This document discusses the tribological properties of polytetrafluoroethylene (PTFE) composites filled with carbon fiber, molybdenum disulfide (MoS2), and bronze reinforcement. It begins with an abstract that introduces the materials studied and their tribological behavior. It then provides background on tribology and discusses the objectives of studying PTFE composites, which include suggesting a self-lubricating material for sugar mill applications. The experimental methodology, observations and results are presented, showing the effect of various composites on wear and friction over time under different loads and speeds. The conclusions drawn are that initial wear is higher for composites but stabilizes over time, friction initially increases but then remains
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This document discusses an experimental investigation of tin-based babbitt composite materials. Babbitt alloys are commonly used for manufacturing journal bearings but have relatively low fatigue strength and moderate wear resistance. To address these limitations, silicon carbide particles are incorporated into the babbitt matrix at concentrations of 2%, 4%, and 6% using stir casting. Wear tests are conducted on the composite materials and pure babbitt under varying loads and speeds. The results show that a composite with 4% SiC exhibits the lowest wear compared to the other materials tested. Reinforcing babbitt with silicon carbide improves its mechanical properties and makes it more suitable for use in bearings with high operating stresses.
IRJET- Experimental Investigation and Optimization of Wear Characteristics of...IRJET Journal
This document experimentally investigates the wear characteristics of cerium oxide (CeO2) nanoparticle-based nanolubricant under boundary lubrication conditions. Pin-on-disc tests were conducted using diesel engine oil with 0.2-0.4% CeO2 nanoparticles added. Taguchi and Response Surface Methodology (RSM) designs of experiment were used to analyze the effect of nanoparticle concentration, load, and sliding velocity on wear rate. RSM optimization found 0.3111% nanoparticle concentration, 5kg load, and 6m/s sliding velocity gave the minimum wear rate. Cerium oxide nanolubricant showed significantly lower wear than the base oil alone under these optimum conditions.
This document summarizes a study on the abrasive wear behavior of glass fiber reinforced polyester composites filled with graphite particles. Samples were fabricated with 0%, 15%, and 30% graphite content by compression molding. Testing found that wear increased with load for all samples, but the 15% graphite composite exhibited the lowest wear. Adding graphite improved the self-lubricating properties and wear resistance compared to the unfilled composite, with an optimal amount at 15% rather than 30% graphite content.
Investigation of Tribological Properties of Cotton Seed Oil By Adding MoS2 an...IRJET Journal
This document summarizes a study investigating the tribological properties of cotton seed oil with the addition of MoS2 and SiO2 nanoparticles. The study used a four-ball tester to measure the coefficient of friction and wear scar diameter of cotton seed oil samples with varying concentrations of MoS2 and SiO2 additives. The results showed that adding 1% SiO2 nanoparticles reduced the coefficient of friction and wear scar diameter the most compared to other additive concentrations. Therefore, SiO2 nanoparticles show potential for improving the lubricating and anti-wear properties of cotton seed oil.
IRJET- An Experimental Study on Strength and Durability Characteristics o...IRJET Journal
This study investigated the strength and durability characteristics of concrete made with glass powder as a partial replacement for cement. Glass powder was used to replace cement at various percentages from 0-30%. Tests were performed to determine the workability, compressive strength, split tensile strength, and flexural strength of the concrete mixtures at 7 and 28 days. Additional tests examined the durability of the mixtures when cured in saltwater and magnesium sulfate solutions. The results showed that replacing up to 15% of cement with glass powder improved the mechanical properties of the concrete. Replacing more than 15% resulted in decreased strengths. The study concluded that using waste glass powder in concrete is economically beneficial and can produce superior concrete.
This document summarizes research into the abrasive wear behavior of polytetrafluoroethylene (PTFE) filled e-glass fiber reinforced polyester composites. Three composite materials were developed: an unfilled e-glass/polyester composite and two composites with 10% and 20% PTFE by weight. The composites were tested using a Ducom abrasion tester at different loads and cycles to measure wear. The results showed that the 10% PTFE filled composite exhibited the least wear compared to the 20% filled and unfilled composites. Adding an appropriate amount of PTFE improved the self-lubricating properties but higher PTFE content reduced wear resistance due to weaker bonding between the
IRJET- Determination of Fracture Parameters of Self-Compacting Lightweight Co...IRJET Journal
This document presents a study on determining the fracture parameters of self-compacting lightweight concrete (SCLC) considering the maximum aggregate size, using the work of fracture method. Three-point bending tests were performed on notched beam specimens with varying coarse aggregate sizes. Test results showed that as coarse aggregate size increased, the fracture energy of the specimens also increased, which can be explained by changes in fractural dimensions. Parameters like fracture energy, fracture zone length, and crack-tip opening displacement were evaluated to characterize the fracture behavior of SCLC.
