EFFECTS OF QUARRY ROCK DUST AS A PARTIAL REPLACEMENT FOR RIVER SAND ON THE COMPRESSIVE STRENGTH OF CONCRETE

Abstract

Concrete is the most widely used infrastructure development throughout the world. The widely used raw materials in a concrete are cement, fine aggregate, coarse aggregate and water and in which river sand is used as fine aggregate and it is of prime importance in mix design. Due to increasing demand of river sand, river erosion and other environmental issues have led to scarcity of river sand. Concrete plays a very important role in the construction industry and environmental transportation and consistent use has made the availability and use of river sand less attractive, river sand which is one of the essential materials used in concrete has become expensive and also a scarce material. This study presents the feasibility of the usage of quarry dust as partial replacement for natural sand in concrete. Tests were carried out on cubes of dimension 150mm x 150mm x 150mm using various replacement percentages ranging from 10% to 70% of quarry dust to compare the strength properties of concrete on replacement to that of natural sand concrete. This research work covers several practical tests which includes, Sieve analysis, specific gravity, slump test, and the compressive strength test of concrete.