From some aspects such as improving anti-rut ability of bitumen mixtures,improving structural design and application of secondary blending craft,it elaborates on how to protect motive rut on bitumen road surface,and gives some rational advice,so as to ensure the normal usage of bitumen road surface.

The article deals with the applied techniques of hot mix plant recycled mixture from aspects such as the recycled material sources, proportioning and mixing of the mixture.

According to the characteristics of the concrete and commodity concrete,the factors affecting concreteproducing the rift various,from raw material,the mixture ratio,mix,construction,maintenance, and so on the paper analyzes the reasons why create the concrete crack is caused.