PRODUCTION OF RECYCLED AGGREGATE FOR STRUCTURAL CONCRETE

PRODUCTION OF RECYCLED AGGREGATE FOR STRUCTURAL CONCRETE

T.C.Venkata Reddy1, D. Lakshmi Sheerisha2, T.A.Swathi3  and M.Rachel4

1Civil Engineering Department & Srinivasa Ramanujan Institute of Technology

2Civil Engineering Department & Srinivasa Ramanujan Institute of Technology

3Civil Engineering Department & Srinivasa Ramanujan Institute of Technology

4Civil Engineering Department & Srinivasa Ramanujan Institute of Technology

Corresponding author: tcvreddy.civ@srit.ac.in

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Abstract - Recycling demolished concrete is crucial for efficient resource utilization and environmental preservation. The study investigates the use of recycled aggregate in structural concrete production. This study focuses on the mix design of recycled aggregate concrete using the IS mix design procedure with a targeted design strength. Five different concrete proportions were investigated, ranging from 0% ,25% ,50% ,75% and 100% replacement of natural aggregates by recycled aggregates. Results were discussed, with a focus on comparing cube compressive strength to cylindrical compression strength and cylindrical compression strength to split tensile strength. The findings were compared with existing standards and provisions, and regression models were formulated to enhance understanding and prediction of concrete properties. This paper contributes valuable insights into the mix design of recycled aggregate concrete, facilitating sustainable construction practices in line with industry standards and regulations.

Key Words: Natural Aggregate Concrete, Recycled Aggregate Concrete, Compressive Strength test, Split Tensile Strength test.