ABSTRACT
The reasons for the lack of durability of concrete sleepers can be divided into two categories: one is caused by the characteristics of concrete itself, and the other is related to the environmental status of sleepers when they are used. The durability of concrete sleeper can be improved when mineral admixture and air entrainment agent are added at the same time; The durability of concrete sleepers is the best when fly ash and slag powder are mixed in proportion. If the curing temperature is too high, the carbonization resistance of concrete sleeper will be reduced.
