SBS改性沥青的两种典型亚微观结构

应用粘度剂、显微镜等方法，测定了不同SBS改性沥青的系列粘度数据和显微照片，通过分析这些数据和照片，研究了改性沥青结构和性质之间的关系。发现在相同SBS剂量下的改性沥青具有不同的亚微观结构，其中有两种差别较大的典型结构。结果表明，改性沥青亚微观结构的差异在很大程度上影响宏观性质，具体表现在延度、稳定性、粘度等指标上有较大差别。

Two typical sub-microscope structures of SBS modified asphalt

The viscosity of several kinds of modified asphalts is measured with Brookfield rotational vicomter, the sub-microscope stracture of those modified asphalts is studied with fluorescence optical microscopy. The performance and structure of SBS modified asphalt is studied through the measured data and microphoto. It is found that the modified asphalts have different sub microscope structures, and there are two typical sub microscope structure among them. The results indicate that the performance of modified asphalt is affected by the sub-microscope structure to a great extent , which is shown by the considerable different in ductility, viscosity, storage stability and so on. 5 tabs, 3 figs, 7 refs.