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采用双重和多重复合技术， 在预应力高强混凝土轨枕的基础上分别制备了预应力钢纤维高强混凝土和预应力钢纤维硅灰高强混凝土特种轨枕；在５００ ｋＮ 伺服液压疲劳试验机上测试了三个系列轨枕疲劳荷载时裂缝宽度和高度的变化规律．研究结果表明，由于钢纤维的阻裂效应，显著提高了高强混凝土轨枕的抗疲劳性能；再因硅灰的填充效应、微集料效应和火山灰效应改善了高强混凝土内部的微观结构，尤其是界面结构， 使预应力钢纤维高强混凝土轨枕的抗疲劳性能进一步提高．该轨枕不仅可用于特殊应力下承担复杂荷载，而且可带裂缝工作．
Using double and multiple composite technology, prestressed steel fiber high-strength concrete and pre-stressed steel fiber silica-grey high-strength concrete special sleepers were prepared on the basis of prestressed high-strength concrete sleepers; three series were tested on a 500 kN servo-hydraulic fatigue tester. The change law of width and height of cracks in sleeper fatigue load. The results show that due to the cracking effect of steel fibers, the fatigue resistance of high-strength concrete sleepers is significantly improved, and the internal microstructure of high-strength concrete is improved due to the silica ash filling effect, micro-aggregate effect and volcanic ash effect, especially the interface. The structure makes the anti-fatigue performance of prestressed steel fiber high strength concrete sleeper further improved. The sleeper can be used not only for special loads under complex loads but also with cracks.