This document summarizes research into improving the strength and durability of high-performance concrete (HPC) through the partial replacement of ordinary Portland cement (OPC) with ground granulated blast furnace slag (GGBS). Six concrete mixes were tested with GGBS replacement levels ranging from 10-50% of the total cementitious material. Compressive strength and split tensile strength tests found that replacement levels of 20-40% GGBS provided optimal results, increasing strengths over conventional concrete. Using GGBS also provides environmental and sustainability benefits compared to pure OPC mixes.
IRJET- Experimental Study on Partial Replacement of Cement by GGBS and Fi...IRJET Journal
This document presents the results of an experimental study on the partial replacement of cement with ground granulated blast furnace slag (GGBS) and natural river sand with manufactured robosand in M25 grade concrete. Various materials used in the study like cement, GGBS, fine aggregates, coarse aggregates and robosand were tested to check their suitability. Concrete cubes were cast by replacing cement with 0%, 5%, 10%, 15%, 20%, 25% GGBS and sand with 0%, 10%, 20%, 25%, 30% robosand. The cubes were tested for compressive strength at 7 and 28 days. The optimum replacement found was 20% cement replaced with GGBS and 25% sand replaced with rob
Project Report on Concrete Mix Design of Grade M35Gyan Prakash
This document provides a project report on the concrete mix design for grade M-35 concrete. It includes an introduction to concrete mix design objectives and considerations. It then describes the Indian Standard method for mix design in six steps: 1) selecting target compressive strength, 2) selecting water-cement ratio, 3) estimating air content, 4) selecting water content and fine-coarse aggregate ratio, 5) calculating cement content, and 6) calculating aggregate content. The report also includes test results for materials and mixes.
IRJET-Replacement of Cement by Granite Powder in Paver BlocksIRJET Journal
This study investigated using granite powder to replace cement in paver blocks. Granite powder is a byproduct of stone crushing that is currently underutilized. The study tested paver blocks with 25%, 50%, and 75% cement replaced by granite powder. Testing showed that replacing 25% of cement with granite powder increased the compressive strength by 7% and flexural strength by 12% compared to normal paver blocks. Water absorption was slightly higher but still under 6% for the 25% replacement. Residual compressive strength after heating to 150°C was also highest for the 25% replacement mix. It was determined that the 25% replacement of cement with granite powder provided optimal performance while also reducing costs.
The document compares the concrete mix design methods outlined in the Indian Standards (IS) 10262:2009 and the American Concrete Institute (ACI) 211.1. Some key differences are noted:
- IS 10262:2009 is adapted from the ACI method and requires developing a water-cement ratio curve based on local materials, while older IS and ACI methods used generalized curves.
- The older IS method determined sand content before coarse aggregate content, while ACI and new IS follow the reverse order.
- Calculations of ingredients differ between methods.
- An example mix design for M20 concrete is provided using both new IS and ACI methods to illustrate the procedures.
The document provides definitions and test procedures for determining properties of concrete materials. It discusses tests to determine SSD bulk specific gravity and water absorption of coarse and fine aggregates, fineness modulus of fine aggregate, and rodded bulk density of coarse aggregate. It also outlines the steps to calculate a design mix for M25 grade concrete using test data for materials' properties and strengths. The design mix calculation involves selecting water-cement ratio, determining cement and aggregate contents, and quantities of materials for 1 cubic meter of concrete.
IRJET- Self-Compacting Concrete - Procedure and Mix DesignIRJET Journal
This document presents a procedure for designing self-compacting concrete mixes. It describes testing various mix designs to achieve the required properties of self-compacting concrete, including adequate flowability, passing ability, and resistance to segregation. A series of trial mixes were conducted by varying the proportions of coarse and fine aggregates, water-cement ratio, and superplasticizer dosage. The optimal mix was determined to have 34% coarse aggregate, 57% fine aggregate, a water-cement ratio of 0.50, and 1.15% superplasticizer. This mix met all acceptance criteria for self-compacting concrete based on slump flow, V-funnel, and L-box tests. Compressive strength results
IRJET- Experimental Investigation for Strength of Concrete by using Fly AshIRJET Journal
This document summarizes an experimental investigation into the strength of concrete when using fly ash. Fly ash from various sources was used to replace 25% of cement by weight or volume in mortar mixes. The mixes were tested at various water-to-binder ratios and cured for up to 90 days. Testing showed that early strength was lower with fly ash but most mixes recovered strength by 28 days. Finer fly ashes performed equal to or better than ordinary Portland cement after 28 days. The results indicate that fly ash can provide strength improvements to concrete while providing economic and environmental benefits over pure cement.
IRJET- Study on Self Compacting Concrete as Partial Replacement for Fine Aggr...IRJET Journal
This document summarizes a study on the use of coarse aggregate as a partial replacement for fine aggregate in self-compacting concrete. The fine aggregate was replaced with coarse aggregate at percentages of 9%, 12%, 15%, and 18%. Testing of the concrete mixtures found that 18% replacement of fine aggregate with coarse aggregate produced optimal results for self-compacting concrete. The concrete mixtures were tested for properties such as slump flow, J-ring flow, V-funnel flow, and L-box ratio to evaluate flowability and passing ability. Compressive strength was also tested at 7 and 28 days. The results provide useful information for using coarse aggregate to partially replace fine aggregate in advanced concrete production.
