With an ever increasing concern over environmental issues associated with the production of Ordinary Portland Cement (OPC) and also the need for managing wastes, researchers are looking into supplementary cementitious materials (SCMs).Rice Husk Ash (RHA), a agricultural byproduct obtained from burning of millinghusks under controlled temperatures is known for it's high amorphous silica content and therefore it is a high reactive pozzolanic .This study was to determine the possibility and the eff