Performance Study of Laterised Concrete Made with GGBS and Silica Fume as a Partial Replacement of Cement

Abstract

Abstract -Sand has been utilized in the construction of civil engineering projects for a long time as a fine aggregate. As building costs have been rising over the past few years, the source of high-quality sand has been rapidly depleting. Now, laterite is thought to be a potential sand substitute for concrete mixtures. In this Paper, GGBS and silica fume is used as a partial cement replacement in laterised Concrete. This research deals with the viability study of GGBS and silica fume as partial replacement of cement in laterised concrete. Mixes to be prepared with replacement content of 5%,10%,15%,20% and 25% by the weight of ordinary Portland cement with GGBS and optimum silica fume (10%). However, the addition increases the strength levels with the aid of super plasticizer. Additional mixing lowers the laterite content to 15%. Same 15% of the weight of laterite soil can be used as partial replacement of sand exhibited the finest outcomes. As a result, it is showing use of laterite as a possible partial replacement for sand. In this research mixes are prepared by keeping optimum silica fume and Laterite soil constant for M1, M2, M3, M4, M5 and M6. Physical and mechanical experiments of M30 grade of concrete were used to analyze how these materials affected such attributes as compressive strength, split tensile strength, and flexural strength. Key Words: Laterised concrete, Ground granulated blast furnace slag (GGBS), Silica fume, Laterite soil.