介绍了国内外不同的沥青混凝土路面旧沥青回收方法,通过设计不同试验比对、表征了在旧沥青回收过程中矿粉、三氯乙烯等影响因素的作用,并分析得出了相应的、简便易行的解决方法,以更准确地测试旧沥青混合料中沥青的性状,为分析、推断旧沥青混凝土路面路用性能的演变规律以及旧沥青混凝土路面的再生利用等提供数据基础。 This paper introduces the different methods of recycling old asphalt in asphalt concrete pavement at home and abroad. By comparing different experiments, the influence factors of slag, trichlorethylene and so on in the recycling process of old asphalt are characterized, and the corresponding and simple Easy solution to more accurately test the properties of asphalt in old asphalt mixture to provide a data basis for analysis and inference of the evolvement of road performance of old asphalt concrete pavement and the recycling of old asphalt concrete pavement.