IRJET- Experimental Study on Partial Replacement of Cement by GGBS and Fi...IRJET Journal
This document presents the results of an experimental study on the partial replacement of cement with ground granulated blast furnace slag (GGBS) and natural river sand with manufactured robosand in M25 grade concrete. Various materials used in the study like cement, GGBS, fine aggregates, coarse aggregates and robosand were tested to check their suitability. Concrete cubes were cast by replacing cement with 0%, 5%, 10%, 15%, 20%, 25% GGBS and sand with 0%, 10%, 20%, 25%, 30% robosand. The cubes were tested for compressive strength at 7 and 28 days. The optimum replacement found was 20% cement replaced with GGBS and 25% sand replaced with rob
Project Report on Concrete Mix Design of Grade M35Gyan Prakash
This document provides a project report on the concrete mix design for grade M-35 concrete. It includes an introduction to concrete mix design objectives and considerations. It then describes the Indian Standard method for mix design in six steps: 1) selecting target compressive strength, 2) selecting water-cement ratio, 3) estimating air content, 4) selecting water content and fine-coarse aggregate ratio, 5) calculating cement content, and 6) calculating aggregate content. The report also includes test results for materials and mixes.
IRJET-Replacement of Cement by Granite Powder in Paver BlocksIRJET Journal
This study investigated using granite powder to replace cement in paver blocks. Granite powder is a byproduct of stone crushing that is currently underutilized. The study tested paver blocks with 25%, 50%, and 75% cement replaced by granite powder. Testing showed that replacing 25% of cement with granite powder increased the compressive strength by 7% and flexural strength by 12% compared to normal paver blocks. Water absorption was slightly higher but still under 6% for the 25% replacement. Residual compressive strength after heating to 150°C was also highest for the 25% replacement mix. It was determined that the 25% replacement of cement with granite powder provided optimal performance while also reducing costs.
The document compares the concrete mix design methods outlined in the Indian Standards (IS) 10262:2009 and the American Concrete Institute (ACI) 211.1. Some key differences are noted:
- IS 10262:2009 is adapted from the ACI method and requires developing a water-cement ratio curve based on local materials, while older IS and ACI methods used generalized curves.
- The older IS method determined sand content before coarse aggregate content, while ACI and new IS follow the reverse order.
- Calculations of ingredients differ between methods.
- An example mix design for M20 concrete is provided using both new IS and ACI methods to illustrate the procedures.
The document provides definitions and test procedures for determining properties of concrete materials. It discusses tests to determine SSD bulk specific gravity and water absorption of coarse and fine aggregates, fineness modulus of fine aggregate, and rodded bulk density of coarse aggregate. It also outlines the steps to calculate a design mix for M25 grade concrete using test data for materials' properties and strengths. The design mix calculation involves selecting water-cement ratio, determining cement and aggregate contents, and quantities of materials for 1 cubic meter of concrete.
IRJET- Self-Compacting Concrete - Procedure and Mix DesignIRJET Journal
This document presents a procedure for designing self-compacting concrete mixes. It describes testing various mix designs to achieve the required properties of self-compacting concrete, including adequate flowability, passing ability, and resistance to segregation. A series of trial mixes were conducted by varying the proportions of coarse and fine aggregates, water-cement ratio, and superplasticizer dosage. The optimal mix was determined to have 34% coarse aggregate, 57% fine aggregate, a water-cement ratio of 0.50, and 1.15% superplasticizer. This mix met all acceptance criteria for self-compacting concrete based on slump flow, V-funnel, and L-box tests. Compressive strength results
IRJET- Experimental Investigation for Strength of Concrete by using Fly AshIRJET Journal
This document summarizes an experimental investigation into the strength of concrete when using fly ash. Fly ash from various sources was used to replace 25% of cement by weight or volume in mortar mixes. The mixes were tested at various water-to-binder ratios and cured for up to 90 days. Testing showed that early strength was lower with fly ash but most mixes recovered strength by 28 days. Finer fly ashes performed equal to or better than ordinary Portland cement after 28 days. The results indicate that fly ash can provide strength improvements to concrete while providing economic and environmental benefits over pure cement.
IRJET- Study on Self Compacting Concrete as Partial Replacement for Fine Aggr...IRJET Journal
This document summarizes a study on the use of coarse aggregate as a partial replacement for fine aggregate in self-compacting concrete. The fine aggregate was replaced with coarse aggregate at percentages of 9%, 12%, 15%, and 18%. Testing of the concrete mixtures found that 18% replacement of fine aggregate with coarse aggregate produced optimal results for self-compacting concrete. The concrete mixtures were tested for properties such as slump flow, J-ring flow, V-funnel flow, and L-box ratio to evaluate flowability and passing ability. Compressive strength was also tested at 7 and 28 days. The results provide useful information for using coarse aggregate to partially replace fine aggregate in advanced concrete production.
This document provides a literature review on early strength concrete. It discusses three previous studies that examined different mix designs and properties of early strength concrete containing mineral admixtures or chemical admixtures. The review discusses the techniques used to achieve early concrete strength, including the use of high-early strength cement, chemical admixtures, mineral admixtures, and curing methods. It also summarizes research on the effects of pozzolans, calcium chloride, and superplasticizers on the properties of early strength concrete.
IRJET- Comparative Study on SCC with Particle Packing Density and Efnarc ...IRJET Journal
This document summarizes a study that compares self-compacting concrete (SCC) mixes designed using particle packing density and EFNARC guidelines. The study evaluated the fresh and hardened properties of SCC mixes with 20% fly ash replacement and water-cement ratios of 0.30, 0.33, and 0.35. Tests on fresh concrete included slump flow, V-funnel, L-box, and J-ring, while compressive and split tensile strengths were evaluated on hardened concrete at 7 and 28 days. Results showed the particle packing density mixes achieved higher compressive and split tensile strengths compared to EFNARC mixes. The study concluded particle packing density is an effective method for SCC mix design
Analytical Method for Asphalt Concrete Mix DesignPENKI RAMU
This document presents an analytical method for asphalt concrete mix design using granite powder as filler. It discusses selecting aggregates, developing aggregate gradation models, determining proportions using Excel Solver, estimating gradation areas with Trapezoidal rule, and evaluating mixtures using Marshall stability tests. Test results show granite powder produces comparable properties to stone dust filler and influences aging by increasing stiffness. The method allows quick, accurate mix design optimization.
