to 38.6% for most beams. The study evaluated how nano silica and epoxy injection affect the shear behavior and properties
Experimental investigation on Controlled Permeable Formwork Liner in steel fi...IRJET Journal
This document summarizes an experimental study that investigated the effects of using a controlled permeable formwork (CPF) liner and adding steel fibers on the mechanical properties of M20 grade concrete. Specimens were prepared with and without CPF liner and with 0%, 1%, and 2% steel fibers by weight. At 28 days, compressive strength, split tensile strength, rebound hammer, ultrasonic pulse velocity, and water absorption tests were performed. The results showed that concrete with CPF liner and steel fibers had higher strength and durability properties compared to normal concrete without CPF liner or steel fibers. In particular, the CPF liner produced a denser, less porous surface zone in the concrete that improved its dur
The precast channel system (U-Ditch) is one of the innovations of precast concrete
designated as a channel for drainage and irrigation systems. The U-Ditch must have
sufficient bending capacity to carry a major load due to ground pressure. However,
the addition of wall thickness will lead to the heavy construction product. Therefore, a
new product innovation was developed in this study, where the wall thickness was
reduced and strengthened using fiber reinforced polymer (FRP). In these regards, this
study aims to investigate the effect of FRP strengthening on the behavior of precast
channel systems. Three types of specimens were tested in this study. Type N was
normal U-ditch which without a reduction of wall thickness. Type C was U-ditch with
a reduction of wall thickness (corrugate). Type CF was U-ditch with a reduction of
wall thickness (corrugate) and strengthened using fiber reinforced polymer (FRP).
The dimension of all specimens was 500x500x1000 mm3. The specimens were tested
based on Japan Industrial Standard (JIS). The results indicated that the weight
reduction can be achieved by reducing the wall thickness in the area between the main
reinforcement. However, it reduced the bending capacity of the wall. The
strengthening using FRP sheet in the thickness reduction section was effectively to
increase the bending capacity of wall, which had relatively the same with Type N
(normal). Finally, all the specimens failed due to the flexural cracks around hook area
of the precast channel
IRJET- Functionally Graded Concrete: An Experimental AnalysisIRJET Journal
This document summarizes an experimental analysis of functionally graded concrete. Functionally graded concrete consists of concrete with varying material properties or compositions across its structure to optimize performance. The study investigated concrete mixtures with partial cement replacement using dolomite powder. Specimens including cubes, cylinders, and beams were cast with normal concrete in the compression zone and concrete with 20-40% dolomite-replaced cement in the tension zone. Testing showed that mixtures with 30% dolomite replacement and an interface at 75mm from the bottom achieved the highest compressive strength. Flexural strength was also highest for mixtures with a graded interface. The results indicate that functionally graded concrete is a promising alternative to conventional concrete.
The Statutory Interpretation of Renewable Energy Based on Syllogism of Britis...AI Publications
The current production for energy consumption generates harmful impacts of carbon dioxide to the environment causing instability to sustainable development goals. The constitutional reforms of British Government serve to be an important means of resolving any encountered incompatibilities to political environment. This study aims to evaluate green economy using developed equation for renewable energy towards political polarization of corporate governance. The Kano Model Assessment is used to measure the equivalency of 1970 Patents Act to UK Intellectual Property tabulating the criteria for the fulfillment of sustainable development goals in respect to the environment, artificial intelligence, and dynamic dichotomy of administrative agencies and presidential restriction, as statutory interpretation development to renewable energy. The constitutional forms of British government satisfy the sustainable development goals needed to fight climate change, advocate healthy ecosystem, promote leadership of magnates, and delegate responsibilities towards green economy. The presidential partisanship must be observed to delineate parties of concerns and execute the government prescriptions in equivalence to the dichotomous relationship of technology and the environment in fulfilling the rights and privileges of all citizens. Hence, the political elites can execute corporate governance towards sustainable development of renewable energy promoting environmental parks and zero emission target of carbon dioxide discharges. The economic theory developed in statutory interpretation for renewable energy serves as a tool to reduce detrimental impacts of carbon dioxide to the environment, mitigate climate change, and produce artefacts of bioenergy and artificial intelligence promoting sustainable development. It is suggested to explore other vulnerabilities of artificial intelligence to prosper economic success.
