Effect on blending of supplementary cementitious materials on performance of normal strength concrete

Sustainability and scarcity in resources are the two major issues to be dealt within the present scenario by effective utilization of alternative materials. In this present study, an attempt has been taken to study the effect of supplementary materials such as fl y ash and silica fume as a partial replacement to cement and steel slag and M-sand as a replacement to river sand on strength and durability of concrete. In this study, concrete specimens were prepared based on fi ve different mixes by varying the percentages of these supplementary materials. Various mechanical properties like compressive strength, split tensile strength and fl exural strength were performed to ascertain the mix with optimum levels of replacement of supplementary materials for cement and fi ne aggregate. Durability property like water absorption test was performed on the mix with optimum values of strength. Results revealed that mix with higher percentages of steel slag, optimum level of silica fume and fl y ash have shown higher strength and lesser permeability in concrete.