IRJET- Experimental Study on Partial Replacement of Cement by GGBS and Fi...IRJET Journal
This study experimentally evaluated the strength properties of concrete with partial replacements of cement with ground granulated blast furnace slag (GGBS) and natural river sand with foundry sand. Concrete cubes of M20 grade mix were cast with GGBS replacing cement at 0-25% by weight and foundry sand replacing river sand at 0-30% by weight. The cubes were tested for compressive strength at 7 and 28 days. The results showed that 20% GGBS replacement of cement and 25% foundry sand replacement of river sand provided the optimum compressive strength, giving a 57% increase over conventional concrete and meeting the target strength for M20 mix. Thus partial replacements were found to provide strength benefits while utilizing industrial by
Concrete Mix design with the recommendation of IS10262:2009. Also discussed the differences between the IS10262:2009 and IS10262:1982.
The major content of presentation are:
Scope
Introduction
Factors affected mix design
Mix Design
Differences b/w IS10262:1982 and 10262:2009
Exercise
IRJET-Analysis on Mix Design of High Strength Concrete (M100)IRJET Journal
This document presents a study on the mix design of high strength concrete with a compressive strength of 111.8 MPa. Five trials were conducted to determine the optimal mix proportions. Trial 5, with a water-binder ratio of 0.25 and a cement:sand:coarse aggregate ratio of 1:1.35:2.14, achieved the target strength when specimens were cured using accelerated steam curing. The mix included 1% polycarboxylate ether-based superplasticizer and 10% silica fume to reduce water content. Compressive strengths from Trial 5 specimens indicated an average 28-day strength of 111.8 MPa, meeting the design goal. The study demonstrated that high strength
An Investigation on Strength and Durability of Cement Concrete Partially Repl...IRJET Journal
This document investigates using granite slurry as a partial replacement for cement in concrete. Granite slurry is a waste material from rock quarrying and crushing. The study tested concrete mixtures with 5-20% cement replacement using granite slurry under 75 microns. Tests found compressive and flexural strength were maintained with up to 10% replacement after 28 days. Higher replacements showed strength decreases. The study concluded granite slurry can be used for partial cement replacement, providing both economic and environmental benefits by reducing costs and waste. Up to 5% replacement provided optimal strength properties.
IRJET- VStudy on Strength and Durability Properties of Concrete using Steel S...IRJET Journal
This study investigated the strength and durability properties of concrete using steel slag as a replacement for crushed stone coarse aggregate. A total of 81 concrete cubes, cylinders, and prisms were cast with 0%, 25%, 50%, and 75% replacements of steel slag aggregate. Additional mixes replaced 100% of the coarse aggregate with steel slag both with and without silica fume. The concrete was tested for mechanical properties such as compressive strength, modulus of elasticity, and flexural strength as well as durability properties including acid attack resistance and rapid chloride permeability. Test results showed that 50% replacement of steel slag achieved similar mechanical properties as the crushed stone control mix. Durability properties were also comparable or better than the control mix. Therefore
IRJET- Experimental Investigation of Self Compacting and Self Curing Concrete...IRJET Journal
This document presents an experimental investigation of self-compacting and self-curing concrete with different admixtures. The objective is to study the strength of concrete using a combination of self-compacting and self-curing properties. Tests were conducted on various materials used in concrete including cement, fine aggregate, coarse aggregate, water, Conplast SP430 superplasticizer, and Polyethylene Glycol 400 as a self-curing agent. Concrete mixtures were prepared with different dosages of admixtures and cured without external curing. Compressive strength tests were performed on specimen cubes to analyze the effects of self-compacting and self-curing properties on concrete strength.
IRJET- Utilization of Glass Powder and Fly Ash in Concrete Paver BlocksIRJET Journal
This document summarizes research on utilizing glass powder and fly ash in concrete paver blocks. Paver blocks were produced with varying replacements of cement with fly ash and manufacturing sand with glass powder. The blocks were tested for compressive strength, flexural strength, and water absorption. Test results found that replacing 30% of cement with fly ash and 30% of manufacturing sand with glass powder produced blocks with improved compressive strength, flexural strength, and lower water absorption, while also reducing costs. Utilizing these waste materials provides environmental and economic benefits for paver block production.
IRJET- Influence of Zycosil in Cold Mix Design of DBM (Dense Bituminous Macadam)IRJET Journal
This document discusses research into using the nano-material zycosil as an additive in cold mix design for dense bituminous macadam (DBM). Various DBM samples were prepared with different percentages of binder content and zycosil additive. The samples were tested using the Marshall method to determine properties like stability. The results showed that adding zycosil increased the Marshall stability values of the mixes significantly. The researchers concluded that using zycosil added to the optimum bitumen content is suggested for improving the strength of flexible pavements.
The document discusses water-cement ratio and its effect on concrete strength. It provides examples of calculating water and cement amounts given a ratio. It also discusses determining the design and batched water-cement ratios for a given mix, accounting for cement, fly ash, water amounts. Calculating percent solids and voids in aggregates based on dry rodded unit weight is also covered.
1. The document discusses mix design procedures for concrete.
2. Key steps include selecting a water-cement ratio of 0.5 based on the target compressive strength of 26.6 MPa, and choosing a water content of 191.6 kg/m3 and fine aggregate content of 31.5% of total aggregate based on tables.
3. Cement content is calculated as 383 kg/m3 based on the selected water-cement ratio of 0.5.
Laboratory Study on using Waste Glass as Filler in Bituminous MixesIRJET Journal
The document summarizes a study on using waste glass as a filler in bituminous concrete mixes. Bituminous concrete mixes were prepared using three different fillers - cement, lime, and glass powder - at dosages of 4%, 6%, and 8%. Mixes with glass powder displayed similar Marshall and volumetric properties as mixes with conventional fillers. The optimum dosage of glass powder was determined to be 6.2%, at which mixes had higher stability, lower flow values, and density compared to normal mixes. Using glass powder waste as a filler can produce more stable and durable bituminous mixes while providing an environmentally-friendly way to dispose of glass waste from industries.
