橡胶沥青SMA-13低温季节施工关键技术

Key Construction Technology of Rubber Asphalt SMA-13 in Low Temperature Season

连云港主体港区东疏港高速公路隧道路面“白改黑”项目低温季节施工,通过严格进行各道工序把控,橡胶沥青SMA-13表面温度在某一范围内大胆尝试胶轮碾压,压实度、渗水系数等关键指标均满足了设计文件要求,合格率较传统钢轮碾压均有大幅度提升,均保持在90%以上,大大提升了低温季节路面施工质量,为低温季节橡胶沥青SMA-13施工提供了很好的经验借鉴。

The low temperature season construction of Dongshugang Expressway Tunnel Pavement “White to Black” in the main port area of Lianyungang Port is carried out. Through strict control of various procedures, the surface temperature of rubber asphalt SMA-13 is boldly tried to roller compaction in a certain range. The compactness, water permeability coefficient and other key indicators meet the requirements of the design documents, and the qualification rate is greatly improved compared with the traditional steel wheel rolling, all of which are maintained at more than 90%, which greatly improves the quality of pavement construction in low temperature season and provides a good experience for rubber asphalt SMA-13 construction in low temperature season.