Effect of Limewater on the Properties of Binary Blended Cementitious CompositeIRJET Journal
This document studied the effect of limewater on the properties of cement mixtures containing silica fume. Tests were conducted on cement mixtures with 0-50% replacement of cement with silica fume, and mixing with either water or saturated limewater. Using limewater increased both initial and final setting times compared to water. Compressive strength, tensile strength, and flexural strength were highest with 30% silica fume replacement and limewater mixing, showing increases of 34.7%, 60.96%, and 46.91% respectively over the control mixture without silica fume or limewater at 28 days. In conclusion, limewater improved the mechanical properties of cement mixtures with 30% silica fume replacement.
Experimental Investigation On Tin Based Babbitt Composite MaterialIRJET Journal
This document discusses an experimental investigation of tin-based babbitt composite materials. Babbitt alloys are commonly used for manufacturing journal bearings but have relatively low fatigue strength and moderate wear resistance. To address these limitations, silicon carbide particles are incorporated into the babbitt matrix at concentrations of 2%, 4%, and 6% using stir casting. Wear tests are conducted on the composite materials and pure babbitt under varying loads and speeds. The results show that a composite with 4% SiC exhibits the lowest wear compared to the other materials tested. Reinforcing babbitt with silicon carbide improves its mechanical properties and makes it more suitable for use in bearings with high operating stresses.
IRJET- Experimental Investigation and Optimization of Wear Characteristics of...IRJET Journal
This document experimentally investigates the wear characteristics of cerium oxide (CeO2) nanoparticle-based nanolubricant under boundary lubrication conditions. Pin-on-disc tests were conducted using diesel engine oil with 0.2-0.4% CeO2 nanoparticles added. Taguchi and Response Surface Methodology (RSM) designs of experiment were used to analyze the effect of nanoparticle concentration, load, and sliding velocity on wear rate. RSM optimization found 0.3111% nanoparticle concentration, 5kg load, and 6m/s sliding velocity gave the minimum wear rate. Cerium oxide nanolubricant showed significantly lower wear than the base oil alone under these optimum conditions.
This document summarizes a study on the abrasive wear behavior of glass fiber reinforced polyester composites filled with graphite particles. Samples were fabricated with 0%, 15%, and 30% graphite content by compression molding. Testing found that wear increased with load for all samples, but the 15% graphite composite exhibited the lowest wear. Adding graphite improved the self-lubricating properties and wear resistance compared to the unfilled composite, with an optimal amount at 15% rather than 30% graphite content.
Investigation of Tribological Properties of Cotton Seed Oil By Adding MoS2 an...IRJET Journal
This document summarizes a study investigating the tribological properties of cotton seed oil with the addition of MoS2 and SiO2 nanoparticles. The study used a four-ball tester to measure the coefficient of friction and wear scar diameter of cotton seed oil samples with varying concentrations of MoS2 and SiO2 additives. The results showed that adding 1% SiO2 nanoparticles reduced the coefficient of friction and wear scar diameter the most compared to other additive concentrations. Therefore, SiO2 nanoparticles show potential for improving the lubricating and anti-wear properties of cotton seed oil.
IRJET- An Experimental Study on Strength and Durability Characteristics o...IRJET Journal
This study investigated the strength and durability characteristics of concrete made with glass powder as a partial replacement for cement. Glass powder was used to replace cement at various percentages from 0-30%. Tests were performed to determine the workability, compressive strength, split tensile strength, and flexural strength of the concrete mixtures at 7 and 28 days. Additional tests examined the durability of the mixtures when cured in saltwater and magnesium sulfate solutions. The results showed that replacing up to 15% of cement with glass powder improved the mechanical properties of the concrete. Replacing more than 15% resulted in decreased strengths. The study concluded that using waste glass powder in concrete is economically beneficial and can produce superior concrete.
