目前,各国修建的公路特别是高速公路主要是水泥混凝土路面(下简称混凝土路面)和沥青混凝土路面(下简称沥青路面)。沥青路面的优点是造价低,施工期短,铺筑完工后几乎马上可以通车,路面没有接缝,行车舒适等;缺点是路面容易损坏、在同样的使用期内维护的费用大等。混凝土路面的优点是寿命 At present, the roads built in various countries, especially the expressways, are mainly cement concrete pavement (hereinafter referred to as concrete pavement) and asphalt concrete pavement (hereinafter referred to as asphalt pavement). Asphalt pavement has the advantages of low cost, short construction period, paving can be opened to traffic almost immediately, the road without seams, driving comfort, etc .; disadvantage is that the road is easily damaged in the same period of maintenance costs and so on. The advantage of concrete pavement is life expectancy