Abstract:In order to reasonably recommend the asphalt mixture with superior low temperature performance on the pavement surface of Yanqing Chongli Expressway, three asphalt mixtures (SMA-13, SUP-13, AC-13) were selected first, and the low-temperature cracking performance of the three asphalt mixtures was studied by indoor test method under the same SBS modified asphalt conditions. Then based on the above low temperature performance superior asphalt mixture, replace SBS modified asphalt for epoxy asphalt, study its low temperature performance changes. The results show that SMA-13 asphalt mixture should be used in the surface layer of asphalt surface of Yanqing Chongli Expressway to resist low temperature effects, and SMA-13 epoxy asphalt mixture should be used if economy permits, and for areas with average minimum temperature below -5℃ in the winter of the year, SMA-13 asphalt mixture should be used as asphalt pavement surface layer, while AC-13 asphalt mixture as asphalt pavement surface layer should be used for areas where the average minimum temperature is higher than 15℃ in winter.