This document provides information on concrete mix design, including objectives, basic considerations, and the IS (Indian Standards) method for mix design. The objectives of mix design are to achieve the desired workability, strength, durability, and cost. Basic considerations include cost, specifications, workability, strength, durability, and aggregate grading. The IS method is then described in steps, including selecting target strength, water-cement ratio, air content, water and sand contents, cement content, and aggregate contents. An example application of the IS method is also provided.
Fresh and Hardened Properties of Ground Granulated Blast Furnace Slag Made Co...IJMREMJournal
This research work was carried out on concrete specimens made with different proportion of Ground Granulated Blast Furnace Slag (GGBFS) as a cement substitution in concrete. To accomplish the goal of the research work, overall 75 cubes and 60 cylinders were made. Out of 75 cubes and 60 cylinders, 15 cubes and 12 cylinders were cast for control concrete, and 60 cubes and 48 cylinders were cast by replacing 5,10,15 and 20% of cement with GGBFS. The cubes and cylinder specimens were 100x100x100 mm and 100x200 mm respectively, and mix design was done for 28 Mpa. All specimens were tested at 3. 7, 28 and 90 days of curing ages. The fresh properties such as workability and hardened properties such as compressive and tensile strength of all mixes were determined. Tests results showed that the workability of the concrete mixes made with GGBFS was higher than control mix. As the percentage of GGBFS increased the workability also increased. Hardened properties of concrete mixes made with GGBFS was lower than control concrete at early ages of curing. At the later age, hardened properties of GGBFS made concrete was more than control concrete. Furthermore, water absorption and density of GGBFS made concrete was lower than control concrete.
A Study on Strength Properties of Concrete Made with Waste Ready-Mix Concrete...IRJET Journal
This document presents a study on the strength properties of concrete made with waste ready-mix concrete as coarse aggregate and partial replacement of cement by ground granulated blast furnace slag (GGBS). Various mixes were designed to replace natural coarse aggregate with recycled coarse aggregate at percentages of 20%, 40%, and 60%. Cubes and cylinders were cast and tested to determine the compressive and split tensile strengths of the mixes at 28 days. The results showed that concrete with recycled coarse aggregate and GGBS replacement achieved comparable strength to conventional concrete. Finite element analysis was also conducted to validate the experimental results. The study concludes that waste ready-mix concrete can effectively be used as coarse aggregate in concrete production.
IRJET- Evaluation of Properties of Reactive Powder Concrete and Determination...IRJET Journal
This document discusses the evaluation of properties of reactive powder concrete (RPC) using locally available materials in India. RPC is an ultra-high strength concrete with no coarse aggregates. The document details the development of 9 different RPC mix designs varying the water-binder ratio, silica fume content, and superplasticizer dosage. Fresh and hardened properties like compressive strength, flexural strength, bond strength, and modulus of elasticity were tested on specimens cured with both normal and hot air curing. The maximum compressive strength of 108.63 MPa was achieved for a mix with 20% silica fume content and a water-binder ratio of 0.25, cured with hot air. Flexural strengths were found
Mix design by Indian standard method for M20patiltushar941
The document summarizes the steps to design a nominal mix concrete with a target mean strength of M20. It includes determining the water-cement ratio, selecting the water content, calculating the cement content, estimating coarse and fine aggregate volumes, calculating mix proportions, and making site corrections for aggregate absorption. The resulting nominal mix proportion is 1 bag of cement to 1.73 times fine aggregate by weight to 2.94 times coarse aggregate by weight, with a water-cement ratio of 0.47.
IRJET- Analysis of Rice Husk Ash as a Second Stringer of Cement in Concre...IRJET Journal
This document analyzes the use of rice husk ash (RHA) as a partial replacement for cement in concrete. It discusses how RHA can improve the mechanical and durability properties of concrete while providing economic and environmental benefits. The study examines the effects of replacing cement with 7%, 14%, 21%, and 28% RHA on the consistency, workability, compressive strength, and flexural strength of concrete mixtures. The results showed that concrete containing up to 21% RHA replacement exhibited increased compressive and flexural strengths compared to the control mixture. However, strengths decreased with 28% replacement. Workability was reduced with RHA but increased again at 28% replacement. Therefore, RHA can effectively replace up to 21
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.
IRJET- Experimental Investigation of Paver Blocks using High Early Strenght C...IRJET Journal
The document experimentally investigates the use of high early strength concrete for paver blocks. It summarizes that high early strength concrete can achieve structural strength within 24 hours, allowing blocks to be stacked sooner. The research aims to gain early strength and study properties using local waste materials like rice husk ash and calcium chloride as a cement replacement. Materials were tested and a mix design was developed. Fresh and hardened concrete was then tested, with compressive strength tests showing that concrete with a 15% calcium chloride accelerator achieved the highest strength at 7, 14, and 28 days. The conclusion is that the accelerator allows for higher early strength and durability compared to normal concrete.
This document provides a literature review on early strength concrete. It discusses three previous studies that examined different mix designs and properties of early strength concrete containing mineral admixtures or chemical admixtures. The review discusses the techniques used to achieve early concrete strength, including the use of high-early strength cement, chemical admixtures, mineral admixtures, and curing methods. It also summarizes research on the effects of pozzolans, calcium chloride, and superplasticizers on the properties of early strength concrete.
