EFFECT ON STRENGTH PROPERTIES OF CONCRETE BY PARTIAL REPLACEMENT OF CEMENT WITH CALCIUM BENTONITE AND FLY ASH

The main objective of the work is to find out the effectiveness of fly ash and bentonite collectively on the concrete strength. In this work it was proposed that the cement is replaced with (5%, 7.5%, 10%, 12.5%, 15%). Calcium bentonite and with (5%, 7.5%, 10%, 12.5%, 15%) fly ash respectively. For investigating the potential use of Calcium bentonite and fly ash in cement concrete by replacing. Ordinary Portland cemen t(OPC) and evaluate the impact of these materials on the strength characteristics of concrete. Many of the developing countries are replacing the materials with the materials which are recycled so as to minimize the environmental hazards and safe guarding the natural resources. Cubes and cylinders were casted with M30 design mix and compressive, split tensile strength were studied for 3, 7, 28 days and compared with conventional concrete based on the test results, the various strengths were identified.