Enhancement of Aqueous Solubility of Piroxicam Using Solvent Deposition SystemAI Publications
Piroxicam is a non-steroidal anti-inflammatory drug that is characterized by low solubility-high permeability. The present study was designed to improve the dissolution rate of piroxicam at the physiological pH's through its increased solubility by using solvent deposition system.
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This document summarizes research on the experimental behavior of concrete under compression load when partially replacing cement with steel fiber and ferrocement. The research involved casting and testing cylinders and cubes of M25 grade concrete with different mixes - some with steel fiber and ferrocement additions and others without. The results showed that concrete with a 0.5% addition of steel fiber and no ferrocement layers had the highest ultimate strain and a 16% increase in compressive strength compared to plain concrete cubes. The research concluded that steel fiber and ferrocement additions can improve the performance and properties of concrete under compression loads.
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1. The document summarizes a study on the performance of hooked steel fiber reinforced concrete with partial replacement of cement with ground granulated blast furnace slag (GGBS).
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3. Similarly, the split tensile strength was highest at 30% GGBS and 1% steel fiber, reaching 3.15 MPa at 7 days and 4.58 MPa at 28 days.
Experiments Study on the Strength Properties of M30 Concrete with Glass Fiber...IRJET Journal
The document presents the results of an experimental study on the strength properties of M30 concrete with glass fibers as a partial replacement for cement. Six concrete cubes were tested to evaluate the effect of glass fibers on compressive, flexural and split-tensile strength at different fiber contents. The highest compressive strength of 40.5 MPa was achieved with a glass fiber content of 0.3% replacement of cement. While glass fibers increased the strengths slightly, contents over 0.3% resulted in lower strengths. Pulse velocity tests indicated that glass fibers marginally lowered concrete quality but it remained satisfactory. The study concluded that adding an optimal amount of glass fibers can increase the strengths of concrete.
Study of the Effect of Optimized Hybrid Fiber on the Strength Characteristics...ijtsrd
To determine the ideal dosage amount of hybrid fibre in concrete mixtures, the strength properties including cube compressive strength, cylinder compressive strength, split tensile strength, and flexural strength were examined. By casting a beam for every mix proportion, the structural behaviour and structural performance of hybrid fibre reinforced concrete are determined. Compared to control reinforced concrete, the hybrid fibre addition with 0.75 steel fibre and 0.25 PVA fibre shown good strength characteristics and structural behaviour, according to the experimental examination. For hybrid fibre reinforced concrete, the relationship between several parameters in strength characteristics, structural behaviour, and structural performance is derived by regression analysis. Sanjeev Suman | Gourav Tiwari | Abhay Kumar Jha "Study of the Effect of Optimized Hybrid Fiber on the Strength Characteristics and Structural Performance of the Concrete" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-1 , February 2023, URL: https://www.ijtsrd.com/papers/ijtsrd52833.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/52833/study-of-the-effect-of-optimized-hybrid-fiber-on-the-strength-characteristics-and-structural-performance-of-the-concrete/sanjeev-suman
Enhancing Compressive and Flexural Strength of High Strength Concrete using S...IRJET Journal
The document discusses using steel and polypropylene fibers to enhance the compressive and flexural strength of high-strength concrete (HSC). It aims to investigate how adding steel fiber at proportions of 0.5%, 1%, and 1.5%, and polypropylene fiber at 0.25%, 0.50%, 0.75%, and 1% affects the compressive and flexural strength of HSC. Previous studies found that both steel and polypropylene fibers improve the mechanical properties of HSC, with higher fiber content leading to greater improvements. The document outlines the materials used to prepare HSC specimens, including cement, fine aggregate, and coarse aggregate.
Strength and behavior of innovative composite columnsIAEME Publication
This document describes an experimental study that tested 18 reinforced concrete columns with various innovative composite reinforcements under concentric compression loads. The columns were made with concrete reinforced with welded steel mesh, expanded steel mesh, fiberglass mesh, or Tensar mesh. Testing results showed that columns with these composite reinforcements achieved higher strength, greater crack resistance, higher ductility, and improved energy absorption compared to a control reinforced concrete column. Finite element analysis also agreed with the experimental test results. The study demonstrated the effectiveness of using innovative composite materials to reinforce concrete columns.