IRJET- Comparative Study on SCC with Particle Packing Density and Efnarc ...IRJET Journal
This document summarizes a study that compares self-compacting concrete (SCC) mixes designed using particle packing density and EFNARC guidelines. The study evaluated the fresh and hardened properties of SCC mixes with 20% fly ash replacement and water-cement ratios of 0.30, 0.33, and 0.35. Tests on fresh concrete included slump flow, V-funnel, L-box, and J-ring, while compressive and split tensile strengths were evaluated on hardened concrete at 7 and 28 days. Results showed the particle packing density mixes achieved higher compressive and split tensile strengths compared to EFNARC mixes. The study concluded particle packing density is an effective method for SCC mix design
Analytical Method for Asphalt Concrete Mix DesignPENKI RAMU
This document presents an analytical method for asphalt concrete mix design using granite powder as filler. It discusses selecting aggregates, developing aggregate gradation models, determining proportions using Excel Solver, estimating gradation areas with Trapezoidal rule, and evaluating mixtures using Marshall stability tests. Test results show granite powder produces comparable properties to stone dust filler and influences aging by increasing stiffness. The method allows quick, accurate mix design optimization.
IRJET- Experimental Study on Partial Replacement of Cement by GGBS and Fi...IRJET Journal
This study experimentally evaluated the strength properties of concrete with partial replacements of cement with ground granulated blast furnace slag (GGBS) and natural river sand with foundry sand. Concrete cubes of M20 grade mix were cast with GGBS replacing cement at 0-25% by weight and foundry sand replacing river sand at 0-30% by weight. The cubes were tested for compressive strength at 7 and 28 days. The results showed that 20% GGBS replacement of cement and 25% foundry sand replacement of river sand provided the optimum compressive strength, giving a 57% increase over conventional concrete and meeting the target strength for M20 mix. Thus partial replacements were found to provide strength benefits while utilizing industrial by
Concrete Mix design with the recommendation of IS10262:2009. Also discussed the differences between the IS10262:2009 and IS10262:1982.
The major content of presentation are:
Scope
Introduction
Factors affected mix design
Mix Design
Differences b/w IS10262:1982 and 10262:2009
Exercise
IRJET-Analysis on Mix Design of High Strength Concrete (M100)IRJET Journal
This document presents a study on the mix design of high strength concrete with a compressive strength of 111.8 MPa. Five trials were conducted to determine the optimal mix proportions. Trial 5, with a water-binder ratio of 0.25 and a cement:sand:coarse aggregate ratio of 1:1.35:2.14, achieved the target strength when specimens were cured using accelerated steam curing. The mix included 1% polycarboxylate ether-based superplasticizer and 10% silica fume to reduce water content. Compressive strengths from Trial 5 specimens indicated an average 28-day strength of 111.8 MPa, meeting the design goal. The study demonstrated that high strength
An Investigation on Strength and Durability of Cement Concrete Partially Repl...IRJET Journal
This document investigates using granite slurry as a partial replacement for cement in concrete. Granite slurry is a waste material from rock quarrying and crushing. The study tested concrete mixtures with 5-20% cement replacement using granite slurry under 75 microns. Tests found compressive and flexural strength were maintained with up to 10% replacement after 28 days. Higher replacements showed strength decreases. The study concluded granite slurry can be used for partial cement replacement, providing both economic and environmental benefits by reducing costs and waste. Up to 5% replacement provided optimal strength properties.
IRJET- VStudy on Strength and Durability Properties of Concrete using Steel S...IRJET Journal
This study investigated the strength and durability properties of concrete using steel slag as a replacement for crushed stone coarse aggregate. A total of 81 concrete cubes, cylinders, and prisms were cast with 0%, 25%, 50%, and 75% replacements of steel slag aggregate. Additional mixes replaced 100% of the coarse aggregate with steel slag both with and without silica fume. The concrete was tested for mechanical properties such as compressive strength, modulus of elasticity, and flexural strength as well as durability properties including acid attack resistance and rapid chloride permeability. Test results showed that 50% replacement of steel slag achieved similar mechanical properties as the crushed stone control mix. Durability properties were also comparable or better than the control mix. Therefore
IRJET- Experimental Investigation of Self Compacting and Self Curing Concrete...IRJET Journal
This document presents an experimental investigation of self-compacting and self-curing concrete with different admixtures. The objective is to study the strength of concrete using a combination of self-compacting and self-curing properties. Tests were conducted on various materials used in concrete including cement, fine aggregate, coarse aggregate, water, Conplast SP430 superplasticizer, and Polyethylene Glycol 400 as a self-curing agent. Concrete mixtures were prepared with different dosages of admixtures and cured without external curing. Compressive strength tests were performed on specimen cubes to analyze the effects of self-compacting and self-curing properties on concrete strength.
IRJET- Utilization of Glass Powder and Fly Ash in Concrete Paver BlocksIRJET Journal
This document summarizes research on utilizing glass powder and fly ash in concrete paver blocks. Paver blocks were produced with varying replacements of cement with fly ash and manufacturing sand with glass powder. The blocks were tested for compressive strength, flexural strength, and water absorption. Test results found that replacing 30% of cement with fly ash and 30% of manufacturing sand with glass powder produced blocks with improved compressive strength, flexural strength, and lower water absorption, while also reducing costs. Utilizing these waste materials provides environmental and economic benefits for paver block production.
IRJET- Influence of Zycosil in Cold Mix Design of DBM (Dense Bituminous Macadam)IRJET Journal
This document discusses research into using the nano-material zycosil as an additive in cold mix design for dense bituminous macadam (DBM). Various DBM samples were prepared with different percentages of binder content and zycosil additive. The samples were tested using the Marshall method to determine properties like stability. The results showed that adding zycosil increased the Marshall stability values of the mixes significantly. The researchers concluded that using zycosil added to the optimum bitumen content is suggested for improving the strength of flexible pavements.
The document discusses water-cement ratio and its effect on concrete strength. It provides examples of calculating water and cement amounts given a ratio. It also discusses determining the design and batched water-cement ratios for a given mix, accounting for cement, fly ash, water amounts. Calculating percent solids and voids in aggregates based on dry rodded unit weight is also covered.
