Performance of Recycled Aggregate Concrete for M25 Grade Concrete
S. Manasa1, M. Uday Bhaskar2, G. Naveen Kumar3

1S.Manasa, Civil Engineering, Malla Reddy Institute of Technology, Hyderabad, Telangana, India.
2M.UdayBhaskar, Civil Engineering, Malla Reddy Institute of Technology, Hyderabad, Telangana, India.
3G.Naveen Kumar, Civil Engineering, Malla Reddy Institute of Technology, Hyderabad, Telangana, India.
Manuscript received on November 22, 2019. | Revised Manuscript received on December 15, 2019. | Manuscript published on December 30, 2019. | PP: 4694-4700 | Volume-9 Issue-2, December, 2019. | Retrieval Number: B5130129219/2019©BEIESP | DOI: 10.35940/ijeat.B5130.129219
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Abstract: Recycled aggregates (RCA) are the aggregates which are made up of crushed, inorganic particles that are obtained from the construction demolition debris. Now a day’s protection of environment is the ultimate challenge to the society. So the usage of RCA’s is the best alternative for the aggregates which are obtained naturally in the construction activity. The scope of using these recycled concrete aggregates is increasing day by day. It reduces the cost effectively as we are using waste concrete as recycled aggregates. The main focus of this paper is to use find the strength qualities of recycled aggregates so as to use it as an alternative for the natural aggregates in high strength concrete for various construction activities. Comparison of workability, compressive strength, tensile strength, elastic modulus and flexural strength of recycled aggregate concrete is made with natural aggregate concrete. Here M25 grade concrete is taken and the natural aggregates were replaced with recycled aggregates in various percentages of 0%, 25%, 50%, 75% and 100%. The mix design for these replacement ratios are done by using code of IS 10262-2009. In order to determine the properties which were mentioned above a total of 60 cubes, 10 beams and 40 cylinders were casted. The compressive strength and tensile strength of RCA concrete have been determined for 7 days and 28 days where as the modulus of elasticity and the flexural strength of RCA concrete are determined after curing for the period of 28 days. The tests done on RCA concrete are compared with concrete which is obtained by natural aggregates As per IS codification the parameters which were determined are reducing moderately as the amount of aggregates which are recycled is being raised.
Keywords: Elastic Modulus, Tensile strength, compression strength, Recycled aggregates.