【摘要】 试验探讨了SEBS作为沥青改性剂应用的可能性 .试验证明SEBS改性沥青具有优良的基本物理性能 ,质量分数为 4 5 %SEBS改性国产青岛沥青的PI提高到 0 35 ,软化点达到 5 9℃ ,5℃延度也达到了 2 6cm .参照国家SBS改性沥青的技术要求 ,SEBS改性国产青岛沥青的性能介于I C和I D之间 ,SEBS改性壳牌沥青的性能介于I B和I C之间 .经紫外光老化试验证明 ,SEBS作为改性剂可大大提高改性沥青的耐光氧老化性能 ,其老化后性能远高于SBS改性沥青 ,提高了改性沥青的使用寿命 .在公路上应用 ,可以增加路面使用寿命 ,减少养护成本更多还原

【Abstract】 The possibility of SEBS applied as a modifier for asphalt was investigated in this research. The test results show that SEBS modified asphalt has good basic physical performances. PI, softening point and ductility of 4 5% SEBS modified Chinese Qingdao asphalt amount to 0 35, 59 ℃ and 26 cm. Values of SEBS modified Chinese Qingdao asphalt are between I C and I D, values of SEBS modified shell asphalt are between I C and I D according to the Chinese standard. Contrast to SBS modified asphalt by ultraviolet aging tests, SEBS has advantages such as anti ultraviolet and aging resistance, which could improve the service life of the modified asphalt and reduce maintenance cost of roads.更多还原