Review on Experimental Investigation on Partial Replacement of Cement and Coarse Aggregate by Rice Husk Ash and Steel Slag in Concrete

The importance of concrete in modem society cannot be underestimated. There is no escaping from the impact of concrete on everyday life. Concrete is a composite material which is made of filler and a binder. Typical concrete is a mixture of fine aggregate (sand), coarse aggregate (rock), cement, and water. Nowadays the usage of concrete is increasing from time to time due to the rapid development of construction industry. The usage of concrete is not only in building construction but also in other areas such as road construction, bridges, harbor and many more. Thus technology in concrete has been developing in many ways to enhance the quality and properties of concrete. This study was made to investigate the nature of partial replacement of rice husk ash and steel slag and its influences on the strength properties of concrete. Properties of hardened concrete like compressive strength and workability was determined for different mix combinations of materials and these values are compared with the corresponding values of conventional concrete. Ordinary Portland cement (OPC) was replaced with Rice Husk Ash (RHA) by weight at 0%, 10%, 20% and 30%.  And steel slag with Coarse Aggregate by weight at 0%, 20%, 40% and 60%.