Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/41102/use-of-recyclable-material-in-civil-construction/arpit-mathur
callforpapermedicalscience, medicalsciencejournal
In today’s scenario the cement concrete is one of the most widely used construction material in the world. Increase in the population growth is leads to increase in the demands of various fields like cultivation, transportation and building construction etc. Nowadays, there is a very much increase in the demand for construction works like residential buildings, commercial buildings, bridges, dams, roads etc. and because of this increase in demand the availability of resources for the cement concrete ingredients is getting very complex. Hence people are looking for the alternative resources for the concrete ingredients in order to meet their requirements. This thesis work deals with the study of physical properties of the cement concrete with using Used Aggregate in the cement concrete mixture. The major objective of this research work is to determine that what percentage of Used Aggregate can be utilized in the cement concrete mixture to achieve its target mean strength. In this research work it is concentrated on the use of Used Aggregate in the cement concrete mixture. A series of tests were carried out to determine the compressive strength, split tensile strength with and without addition of Used Aggregate. The use of recyclable material in cement concrete mixture also helps in preservation of the environment by saving the natural resources. However, in coming few decades, it can raise new challenges for the construction industry. It is essential to investigate the properties of fresh and hardened concrete to encourage and escalate its application in the civil engineering construction industry. This research investigates the properties of fresh and hardened concrete made with different quantity Used Aggregate in the cement concrete mix.
Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/29835/to-study-the-properties-of-concrete-with-partial-replacement-of-aggregates-with-industrial-and-construction-waste/achal-jain
computer science journal, open access journal of management, conference issue publication
Natural resources are depleting worldwide while at the same time the generated wastes from the industry are increasing substantially. The sustainable development for construction involves the use of nonconventional and innovative materials, and recycling of waste materials in order to compensate the lack of natural resources and to find alternative ways conserving the environment. So, this paper presents the results of an experimental investigation carried out to evaluate the mechanical properties of concrete mixtures in which fine aggregate sand was replaced with Copper Slag CS while coarse aggregates was replaced by recycled concrete aggregate RCA from demolished structure. Both the fine and coarse aggregate were replaced with percentages 0 for the control mixture , 10 , 20 , 30 , of Copper Slag by weight. Tests were performed for properties of fresh concrete and hardened Concrete. Slump test was conducted to determine the workability of the various design concrete mix. Compressive strength and split tensile strength were determined at 7, 28 days of curing. The results indicate that workability decreases slightly with increase in Copper Slag percentage, though workability for the sample were within the prescribed limit for M25 concrete. Test results indicate significant improvement in the strength properties of plain concrete by the inclusion of CS alone while a reverse trend in observed for increasing percentage of RCA in the sample. The synergistic effect of CS and RCA on the designed sample concrete revealed that the percentage of CS is the more decisive factors than the percentage of RCA in deciding the performance of the concrete in terms of compressive and tensile strength. The outcomes of this research work showed that Copper slag and recycled concrete aggregate can be effectively used in structural concrete as a replacement of fine aggregate sand and coarse aggregate respectively. Futher, it substantiate towards sustainable construction approach because of its dual advantage of controlling menace of solid waste disposal along with its subsequent environmental pollution and increasing the cost efficiency and carbon efficiency of the product.
