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目前,苏联筑路业越来越广泛地采用无机胶结料加固土,尤其是硅酸盐水泥加固土铺筑柔性路面的基层。用这种方法能使挠曲度值减少,因此,沥青混凝土面层的疲劳现象亦得以减少,路基土的含水量得以降低,从而提高了路基的承载能力。但是,用无机胶结料作基础的结构层也具有某些缺陷,这就是,沥青混凝土面层与基层的联接强度不够高。
At present, the construction of the road building industry in the Soviet Union more and more the use of inorganic cementitious materials reinforced soil, especially Portland cement reinforced soil paving the grassroots flexible pavement. By this method, the deflection value can be reduced. Therefore, the fatigue of the asphalt concrete surface layer is also reduced, and the water content of the subgrade soil is reduced, so that the bearing capacity of the roadbed is improved. However, structural layers based on inorganic binders also have some drawbacks, which is that the bonding strength of the asphalt concrete surfacing layer with the base layer is not high enough.