摘要
在实验室中不同温度下,采用压力老化容器(PAV),对四种沥青进行了不同时间的老化,对这些老化沥青的流变性能进行对比研究。结果表明:不同来源的相同PG分级的沥青在长期老化后,其流变性能存在显著差异;沥青具有不同的老化流变模式,与老化温度有关。
In laboratory,the pressure aging vessel(PAV)was used to aging the four asphalts at different temperatures for different times,and the rheological properties of these aging asphalts were compared and studied.The results show that the asphalt of the same PG grade from different sources has significant rheological properties after long-term aging.Asphalt has different aging rheological patterns,which are related to the aging temperature.
作者
胡国鹏
HU Guo-peng(Shanxi Provincial Traffic Construction Engineering Quality Inspection Center(Co.,Ltd.),Taiyuan 030032,China)
出处
《北方交通》
2020年第9期47-49,54,共4页
Northern Communications
基金
山西省交通控股集团科研计划项目(18-JKKJ-08)。
关键词
沥青
长期老化
复数模量
相位角
Asphalt
Long-term Aging
Complex Modulus
Phase Angle
