枕木又称轨枕，只不过现在所用材料不仅仅是木材，因此叫轨枕更加科学。别看轨枕的模样单调划一，貌不惊人，它的作用可不小。轨枕既要支承钢轨，又要保持钢轨的位置，还要把钢轨传递来的巨大压力再传递给道床。它必须具备一定的柔韧性和弹性，硬了不行，软了也不行。

sleepers, also known as sleepers, are now more than just wood, so they are more scientific. do not look at the monotonous appearance of the sleeper, the appearance is not surprising, its role is not small. the sleeper must support both the rails【敏感词】the position of the rails,【敏感词】transfer the great pressure from the rails to the track bed. it must have a certain degree of flexibility【敏感词】flexibility. if it is hard, it will not work.

1、环保  environmental protection

2、可回收再利用 can be recycled

3、耐腐蚀性高于木枕三倍以上 corrosion resistance is more than three times higher than wooden pillow

4、加工时更容易使其表面变“毛”，安  装在路基上不会滑动  easier to make the surface become "hair" when processing, not to slide on the roadbed

5、使用寿命更长 longer life

塑料轨枕正在被推荐用于无碴桥梁和高架桥结构上，有利于减少恒载。

plastic sleepers are being recommended for ballastless bridges【敏感词】viaduct structures, which helps reduce dead loads.