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A STUDY ON RECYCLED CONCRETE AGGREGATES PAVAN P S 1, BABITHA RANI H ,DEEPIKA GIRISH , RAGHAVENDRA K M 2, VINOD P N 1,DUSHYANTH.V.BABU.R ,SHAIK NUMAN1 1Assistant Professor, Department of Civil Engineering, SET, Jain University. 2Student , Department of Civil Engineering, SET, Jain University. Abstract The amount of construction waste has been dramatically
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available materials (i.e. Recycled aggregate concrete). To study the strength properties of green concrete with partial replacement of natural aggregates. To investigate the effect of recycled coarse aggregate on the strength of concrete. To investigate the effect of recycled coarse aggregate on the workability of concrete.
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Abstract： In order to study the axial compression behavior of recycled aggregate concrete filled square steel tube column,5 short columns were tested under axial compression load and numerically simulated by the finite element software ABAQUS. The results show that the notional stress-strain curve,stiffness degeneration,damage accumulation,energy consumption,variation of lateral
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Jun 01, 2012 Abstract. A series of investigations on the mechanical property, durability, and the structural performance of recycled aggregate concrete (RAC) have been carried out in the past 15 years (1996–2011) in China. The achievements of researches on recycled concrete are relatively sufficient to review and share with investigators from other countries.
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Nov 15, 2014 Recycled Aggregate Concrete 1. A STUDY ON “RECYCLED AGGREGATE CONCRETE” BY- NEELANJAN SARKAR MURSHIDABAD COLLEGE OF ENGG. TECH. BRANCH -- Civil engineering Year -- 3rd year (6th sem) 2. I would like to express my gratitude to all those who gave me the possibility to complete this project.
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EXPERIMENTAL STUDY ON RECYCLED AGGREGATE CONCRETE. The recycling of Construction and Demolition Wastes has long been accepted to have the possible to conserve natural resources and to decrease energy used in production. In some nations it is a standard substitute for both construction and maintenance, particularly where there is a scarcity of ...
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Nov 29, 2021 Shrinkage property is a significant indicator of the durability of concrete, and the shrinkage of green recycled concrete is particularly problematic. In this paper, construction waste was crushed and screened to generate simple-crushed recycled coarse aggregate (SCRCA). The SCRCA was then subjected to particle shaping to create primary particle-shaped recycled coarse aggregate
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This is a comparative study on conventional concrete and recycled aggregate concrete. This is a comparative study on conventional concrete and recycled aggregate concrete.
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process that separates the various sizes of recycled aggregate. The cover to the plant is made up of a series of large sieves separates the materials into the size required. Recycling of Portland Cement Concrete stated that the size of screen that used to separate the coarse recycled concrete aggregate and fine recycled aggregate is 3/8 inch.
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Apr 15, 2021 Performance of Recycled Concrete Aggregates: A New Study. Posted on April 15, 2021. It is a basic axiom of environmental stewardship. When possible, use old stuff to make new stuff. The same is true with concrete aggregates. Mixes are
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i. RAP aggregate and fresh coarse aggregate. ii. Fresh aggregate concrete and recycled asphalt Pavement concrete 3. SCOPE OF THE STUDY In this project, the mix design of M30 grade of cement concrete is developed at water cement ratio 0.45 using virgin coarse aggregate (CA). In order to study the potential of RAP
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Jun 01, 2006 In this study various physical and mechanical properties of recycled concrete aggregates were examined. Recycled concrete aggregates are different from natural aggregates and concrete made from them has specific properties. The percentages of recycled concrete aggregates were varied and it was observed that properties such as compressive ...
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Nov 29, 2021 Shrinkage property is a significant indicator of the durability of concrete, and the shrinkage of green recycled concrete is particularly problematic. In this paper, construction waste was crushed and screened to generate simple-crushed recycled coarse aggregate (SCRCA). The SCRCA was then subjected to particle shaping to create primary particle-shaped recycled coarse aggregate
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Pervious concrete is considered to be porous concrete because of its pore structure and excellent permeability. In general, larger porosity will increase the permeability coefficient, but will significantly decrease the compressive strength. The effects of water-cement ratio, fiber types, and fiber
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Mar 10, 2013 A study on local construction and demolition waste used as a Recycled Concrete Aggregate (RCA) in the production of new concrete was investigated by Madan Mohan Reddy.K, Bhavani.R and Ajitha. B. The performance of compressive strength produced by Recycled Aggregate Concrete (RAC) and results are compared with the Natural Coarse Aggregate ...
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process that separates the various sizes of recycled aggregate. The cover to the plant is made up of a series of large sieves separates the materials into the size required. Recycling of Portland Cement Concrete stated that the size of screen that used to separate the coarse recycled concrete aggregate and fine recycled aggregate is 3/8 inch.
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In this work, the interfacial bond performance of recycled aggregate concrete filled stainless steel tube (RAC-FSST) members was investigated through the repeated push-out tests. Three coarse recycled aggregate (CRA) replacements (0, 50% and 100%) and two cross-sectional dimensions were considered in the experimental program.
