This document discusses research into using marble dust powder as a partial replacement for cement in concrete. The research tested concrete mixtures with dolomitic marble dust powder from Rajsamand, India and calcitic marble dust powder from Makrana, India replacing cement at various percentages. The concrete mixtures were tested for compressive and tensile strength at 7 and 28 days. Results showed the dolomitic powder increased tensile strength more than compressive strength, while the calcitic powder increased compressive strength more. Both marble dust powders improved the concrete strengths compared to normal concrete, with 10% calcitic and 15% dolomitic powder providing optimum improvements. The research concluded the powders can be effectively used as a sustainable cement replacement in
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.
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.
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- Experimental Investigation on Partial Replacement of Dunite as CementIRJET Journal
This document presents an experimental investigation on partially replacing dunite as cement in concrete. Dunite is an igneous rock composed primarily of olivine. The study tested replacing cement with dunite powder at percentages of 0%, 20%, 40%, and 60%. Tests were conducted to determine the workability and compressive strength of the concrete mixtures at curing ages of 7, 14, and 28 days. The results showed that replacing up to 40% of cement with dunite powder improved the compressive strength of hardened concrete compared to normal concrete. The dunite powder provided strength enhancement and was found to be more economical than cement alone. Therefore, partially replacing cement with dunite powder has the potential to produce durable and high
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.
KLAREX RG 225 is an extremely clean carbon black grade with low PAH content, making it suitable for applications that require high quality such as weather stripping, hoses and profiles. It has excellent cleanliness and low grit, improving processing and dimensional stability. Mechanical properties and compression set of rubber compounds made with KLAREX RG 225 are comparable to international benchmarks. KLAREX RG 225 exhibits superior aging characteristics, retaining higher strain energy density and mechanical properties over time compared to competitors.
IRJET- Experimental Investigation and Optimization of Process Parameters in A...IRJET Journal
The document describes an experimental investigation into optimizing the process parameters of an abrasive water jet machine. It discusses using the Taguchi method to optimize parameters like abrasive flow rate, nozzle diameter, pressure, and standoff distance to maximize material removal rate and minimize kerf width. Experiments were conducted using an L9 Taguchi array to test different parameter levels. Analysis of variance and response tables were used to analyze the results and determine the most influential parameters, with abrasive flow rate found to have the biggest effect on material removal rate and all parameters found to have little effect on kerf width.
IRJET- Study on Sugarcane Bagasse Ash ConcreteIRJET Journal
The document presents a study on replacing cement with sugarcane bagasse ash in concrete. Sugarcane bagasse ash is an industrial waste product that causes environmental issues. The study tested replacing cement at 0%, 10%, 20%, and 30% ratios. Workability of the concrete decreased as replacement increased but compressive strength increased up to 20% replacement at 7 and 28 days compared to no replacement. The results indicate cement can be replaced by up to 20% sugarcane bagasse ash in concrete to reduce environmental impacts while maintaining strength.
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.
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.
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- Experimental Investigation on Partial Replacement of Dunite as CementIRJET Journal
This document presents an experimental investigation on partially replacing dunite as cement in concrete. Dunite is an igneous rock composed primarily of olivine. The study tested replacing cement with dunite powder at percentages of 0%, 20%, 40%, and 60%. Tests were conducted to determine the workability and compressive strength of the concrete mixtures at curing ages of 7, 14, and 28 days. The results showed that replacing up to 40% of cement with dunite powder improved the compressive strength of hardened concrete compared to normal concrete. The dunite powder provided strength enhancement and was found to be more economical than cement alone. Therefore, partially replacing cement with dunite powder has the potential to produce durable and high
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.
KLAREX RG 225 is an extremely clean carbon black grade with low PAH content, making it suitable for applications that require high quality such as weather stripping, hoses and profiles. It has excellent cleanliness and low grit, improving processing and dimensional stability. Mechanical properties and compression set of rubber compounds made with KLAREX RG 225 are comparable to international benchmarks. KLAREX RG 225 exhibits superior aging characteristics, retaining higher strain energy density and mechanical properties over time compared to competitors.
