STRENGTH PROPERTIES OF HIGH STRENGTH CONCRETE USING RECYCLED CONCRETE AGGREGATE

Abstract

The demand for creativity and luxury over the world is increasing the demolition activities for the construction of new buildings in place of old ones. Thus huge amount of demolition wastes is being generated around the world causing a problem for its disposal. Further to meet the needs of growing construction industry there is a heavy demand for natural aggregates because of which they are getting depleted. Hence to overcome the depletion and for making a sustainable world the use of recycled aggregates came into picture. Recycled aggregates have found their use in many works like pavements, kerbs etc. but they are rarely used for engineering works. This project aims at finding the usage of recycled aggregates for high strength concrete. The present research studies the strength of concrete made with different replacement levels of natural aggregates with recycled aggregates. The replacement ratios considered are 0.54, 0.67 and 0.81. Specimens are made to find the compressive strength, tensile strength and flexural strength at different W/B ratios and different F.A to T.A ratio and thus the applicability is studied.