An Experimental Study on Concrete with Partial Replacement of Cement by Rice Husk Ash and Coconut Shell Ash

Abstract The high cost of conventional construction material affects economy of structure. With increasing concern over the excessive exploitation of Natural aggregates, lightweight aggregate produced from waste is a viable new source of structural material. In this work we have partially replaced cement with coconut shell ash and rice husk ash. The time has come for the review of progress made in the field of development of binary blended cement concrete. The cost of cement used in concrete works is on the increase and unaffordable, yet the need for housing and other constructions requiring this material keeps growing with increasing population, thus the need to find alternative binding materials that can be used solely or in partial replacement of cement. The environmental impact of OPC is significant because its production emits large amount of CO2. Utilization of industrial soil waste or secondary materials has been encouraged in construction field for the production of cement and concrete because it contributes for reducing the consumption of natural raw materials as resources. Reduction of cement usage will reduce the production of cement which in turn cut the CO2 emissions. Keywords: Construction, CO2, Convectional and Materials