采用聚酯玻纤布对反射裂缝及新、旧路面拼接缝进行病害防治

沪宁高速公路改扩建工程采用以“两侧拼接加宽为主、局部分离加宽”的施工方法,要求在不改变原沪宁高速公路技术标准的情况下将老路扩建为八车道。鉴于目前尚无高速公路拓宽工程的设计与施工规范可循,采用聚酯玻纤布对高速公路新、旧路面半刚性基层拼接施工或旧沥青混凝土路面面层铣刨维修后的拼接缝或裂缝进行处理,能有效防止反射裂缝产生和水破坏,就此对聚酯玻纤布性能及施工工艺进行分析研究。

Distress Prevention and Treatments for Reflection Cracks or Joint of New and Old Road Surface Used by Polyester Bolivia Filament Cloth

The Shanghai to Nanjing Expressway extension project used by the method of "two sides splicing widens primarily,the local separation widens".The old road is extended to eight traffic lanes in the condition of the technical standard of the original Shanghai to Nanjing Expressway is not changed.At present,in view of the fact that still did not have the design and the construction standards of the expressway extension project,the polyester Bolivia filament cloth is used in the splicing construction of the new and the old half rigid base or the joints or the cracks treated after the old bituminous pavement surface recapping,which can effectively prevent the reflection crack production and the water destruction.The analysis and research on the performance and the construction technology of polyester Bolivia filament cloth are carried out.