1. The document discusses mix design procedures for concrete.
2. Key steps include selecting a water-cement ratio of 0.5 based on the target compressive strength of 26.6 MPa, and choosing a water content of 191.6 kg/m3 and fine aggregate content of 31.5% of total aggregate based on tables.
3. Cement content is calculated as 383 kg/m3 based on the selected water-cement ratio of 0.5.
Laboratory Study on using Waste Glass as Filler in Bituminous MixesIRJET Journal
The document summarizes a study on using waste glass as a filler in bituminous concrete mixes. Bituminous concrete mixes were prepared using three different fillers - cement, lime, and glass powder - at dosages of 4%, 6%, and 8%. Mixes with glass powder displayed similar Marshall and volumetric properties as mixes with conventional fillers. The optimum dosage of glass powder was determined to be 6.2%, at which mixes had higher stability, lower flow values, and density compared to normal mixes. Using glass powder waste as a filler can produce more stable and durable bituminous mixes while providing an environmentally-friendly way to dispose of glass waste from industries.
This document provides information on concrete mix design, including objectives, basic considerations, and the IS (Indian Standards) method for mix design. The objectives of mix design are to achieve the desired workability, strength, durability, and cost. Basic considerations include cost, specifications, workability, strength, durability, and aggregate grading. The IS method is then described in steps, including selecting target strength, water-cement ratio, air content, water and sand contents, cement content, and aggregate contents. An example application of the IS method is also provided.
Fresh and Hardened Properties of Ground Granulated Blast Furnace Slag Made Co...IJMREMJournal
This research work was carried out on concrete specimens made with different proportion of Ground Granulated Blast Furnace Slag (GGBFS) as a cement substitution in concrete. To accomplish the goal of the research work, overall 75 cubes and 60 cylinders were made. Out of 75 cubes and 60 cylinders, 15 cubes and 12 cylinders were cast for control concrete, and 60 cubes and 48 cylinders were cast by replacing 5,10,15 and 20% of cement with GGBFS. The cubes and cylinder specimens were 100x100x100 mm and 100x200 mm respectively, and mix design was done for 28 Mpa. All specimens were tested at 3. 7, 28 and 90 days of curing ages. The fresh properties such as workability and hardened properties such as compressive and tensile strength of all mixes were determined. Tests results showed that the workability of the concrete mixes made with GGBFS was higher than control mix. As the percentage of GGBFS increased the workability also increased. Hardened properties of concrete mixes made with GGBFS was lower than control concrete at early ages of curing. At the later age, hardened properties of GGBFS made concrete was more than control concrete. Furthermore, water absorption and density of GGBFS made concrete was lower than control concrete.
A Study on Strength Properties of Concrete Made with Waste Ready-Mix Concrete...IRJET Journal
This document presents a study on the strength properties of concrete made with waste ready-mix concrete as coarse aggregate and partial replacement of cement by ground granulated blast furnace slag (GGBS). Various mixes were designed to replace natural coarse aggregate with recycled coarse aggregate at percentages of 20%, 40%, and 60%. Cubes and cylinders were cast and tested to determine the compressive and split tensile strengths of the mixes at 28 days. The results showed that concrete with recycled coarse aggregate and GGBS replacement achieved comparable strength to conventional concrete. Finite element analysis was also conducted to validate the experimental results. The study concludes that waste ready-mix concrete can effectively be used as coarse aggregate in concrete production.
IRJET- Evaluation of Properties of Reactive Powder Concrete and Determination...IRJET Journal
This document discusses the evaluation of properties of reactive powder concrete (RPC) using locally available materials in India. RPC is an ultra-high strength concrete with no coarse aggregates. The document details the development of 9 different RPC mix designs varying the water-binder ratio, silica fume content, and superplasticizer dosage. Fresh and hardened properties like compressive strength, flexural strength, bond strength, and modulus of elasticity were tested on specimens cured with both normal and hot air curing. The maximum compressive strength of 108.63 MPa was achieved for a mix with 20% silica fume content and a water-binder ratio of 0.25, cured with hot air. Flexural strengths were found
Mix design by Indian standard method for M20patiltushar941
The document summarizes the steps to design a nominal mix concrete with a target mean strength of M20. It includes determining the water-cement ratio, selecting the water content, calculating the cement content, estimating coarse and fine aggregate volumes, calculating mix proportions, and making site corrections for aggregate absorption. The resulting nominal mix proportion is 1 bag of cement to 1.73 times fine aggregate by weight to 2.94 times coarse aggregate by weight, with a water-cement ratio of 0.47.
IRJET- Analysis of Rice Husk Ash as a Second Stringer of Cement in Concre...IRJET Journal
This document analyzes the use of rice husk ash (RHA) as a partial replacement for cement in concrete. It discusses how RHA can improve the mechanical and durability properties of concrete while providing economic and environmental benefits. The study examines the effects of replacing cement with 7%, 14%, 21%, and 28% RHA on the consistency, workability, compressive strength, and flexural strength of concrete mixtures. The results showed that concrete containing up to 21% RHA replacement exhibited increased compressive and flexural strengths compared to the control mixture. However, strengths decreased with 28% replacement. Workability was reduced with RHA but increased again at 28% replacement. Therefore, RHA can effectively replace up to 21
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.
IRJET- Experimental Investigation of Paver Blocks using High Early Strenght C...IRJET Journal
The document experimentally investigates the use of high early strength concrete for paver blocks. It summarizes that high early strength concrete can achieve structural strength within 24 hours, allowing blocks to be stacked sooner. The research aims to gain early strength and study properties using local waste materials like rice husk ash and calcium chloride as a cement replacement. Materials were tested and a mix design was developed. Fresh and hardened concrete was then tested, with compressive strength tests showing that concrete with a 15% calcium chloride accelerator achieved the highest strength at 7, 14, and 28 days. The conclusion is that the accelerator allows for higher early strength and durability compared to normal concrete.
