Control points of smoothness in modified asphalt concrete pavement construction

On the base of analyzing the pivotal factors which influences the surface quality of modified asphalt concrete road,the paper expatiates the construction points and construction methods in the recontrustion of city road.

The use conditions make clearly that the modified asphalt concrete pavement has the obvious effect for the track resistance in high temperature, crack resistance in low temperature and water damage in rainy season.

Based on the construction practice in Xi’an to Hanzhong Expressway,Sha’anxi province,the Paper presents the quality control method and the main control points for the surface course of SBS modified asphalt concrete pavement,and points out some precautions during the construction,which will provide reference for similar works.

Based on the practice on the highway construction between Xi\'an and Hanzhong in Shanxi Province,the article introduces the design methods and its construction process of the mixing proportion of mixture in the upper-layer materials of SBS modified asphalt concrete pavement,proposes some precautions about this construction engineering,for the reference of similar construction projects.

On the basis of analyses of physical and mechanical characteristic for Crumb Rubber,the process that the rubber modified asphalt concrete is taken shape at twice is brought forward.

According to the special service conditions of the pavement in tunnels, this paper studies the modified gussasphalt concrete used for pavement of tunnels but without adding the natural asphalt.