Study on relationship between asphalt four components and fatigue characteristics
In order to study the correlation between asphalt four components and fatigue characteristics,the four components of matrix asphalt is tested by bar chromatographic analyzer,the fatigue characteristics are analyzed through the DSR time sweep test,and the correlation between asphalt four components and fatigue characteristics are calculated through grey correlation analysis method.The results show that 90#asphalt contains more light components and less asphaltene,and more lightweight components give 90#asphalt better ductility and flexibility.The fatigue characteristics of 90#asphalt are better than that of 70#asphalt.Aromatics and saturated hydrocarbons have a significant correlation with the asphalt fatigue indexes,and they are the key indicators of the asphalt fatigue characteristics.
NETL
NSTL
万方数据
