新型复合改性沥青混合料添加剂在廊沧高速中的应用

Application of New Type of Compound Additive Modified Asphalt Mixture in Langcang Expressway

选用车辙试验、浸水马歇尔试验及低温小梁弯曲试验,进行了不同级配的复合添加剂改性沥青混合料性能研究。研究得到的复合改性沥青混合料具有良好的高温性能、低温抗裂性能和水稳定性,能满足重载交通对沥青混合料组成的要求。

Using rutting test, soaked Marshall test and bending beam test at low temperature, the performances of compound additive modified asphalt mixtures with different gradations were studied. The research results indi- cate that the developed compound additive modified asphalt mixtures manifest des formance, crack resistance at low temperature and water stability, and can meet the ture composition for high volume traffic. rable high temperature per requirments of asphalt mixture composition for high volume traffic.