Thin film oven aging behaviors of SB S modified asphalts were studied by infrared spectrum, gel permeation chromatography, dyn amic mechanical property analysis.

用红外光谱、凝胶渗透色谱、动态黏弹仪研究了苯乙烯-丁二烯嵌段共聚物（SBS）改性沥青的薄膜烘箱老化行为。