This document summarizes a study on the effects of adding admixtures and synthetic polymer fibers to concrete of different strengths. Testing of 54 concrete cylinders showed that the addition of admixtures and fibers increased compressive strength more than reference concrete, allowing a reduction in cement percentage. The highest strengths were achieved with admixture-added concrete, followed by fiber-added and normal concrete. While fibers did not significantly boost strength on their own, the combination of admixtures and fibers promises sustainable, durable concrete structures.
Impact On Abrasion Resistance of Concrete Using M-sand with Polypropylene and...IRJET Journal
This document discusses a study investigating the effect of using manufactured sand (m-sand) as a partial replacement for river sand in concrete, along with the addition of steel and polypropylene fibers, on the abrasion resistance and compressive strength of concrete. Testing found that replacing 60% of river sand with m-sand improved compressive strength by 16% and abrasion resistance by 23-30%. The optimum dosages were found to be 1% steel fibers by volume and 1.5kg/m3 of polypropylene fibers. A strong correlation was observed between higher compressive strength and lower abrasion loss. The study concludes that m-sand can effectively replace river sand, and the addition of fibers, particularly
IRJET- Experimental Investigation of Steel Fiber Reinforced Concrete with Par...IRJET Journal
This document discusses an experimental investigation into steel fiber reinforced concrete with partial replacement of coarse aggregate by cupola slag. The following key points are discussed:
1. Steel fibers were added to concrete to improve properties like strength and ductility. Cupola slag, a byproduct from cast iron manufacturing, was used to partially replace coarse aggregate.
2. Tests were conducted to study the effect of adding hooked steel fibers and varying amounts of cupola slag on the mechanical properties of concrete, including compressive strength, split tensile strength, and flexural strength.
3. A literature review presented research on the use of steel fibers to enhance concrete properties and studies investigating the use of cupola slag as a partial replacement for
Shear Behavior of Reinforced Concrete Beams Contained Nano Silica and Strengt...IRJET Journal
This document summarizes a study on the shear behavior of reinforced concrete beams containing nano silica and strengthening with epoxy injection. Eight concrete mixes were tested with different nano silica contents (0, 2, 4, 6%) and cement amounts to achieve compressive strengths of 30, 45, and 60 MPa. Beams were internally injected with epoxy in the shear zone and tested. Results showed beams with 4% nano silica performed best in terms of ultimate load and ductility. Epoxy injection increased ultimate load by up to 7.4% and absorbed energy by up to 38.6% for most beams. The study evaluated how nano silica and epoxy injection affect the shear behavior and properties
Experimental investigation on Controlled Permeable Formwork Liner in steel fi...IRJET Journal
This document summarizes an experimental study that investigated the effects of using a controlled permeable formwork (CPF) liner and adding steel fibers on the mechanical properties of M20 grade concrete. Specimens were prepared with and without CPF liner and with 0%, 1%, and 2% steel fibers by weight. At 28 days, compressive strength, split tensile strength, rebound hammer, ultrasonic pulse velocity, and water absorption tests were performed. The results showed that concrete with CPF liner and steel fibers had higher strength and durability properties compared to normal concrete without CPF liner or steel fibers. In particular, the CPF liner produced a denser, less porous surface zone in the concrete that improved its dur
The precast channel system (U-Ditch) is one of the innovations of precast concrete
designated as a channel for drainage and irrigation systems. The U-Ditch must have
sufficient bending capacity to carry a major load due to ground pressure. However,
the addition of wall thickness will lead to the heavy construction product. Therefore, a
new product innovation was developed in this study, where the wall thickness was
reduced and strengthened using fiber reinforced polymer (FRP). In these regards, this
study aims to investigate the effect of FRP strengthening on the behavior of precast
channel systems. Three types of specimens were tested in this study. Type N was
normal U-ditch which without a reduction of wall thickness. Type C was U-ditch with
a reduction of wall thickness (corrugate). Type CF was U-ditch with a reduction of
wall thickness (corrugate) and strengthened using fiber reinforced polymer (FRP).
