桥面铺装层材料设计

Material Design of Bridge Pavement

为从根本上探明桥面铺装层易损坏的原因 ,指导材料设计 ,采用在桥面铺装层中布置应变片的方法 ,对桥面铺装层进行了结构力学分析 ,进而配制出了弯曲韧性高、层间粘结强度高的新型桥面铺装层材料。

In order to prove the damaging reasons of the bridge pavements and guide the material design, the structure mechanical analysis method was used through laying the stress pieces into bridge panels. It is shown that the poor bending flexibility and low adhesive strength between the pre laid concrete and newly pavement are the main reasons of the damaging. At last, We design one kind of newly material with steel fiber and polymer as well as early strength mixture and apply this kind of material to engineering. The repairing effect is good.