Solve the uneven or unfirm road surface caused by different paving. Improve quality of road surface greatly. Make road surface paved by different times integrated completely.

• 解决沥青路面摊铺过程中，一次与二次摊铺时，冷热接缝不平、不牢等问题，多层结合效果好，提高了平整度，使两次摊铺的路面浑然一体。