IRJET- Experimental Investigation and Optimization of Process Parameters in A...IRJET Journal
The document describes an experimental investigation into optimizing the process parameters of an abrasive water jet machine. It discusses using the Taguchi method to optimize parameters like abrasive flow rate, nozzle diameter, pressure, and standoff distance to maximize material removal rate and minimize kerf width. Experiments were conducted using an L9 Taguchi array to test different parameter levels. Analysis of variance and response tables were used to analyze the results and determine the most influential parameters, with abrasive flow rate found to have the biggest effect on material removal rate and all parameters found to have little effect on kerf width.
IRJET- Study on Sugarcane Bagasse Ash ConcreteIRJET Journal
The document presents a study on replacing cement with sugarcane bagasse ash in concrete. Sugarcane bagasse ash is an industrial waste product that causes environmental issues. The study tested replacing cement at 0%, 10%, 20%, and 30% ratios. Workability of the concrete decreased as replacement increased but compressive strength increased up to 20% replacement at 7 and 28 days compared to no replacement. The results indicate cement can be replaced by up to 20% sugarcane bagasse ash in concrete to reduce environmental impacts while maintaining strength.
Experimental Investigation on Concrete with Partial Replacement of Fine Aggre...IRJET Journal
This document presents the results of an experimental investigation on the strength properties of concrete with partial replacement of fine aggregate by granite powder. Granite powder, a byproduct of granite cutting, was used to replace fine aggregate at 10%, 15%, and 20% levels. Concrete mixtures were tested for compressive strength, split tensile strength, and flexural strength at 7, 14, and 28 days. The results showed that 10% replacement of fine aggregate provided optimal strength gains of 1-2% compared to conventional concrete. Higher replacement levels of 15% and 20% resulted in lower strength compared to conventional concrete. Therefore, the study recommends using 10% granite powder as a partial replacement of fine aggregate in concrete for improved strength and economical
IRJET- Review Paper on Use of Rise Husk Ash as Mineral Filler in Mastic AsphaltIRJET Journal
This document reviews the use of rice husk ash (RHA) as a mineral filler in mastic asphalt. RHA is an agricultural waste produced during rice milling that contains a high percentage of silica. The document discusses how RHA has properties suitable for use as a filler, including its specific gravity and amorphous silica content. The document then summarizes several past studies that investigated partially replacing traditional fillers like limestone with RHA in asphalt concrete mixtures. The results of these studies showed that RHA can improve the mechanical properties of asphalt mixtures, including increased Marshall stability. The document concludes that further investigation is needed on using RHA as a filler in mastic asphalt
IRJET- Experimental Investigation on Partial Replacement of Dunite as CementIRJET Journal
This document presents an experimental investigation on partially replacing dunite as cement in concrete. Dunite is an igneous rock composed primarily of olivine. The study tested replacing cement with dunite powder at percentages of 0%, 20%, 40%, and 60%. Tests were conducted to determine the workability and compressive strength of the concrete mixtures at curing ages of 7, 14, and 28 days. The results showed that replacing up to 40% of cement with dunite powder improved the compressive strength of hardened concrete compared to normal concrete. The dunite powder provided strength enhancement and was found to be more economical than cement alone. Therefore, partially replacing cement with dunite powder has the potential to produce durable and high
IRJET- Effect of Manufactured Sand on Mechanical Properties of ConcreteIRJET Journal
This study evaluated the effect of using manufactured sand (M-sand) from three different localities as a replacement for natural river sand in concrete. M-sand, cement, aggregate, and water were used to make concrete mixtures with a design strength of M20 grade. Specimens were tested for workability, compressive strength, split tensile strength, and flexural strength after 7, 14, and 28 days of curing. Test results found that concrete made with M-sand from Karur had 10.71% higher compressive strength, 12.15% higher split tensile strength, and 8.22% higher flexural strength compared to conventional concrete using river sand after 28 days. While workability was lower
IRJET- Experimental Investigation on Partial Replacement of Rice Husk Ash as ...IRJET Journal
The document experimentally investigates the use of rice husk ash as a partial cement replacement and coconut shell as a partial coarse aggregate replacement in producing lightweight concrete. Seven concrete mixes were prepared with coconut shell replacing conventional aggregates at 0%, 5%, 10%, 15%, 20%, and 25% and rice husk ash kept constant at 10% cement replacement. The mechanical and durability properties of the mixes were then evaluated. The results showed that the mix with 10% rice husk ash and 10% coconut shell replacement provided good mechanical properties while also offering the advantages of utilizing waste materials and reducing natural resource depletion, suggesting coconut shell could be a feasible aggregate replacement in concrete production.