Compressive Strength of M25 SCC Mix For Different Brands of OPC 53 Grade Ceme...IRJET Journal
The document investigates the effect of different brands of OPC 53 grade cement on the compressive strength of M25 self-compacting concrete (SCC) mixes. Five different cement brands were used to design SCC mixes according to the Nan-Su mix design method. The fine aggregate content was replaced with 20% copper slag. Workability tests found that all mixes met EFNARC guidelines for SCC. This establishes the use of copper slag as a mineral admixture and identifies the need to use different mix designs for different cement brands to achieve optimal concrete strength and workability.
IRJET- Use of Ceramic Powder in the Construction of Rigid PavementsIRJET Journal
This document summarizes a study that examined using ceramic powder as a partial replacement for cement in concrete mixes used for rigid pavements. Concrete mixtures were made with 0%, 10%, 20%, and 30% replacement of cement with ceramic powder passing a 75μm sieve. Specimens were tested for compressive strength, workability, flexural strength, tensile strength, and elastic modulus at various ages. Results showed properties remained within usable limits up to 30% cement replacement. Above 30% replacement, strength gradually decreased. The study concluded ceramic powder concrete can efficiently be used in rigid pavements up to 30% cement replacement, as it increases durability and provides a solution for reusing ceramic waste.
IRJET- Performance of RC Beams Cast using Normal and Self-Compacting Concrete...IRJET Journal
This document presents research on the performance of reinforced concrete (RC) beams made with normal concrete and self-compacting concrete (SCC) with different reinforcement ratios. Trial mixes were developed for normal concrete and SCC to select suitable mixes. Beams were cast using the selected normal and SCC mixes with under, balanced, and over reinforcement ratios. The beams were tested and analyzed according to the Egyptian code of practice (ECP) and American concrete institute (ACI) code to compare deflections. Test results showed differences in cracking and failure loads between experimental, ECP, and ACI analyses of the beams. The research aims to investigate the structural performance of SCC beams compared to normal concrete beams and verify differences between deflection
The document discusses the design of high strength concrete (M80 grade) using various cementitious materials and admixtures. It provides the mix design calculations and results of compressive strength tests. The key points are:
1) The mix design was developed for M80 grade concrete using OPC 53 cement, GGBS, ultrafine material, and a superplasticizer.
2) 7-day and 28-day compressive strength cube tests resulted in average strengths of 59.85 MPa and 83.56 MPa respectively, meeting the target strength.
3) High strength concrete is useful for construction of high-rise buildings and other applications where weight reduction or fewer structural elements are needed. Pro
AN EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF CEMENT WITH GGBS AND RICE HUS...IRJET Journal
This document presents the results of an experimental study on the partial replacement of cement with ground granulated blast furnace slag (GGBS) and rice husk ash (RHA) in concrete. Various tests were conducted to determine the properties of the materials used. Concrete mixes were prepared by replacing cement with 10% GGBS and 10% RHA. The compressive and split tensile strengths of concrete cubes and cylinders were tested at 7, 14, and 28 days. The results showed that the mix with 10% replacement of cement with RHA and 10% GGBS achieved higher strengths compared to the other mixes. Thus, the partial replacement of cement with GGBS and RHA can improve the strength properties of concrete
Study of Mechanical Properties of Lightweight Aggregate Concrete by using Pum...IRJET Journal
This document studies the mechanical properties of lightweight aggregate concrete made with pumice stone, ceramic tiles, and cellular lightweight concrete (CLC) bricks as partial replacements for normal coarse and fine aggregates. Pumice stone, ceramic tiles, and CLC bricks are all lightweight materials that are used to replace aggregates at rates of 10%, 20%, and 30%. Specimens including cubes, cylinders, and prisms are cast and tested at curing periods of 7, 14, and 28 days to evaluate properties like compressive strength and flexural strength. The goal is to develop an improved lightweight concrete that maintains structural integrity while reducing self-weight through the use of these alternative aggregates.
STUDY ON THE MECHANICAL PROPERTIES OF HIGH STRENGTH CONCRETE USING G.G.B.S AN...IRJET Journal
This study investigated the mechanical properties of high-strength concrete mixtures using ground granulated blast furnace slag (GGBS) and silica fume as partial replacements for cement. Various concrete mixtures were prepared with different replacement levels of GGBS (25-50%) and silica fume (5-10%) to determine their effects on compressive and flexural strength. Cubes and beams were cast and tested after 7, 14, and 28 days. The results showed that compressive strength decreased when the GGBS content exceeded 35%. The optimal mixtures were found to be D8 for M70 grade concrete (62% cement, 8% silica fume, 30% GGBS), J5 for M65
Compressive Strength of Different Grades of SCC Mix Using Portland Slag Cemen...IRJET Journal
This document presents a study investigating the effect of Portland slag cement (70%) and ground granulated blast furnace slag (GGBS) (30%) on the compressive strength of different grades of self-consolidating concrete (SCC) mixes. The Nan-Su mix design was used to develop SCC mixes with grades of M20 to M40. Workability tests found the mixes met EFNARC guidelines. Compressive strength results showed the target mean strength was not achieved for any grades based on IS 10262-2019, and grades M35 and M40 did not meet the characteristic compressive strength. In conclusion, Portland slag cement and GGBS affected the compressive strength of SCC mixes.
