摘要
通过动态力学分析试验(DMA),发现了沥青及改性沥青的低温开裂与其流变参数[E]、E′、E″之间的定量关系以及Tg随温度的变化规律性,推导出改性沥青在动荷载下的流变方程,为沥青的改性提供了理论依据。
The quantitative relationships between the brittleness of bitumen and modified bitumen at low temperature and their technological parameters 、E′、E″ are found in this paper through DMA. The laws of Tg change with the temperatures are studied. The rheological equations of modified bitumen under dynamic loads are set up. All these provides theoretical basis for the modification of bitumen.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
1998年第4期23-27,共5页
China Journal of Highway and Transport
关键词
改性沥青
开裂
流变参数
DMA
公路
Modified bitumen, Brittleness, Rheological parameter