二灰碎石基层的施工及质量控制.doc

二灰碎石基层的施工及质量控制 摘　要 我国国民经济的提高带动了我国城市道路交通事业的飞速发展，使我国城市道路交通承载量、交通量不断增加，如何提高城市道路建设质量成为了迫在眉捷的问题。路面基层作为路面结构的承重层，承担并分散了由面层传来的车辆荷载垂直应力，并且在多变的气候、水文条件下自身必须具有足够的稳定性，才能保证道路的通行能力，路面基层的质量会直接影响道路的建设质量，路面基层的施工及质量控制是道路施工中的重要环节。二灰碎石基层具有优良的力学性能、整体性强、水硬性好，比水泥稳定碎石基层具有好的抗裂性能和抗冻性能，二灰碎石基层所用的料来源丰富，它将工业废料粉煤灰变为良好的筑路材料，减少了占用土地和环境污染，并且施工方便，因而在高等级公路的建设中使用得越来越普遍。关键词： Abstract Chinas national economy progress has led to the rapid development of road transportation in our city, our city road traffic capacity, traffic volume is increasing, how to improve the quality of city road construction has become the imminent problem. Pavement as bearing layer of pavement structure, undertake and scattered by the surface layer to load the vertical stress, and in the changing climate, hydrological conditions must possess sufficient stability, to ensure the road capacity, quality of the pavement structure of road construction quality directly influence, construction and quality control pavement is an important link in the construction of roads. Two ash macadam has excellent mechanical performance, strong integrity, good hydraulicity.It is better than that of cement stabilized macadam base crack resistance and frost resistance, and two ash macadam base construction with rich sources of raw materials, it will be industrial waste fly ash into a good road building materials, to reduce the occupation of land and the environment pollution, green environmental protection, and convenient construction, and in the construction of high-grade highways are used more and more widely. But because of the construction process is not perfect and the road operation exposed many problems and defects of pavement damage, appears only to solve two ash macadam construction process of these problems, the defects and problems it overcome to the lowest degree, can guarantee the quality of the project, the construction and quality control of two ash macadam in order to ensure the quality of road traffic construction. Based on the