ANALYTICAL AND EXPERIMENTAL STUDY OF REINFORCED FOAM CONCRETE WITH STEEL FIBREIRJET Journal
This document analytically and experimentally studies the effect of adding steel fiber to foam concrete in reinforced beams. Three beams were cast: one with conventional concrete (Mix 1), one with foam concrete without fiber (Mix 2), and one with foam concrete containing 1% steel fiber (Mix 3). The beams were tested by applying loads and measuring deflection. Test results found that the foam concrete beam with steel fiber (Mix 3) performed better than the foam concrete beam without fiber (Mix 2), with deflection behavior more similar to conventional concrete. Water absorption was slightly higher for Mix 3 than Mix 2 but below standards. Compressive, split tensile, and load-deflection test results all showed Mix 3 outperforming Mix 2
IRJET- An Experimental Study on Performance of Ternary Blended High Strength ...IRJET Journal
This study experimentally investigates the performance of ternary blended high strength fiber reinforced concrete. Various mixtures were tested by replacing cement with ground granulated blast furnace slag and metakaolin at different percentages, and adding steel and glass fibers at amounts up to 2% by weight. The results showed that ternary blended fiber reinforced concrete exhibited higher compressive strength, tensile strength, and improved stress-strain behavior compared to normal concrete without additions.
IRJET- Utilization of Construction and Demolition Glass Waste for M25 GradeIRJET Journal
This study investigated the utilization of construction and demolition glass waste as a partial replacement for cement in concrete. Glass powder replaced cement at 0%, 10%, 20%, and 30% levels in M25 grade concrete mixes. The fresh and hardened concrete properties were evaluated. The results showed that workability, as measured by slump test, increased slightly with higher glass powder replacement levels. Compressive strength also increased with glass powder content, with 30% replacement concrete achieving strengths 10.2% and 10.5% higher than normal concrete at 7 and 28 days, respectively. In conclusion, glass waste powder can be effectively used to partially replace cement in concrete up to 30% without compromising strength or workability. This provides an environmentally
IRJET- Experimental Study on Strength Properties of Concrete with Partial...IRJET Journal
1) The study experimentally investigates the strength properties of concrete with partial replacement of cement by Alccofine and replacement of river sand by manufactured sand (m-sand).
2) Compressive and flexural strengths were tested on cubes and beams at 7 and 28 days of curing.
3) The results show that concrete made with 20% replacement of cement by Alccofine exhibited the highest strength increase of 19.68% for compressive strength and 11.07% for flexural strength compared to the control mix.
4) Replacement of river sand by m-sand did not significantly reduce the strength properties of concrete.
The Suitability of Crushed Over Burnt Bricks as Coarse Aggregate for ConcreteIRJET Journal
This document summarizes research on using crushed over burnt bricks as coarse aggregate in concrete. Tests were conducted to determine the physical properties of crushed over burnt brick aggregates and their suitability for replacing traditional stone aggregates at different percentages (0%, 25%, 50%, 75%, 100%). The density and compressive strength of the concrete mixes decreased as the percentage of burnt brick aggregate increased. Software analysis using ANSYS found that up to 50% replacement resulted in acceptable deformation, strain, and stress levels under a high load, suggesting burnt brick aggregate can be used as a partial replacement at up to 50% to create economical concrete.
Compressive Strength of Different Grades of SCC Mix Using Portland Slag Cemen...IRJET Journal
1. The study investigates the compressive strength of different grades of self-compacting concrete (SCC) mixes using 75% Portland slag cement, 25% ground granulated blast furnace slag (GGBS), and replacing 20% fine aggregate with copper slag.
2. The Nan-Su mix design was modified for application to SCC with Portland slag cement. Workability tests like slump flow, J-ring, V-funnel, and L-box were conducted to evaluate the fresh properties of the SCC mixes based on EFNARC guidelines.
3. Compressive strength tests at 3, 7, and 28 days and ultrasonic pulse velocity tests at 28 days were performed. The results showed
Experimental Investigation on Self Compacting Concrete with Replacement of Na...IRJET Journal
The document experimentally investigates self-compacting concrete with the replacement of natural sand by robosand and coarse aggregate by cinder for M30 grade concrete. The study aims to determine the suitable percentage replacements that provide good fresh and hardened concrete properties. Natural sand is replaced by robosand at 25% and 30% while coarse aggregate is replaced by cinder at 0%, 10%, 20%, 30%, 40%, and 50%. Test results show that compressive strength is highest at 40% cinder replacement for 25% robosand replacement, and split tensile strength is highest at 40% cinder replacement for 30% robosand replacement. The fresh concrete shows good flowability while the hardened concrete strengths are up to 23% higher than normal
IRJET- Temperature Reducing Concrete using Ceramic WasteIRJET Journal
This document summarizes a study that investigated using ceramic waste powder and spent wash from sugar production as partial replacements for cement in concrete. Ceramic waste powder was used to replace cement by 5% and 10% by weight, and spent wash was used to replace water by 0.5% and 1%. Tests were conducted to determine the slump, compaction factor, and compressive strength of the concrete mixtures. The results showed that the compressive strength at 28 days was highest for mixtures with 10% ceramic waste powder replacement and 0.5% spent wash replacement, at 53.93 MPa and 50.52 MPa respectively. Partial replacement of cement with ceramic waste powder and partial replacement of water with spent wash improved the properties
“EXPERIMENTAL STUDY ON PARTIAL REPLACEMENT OF CEMENT BY SEWAGE SLUDGE ASH AND...IRJET Journal
This document presents an experimental study on the partial replacement of cement with sewage sludge ash (SSA) and ground granulated blast furnace slag (GGBS) in concrete. Concrete cubes, cylinders, and beams were cast with cement replaced by 7.5-15% SSA and 10-60% GGBS. The specimens were tested at 7 and 28 days to determine compressive strength, split tensile strength, and flexural strength. The results showed that concrete with 30% GGBS and 10.5% SSA replacement achieved the highest strengths, with compressive strengths increasing from 19.7-24.56 MPa at 7 days and 30.21-39.91 MPa at 28
Similar to IRJET- Strength and Behaviour of High Performance Concrete with GGBS (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.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
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.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
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.