Effect of Effective Porosity and Saturated Water Absorption on Rice Husk Ash-...IRJET Journal
- The document presents research on the effect of rice husk ash (RHA) and filtered sand (FS) on the durability properties of self-compacting concrete (SCC), specifically effective porosity and saturated water absorption.
- Concrete mixtures with varying replacements of cement by RHA (5-20%) and sand by FS (0-100%) were tested. Test results found that RHA-FS SCC exhibited better durability performance than conventional concrete, with lower effective porosity and saturated water absorption.
- The fresh properties of RHA-FS SCC, including slump flow, V-funnel time, and L-box blocking ratio, were found to meet EFNARC specifications for S
IRJET- A Study of Properties of Concrete Making Partial Replacement of Cement...IRJET Journal
This document discusses a study on the properties of concrete made by partially replacing cement with ceramic waste powder. Ceramic waste powder is used to replace cement at various percentages (5%, 10%, 15%, 20%, 25%, 30%) by weight. The compressive strength, split tensile strength, and flexural strength of the ceramic waste powder concrete mixtures are tested and compared to normal concrete at 7, 14, and 28 days. Results show that replacing 15% of cement with ceramic waste powder increases the compressive strength, split tensile strength, and flexural strength, making it a potential sustainable and cost-effective concrete material.
IRJET- Experimental Investigation of Effect of Neutralized Bauxite Waste (Neu...IRJET Journal
- The study investigates utilizing neutralized red mud (NRM), an industrial waste from aluminum production, as a partial replacement for cement in concrete.
- Concrete mixtures were made with 0%, 15%, 20%, and 25% replacement of cement with NRM. Testing showed compressive, tensile, and flexural strengths increased up to 20% replacement compared to normal concrete.
- The optimum replacement was found to be 20%, providing higher strengths than normal concrete and a 10.24% cost savings, showing potential economic and environmental benefits of NRM utilization in concrete.
IRJET- Mix Design Steps for Self-Compacting ConcreteIRJET Journal
This document outlines the steps for designing a self-compacting concrete mix, which differs from normal concrete mix design. It provides an example of designing Mix M3, which includes 70% ordinary Portland cement, 20% fly ash, and 10% rice husk ash. The design process involves calculating materials like coarse aggregate, fine aggregate, paste composition based on guidelines. Mix M3 specifications are provided that show the required quantities of cement, fly ash, rice husk ash, water, aggregates, and superplasticizer to achieve self-compacting properties. In conclusion, self-compacting concrete produces benefits over normal concrete like reducing labor, accelerating projects, and achieving better strength and durability, but requires proper mix proportioning
IRJET- An Experimental Study of Waste Tyres in Road ConstructionIRJET Journal
This document summarizes an experimental study on using waste tire powder as a bitumen modifier in road construction. Tire waste is a significant environmental issue as stockpiles pose fire and pollution hazards. Using tire powder could provide an eco-friendly use of waste. The study aims to develop a powdered rubber-modified bitumen that is cheaper and has improved properties over conventional bitumen. Aggregates and bitumen were tested according to standard procedures. Powdered rubber was obtained through a tire shredding and buffering process. The expectations are that a bitumen blend with powdered rubber as an additive will enhance strength and durability while reducing costs for more sustainable road construction.
