长大纵坡路段及大桥桥面一直是沥青面层产生车辙、推移等病害影响较为突出的薄弱路段,本文主要以分析黄延高速公路扩能工程在长大纵坡路段及大桥桥面中面层施工应用中采取掺加聚酯纤维,优化调整SBS改性沥青混合料AC-20C级配组成,改变长大纵坡及大桥桥面与普通路基段落不同的油石比,在施工过程优化施工工艺等技术措施的运用,从而达到抗车辙改善结构层性能的要求。 Longitudinal longitudinal section of the bridge and bridge deck has been the asphalt layer of rutting, displacement and other diseases more prominent weak sections, mainly to analyze the Yellow River Expressway expansion project in the growth of longitudinal slope sections and the bridge deck In the construction application of the floor, polyester fiber is added to optimize the grading of AC-20C mixture of SBS modified asphalt mixture, and to change the ratio of oil to rock of the longitudinal bridge and the bridge deck to the ordinary subgrade sections. The construction process is optimized And other technical measures to achieve anti-rut to improve the structural performance requirements.