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A platform for research: civil engineering, architecture and urbanism
Nano-Scaled Mechanical Properties of Asphalt Binders Caused by Aging
Aging of asphalt binders causes the changes in the microstructure of the asphalt binders, consequently, in the mechanical properties. In this study, aging of short-term and long-term was tested on both base and modified asphalt binders using rotating thin film oven (RTFO) and pressure ageing vessel (PAV), respectively. The changes in the nano-mechanical properties were measured using atomic force microscope (AFM) technology. The results indicated: (1) the nano-adhesive forces from AFM were increased for both base and modified asphalt binders after RTFO aging; and (2) the nano-adhesive force was reduced for both base and modified binder, but the former was reduced higher than the later after PAV aging.
Nano-Scaled Mechanical Properties of Asphalt Binders Caused by Aging
Aging of asphalt binders causes the changes in the microstructure of the asphalt binders, consequently, in the mechanical properties. In this study, aging of short-term and long-term was tested on both base and modified asphalt binders using rotating thin film oven (RTFO) and pressure ageing vessel (PAV), respectively. The changes in the nano-mechanical properties were measured using atomic force microscope (AFM) technology. The results indicated: (1) the nano-adhesive forces from AFM were increased for both base and modified asphalt binders after RTFO aging; and (2) the nano-adhesive force was reduced for both base and modified binder, but the former was reduced higher than the later after PAV aging.
Nano-Scaled Mechanical Properties of Asphalt Binders Caused by Aging
Liu, Ben (author) / Chen, Jianxin (author) / Shen, Junan (author) / Song, Xuyan (author)
2015 International Symposium on Frontiers of Road and Airport Engineering ; 2015 ; Shanghai, China
2015-10-22
Conference paper
Electronic Resource
English
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