通过室内试验研究了改性剂、石料级配和沥青标号对沥青混合料低温抗裂性能的影响,试验结果表明:SBS改性剂对沥青混合料的低温抗裂性能提高不显著,大粒径石料可以提高混合料低温弯拉强度,高标号沥青可以提高混合料的低温弯拉应变。 The effects of modifier, stone gradation and asphalt grade on the anti-cracking performance of asphalt mixture at low temperature were studied through laboratory experiments. The results show that SBS modifier has no obvious improvement on low temperature cracking resistance of asphalt mixture, while large particle size The stone material can improve the bending strength of the mixture at low temperature, and the high-grade asphalt can improve the low-temperature bending strain of the mixture.