摘要
对 4种沥青 ( 1种常规沥青和 3种改性沥青 )进行了 2 5℃针入度、环球软化点、6 0℃粘度、高温下的标准动态剪切以及重复蠕变试验 ,对 5个指标的试验结果特别是改性沥青重复蠕变试验结果进行了分析评价 ,最后由相应的沥青混合料车辙试验对上述指标进行了验证。验证结果表明 ,由重复蠕变试验结果得到的沥青蠕变劲度的粘性成分 Eν与相应的混合料车辙试验结果的排序一致。
Penetration test at 25℃, softening point test, viscosity test at 60℃, standard DSR test and repeated creep test were conducted on four kinds of asphalt which included a conventional one and three kinds of modified asphalt. Much emphasis was given to analyze the repeated creep test. The viscous component (Ev) of creep stiffness obtained from the wheel tracking test for the four corresponding asphalt mixture ranks the same as that obtained from the repeat creep test.
出处
《石油沥青》
2002年第3期27-30,共4页
Petroleum Asphalt
关键词
沥青
高温性能指标
评价
重复蠕变试验
改性沥青
Modified asphalt
High temperature performance parameter
Repeated creep test
