PARTIAL REPLACEMENT OF THE AGGREGATE BY WASTE MARBLE AGGREGATE POWDER IN CONCRETE

Abstract

The main objective of this research is to investigate the possibility of utilizing waste marble dust (MD) in cement and concrete production. In present study experimental investigation conducted on optimum marble dust replacement with sand. After cutting and sawing marbles, in large amount of marble slurry produce. This marble slurry disposed to open land area, it make land pollution and harmful to land. In road construction it can use as substitute of fine aggregate, it has good binding property and gives enough strength to concrete and due to this it is suitable to bear heavy load on rigid pavement.
In present study compressive strength of concrete at 7days, 14days and 28 days was checked, and this concrete is prepared by mixing cement, aggregates, water and sand. In further study sand is replaced by marble dust, and then concrete was prepared. The replacement ratios which have been studied were 0.0%, 10%, 20% and 30% by weight. On fresh concrete slump test was preformed to check workability of concrete and after then compressive strength and split tensile strength was checked. Thus marble dust is appropriate substitute of fine aggregates in concrete mix for construction.