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文章针对机场和高速公路等大幅面沥青面层的HMA加铺,以上海虹桥国际机场大修工程为例,从旧路的病害处理、玻纤格栅与基质沥青的喷洒、加铺SMA混合料的质量控制、SMA混合料的施工等方面,包括各个工序要点与材料性能,介绍了一套完整的HMA加铺技术和施工工艺。目的是以实际工程为例,探讨在SMA加铺施工的工程过如何在比较宽的范围进行摊铺作业并减少施工中的接缝,以及如何降低反射裂缝/尽量延缓加铺沥青混凝土的反射裂缝产生的速度、保证加铺层的设计寿命。
In this paper, the HMA overlay of large format asphalt pavement such as airport and expressway is taken as an example. Taking the overhaul project of Shanghai Hongqiao International Airport as an example, from the treatment of the old road, the spraying of fiberglass grating and matrix asphalt, Quality control, construction of SMA mixture, etc., including the main points of each process and material properties, introduced a complete set of HMA overlay technology and construction technology. The purpose is to take practical engineering as an example to explore how works in SMA overlay paving work in a relatively wide area and to reduce seams in construction and how to reduce reflected cracks / retarded reflective cracks in asphaltic concrete Produced speed, to ensure that the overlay design life.