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Most of the past studies related to recycled concrete aggregates (RCA) dealt with only coarse RCA (CRCA), while there were many hesitations regarding incorporation of fine RCA (FRCA) into concrete. Therefore, the present study analyses the compatibility of FRCA with coarse natural aggregates (CNA) and CRCA based on their combined influence on ...
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Study on the Seismic Performance of Recycled Aggregate Concrete Columns after Freeze-thaw CyclesCN 刘凯华 哈尔滨工业大学
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Jun 01, 2004 Recycled concrete aggregate is also a well-matched material with surrounding cement paste. A good elastic compatibility between the constituents of the recycled aggregate concrete is a big advantage for the system in terms of the mechanical performance. 4. Conclusions. 1.
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This paper presents the findings of an experimental program conducted in order to investigate the shear behavior of fiber reinforced concrete beams made of recycled aggregate. The studied ...
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experimental study, the behavior of recycled aggregate concrete (RAC) incorporating 100% recycled coarse (RC) aggregate is examined. It investigates the workability and mechanical
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The extensive, but fragmented research on recycled concrete aggregates and recycled aggregate concrete, which has been carried out in various parts of the world from 1945 to 1985, has been ...
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Recycled aggregates used in this study were generated by crushing of concrete cubes tested in the laboratory. Based on the results from the study, the recycled aggregate used in the present study fulfilled te codal requirements for RCA with respect the physical and mechanical properties, however the same were lower than those for natural ...
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Apr 15, 2021 Performance of Recycled Concrete Aggregates: A New Study. Posted on April 15, 2021. It is a basic axiom of environmental stewardship. When possible, use old stuff to make new stuff. The same is true with concrete aggregates. Mixes are more sustainable when recycled concrete aggregate (RCA) replaces natural aggregates, at least to a degree.
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This work studies the physical and mechanical properties of recycled concrete aggregate (recycled aggregate from concrete waste) and their influence in structural recycled concrete compressive strength. For said purpose, a database has been developed with the experimental results of 152 works selected from over 250 international eferr ences.
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Study of Recycled Concrete Aggregates. Jitender Sharma , Sandeep Singla. "Study of Recycled Concrete Aggregates", International Journal of Engineering Trends and Technology (IJETT), V13 (3),123-125 July 2014. ISSN:2231-5381. ijettjournal. published
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Nov 24, 2021 • The experimental study revealed that recycled concrete aggregate has a detrimental effect on concrete mechanical performance. Results exhibit that when 100% sand was substituted with recycled fine aggregate in concrete with no fibers, the split tensile and flexural strength was reduced by 14.2 and 14.9%, respectively.
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In this experimental study, the effect of the recycled aggregate on interfacial property, permeability and strength characteristics of the concrete was evaluated in order to examine the relationship between the recycled aggregate and the performance of the hardened concrete. Five types of recycled aggregate and four levels of w/c ratio were tested. The effect of the recycled aggregate was ...
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The aim of this study is to assess the effect of the local admixtures on the mechanical behavior of recycled aggregate concrete (RAC). Physical and mechanical properties of RAC were investigated including density, compressive and flexural strength. The non-destructive test methods (NDT: pulse-velocity and rebound hammer) were used to determine ...
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Aug 01, 2018 Concrete is the most widely used building material in the world. At the same time, the world produces a large amount of construction waste each year. Waste concrete is processed and treated, and the recycled aggregate is used to make pervious concrete, which enables the construction waste to be recycled. Pervious concrete has many advantages such as permeability to water,
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Jul 20, 2017 DOI: 10.3303/CET1759071 Corpus ID: 62884283. A Statistical Study on the Compressive Strength of Recycled Aggregate Concrete @article{Qin2017ASS, title={A Statistical Study on the Compressive Strength of Recycled Aggregate Concrete}, author={Linbo Qin and Zhang Chunhong}, journal={Chemical engineering transactions}, year={2017}, volume={59}, pages={421-426} }
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Study on the Seismic Performance of Recycled Aggregate Concrete Columns after Freeze-thaw CyclesCN 刘凯华 哈尔滨工业大学
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Jun 01, 2004 Recycled concrete aggregate is also a well-matched material with surrounding cement paste. A good elastic compatibility between the constituents of the recycled aggregate concrete is a big advantage for the system in terms of the mechanical performance. 4. Conclusions. 1.
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Concrete recycling gains importance because it protects natural resources and eliminates the need for disposal by using the readily available concrete as an aggregate source for new concrete or other applications. According to a 2004 FHWA study, 38 states recycle concrete as an aggregate base; 11 recycle it into new portland cement concrete ...
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Nov 16, 2021 In this study, modification methods of recycled coarse aggregate (RCA), namely spraying colloidal nano silica (NS) and silica fume (SF) on the surface of RCA, were adopted to enhance the performance of recycled aggregate concrete (RAC). In the RCA modification methods, colloidal NS with different particle sizes (12 nm, 54 nm and 106 nm) and colloidal SF with a particle size of 420 nm
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experimental study, the behavior of recycled aggregate concrete (RAC) incorporating 100% recycled coarse (RC) aggregate is examined. It investigates the workability and mechanical
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