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Behaviour of Concrete on Replacement of Sand with Quaries Stone .,Key Words: Concrete, Compressive strength, Quarry Dust, Replacement,. Sand. 1. INTRODUCTION. Quarry dust, is a by-product releases from the cutting and crushing process of stone which is a concentrated material to use as fine ..,»ball mill in iron ore beneficiation pdf,Recent Trends in Replacement of Natural Sand With,,Using different proportion of these quarry dust along with sand the required concrete mix can be obtained. This,10 million tonnes blast furnace slag is currently being generated in the country from iron and steel industry. The,The ideal percentage of the replacement of sand with the quarry dust is 55 per cent to 75 per cent inUse of Quarry Dust as fine aggregates by Partial,,Keywords: - Quarry dust, Sand, Concrete, Compressive strength.,iron ore, scrap iron and fly ash Gypsum, CaSO 4.2H 2 0: found together with limestone.,Replacement of fine aggregate by quarry dust at partial replace results the increase in strength of concrete.