Experimental Study on Damage Evolution Behavior of Self-Compacting Rubberized Concrete under Direct Tensile Fatigue Loading

Fatigue properties of self-compacting rubberized concrete (SCRC) under axial tension are rare. To explore the fatigue damage evolution of SCRC, the direct tensile fatigue test and residual mechanical test were conducted. According to the experimental results, the linear relationship between the fatigue life and secondary strain rate also exists in tensile fatigue test of SCRC, and the slope value is similar to the compressive and direct tensile fatigue test of ordinary concrete. Further, the downtrend of the residual secant modulus is more obvious than the residual strength. In addition, the direct tensile fatigue damage evolution of SCRC under different stress levels can be predicted by the Isojeh's model.