LSPM施工中常见的质量缺陷及防治措施

The Defect Analysis on Construction Quality of LSPM Flexible Base Course and Its Countermeasure Research

针对高速公路建设中铺筑大粒径透水性沥青混合料柔性基层施工中存在的质量缺陷,确定缺陷的类型,分析其原因,制定了相应的治理对策,通过改进LSPM施工工艺和施工组织,尤其注意控制原材料规格和拌和、摊铺、碾压参数,充分发挥了LSPM的优良性能和功能,减少和避免了质量缺陷的发生。

Aiming at the quality defect existing in the construction of the expressway for paving the large bituminous macadam, this article ascertains the types of defects. The causes are also discussed and studied, and corresponding countermeasures are made. By improving the construction skills and organizations of LSPM, paying attention to standards of raw materials, and controlling the mixing, spreading and pressing parameters, the advantages and excellent functions of LSPM are made use of thoroughly. Thus, the happening of quality defects is reduced and avoided, which is favorable to popularize LSPM.