There is a large amount of demolished waste generated every year in India and other developing countries. Since very small amount of this waste is recycled or reused. So, disposing this waste is a very serious problem because it requires a large amount of space. This project is experimented to reduce the cost of concrete. Aimed at the study, design mix of grade M25 was prepared using IS10262-2009. Thereafter, the replacement of different constituents of concrete, one at a time was carried out

more »

... replacing these with the different sieved fractions of crushed demolition waste. The demolished concrete was mixed with the concrete in 10%, 15%, 20%. Cubes were casted with concrete mixes and subjected to curing for 7 days, 14 days, 28 days and their strength is determined. Test result shows that the strength of the concrete increase when the demolished waste is replaced, as the demolished concrete percentage increased the strength of the concrete also increase. For reducing the cost and natural aggregate we can replace with the demolished concrete, so that the strength of the concrete increase.