桥面铺装病害处治新方法

The New Method of Pavement Damage Treatment of Bridge Deck

实施计重收费以来,大量重载车辆造成长邯高速公路沥青混凝土桥面铺装的严重病害。铣刨、重铺处理后的桥面铺装很快又遭破坏,已不能满足桥面铺装的路用要求。相比沥青混凝土面层,水泥混凝土面层具有更好的力学指标,添加钢纤维之后力学指标改善效果更为明显,在承受重载交通方面具有明显的优势。同时在水泥混凝土面层上增加2 cm微表处处理面层,能较大改善水泥混凝土面层的行车舒适性。我们结合实际经验采用下面层配筋C50钢纤维水泥混凝土、上面层2 cm微表处、层间水泥基渗透结晶型涂抹层的新方法对桥面铺装进行了处理。从实际使用来看,收到了良好的效果。

According to the practice experience,we take a new structure of pavement to treat with the damage.It is composed by three layers.The fist layer is micro-surfacing coat.The next layer is C50 steel fiber cement concrete.The top between the layers contains partly trait of cement.According to application,the new method has a various advantage.