Taking the test section in western segment of the belt express with lime-flyash gravel base in Datong City as the example, this paper sums up the test pavement scheme.

Through sanding test,this paper calculates the surface texture s depth of bituminous pavement and aspect ratio between ETD and texture,carries out test selecting the points with different degrees of segregation,and shows the influences of segregation on the performance of bituminous pavement through contrast of testing data,in order to solve the problem of segregation in bituminous pavement.