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由于厚度较薄和受力情况复杂 ,桥面铺装层极易发生破坏。采用包括钢纤维混凝土和聚合物混凝土在内的许多新材料对桥面铺装层进行修补、修复 ,效果都不十分理想。通过掺加聚合物和微膨胀剂 ,并利用数学方法对钢纤维混凝土进行了优化设计 ,制备了一种可以减小铺装层厚度的超薄型高性能铺装层材料。利用该种材料对湖北省武黄高速公路部分厚度在 40～ 80 m m的桥面铺装层进行修复 ,取得了非常理想的效果
As the thickness is thin and the force situation is complex, the deck pavement is prone to damage. Many new materials, including steel fiber concrete and polymer concrete, are used to repair and repair bridge deck pavement. The effect is not very satisfactory. By adding polymer and micro expansive agent and using mathematical method to optimize the design of steel fiber reinforced concrete, a kind of ultra-thin high-performance pavement material can be made which can reduce the thickness of pavement. This kind of material is used to repair part of the 40 ~ 80 m-thick deck pavement of Wu-Huang Expressway in Hubei Province and has achieved very good results