The dimension of all specimens was 500x500x1000 mm3. The specimens were tested
based on Japan Industrial Standard (JIS). The results indicated that the weight
reduction can be achieved by reducing the wall thickness in the area between the main
reinforcement. However, it reduced the bending capacity of the wall. The
strengthening using FRP sheet in the thickness reduction section was effectively to
increase the bending capacity of wall, which had relatively the same with Type N
(normal). Finally, all the specimens failed due to the flexural cracks around hook area
of the precast channel
IRJET- Functionally Graded Concrete: An Experimental AnalysisIRJET Journal
This document summarizes an experimental analysis of functionally graded concrete. Functionally graded concrete consists of concrete with varying material properties or compositions across its structure to optimize performance. The study investigated concrete mixtures with partial cement replacement using dolomite powder. Specimens including cubes, cylinders, and beams were cast with normal concrete in the compression zone and concrete with 20-40% dolomite-replaced cement in the tension zone. Testing showed that mixtures with 30% dolomite replacement and an interface at 75mm from the bottom achieved the highest compressive strength. Flexural strength was also highest for mixtures with a graded interface. The results indicate that functionally graded concrete is a promising alternative to conventional concrete.
Similar to Modelling of sample beam concrete when added fiber glass to know flexural strength (20)
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Bronchopulmonary cancers are common cancers with a poor prognosis. It is the leading cause of death by cancer in Algeria and in the world. Behind this unfavorable prognosis hides numerous disparities according to age, sex, and exposure to risk factors, ranking 4th among incident cancers and developing countries including Algeria, all sexes combined. It ranks 2nd cancers in men and 3rd among women. Whatever the age observed, the incidence of this cancer is higher in men than in women, however the gap is narrowing to the detriment of the latter. The results of scientific research agree to relate trends in incidence and mortality rates to tobacco consumption, including passive smoking. Furthermore, other risk factors are mentioned such as exposure to asbestos in the workplace or to radon for the general population, or even genetic predisposition. However, the weight of these etiological and/or predisposing factors is in no way comparable to that of tobacco in the genesis of lung cancer and the resulting mortality. We provide a literature review in our article on the descriptive and analytical epidemiology of lung cancer.
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Haphazard and low soil fertility, low yielding verities and poor agronomic practices are among the major factors constraining onion production in the central rift valley of Ethiopia. Therefore, a field experiment was conducted in East Showa Zone of Adami Tulu Jido Combolcha district in central rift valley areas at ziway from October 2021 to April 2022 to identify appropriate rate of NPSB fertilizer and planting pattern of onion varieties. The experiment was laid out in split plot design of factorial arrangement in three replications. The main effect of NPSB blended fertilizer rates and varieties (red coach and red king) significantly (p<0.01) influenced plant height, leaf length, leaf diameter, leaf number and fresh leaf weight, shoot dry matter per plant, and harvest index. Total dry biomass, bulb diameter, neck diameter, average fresh bulb weight, bulb dry matter, marketable bulb yield, and total bulb yield were significantly (p<0.01) influenced only by the main effect of NPSB blended fertilizer rates. In addition, unmarketable bulb yield was statistically significantly affected (p≥0.05) by the blended fertilizer rates and planting pattern. Moreover, days to 90% maturity of onion was affected by the main factor of NPSB fertilizer rate, variety and planting pattern. The non-fertilized plants in the control treatment were inferior in all parameters except unmarketable bulb yield and harvest index. Significantly higher marketable bulb yield (41 t ha-1) and total bulb yield (41.33 t ha-1) was recorded from 300 kg ha-1 NPSB blended fertilizer rate applied. Double row planting method and hybrid red coach onion variety had also gave higher growth and yields. The study revealed that the highest net benefit of Birr, 878,894 with lest cost of Birr 148,006 by the combinations of 150 kg blended NPSB ha-1 with double row planting method (40cm*20cm*7cm) and red coach variety which can be recommendable for higher marketable bulb yield and economic return of hybrid onion for small scale farmers in the study area. Also, for resource full producers (investors), highest net benefit of Birr 1,205,372 with higher cost (159,628 Birr) by application of 300 kg NPSB ha-1 is recommended as a second option. However, the research should be replicated both in season and areas to more verify the recommendations.
