BOND SPLITTING STRENGTH OF STRAIN-HARDENING CEMENTITIOUS COMPOSITES MEMBERS WITH SMALL REINFORCEMENT SPACING

Abstract

In this study, pullout loading test and simple beam test is conducted to investigate bond splitting behavior of SHCC (Strain-Hardening Cementitious Composites) members with small reinforcement spacing. As the results of the experiments, the brittle behavior due to bond splitting is restrained by the confinement of fibers. The experimental bond strength shows higher value than calculated strength by conventional formulas for concrete members. The bond splitting strength of SHCC can be evaluated by the thick cylinder model assuming that SHCC around the reinforcement is subjected to “plastic stage”.