IRJET- An Experimental Study of Waste Tyres in Road ConstructionIRJET Journal
This document summarizes an experimental study on using waste tire powder as a bitumen modifier in road construction. Tire waste is a significant environmental issue as stockpiles pose fire and pollution hazards. Using tire powder could provide an eco-friendly use of waste. The study aims to develop a powdered rubber-modified bitumen that is cheaper and provides better mechanical properties than conventional bitumen. Aggregates and base bitumen were tested according to standard procedures. Powdered rubber was obtained through a tire shredding and grinding process. The modified bitumens will be tested to evaluate the mechanical properties and potential cost savings compared to unmodified bitumen.
IRJET - Influence of CRMB in SMA by using Coir Fibre – An Experimental AnalysisIRJET Journal
This document analyzes the use of crumb rubber modified bitumen (CRMB) in stone mastic asphalt (SMA) pavement with the addition of coir fiber. Marshall mix design tests were conducted on SMA mixtures with varying percentages of CRMB and coir fiber. The results showed that mixtures with 7% bitumen content and 0.5% coir fiber exhibited the highest stability. Using CRMB and coir fiber in SMA improves the performance properties of the pavement such as increased strength and durability. The study demonstrated that CRMB-SMA pavement with optimized fiber content provides better performance compared to conventional pavement.
STUDY ON PROPERTIES STRENGTH OF CONCRETE BY PARTIAL REPLACEMENT OF FINE AGGRE...IRJET Journal
This document presents the results of a study on the properties and strength of concrete with partial replacement of fine aggregate with copper slag and cement with egg shell powder. Various strength tests were conducted on concrete mixtures with varying percentages of copper slag replacement of fine aggregate (0-30%) and egg shell powder replacement of cement (0-30%). The compressive strength, split tensile strength, and flexural strength of the concrete mixtures were tested and compared to normal concrete. The results showed that replacement of 15-25% copper slag and 15% egg shell powder generally improved the strength properties of M30 grade concrete. Workability was reduced but the optimum replacement levels enhanced strength compared to normal concrete. Thus, utilizing industrial wastes like copper slag
IRJET- Experimental Study on Concrete Adding with Granite Dust and Copper ScrapIRJET Journal
This study experimentally investigated the effects of partially replacing sand with granite dust and adding copper scrap to concrete. Concrete cubes and cylinders were cast with 25% replacement of sand by granite dust and addition of 1%, 1.5%, and 2% copper scrap. Testing found that compressive strength increased up to 3MPa and tensile strength increased significantly with the partial replacements compared to conventional concrete. Specifically, concrete with 25% granite dust and 1.5% copper scrap additions achieved the highest strengths. Thus, utilizing these wastes provided an economical and environmentally friendly concrete mix.
Investigation and Feasibility of Fly Ash and Rise Husk Ash and Quarry Sand fo...IRJET Journal
1) The study investigates using rice husk ash, fly ash, and quarry dust as partial replacements for standard sand in concrete mixtures.
2) The research aims to determine the performance of concrete with varying proportions of rice husk ash and fly ash, ranging from 30% fly ash and 0% rice husk ash up to 15% of each.
3) Numerous tests will be performed on the concrete mixtures including compressive strength, flexural strength, split tensile strength, and workability.
Effect on compressive strength of concrete with partial replacement of cement...IRJET Journal
This document evaluates the effect of partially replacing cement with municipal solid waste incinerator ash (MSWIA) on the compressive strength of concrete. Concrete cubes were produced by replacing cement at levels of 0%, 5%, 10%, 15%, 20%, 25%, and 30% with MSWIA. Testing found that compressive strength initially increased with MSWIA content up to 10%, reaching a maximum 28-day strength gain of 15.31% compared to the control. However, strengths decreased with replacements over 10% due to gas formation from chemical reactions involving aluminum in the ash. Thus, MSWIA can partially replace up to 10% of cement without compromising compressive strength.
Nil Waste Process Evolution for a Low Grade LimestoneIRJET Journal
This document summarizes research on developing a nil waste process for beneficiating a low-grade limestone using reverse cationic flotation.
