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本文针对G045线界古路沿线高寒阴湿地区气候特点和沥青路面病害特征,提出了采用双层橡胶沥青碎石表面层处治技术的结构组合、材料要求、技术参数、施工工艺和质量控制要点。通过实体工程实践表明,该结构与传统普通沥青混凝土罩面相比具有结构厚度薄、工程造价低、施工速度快且机动灵活等优势,其优越的防水、抗滑、抗裂、抗车辙和耐久等技术特性,为高寒阴湿地区沥青路面预防性养护或罩面处治提供了一项新型技术方案,解决了高寒阴湿地区公路反复养护维修的技术难题,具有良好的经济、社会及环保效益,推广应用前景十分广阔。
In view of the climatic characteristics and the characteristics of asphalt pavement diseases along the G045 line in the old and cold regions, this paper puts forward the structural combination, material requirements, technical parameters, construction techniques and quality control points of the double layer rubber asphalt pavement surface treatment technology. The physical engineering practice shows that the structure has the advantages of thin structure thickness, low construction cost, quick construction speed and flexible maneuvering compared with the conventional common asphalt concrete overlay. Its superior waterproof, anti-skid, crack resistance, anti-rut and durability Technical characteristics, provides a new technical scheme for the preventive maintenance or overhaul treatment of bituminous pavement in cold and damp alpine regions, solves the technical problems of repeated maintenance and repair of highway in alpine and humid regions, has good economic, social and environmental benefits, and promotes Application prospects are very broad.