EXPERIMENTAL STUDY ON USE OF CRUSHED STONE DUST AND MARBLE SLUDGE POWDER AS REPLACEMENT TO NATURAL SAND IN SELF COMPACTION CONCRETE

This paper presents the use of crushed rock dust and marble sludge powder as replacement t o natural sand in preparation of self compaction concrete. The mixture of crushed rock dust and marble sludge powder with three different proportions of super plasticizer (0.35, 0.3, 0.25 were used for making concrete flow. The tests carried out for evalu ation of mix design are compressive, split tensile, flexural strength and acid immersion tests of 5% of H 2 SO 4 and HCL solutions. Results showed that the use of crushed rock dust and marble sludge powder can be used as substitute for natural sand replacemen t