在沥青混合料的铺筑施工上,必须在施工的全过程使沥青混合料从拌制到摊铺的各个环节均保持在最佳的级配状态,即保持最好的设计密度,以形成混合料的的稳定性、柔性和耐久性。由于混合料在拌制、装卸、摊铺当中的操作不善而产生的粗粒料的离析,势必要使混合料的级配成份受到改变,而生产路面工程上的质量缺陷,还导致在路面使用期间出现粗糙的斑块、裂纹等症状。路面裂纹是路面破坏当中常见的现象,尤其在北方寒冷地区最普遍存在的症状,一般多数是看成与基、底层的承载力不足和交通车辆的轴 Asphalt paving construction, the entire process must be in the asphalt mixing process from mixing to paving in all aspects of the state to maintain the best grading, that is, to maintain the best design density to form a mixture Material stability, flexibility and durability. Due to the segregation of coarse aggregate due to improper operation of the mixture during mixing, loading and unloading, and paving, it is inevitable that the gradation composition of the mixture is subject to change and the quality defects in the production of pavement engineering also result in the use of the pavement During the rough plaque, cracks and other symptoms. Pavement cracks are a common phenomenon in the pavement damage, especially in the northern cold areas most common symptoms, most of them are generally seen as the base and the undercarriage of the inadequate capacity and transport vehicles axis