枕木又稱軌枕，只不過現在所用材料不僅僅是木材，因此叫軌枕更加科學。別看軌枕的模樣單調劃一，貌不驚人，它的作用可不小。軌枕既要支承鋼軌，又要保持鋼軌的位置，還要把鋼軌傳遞來的巨大壓力再傳遞給道床。它必須具備一定的柔韌性和彈性，硬了不行，軟了也不行。

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【敏感詞】the position of the rails,【敏感詞】transfer the great pressure from the rails to the track bed. it must have a certain degree of flexibility【敏感詞】flexibility. if it is hard, it will not work.

1、環保  environmental protection

2、可回收再利用 can be recycled

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

4、加工時更容易使其表面變“毛”，安  裝在路基上不會滑動  easier to make the surface become "hair" when processing, not to slide on the roadbed

5、使用壽命更長 longer life

塑料軌枕正在被推薦用于無碴橋梁和高架橋結構上，有利于減少恒載。

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