The limestone sample contained mainly calcite and quartz and was analyzed to contain 45% CaO and 80% total carbonates. Grinding and flotation tests were conducted varying parameters like mesh of grind, collector type and dosage. The optimum conditions found were a mesh of grind of D80 400 microns, using 0.4 kg/t of cationic collector SOKEM565C. This produced a cement-grade concentrate assaying 90% total carbonates at an 88% weight yield. The non-float fraction assaying 80.30% Al
Study on Concrete by Replacing Cement by SCBA using 100% M-Sand as Fine Aggre...IRJET Journal
This document presents a study on concrete with partial replacement of ordinary Portland cement with sugarcane bagasse ash (SCBA) and complete replacement of river sand with manufactured sand (M-Sand) as fine aggregates. Standard specimens of M30 grade concrete with 0.45 water-cement ratio were tested at 3, 7, and 28 days to determine compressive strength, split tensile strength, and flexural strength. Test results found compressive strength increased up to 5% SCBA replacement and decreased with further replacement. 15% SCBA replacement achieved highest split tensile strength while flexural strength decreased with M-sand and SCBA. Results were comparable or favorable to conventional concrete, indicating suitability for structural use in buildings
Effect on Compressive and Tensile Strength of Cement Concrete Road Pavements ...IRJET Journal
This document summarizes a study on using iron ore tailings to partially replace fine aggregate in cement concrete used for road pavements. Concrete cubes and cylinders were cast with 0-50% replacement of sand with iron ore tailings. Compressive and flexural strength were tested at 7, 21, and 28 days. Results showed that compressive and flexural strength increased up to 30-40% replacement, but then started decreasing at 50% replacement. The study concluded that iron ore tailings can effectively replace a portion of fine aggregate in concrete, improving utilization of this waste material without compromising strength.
EXPERIMENTAL STUDY ON THE BEHAVIOR OFCONCRETE BY REPLACEMENT OF FINE AGGREGAT...IRJET Journal
- The document presents the results of an experimental study evaluating the effects of replacing fine aggregate with granite powder and cement with Alccofine-1203 on the properties of concrete.
- Testing found that replacing 15% of cement with Alccofine-1203 and 15% of fine aggregate with granite powder (mixture K3) increased the compressive strength of the concrete by 32% at 7 days, 34% at 14 days, and 42% at 28 days compared to normal concrete.
- Mixture K3 also increased the tensile and flexural strengths of the concrete the most compared to other mixtures tested at 7, 14, and 28 days.
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
More Related Content
Similar to Effect of Dolomitic Marble Dust Powder and Calcitic Marble Dust Powder on Cement Concrete Strength
Experimental Investigation on Concrete with Partial Replacement of Fine Aggre...IRJET Journal
This document presents the results of an experimental investigation on the strength properties of concrete with partial replacement of fine aggregate by granite powder. Granite powder, a byproduct of granite cutting, was used to replace fine aggregate at 10%, 15%, and 20% levels. Concrete mixtures were tested for compressive strength, split tensile strength, and flexural strength at 7, 14, and 28 days. The results showed that 10% replacement of fine aggregate provided optimal strength gains of 1-2% compared to conventional concrete. Higher replacement levels of 15% and 20% resulted in lower strength compared to conventional concrete. Therefore, the study recommends using 10% granite powder as a partial replacement of fine aggregate in concrete for improved strength and economical
IRJET- Review Paper on Use of Rise Husk Ash as Mineral Filler in Mastic AsphaltIRJET Journal
This document reviews the use of rice husk ash (RHA) as a mineral filler in mastic asphalt. RHA is an agricultural waste produced during rice milling that contains a high percentage of silica. The document discusses how RHA has properties suitable for use as a filler, including its specific gravity and amorphous silica content. The document then summarizes several past studies that investigated partially replacing traditional fillers like limestone with RHA in asphalt concrete mixtures. The results of these studies showed that RHA can improve the mechanical properties of asphalt mixtures, including increased Marshall stability. The document concludes that further investigation is needed on using RHA as a filler in mastic asphalt