This document summarizes research into the abrasive wear behavior of polytetrafluoroethylene (PTFE) filled e-glass fiber reinforced polyester composites. Three composite materials were developed: an unfilled e-glass/polyester composite and two composites with 10% and 20% PTFE by weight. The composites were tested using a Ducom abrasion tester at different loads and cycles to measure wear. The results showed that the 10% PTFE filled composite exhibited the least wear compared to the 20% filled and unfilled composites. Adding an appropriate amount of PTFE improved the self-lubricating properties but higher PTFE content reduced wear resistance due to weaker bonding between the
IRJET- Determination of Fracture Parameters of Self-Compacting Lightweight Co...IRJET Journal
This document presents a study on determining the fracture parameters of self-compacting lightweight concrete (SCLC) considering the maximum aggregate size, using the work of fracture method. Three-point bending tests were performed on notched beam specimens with varying coarse aggregate sizes. Test results showed that as coarse aggregate size increased, the fracture energy of the specimens also increased, which can be explained by changes in fractural dimensions. Parameters like fracture energy, fracture zone length, and crack-tip opening displacement were evaluated to characterize the fracture behavior of SCLC.
Effect of Limewater on the Properties of Binary Blended Cementitious CompositeIRJET Journal
This document studied the effect of limewater on the properties of cement mixtures containing silica fume. Tests were conducted on cement mixtures with 0-50% replacement of cement with silica fume, and mixing with either water or saturated limewater. Using limewater increased both initial and final setting times compared to water. Compressive strength, tensile strength, and flexural strength were highest with 30% silica fume replacement and limewater mixing, showing increases of 34.7%, 60.96%, and 46.91% respectively over the control mixture without silica fume or limewater at 28 days. In conclusion, limewater improved the mechanical properties of cement mixtures with 30% silica fume replacement.
IRJET- Design and Analysis of Composite Top Frame of Hydraulic Valve Test...IRJET Journal
This document summarizes a study on designing and analyzing a composite top frame for a hydraulic valve test bench. The study involved manufacturing an epoxy/E-glass composite frame using hand layup. Finite element analysis was conducted using ANSYS to compare the stress and deformation of the composite frame to a conventional steel frame under the same loading conditions. Analytical calculations were also performed to calculate bending stress, shear stress, moment of inertia, and total deformation of both frame materials. The results from the numerical analysis were validated by comparing them to the analytical calculations. The goal of the study was to investigate if a composite frame could withstand the same loads as a steel frame but with reduced weight, thickness, and resistance to corrosion.
CFD INVESTIGATION OF MECHANICAL SEAL FOR IMPROVE THERMAL PROPERTY BY USING D...Er Sandeep Duran
The paper constitutes the method to improve the heat transfer rate in mechanical seal for decreasing the interface temperature of the seal face. Different factors that affect the performance of mechanical seal are friction, wear and its thermal characteristics. Concept of Fourier’s law of heat conduction through cylindrical surfaces is used for optimizing the heat transfer rate. Composite material for mating ring with different thermal conductivity is used to increase the heat transfer rate to enhance the seal performance.
Cfd investigation of mechanical seal for improve thermal property by using di...eSAT Journals
This document summarizes a study that used computational fluid dynamics (CFD) to investigate improving the thermal properties of mechanical seals by using composite materials in the mating ring. The study found that a mating ring made of a composite of carbon graphite and silicon carbide more effectively dissipated heat compared to a ring made of just carbon graphite. Specifically, the interface temperature of the composite ring was lower, indicating increased heat transfer. This suggests composite materials could enhance seal performance by reducing temperatures.
Effect of short glass fiber and fillers on dry sliding wear behaviour of ther...IAEME Publication
The document summarizes research on the effect of short glass fiber and fillers on the dry sliding wear behavior of thermoplastic copolyester elastomer composites. Experiments were conducted using a Taguchi design of experiments with variables including filler content, sliding velocity, and sliding distance. Analysis of variance was used to determine the most influential parameters on specific wear rate. The experimental results showed that filler content had the greatest effect on specific wear rate, followed by sliding distance, while sliding velocity showed a negligible effect. Examination of worn surfaces revealed features associated with adhesion of the matrix to fibers as well as microcracking and debris formation.
