Study on Partial Replacement of Silica Fume Based Geopolymer Concrete Beam Behavior under Torsion

The utilization of Ordinary Portland Cement (OPC) cause hazard due to emission of CO2. To avoid this, Pozzolanic material is used as a substituted for OPC. These are activated by alkaline to form a gel known as aluminosilicate which acts as a binder in concrete. In this study cement is partially replaced by Silica fume (SF). The torsional behaviour of the conventional concrete and SF based geo-polymer concrete is tested with varying percentage of longitudinal reinforcement. The results were compared in terms of torque, twist, stiffness degradation, curvature ductility, torsional toughness and crack width.