IRJET- Experimental Investigation on Partial Replacement of Dunite as CementIRJET Journal
This document presents an experimental investigation on partially replacing dunite as cement in concrete. Dunite is an igneous rock composed primarily of olivine. The study tested replacing cement with dunite powder at percentages of 0%, 20%, 40%, and 60%. Tests were conducted to determine the workability and compressive strength of the concrete mixtures at curing ages of 7, 14, and 28 days. The results showed that replacing up to 40% of cement with dunite powder improved the compressive strength of hardened concrete compared to normal concrete. The dunite powder provided strength enhancement and was found to be more economical than cement alone. Therefore, partially replacing cement with dunite powder has the potential to produce durable and high
IRJET- Effect of Manufactured Sand on Mechanical Properties of ConcreteIRJET Journal
This study evaluated the effect of using manufactured sand (M-sand) from three different localities as a replacement for natural river sand in concrete. M-sand, cement, aggregate, and water were used to make concrete mixtures with a design strength of M20 grade. Specimens were tested for workability, compressive strength, split tensile strength, and flexural strength after 7, 14, and 28 days of curing. Test results found that concrete made with M-sand from Karur had 10.71% higher compressive strength, 12.15% higher split tensile strength, and 8.22% higher flexural strength compared to conventional concrete using river sand after 28 days. While workability was lower
IRJET- Experimental Investigation on Partial Replacement of Rice Husk Ash as ...IRJET Journal
The document experimentally investigates the use of rice husk ash as a partial cement replacement and coconut shell as a partial coarse aggregate replacement in producing lightweight concrete. Seven concrete mixes were prepared with coconut shell replacing conventional aggregates at 0%, 5%, 10%, 15%, 20%, and 25% and rice husk ash kept constant at 10% cement replacement. The mechanical and durability properties of the mixes were then evaluated. The results showed that the mix with 10% rice husk ash and 10% coconut shell replacement provided good mechanical properties while also offering the advantages of utilizing waste materials and reducing natural resource depletion, suggesting coconut shell could be a feasible aggregate replacement in concrete production.
Effect of Effective Porosity and Saturated Water Absorption on Rice Husk Ash-...IRJET Journal
- The document presents research on the effect of rice husk ash (RHA) and filtered sand (FS) on the durability properties of self-compacting concrete (SCC), specifically effective porosity and saturated water absorption.
- Concrete mixtures with varying replacements of cement by RHA (5-20%) and sand by FS (0-100%) were tested. Test results found that RHA-FS SCC exhibited better durability performance than conventional concrete, with lower effective porosity and saturated water absorption.
- The fresh properties of RHA-FS SCC, including slump flow, V-funnel time, and L-box blocking ratio, were found to meet EFNARC specifications for S
IRJET- A Study of Properties of Concrete Making Partial Replacement of Cement...IRJET Journal
This document discusses a study on the properties of concrete made by partially replacing cement with ceramic waste powder. Ceramic waste powder is used to replace cement at various percentages (5%, 10%, 15%, 20%, 25%, 30%) by weight. The compressive strength, split tensile strength, and flexural strength of the ceramic waste powder concrete mixtures are tested and compared to normal concrete at 7, 14, and 28 days. Results show that replacing 15% of cement with ceramic waste powder increases the compressive strength, split tensile strength, and flexural strength, making it a potential sustainable and cost-effective concrete material.
IRJET- Experimental Investigation of Effect of Neutralized Bauxite Waste (Neu...IRJET Journal
- The study investigates utilizing neutralized red mud (NRM), an industrial waste from aluminum production, as a partial replacement for cement in concrete.
- Concrete mixtures were made with 0%, 15%, 20%, and 25% replacement of cement with NRM. Testing showed compressive, tensile, and flexural strengths increased up to 20% replacement compared to normal concrete.
- The optimum replacement was found to be 20%, providing higher strengths than normal concrete and a 10.24% cost savings, showing potential economic and environmental benefits of NRM utilization in concrete.
