橡胶沥青混合料低温抗裂性能的研究

摘要

Asphalt-rubber mixture have unique advantages in reducing pavement thickness,extending lifetime of pavement,delaying reflection crack,decreasing traffic noise and so on.The asphalt-rubber has been used,which is a kind of mastic and made up of rubber powder and asphalt (A)that bought from US X company.Comparing the low-temper-ature performance of A modified asphalt mixture with the styrene-butadiene-styrene (SBS)modified asphalt mixture. Results show that its low temperature crack resistance performance is superior to the SBS modified asphalt mixture.%橡胶沥青混合料在减薄路面、延长路面使用寿命、延缓反射裂缝、减轻行车噪声等方面具有独特的优势。通过使用美国 X公司研制的复合型胶粉改性沥青胶浆(A)，并对 A沥青混合料与苯乙烯-丁二烯-苯乙烯三嵌段共聚物(SBS)改性沥青混合料的低温性能进行了对比研究，结果表明其低温抗裂性能优于 SBS改性沥青混合料。