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鉴于目前低标号沥青已越来越成为国内研究的热点以及未来可能更广泛的应用,对四种国产AH-50沥青分别采用针入度和PG分级方法进行了试验检测,以分析目前AH-50沥青的现状,比较各沥青性能之间的差异,寻找各检测值与我国规范要求值之间的差距和存在的问题,从而提出我国关于沥青指标规定的适用性及其下一步进行改善的可能,为我国低标号沥青能够满足规范和工程应用的需要提供参考。
In view of the current low-grade asphalt has become a hot spot in the domestic research and may be more widely used in the future, the four kinds of domestic AH-50 asphalt were used to test the penetration and PG grading method to analyze the current AH-50 Asphalt, the status quo, the difference between the performance of the asphalt to find the test values and the requirements of our country the gap between standards and the existing problems, and thus put forward our country on the applicability of asphalt indicators and the possibility of the next step to improve, It can provide a reference for our country’s low-grade asphalt to meet the requirements of norms and engineering applications.