IRJET-Infrared Thermal Face Recognition under Temporal VariationIRJET Journal
This document presents the results of an experimental study on the strength properties of concrete with the addition of nanosilica. Cubes of M20 and M30 grade concrete were produced with 0%, 0.5%, 1%, 1.5%, 2%, and 2.5% partial replacement of cement with nanosilica. The cubes were tested for compressive strength and workability after 7 and 28 days of curing. For both grades, compressive strength initially decreased with 0.5% nanosilica but then increased up to 2% replacement, above which it decreased again. The 2% replacement provided the highest 7 and 28-day compressive strengths, increasing up to 15.9% and 18.7
IRJET - Experimental and Analytical Study on Partial Replacement of Coarse Ag...IRJET Journal
This document presents the results of an experimental and analytical study on using broken clay tiles as a partial replacement for coarse aggregate in concrete. Tests were conducted to evaluate the workability and compressive strength of concrete mixes with 0-30% tile replacement. The 25% replacement mix achieved 95% of the compressive strength of normal concrete. Flexural beam specimens were also cast and tested to failure. Cracks developed more slowly in the 25% tile beams, and their ultimate load capacity was increased by 5.62% compared to normal beams. An ANSYS model was created to analyze the beams, with results matching the experimental data within 3.57% for ultimate load. The study concluded broken tiles can be used to partially replace coarse aggregate
BEHAVIOR OF CONCRETE WITH PARTIAL REPLACEMENT OF C- AGGREGATES BY GRANULATED ...IRJET Journal
This document summarizes a study on the behavior of concrete with partial replacement of coarse aggregates by granulated rubber. Tests were performed on M25 grade concrete with 0%, 2.5%, 5%, 7.5%, 10%, 12.5%, and 15% replacement of coarse aggregates by rubber aggregates, with and without a superplasticizer. Compression, split tensile, and flexural tests were conducted on cubes, cylinders, and beams at 7 and 28 days. The results showed replacement of up to 7.5% rubber aggregates is permissible, with higher replacements resulting in decreased strength. Therefore, partial replacement of coarse aggregates with granulated rubber up to 7.5% is feasible.
Tribological Analysis of TiO2 Filled Polymer Matrix CompositesIRJET Journal
This document summarizes a study on titanium dioxide (TiO2) filled epoxy polymer matrix composites. Epoxy composites containing 0-30% TiO2 by weight were produced. Testing showed that adding TiO2 improved the composites' mechanical properties, erosion resistance, and microhardness. Maximum hardness and erosion resistance occurred with 30% TiO2. Scanning electron microscopy revealed cracks and craters on eroded surfaces. Taguchi analysis and artificial neural networks were used to model erosion rate based on impact velocity, angle, erodent size, temperature, and TiO2 content. Both methods predicted erosion rates with errors within 11%. In conclusion, TiO2 is an effective reinforcing filler to improve epoxy composite
IRJET-Surface Roughness Modeling of Titanium Alloy GrindingIRJET Journal
This document presents a study on modeling surface roughness in the grinding of titanium alloy. It aims to develop a predictive surface roughness model that relates surface roughness values to process variables like speed and depth of cut. An analytical model is developed considering factors like elastic deflections, plowing effects, and thermal effects. MATLAB simulations are also used to model the grinding wheel profile and ground surface to directly predict surface roughness. Experimental grinding tests will be conducted to validate the results from the analytical model and simulations.
IRJET- Improvement of Lightweight Concrete by using Natural FibresIRJET Journal
This document summarizes research into improving the strength of lightweight concrete by adding natural fibers. Lightweight concrete was made by replacing 40% of aggregates with pumice stone and 40% of sand with pumice powder. Banana fibers were added in percentages from 0.1% to 0.4%. Testing found that compressive strength increased from 0.1% to 0.3% fiber content, but decreased after 0.3%, making 0.3% the optimum amount. The results indicate that simultaneously replacing aggregate and sand with pumice stone and powder is feasible for non-structural concrete members. Flexural and split tensile strength also increased with fiber addition.
IRJET - Strengthening of Beam using Engineered Cementitious CompositesIRJET Journal
1) The document studies the flexural strengthening of reinforced concrete beams using Engineered Cementitious Composites (ECC).
2) Five beam specimens were tested - one control beam and four beams strengthened with different ECC mixes. The ECC improved the load capacity and deformability of the beams.
3) The beam strengthened with ECC containing 50% ground granulated blast furnace slag showed the highest flexural strength and load capacity, demonstrating the benefits of ECC confinement for reinforced concrete beams.
IRJET- An Experimantal Investigation of Concrete with Artificial SandIRJET Journal
This document presents the results of an experimental investigation into the properties of concrete with artificial sand. Artificial sand is manufactured as an alternative to natural sand due to declining natural resources. The study involves testing concrete mixtures with varying percentages (0-100%) of artificial sand replacement at curing periods of 7, 14, and 28 days. Tests conducted include compressive strength, split tensile strength, flexural strength, shear strength, and non-destructive tests. The results show the compressive strength, split tensile strength, and flexural strength of concrete with 60-100% artificial sand meet or exceed the minimum specifications. This suggests artificial sand can be a viable replacement for natural sand in concrete.
