Quarry Dust For Sand Replacement In Concrete. Jun 01 2018nbsp018332Concrete used was prepared by replacing 25 and 100 of sand by weight with quarry dust Also conventional sand concrete was prepared as reference concrete for comparison 100 mm cube and 100 215 100 215 500 mm plain beam specimens were prepared using concrete strengths ranging from 25 Nmm 2 to 47 Nmm 2 for the three .