改性沥青胶结料性能试验研究

Study on performance tests of modified asphalt binders

采用目前较为常用的四种改性沥青胶结料:橡胶沥青、纤维改性沥青、SBS改性沥青和TPS改性沥青,通过沥青胶结料的主要性能试验对四种改性沥青胶结料及基质沥青的针入度、软化点、延度、粘度、中温疲劳性能和低温抗裂性能等主要性能进行比较与分析,为实际工程选取改性沥青胶结料提供参考。

Four kinds of modified asphalt binder, rubber modified, fiber modified, SBS modified and TPS modified were chooses. Through a series of tests in the lab, such as elastic recovery test, BBR test, DSR test, et al, the performances of the four modified asphalt binders and base asphalt were studied and compared, helping in choosing asphalt binders in practical projects.