IRJET- Mix Design Steps for Self-Compacting ConcreteIRJET Journal
This document outlines the steps for designing a self-compacting concrete mix, which differs from normal concrete mix design. It provides an example of designing Mix M3, which includes 70% ordinary Portland cement, 20% fly ash, and 10% rice husk ash. The design process involves calculating materials like coarse aggregate, fine aggregate, paste composition based on guidelines. Mix M3 specifications are provided that show the required quantities of cement, fly ash, rice husk ash, water, aggregates, and superplasticizer to achieve self-compacting properties. In conclusion, self-compacting concrete produces benefits over normal concrete like reducing labor, accelerating projects, and achieving better strength and durability, but requires proper mix proportioning
IRJET- An Experimental Study of Waste Tyres in Road ConstructionIRJET Journal
This document summarizes an experimental study on using waste tire powder as a bitumen modifier in road construction. Tire waste is a significant environmental issue as stockpiles pose fire and pollution hazards. Using tire powder could provide an eco-friendly use of waste. The study aims to develop a powdered rubber-modified bitumen that is cheaper and has improved properties over conventional bitumen. Aggregates and bitumen were tested according to standard procedures. Powdered rubber was obtained through a tire shredding and buffering process. The expectations are that a bitumen blend with powdered rubber as an additive will enhance strength and durability while reducing costs for more sustainable road construction.
IRJET- An Experimental Study of Waste Tyres in Road ConstructionIRJET Journal
This document summarizes an experimental study on using waste tire powder as a bitumen modifier in road construction. Tire waste is a significant environmental issue as stockpiles pose fire and pollution hazards. Using tire powder could provide an eco-friendly use of waste. The study aims to develop a powdered rubber-modified bitumen that is cheaper and provides better mechanical properties than conventional bitumen. Aggregates and base bitumen were tested according to standard procedures. Powdered rubber was obtained through a tire shredding and grinding process. The modified bitumens will be tested to evaluate the mechanical properties and potential cost savings compared to unmodified bitumen.
IRJET - Influence of CRMB in SMA by using Coir Fibre – An Experimental AnalysisIRJET Journal
This document analyzes the use of crumb rubber modified bitumen (CRMB) in stone mastic asphalt (SMA) pavement with the addition of coir fiber. Marshall mix design tests were conducted on SMA mixtures with varying percentages of CRMB and coir fiber. The results showed that mixtures with 7% bitumen content and 0.5% coir fiber exhibited the highest stability. Using CRMB and coir fiber in SMA improves the performance properties of the pavement such as increased strength and durability. The study demonstrated that CRMB-SMA pavement with optimized fiber content provides better performance compared to conventional pavement.
STUDY ON PROPERTIES STRENGTH OF CONCRETE BY PARTIAL REPLACEMENT OF FINE AGGRE...IRJET Journal
This document presents the results of a study on the properties and strength of concrete with partial replacement of fine aggregate with copper slag and cement with egg shell powder. Various strength tests were conducted on concrete mixtures with varying percentages of copper slag replacement of fine aggregate (0-30%) and egg shell powder replacement of cement (0-30%). The compressive strength, split tensile strength, and flexural strength of the concrete mixtures were tested and compared to normal concrete. The results showed that replacement of 15-25% copper slag and 15% egg shell powder generally improved the strength properties of M30 grade concrete. Workability was reduced but the optimum replacement levels enhanced strength compared to normal concrete. Thus, utilizing industrial wastes like copper slag
IRJET- Experimental Study on Concrete Adding with Granite Dust and Copper ScrapIRJET Journal
This study experimentally investigated the effects of partially replacing sand with granite dust and adding copper scrap to concrete. Concrete cubes and cylinders were cast with 25% replacement of sand by granite dust and addition of 1%, 1.5%, and 2% copper scrap. Testing found that compressive strength increased up to 3MPa and tensile strength increased significantly with the partial replacements compared to conventional concrete. Specifically, concrete with 25% granite dust and 1.5% copper scrap additions achieved the highest strengths. Thus, utilizing these wastes provided an economical and environmentally friendly concrete mix.
