PARTIAL REPLACEMENT OF DEMOLISHED CONCRETE WASTE AS FINE AND COARSE AGGREGATE IN CONCRETE

Abstract

This experimental study is deals with assessment of behavior of concrete by taking partial replacement of coarse and fine aggregate with demolished waste. M30 grade concrete mix is designed as per IS 10262: 2009. The compressive strength and flexural strength are carried out at 7 and 28 days of curing period to determine the compressive strength and flexural strength and results are compared with normal concrete. The compressive strength and flexural strength of recycled aggregate concrete is relatively lower than the natural aggregate concrete. The 7 Days and 28 Days compressive strength and flexural strength results shows that the replacement of demolished waste by 40% Coarse aggregate and 10 % fine aggregate with normal aggregate have good strength, further increasing the replacement of demolished waste both compressive strength and flexural strength is decreases. The compressive strength of recycled aggregate concrete is reduces by the average value of 7.90% with replacing every 20% of natural aggregate concrete.