DEVELOPMENT OF BOND STRENGTH OF REINFORCEMENT STEEL IN SELF-CONSOLIDATING CONCRETE

This paper investigates the bond between self-consolidating concrete (SCC) and reinforcements. The bonding strengths of reinforcing bars were measured using full-scale reinforced concrete (RC) members of SCC and of ordinary concrete. The SCC members were cast without applying any consolidation, whereas the members of ordinary concrete were cast by conventional practice with substantial consolidation and vibration. Results showed that SCC members generated significantly higher bond to reinforcing bars than did ordinary concrete members. It was also found that the reduction in bond due to bleeding and inhomogeneous nature in the case of ordinary concrete was prevented in the case of SCC.