Experimental Study on Use of Dismantled Aggregate as Natural Coarse Aggregate

Abstract

In the present era with lots of development and new research, many waste materials are increasing and the natural resources are decreasing, in this situation it is required to reuse the waste material. In construction field the waste material of dismantled buildings, can be reused for small construction and road works. In order to this the combinations are being made and incorporated. In this research the dismantled aggregate which is purely a waste material, fly ash and admixtures are used. The dismantled aggregate in 0%, 25%, 50%, 75% and 100% are taken in the replacement of natural coarse aggregate. The cement is being replaced with fly ash of 5%, 10%, 15%, 20% and the water reduction admixture up to 2% by weight of cement. The various tests were conducted on natural coarse aggregate and dismantled aggregates such as specific gravity of coarse aggregate, specific gravity of fine aggregate, water absorption of aggregate, impact value test, slump cone test, particle size distribution test, loss angles test etc. Cubes were casted by designing M35 mix and tested for 7 days and 28 days to find compressive strength. The characteristics strength of concrete is compare the conventional concrete and recycle concrete.