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The goal of neuroprotection is to shield neurons against damage, whether that damage is caused by environmental factors, pathogens, or neurodegenerative illnesses. Inhibiting protein-based deposit buildup, oxidative stress, and neuroinflammation, as well as rectifying abnormalities of neurotransmitters like dopamine and acetylcholine, are some of the ways in which medicinal herbs have neuroprotective effects [1-3]. This review will focus on the ways in which medicinal herbs may protect neurons.
A phytochemical and pharmacological review on canarium solomonenseAI Publications
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Breast hamartoma is a rare, well-circumscribed, benign lesion made up of a variable quantity of glandular, adipose and fibrous tissue. This is a lesion that can affect women at any age from puberty. With the increasingly frequent use of imaging methods such as mammography and ultrasound as well as breast biopsy, cases of hamartoma diagnosed are increasing. The diagnosis of these lesions is made by mammography. The histological and radiological aspects are variable and depend on its adipose tissue content. The identification of these lesions is important in order to avoid surgical excisions. We report radio-clinical and pathological records of breast hamartoma.
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2. AL-obaidi and N.lenovich / Modelling of sample beam concrete when added fiber glass to know flexural strength
www.aipublications.com Page | 31
One way to overcome the beam problems is to reinforce
them. Reinforcement can be by adding fibers, among
which the addition of FRP has attracted a lot of attention,
which is often used to increase the bearing capacity of
reinforced concrete beams[9,10].
Ashraf Abdel-Qader and others [11] studied the effect of
adding iron fibers on the crack-bending behavior of
concrete beams[12]. Burt took samples with dimensions
(100 x 200 x 1000 mm) and their results showed the
positive effect of adding this type of fiber on reducing the
number and width of cracks in the bending area, in
addition to increasing the load of the first crack and
reducing the deflection values. G.M. SadiqulIslam [13,14]
also showed in a study published on the bending behavior
of reinforced concrete beams with iron fibers that the
presence of these fibers enabled the change of the fracture
pattern to be more ductile than it was in ordinary concrete
samples, and it also had a clear effect on increasing the
fracture strength, as it was conducted Kang et al.
[15,16,17] studied the bending behavior of iron fiber
reinforced concrete beams, and the results of this study
recorded an increase from 30% to 200% in bending
strength and strength when iron fibers were added with a
volume ratio of 0.5% and 0.75%, respectively. As for the
researcher Alton and others [18,19,20], they studied the
effect of adding iron fibers on the mechanical properties of
concrete beams, and they concluded that both the
maximum loads[21,22]
The bending strength of the beams has increased
significantly with the addition of iron fibres. This research
aims to study the structural behavior of reinforced concrete
beams and the properties of concrete containing different
volumetric ratios of iron fibers (0.5%-1.5%-2.5%)[23]
II. MATERIAL AND METHOD
In this study, glass fibers were relied on to know the
bending behavior test in reinforced concrete beams, where
the forties were collected. All laboratory analyzes related
to disease resistance were conducted, in addition to
knowing the bending behavior to concrete beams in
engineering laboratories specialized in conducting tests in
Baghdad governorate.
In this study, fiberglass was used to test the bending
behavior of reinforced concrete beams, where the forties
were collected. All laboratory analyzes related to disease
resistance, in addition to knowing the bending behavior of
concrete beams, were conducted in engineering
laboratories specialized in conducting examinations in
Baghdad governorate.
