SBS改性沥青存储稳定性能测试方法研究

Research on the Storage Stability Test Method of SBS Modified Asphalt

针对现行规范测试方法的不足,开发了新的改性沥青存储稳定性测试仪,并利用两种方法对SBS改性沥青的存储稳定性能进行了研究.结果表明,改性沥青存储稳定性的优劣与沥青单独一种组分的含量没有直接关系,同时48h也并非是所有改性沥青离析最严重时间,以及试管法过高估计了改性沥青的离析可能性.因而有必要对现行测试方法进行修正.

With regard to the shortcomings of present storage stability test, a new instrument was developed and was used in studying the storage stability of SBS modified asphalt. Test results indicate that there is not relation between single asphalt component with compatibility, and the 48th hour is not the worst time ofthe isolation ofmodified asphalt. Also the tube test overestimated the possibility of segregation. So it is necessary to modify the active test method.