IRJET- Optimum Design Parameters for Effective Moldability of Gas SensorIRJET Journal
This document discusses optimizing design parameters for effective molding of a gas sensor through mold flow simulation. It analyzes two trials of injection molding simulations to determine the optimal gate location, moldability, defects, and processing parameters. Trial 2 with parameters of 2 second fill time, 50°C mold temperature, 245°C melt temperature, and 55MPa injection pressure produced fewer sink marks, air traps, and weld lines than Trial 1. Trial 2 also had a faster cooling time of 8 seconds, making it the ideal design for molding the gas sensor part.
Strength studies on Graphene Concrete with JarofixIRJET Journal
1. The document presents research on using jarofix, an industrial waste byproduct from zinc manufacturing, to partially replace fine aggregate in concrete. Graphene oxide was also used to partially replace cement.
2. Compressive strength and split tensile strength tests were performed on concrete mixtures with 0-15% jarofix replacement and 0-0.15% graphene oxide replacement at curing periods of 28, 56, and 90 days.
3. Results showed increases in both compressive and split tensile strengths with the partial replacements compared to normal concrete, with the highest strengths achieved with a 10% jarofix and 0.10% graphene oxide replacement mixture. This indicates the potential for using industrial
IRJET- To Study the Impact of Crumb Rubber on Young’s Modulus of ConcreteIRJET Journal
The document studies the impact of adding crumb rubber to concrete as a replacement for fine aggregates. Concrete cubes were created with 0%, 5%, 10%, 15%, and 20% replacement of fine aggregates with crumb rubber. Compressive strength and Young's modulus were tested on the cubes at 7, 14, and 28 days. Results showed that compressive strength and Young's modulus decreased as rubber content increased. The 10% replacement mixture at 28 days provided sufficient strength while reducing waste rubber. In conclusion, crumb rubber can replace up to 10% of fine aggregates to utilize waste tires while providing concrete with some compressive strength and toughness.
Experimental Work on Graphene Concrete Using Jarofix as Partial Replacement f...IRJET Journal
This study experimentally investigates the effects of partial replacements of jarofix for fine aggregate and graphene oxide for cement on the compressive and split tensile strengths of concrete. Jarofix is an industrial waste from zinc manufacturing, while graphene oxide is added as a cement additive. Concrete mixtures were prepared with 0%, 5%, 10%, and 15% jarofix replacement and 0%, 0.05%, 0.10%, and 0.15% graphene oxide replacement and cured for 7 and 28 days. Testing showed that 10% jarofix replacement and 0.10% graphene oxide replacement concrete exhibited the highest compressive and split tensile strengths. The combined replacement of 10% jarofix and 0.10% graphene oxide further
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
IRJET- Characterization of Aluminum 7085/WC/Fly Ash Hybrid Composites for...IRJET Journal
This document summarizes research on aluminum 7085/tungsten carbide/fly ash hybrid composites for vibration applications. The composites were fabricated using stir casting and then characterized through various tests. Tensile, compression, and hardness tests showed improvements in properties with the addition of reinforcements. Tensile strength increased from 245 to 314 MPa while compressive strength increased from 1274 to 1522 MPa. Hardness also increased. Vibration testing found the composites effectively dampened vibrations compared to aluminum 7085 alone. The study demonstrated the fabrication of aluminum matrix composites with uniform dispersions of reinforcements via stir casting.
IRJET - Experimental Investigation of Carbon Fiber Reinforcement T-Stiffe...IRJET Journal
This document presents an experimental investigation comparing the structural performance of a T-stiffened composite panel with aluminum reinforcement to an existing T-stiffened aluminum panel. A finite element analysis was conducted to analyze the stress, strain, and reaction force of each panel under tensile loading. It was found that reinforcing the composite panel with carbon fiber layers improved its maximum reaction force from 23 kN to 81 kN compared to the aluminum-only panel. The composite reinforcement enhanced the panel's strength and stiffness.
Optimization of Cylindrical Grinding of Alloy Steel using desirability functi...IRJET Journal
1. The document summarizes research optimizing parameters for cylindrical grinding of alloy steel. It used Taguchi methods, response surface analysis, and grey relational analysis to determine optimal cutting speed, depth of cut, and feed rate to maximize material removal rate.