Investigation and Feasibility of Fly Ash and Rise Husk Ash and Quarry Sand fo...IRJET Journal
1) The study investigates using rice husk ash, fly ash, and quarry dust as partial replacements for standard sand in concrete mixtures.
2) The research aims to determine the performance of concrete with varying proportions of rice husk ash and fly ash, ranging from 30% fly ash and 0% rice husk ash up to 15% of each.
3) Numerous tests will be performed on the concrete mixtures including compressive strength, flexural strength, split tensile strength, and workability.
Effect on compressive strength of concrete with partial replacement of cement...IRJET Journal
This document evaluates the effect of partially replacing cement with municipal solid waste incinerator ash (MSWIA) on the compressive strength of concrete. Concrete cubes were produced by replacing cement at levels of 0%, 5%, 10%, 15%, 20%, 25%, and 30% with MSWIA. Testing found that compressive strength initially increased with MSWIA content up to 10%, reaching a maximum 28-day strength gain of 15.31% compared to the control. However, strengths decreased with replacements over 10% due to gas formation from chemical reactions involving aluminum in the ash. Thus, MSWIA can partially replace up to 10% of cement without compromising compressive strength.
Nil Waste Process Evolution for a Low Grade LimestoneIRJET Journal
This document summarizes research on developing a nil waste process for beneficiating a low-grade limestone using reverse cationic flotation.
The limestone sample contained mainly calcite and quartz and was analyzed to contain 45% CaO and 80% total carbonates. Grinding and flotation tests were conducted varying parameters like mesh of grind, collector type and dosage. The optimum conditions found were a mesh of grind of D80 400 microns, using 0.4 kg/t of cationic collector SOKEM565C. This produced a cement-grade concentrate assaying 90% total carbonates at an 88% weight yield. The non-float fraction assaying 80.30% Al
Study on Concrete by Replacing Cement by SCBA using 100% M-Sand as Fine Aggre...IRJET Journal
This document presents a study on concrete with partial replacement of ordinary Portland cement with sugarcane bagasse ash (SCBA) and complete replacement of river sand with manufactured sand (M-Sand) as fine aggregates. Standard specimens of M30 grade concrete with 0.45 water-cement ratio were tested at 3, 7, and 28 days to determine compressive strength, split tensile strength, and flexural strength. Test results found compressive strength increased up to 5% SCBA replacement and decreased with further replacement. 15% SCBA replacement achieved highest split tensile strength while flexural strength decreased with M-sand and SCBA. Results were comparable or favorable to conventional concrete, indicating suitability for structural use in buildings
Effect on Compressive and Tensile Strength of Cement Concrete Road Pavements ...IRJET Journal
This document summarizes a study on using iron ore tailings to partially replace fine aggregate in cement concrete used for road pavements. Concrete cubes and cylinders were cast with 0-50% replacement of sand with iron ore tailings. Compressive and flexural strength were tested at 7, 21, and 28 days. Results showed that compressive and flexural strength increased up to 30-40% replacement, but then started decreasing at 50% replacement. The study concluded that iron ore tailings can effectively replace a portion of fine aggregate in concrete, improving utilization of this waste material without compromising strength.
EXPERIMENTAL STUDY ON THE BEHAVIOR OFCONCRETE BY REPLACEMENT OF FINE AGGREGAT...IRJET Journal
- The document presents the results of an experimental study evaluating the effects of replacing fine aggregate with granite powder and cement with Alccofine-1203 on the properties of concrete.
- Testing found that replacing 15% of cement with Alccofine-1203 and 15% of fine aggregate with granite powder (mixture K3) increased the compressive strength of the concrete by 32% at 7 days, 34% at 14 days, and 42% at 28 days compared to normal concrete.
- Mixture K3 also increased the tensile and flexural strengths of the concrete the most compared to other mixtures tested at 7, 14, and 28 days.
Similar to Effect of Dolomitic Marble Dust Powder and Calcitic Marble Dust Powder on Cement Concrete Strength (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.
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.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
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.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
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.