沥青路面大修结构组合研究

根据沥青路面新建结构和大修结构的不同,提出沥青路面大修结构组合设计原则,在总结沥青路面抗开裂、车辙和水损害的结构措施以及国内外的半刚性基层、柔性基层、组合式基层和刚性基层沥青路面结构的基础上,针对旧沥青路面主要病害已知的特点,分别提出抗开裂、车辙和水损害的沥青路面大修结构组合,可以有效避免或推迟大修后的沥青路面出现与旧路面相同的病害,并可为新建沥青路面结构的选择提供借鉴。

Selection of Pavement Structures for Reconstruction of Asphalt Pavements

According to the difference between new and rehabilitated structures, the principles to select rehabilitated structures are given. Three major distresses, including cracking, rutting and water damage, are considered. The measures to prevent these three distresses are summarized. Some new structures of asphalt pavements with base courses made of flexible, semi - rigid or rigid materials are listed. Then the anti - cracking structures, the anti - rutting structures and the anti - water damage structures, needed in the reconstruction of asphalt pavements, are recommended. The recommended rehabilitated structure can prevent or delay the appearance of the pavement distresses which have appeared on the old pavements and can also be referred to by new structures.