2. Analysis found depth of cut had the greatest influence on material removal rate, followed by cutting speed then feed rate. Confirmation tests found less than 1% error between predicted and experimental material removal rates, validating the models.
3. The optimized parameters were found to be a cutting speed of 1900 rpm, depth of cut of 0.06 mm, and feed rate of 0.04 mm/rev, achieving a maximum material removal rate of 2.816 g
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
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This document presents the results of an experimental and analytical study on using broken clay tiles as a partial replacement for coarse aggregate in concrete. Tests were conducted to evaluate the workability and compressive strength of concrete mixes with 0-30% tile replacement. The 25% replacement mix achieved 95% of the compressive strength of normal concrete. Flexural beam specimens were also cast and tested to failure. Cracks developed more slowly in the 25% tile beams, and their ultimate load capacity was increased by 5.62% compared to normal beams. An ANSYS model was created to analyze the beams, with results matching the experimental data within 3.57% for ultimate load. The study concluded broken tiles can be used to partially replace coarse aggregate
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The document studies the impact of adding crumb rubber to concrete as a replacement for fine aggregates. Concrete cubes were created with 0%, 5%, 10%, 15%, and 20% replacement of fine aggregates with crumb rubber. Compressive strength and Young's modulus were tested on the cubes at 7, 14, and 28 days. Results showed that compressive strength and Young's modulus decreased as rubber content increased. The 10% replacement mixture at 28 days provided sufficient strength while reducing waste rubber. In conclusion, crumb rubber can replace up to 10% of fine aggregates to utilize waste tires while providing concrete with some compressive strength and toughness.
Experimental Work on Graphene Concrete Using Jarofix as Partial Replacement f...IRJET Journal
This study experimentally investigates the effects of partial replacements of jarofix for fine aggregate and graphene oxide for cement on the compressive and split tensile strengths of concrete. Jarofix is an industrial waste from zinc manufacturing, while graphene oxide is added as a cement additive. Concrete mixtures were prepared with 0%, 5%, 10%, and 15% jarofix replacement and 0%, 0.05%, 0.10%, and 0.15% graphene oxide replacement and cured for 7 and 28 days. Testing showed that 10% jarofix replacement and 0.10% graphene oxide replacement concrete exhibited the highest compressive and split tensile strengths. The combined replacement of 10% jarofix and 0.10% graphene oxide further
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
IRJET- Characterization of Aluminum 7085/WC/Fly Ash Hybrid Composites for...IRJET Journal
This document summarizes research on aluminum 7085/tungsten carbide/fly ash hybrid composites for vibration applications. The composites were fabricated using stir casting and then characterized through various tests. Tensile, compression, and hardness tests showed improvements in properties with the addition of reinforcements. Tensile strength increased from 245 to 314 MPa while compressive strength increased from 1274 to 1522 MPa. Hardness also increased. Vibration testing found the composites effectively dampened vibrations compared to aluminum 7085 alone. The study demonstrated the fabrication of aluminum matrix composites with uniform dispersions of reinforcements via stir casting.
IRJET - Experimental Investigation of Carbon Fiber Reinforcement T-Stiffe...IRJET Journal
This document presents an experimental investigation comparing the structural performance of a T-stiffened composite panel with aluminum reinforcement to an existing T-stiffened aluminum panel. A finite element analysis was conducted to analyze the stress, strain, and reaction force of each panel under tensile loading. It was found that reinforcing the composite panel with carbon fiber layers improved its maximum reaction force from 23 kN to 81 kN compared to the aluminum-only panel. The composite reinforcement enhanced the panel's strength and stiffness.
Optimization of Cylindrical Grinding of Alloy Steel using desirability functi...IRJET Journal
1. The document summarizes research optimizing parameters for cylindrical grinding of alloy steel. It used Taguchi methods, response surface analysis, and grey relational analysis to determine optimal cutting speed, depth of cut, and feed rate to maximize material removal rate.
2. Analysis found depth of cut had the greatest influence on material removal rate, followed by cutting speed then feed rate. Confirmation tests found less than 1% error between predicted and experimental material removal rates, validating the models.
3. The optimized parameters were found to be a cutting speed of 1900 rpm, depth of cut of 0.06 mm, and feed rate of 0.04 mm/rev, achieving a maximum material removal rate of 2.816 g
Similar to THE TRIBOLOGICAL PROPERTIES OF PTFE COMPOSITE FILLED WITH CARBON FIBER, MOS2, BRONZE REINFORCEMENT (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, Serbia
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
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.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.