高黏度改性沥青配方设计与性能浅析

Brief Analysis on Formulation Design and Performance of High Viscosity Modified Asphalt

设计了9种高黏度改性沥青的组成配方,给出了其试验室制备工艺;采用沥青常规性能试验、日本低温弯曲试验,分析了高黏度改性沥青的各项性能。结果表明:高黏度改性沥青的性能取决于SBS与轻质油的配比,在进行配方设计时,可根据需求进行两者配比的确定,设计配方中轻质油与SBS的最佳占比分别为9%、13%。可为同类高黏度改性沥青的研制提供参考,并为相关技术标准的制定提供依据。

Nine kinds of formulations of high viscosity modified asphalt are designed.The laboratory preparation processes are given.Various properties of high viscosity modified asphalt are analyzed by the conventional asphalt performance test and Japanese low temperature bending test.The results show that the properties of high viscosity modified asphalt depend on the ratio of SBS and light oil.The ratio of the both can be determined according to the demands during the formulation design.The optimal proportion of light oil is 9%and SBS is 13%.The reference can be provided for the development of the similar high viscosity modified asphalts and the basis for the establishment of relevant technical standards.