STUDIES ON UNPROCESSED STONE DUST AS FINE AGGREGATE IN MAKING CONCRETE

Experimental investigation was carried out to establish the feasibility of unprocessed stone dust as fine aggregate in place of river sand which has become a scarcity now-a-days, by casting cube and determining the compressive strength for t he two grades of concrete M15 and M20. The result obtained are compared with conventional concrete. It is concluded that compressive strength at 28 days of unprocessed stone dust used as fine aggregate in concrete gives 35% higher strength for M15 and 4% for M20 grade concrete when compared to the reference concrete.