Glass fibers were added in different proportions (0.5%-
1.5%-2.5%) and the samples were distributed on (control
sample - and 3 samples to which fibers were added in
different proportions with dimension1000mmlength -150
width-150height ). According to the Iraqi specifications,
fine aggregates were used from the quarries of the city of
Baghdad, and coarse aggregates with a size of 5-19.5mm
were used and reinforced concrete was a diameter of 12
mm , and secondary with 8mm
The weights of the materials used in the concrete mix in
unit KG/M3 were as follows. (900 , water 540, coarse
aggregate, 4260, fine aggregate 2160)
The tests applied in this experiment were based on the
discipline positioning test at the age of 28 days, in which
the load is graded gradually at a constant rate of 9 kN/min
until collapse. The L.V.D.T deviation reader was relied
upon until a failure occurred the sample
Fig.1- Concrete beam load testing device
III. RESULTS
Fig.2- result of compressive strength BY unit MPA
3. AL-obaidi and N.lenovich / Modelling of sample beam concrete when added fiber glass to know flexural strength
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Table 1- The percentage increase in compressive strength compared to the control group
additive percentage fiber increase BY MPA Increase BY P% P Value
0.50% 6.1 25 0.001
1 8.8 36.06 0.001
1.5 5.4 9.2 0.056
Table 2-Tensile strength results for concrete beams
Tensile strength MPA Increase by MPA Increase BY p% P value
Control sample 2.6 0 0 0.00
0.5% 4.1 1.5 57.6 <0.001
1% 4.89 2.29 88.07 <0.001
1.5% 5.3 2.7 103.8 <0.001
Fig.3- relationship between flexural and load
4. AL-obaidi and N.lenovich / Modelling of sample beam concrete when added fiber glass to know flexural strength
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Fig 4 –modeling of sample beam concrete according blender program
IV. DISCUSSION
In this study, 4 samples were collected and all
laboratory tests were performed on concrete beam in
laboratories in Baghdad, Iraq. The necessary tests in this
study were compressive strength in addition to tensile
strength test. Concrete beams were also modelled to know
the flexural behaviour relying on the modelling of concrete
beams on the blender 2021 program.
In this study, the dimensions of the concrete cameras
were 1000 mm long, 150 mm wide, 150 mm height , and
the percentage of added glass fibres was 0.5%-1-1.5%,
respectively from the weight of the concrete mixture.
The results shown in Table 2 showed that the
compressive strength test of concrete beams had increase
compared to the control group when added 1.5% with
9.2%.
It was noted that there were statistical differences
between samples to which glass concrete fibres were
added with the control group at <0.001 p value.
The tensile strength test was carried out to the concrete
5. AL-obaidi and N.lenovich / Modelling of sample beam concrete when added fiber glass to know flexural strength
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cameras with the same added amounts of fibres, and a
significant development in tensile strength was observed
when fibres were added by 0.5 % with 57.6% - When
fibres were added by 1%, the tensile strength increased to
4.89 MPA, which means it increased by 88.07, and the
tensile strength achieved the highest value increase when
glass fibres were added with 1.5% to become 5.3 MPA and
this indicates the existence of a direct relationship between
the percentage increase in tensile strength and the added
glass fibres. We infer this by the presence of a direct
statistical relationship when tested tensile strength with p
value <0.001 as shown in Table 2.
It shows the results of the effect of adding iron fibers at
different rates on the curve of the relationship between the
load and the deviation of the research samples. Through
these results, it is generally noted that samples containing a
higher percentage of fibers than the previous ones
achieved greater results in the values of the collapse load
and lower results in the values of deviation, whether in the
stage before or after the first crack. During the pre-
cracking stage and at the load (10 kN), the comparison
between the results showed that the deviation value
decreased by 30%, when iron fibers were added by 1.5%
to concrete. As for the post-cracking stage and during
pregnancy (45 kN), the comparison of the results showed
that the deviation value decreased by a greater percentage,
reaching 60% in the sample containing 1.5% of glass
fibres. These results confirm the great role of glass fibres
in reducing cracks, limiting their width, and increasing the
strength of the concrete section in the post-cracking stage.
V. CONCLUSION
1. The fibers in concrete help reduce shrinkage
cracks, increase strength, increase energy absorption, and
reduce dangerous cracks at high temperatures.
2. beam design uses knowledge of its primary
tensile properties, compressive, bending and shear forces,
combined with estimates of behaviour under secondary
loading effects such as creep, thermal response and
moisture movement.
3. The addition of fibers to the concrete contributed
to reducing the occurrence of cracks and their expansion
by creating bonding bridges within the cracks themselves,
which enabled it to continue to provide additional
resistance to the structural section even after the crack.
4. The results of the three-dimensional modelling of
concrete beams using the blender program appeared Great
accuracy and convergence compared to the laboratory
results of the research samples
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