Investigation of the influence of crack width on healing properties of asphalt binders at multi-scale levels
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- 作者：Shihui Shena ; sshen2@tongji.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Xin Lub ; luxin@wsdot.wa.gov" class="auth_mail" title="E-mail the corresponding author ; Liping Liua ; llp@tongji.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Cheng Zhanga ; 2014_zhangcheng@tongji.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Asphalt binders ; Healing ; Microscopic image ; Molecular dynamics simulation
- 刊名：Construction and Building Materials
- 出版年：2016
- 出版时间：15 November 2016
- 年：2016
- 卷：126
- 期：Complete
- 页码：197-205
- 全文大小：2312 K
文摘
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The healing evolution of asphalt binder is directly monitored under FESEM image analysis.
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The healing rate of asphalt binder is found to be nonlinear based on direct image analysis.
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Temperature and aging have important effect on the healing of asphalt binder under FESEM monitoring.
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Healing is triggered by the diffusion mechanism of asphalt molecules based on MD simulation.
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Crack width directly influences asphalt healing; asphalt heals faster with smaller width.