Vibration screener is a kind of important equipment which could ensure the gradation of mixture.

The results have shown that when most other conditions are of consistencg,the asphalt mixtures present the obviously different mechanical properties and performance if the gradation of aggregate mixture are changed.

Based on the characters of asphalt rubber, the production and mixture design as well as the construction technology, gap mixture asphalt are introduced in the paper.

Application of Bailey method in design of fine graded mixture;