沥青老化评价指标分析及老化程度研究  

Analysis on Asphalt Aging Evaluation Index and Study On Aging Degree

作　　者：汪莹[1] 

机构地区：[1]南京交通职业技术学院,南京市211188

出　　处：《北方交通》2014年第7期60-65,共6页Northern Communications

基　　金：江苏省节能减排中心项目(JN201203)

摘　　要：通过研究沥青老化的过程及规律,在对现行规范中评价沥青老化的各项指标进行试验分析的基础上,回归了沥青的老化指标与老化时间之间的关系,采用综合指标来确定沥青老化的速率及界定老化的等级,为后期进行旧沥青再生及旧沥青混合料性能的改善提供一定的参考依据。By studying process and pattern of asphalt aging, based on test and analysis on indicators of evaluation of asphalt aging in the current specification, reverse derived the relationship between asphalt aging indexes and aging time. Composite indicator is used to determine the rate and the level of asphalt aging and to provide reference for old asphalt regeneration and old asphalt mixture performance improvement.

关 键 词：老化 评价指标 老化速率 老化等级 

分 类 号：U414.01[交通运输工程—道路与铁道工程]