沥青路面用橡胶沥青混合料低温疲劳性能研究

Low-temperature Fatigue Properties of Asphalt Rubber Mixture Applied in Asphalt Pavement

采用四点弯曲疲劳试验对比研究了普通沥青混合料、SBS改性沥青混合料和橡胶沥青混合料的低温疲劳性能。结果表明,在温度较低(0℃)时,橡胶沥青混合料的弯曲疲劳性能优于基质沥青和SBS改性沥青混合料,具有较好的抵抗反射裂缝的能力。

Low-temperature fatigue properties of conventional asphalt mixture,SBS modified asphalt mixture and asphalt rubber mixture are studied by means of four points bending fatigue test.The test results can show that when the temperature is lower(0℃),asphalt rubber mixture has better bent fatigue performance and better ability of resisting reflection cracks compared with conventional asphalt and SBS modified asphalt mixture.