Fast remedial technique and its effect of slab with exposed gravel in bridge and highway;

This paper summarizes the coal slack resource in China,and its study and application over world;analyzes the performance of coal slack cement concrete;putts forward a new application way of coal slack.

According to traffic safety and driving quality of exposed-aggregate cement concrete pavement,through carrying out a large number of laboratory test and constructing trial road and testing it,the article analyzes major evaluation indexs such as number of exposed-aggregate point,texture depth,pavement driving-noise,surface level of exposed-aggregate.

Key technique for construction control of exposed aggregate concrete;

Application of exposed aggregate concrete pavement(or bridge deck);

The study on impact performance of flexible fibers concrete;

On the basis of engineering practices,the causes of concrete road surface cracks are analysed,and the technical treatment measures are put forward.

Quality supervision of cement concrete pavement construction;

Study on the mechanics performance of emery cement concrete;