Experimental Study of Fatigue Performance of Steel Fiber Reinforced Polymer High Strength Concrete
钢纤维聚合物高强混凝土疲劳性能的实验研究

Steel fiber reinforced polymer high strength concrete (SPHC), a new type of concrete bridge material, was recently developed by our research group. In order to clarify the fatigue performance of SPHC, comparative analysis method was adopted to experimentally study SPHC applied in a real bridge and the C60 concrete that has similar static mechanical properties as SPHC. Furthermore, experimental S-N curves of above mentioned two materials were obtained. Results show that comparing with C60 concrete, the fatigue performance of SPHC material has greatly enhanced. Its toughness and crack resistance increase due to the incorporation of steel fiber and polymer latex. The application of this new material will effectively improve the fatigue life of bridge structure.