据西德联邦公路事业局调查,高速公路水泥混凝土路面的损坏主要是由于面层和基层间的渗水引起的,结构措施或合理设计都不能很快地将渗水排掉。在重型车辆行驶时,混凝土路面的细骨料会被渗水腐蚀冲 According to the survey conducted by the West German Federal Highway Administration, damage to expressway cement concrete pavements is mainly caused by water seepage between the surface layer and the grassroots, and structural measures or rational design can not quickly eliminate seepage water. When heavy vehicles are driving, the fine aggregate of concrete pavement will be seeped and washed away