Experimental Investigation of Properties of Concrete with Partial Replacement of Aggregates with Industrial and Construction Waste
by Achal Jain | Er Nitin Thakur "Experimental Investigation of Properties of Concrete with Partial Replacement of Aggregates with Industrial and Construction Waste"
Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019,
Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/29834/experimental-investigation-of-properties-of-concrete-with-partial-replacement-of-aggregates-with-industrial-and-construction-waste/achal-jain
international journal of science, call for paper computer science, ugc approved journals for engineering
Natural resources are depleting worldwide while at the same time the generated wastes from the industry are increasing substantially. The sustainable development for construction involves the use of nonconventional and innovative materials, and recycling of waste materials in order to compensate the lack of natural resources and to find alternative ways conserving the environment. So, this paper presents the results of an experimental investigation carried out to evaluate the mechanical properties of concrete mixtures in which fine aggregate sand was replaced with Copper Slag CS while coarse aggregates was replaced by recycled concrete aggregate RCA from demolished structure. Both the fine and coarse aggregate were replaced with percentages 0 for the control mixture , 10 , 20 , 30 , of Copper Slag by weight. Tests were performed for properties of fresh concrete and hardened Concrete. Slump test was conducted to determine the workability of the various design concrete mix. Compressive strength and split tensile strength were determined at 7, 28 days of curing. The results indicate that workability decreases slightly with increase in Copper Slag percentage, though workability for the sample were within the prescribed limit for M25 concrete. Test results indicate significant improvement in the strength properties of plain concrete by the inclusion of CS alone while a reverse trend in observed for increasing percentage of RCA in the sample. The synergistic effect of CS and RCA on the designed sample concrete revealed that the percentage of CS is the more decisive factors than the percentage of RCA in deciding the performance of the concrete in terms of compressive and tensile strength. The outcomes of this research work showed that Copper slag and recycled concrete aggregate can be effectively used in structural concrete as a replacement of fine aggregate sand and coarse aggregate respectively. Futher, it substantiate towards sustainable construction approach because of its dual advantage of controlling menace of solid waste disposal along with its subsequent environmental pollution and increasing the cost efficiency and carbon efficiency of the product.
Nov 11, 2019 (The Expresswire) -- The objectives of this study are to define, segment, and project the size of the Recycled Aggregate market based on...
Utilization of Recycled Coarse Aggregate for Concrete Production
BY Nyo Nyo Tun" Utilization of Recycled Coarse Aggregate for Concrete Production"
Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018,
URL: http://www.ijtsrd.com/papers/ijtsrd15814.pdf
Direct URL: http://www.ijtsrd.com/engineering/civil-engineering/15814/utilization-of-recycled-coarse-aggregate-for-concrete-production/nyo-nyo-tun
international journals in engineering, engineering journal, paper publication for engineering
The utilization of recycled aggregate on compressive strength of concrete is investigated in this research. In the experimental, five types of concrete mixtures were tested: concrete made with natural aggregate as a control concrete and five types of concrete made with natural fine and recycled coarse aggregate (10%, 20%, 30% and 50%) replacement of coarse recycled aggregate). In this research, physical properties tests of each constitutes material are done according to ASTM procedures at laboratory. After that, concrete mix proportioning is done to obtain the specified 28-day characteristics cylinder compressive strength of 20 MPa (cube compressive strength of 25.64 MPa) and 75+ 25 mm slump according to ACI211 method. In this step, trial mixes are prepared using recycled coarse aggregates, with respect to the 7-day and 28-day compressive strength results. And then, appropriate mix design is selected for specified strength. Moreover, 120 concrete specimens for mix proportion of selected Grade is tested to the 7-day and 28-day compressive strength to establish a standard deviation and their results are compared. For standard deviation, total 720 cubes (120 cubes for each) are cast. In this research, concrete made with 30% recycled coarse aggregate performed best in specified target strength and also in selected slump control among the various proportions
peer reviewed journal, call for paper commerce, ugc approved journals in mathemetics
The utilization of recycled aggregate on compressive strength of concrete is investigated in this research. In the experimental, five types of concrete mixtures were tested: concrete made with natural aggregate as a control concrete and five types of concrete made with natural fine and recycled coarse aggregate (10%, 20%, 30% and 50%) replacement of coarse recycled aggregate). In this research, physical properties tests of each constitutes material are done according to ASTM procedures at laboratory. After that, concrete mix proportioning is done to obtain the specified 28-day characteristics cylinder compressive strength of 20 MPa (cube compressive strength of 25.64 MPa) and 75+ 25 mm slump according to ACI211 method. In this step, trial mixes are prepared using recycled coarse aggregates, with respect to the 7-day and 28-day compressive strength results. And then, appropriate mix design is selected for specified strength. Moreover, 120 concrete specimens for mix proportion of selected Grade is tested to the 7-day and 28-day compressive strength to establish a standard deviation and their results are compared. For standard deviation, total 720 cubes (120 cubes for each) are cast. In this research, concrete made with 30% recycled coarse aggregate performed best in specified target strength and also in selected slump control among the various proportions
