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Abstract

To better guide engineering practice, based on the surface energy theory and cohesion stripping model, this paper tested the surface energy parameters of asphalt and the aggregate. Meanwhile, combined with the water sensitivity evaluation index TSR of the asphalt binder, the correlation between the stripping work of the asphalt binder before and after aging and TSR was further analyzed. The results show that there is a sound correlation between the stripping work of the aged asphalt binder and the indicators reflecting the water stability of the asphalt binder. The smaller stripping work leads to better water damage resistance of the asphalt binder. The addition of anti-stripping agent TiKi can enhance the cohesion of asphalt itself and the cohesion of the asphalt aggregate system, and reduce the stripping work of the asphalt aggregate system, thus improving the water stability of the asphalt binder. The experiment also finds that surface energy parameters can be employed to optimize the aggregate in the design of the binder.

Publication Date

8-18-2022

DOI

10.14048/j.issn.1671-2579.2022.04.029

First Page

159

Last Page

164

Submission Date

May 2025

Reference

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