采用测力延度试验，本文分析了不同SBS改性沥青在不同温度，不同改性剂掺量下的性能变化特点。
Through lots of force ductility tests, the tensile performances of the different SBS modified asphalts in different temperatures are analyzed.
试验结果表明，测力延度试验可以比较全面的反映改性沥青的低温拉伸性能，是评价改性沥青低温性能的简单有效的方法。
Test results indicate the force ductility test is a simple and effective mean of characterization of low temperature tension properties of polymer modified asphalt.
采用沥青薄膜加热试验和紫外线老化试验，对沥青的针入度、软化点、延度和粘度等性能指标进行了试验研究。
By thin film oven test and ultraviolet photooxidation test, asphalt performance indices were studied, including penetration, softening point, ductility and viscosity.
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