Comparison of Material Properties Between New Synthetic Sleeper and Timber Sleeper
As a new type of sleeper,synthetic sleeper of fiber-reinforced foamed urethane has shown good effect in repla-cing timber sleeper on special railway lines.However,there is still a lack of comprehensive performance test between synthetic sleeper and timber sleeper,which makes the promotion of synthetic sleeper difficult.According to CJ/T 399-2012 synthetic sleeper of fiber-reinforced foamed urethane;the performance of synthetic sleeper and timber sleeper was tested and compared.The results show that synthetic sleeper meets the standard and higher than timber sleeper.The high strength glass fiber ensures the strength,elasticity and fatigue performance of the synthetic sleeper,and no damage occurs after 2 million cycles of loading.The resin and glass fiber used in the synthetic sleeper have good insulation and flame retardance,making its surface resistivity 4 orders of magnitude higher than that of the unoiled timber sleeper.
万方数据
维普
