A unified strength model for chemically toughened high-performance asphalt mixtures in ultra-thin overlay applications

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成果类型：

期刊论文

作者：

Huang, Bin;Liu, Bowen;Xiao, Ge;Jin, Xin;Liu, Duyang;...

通讯作者：

Jin, X

作者机构：

[Liu, Jinguo; Xia, Chengdong; Liu, Duyang; Ling, Yumeng; Huang, Bin; Liu, Bowen; Jin, Xin; Liu, Chenxi; Wang, Dikuan] Changsha Univ Sci & Technol, Natl Engn Lab Highway Maintenance Technol, Changsha, Peoples R China.

[Huang, Bin] Hunan Prov Expressway Grp Co Ltd, Changsha, Peoples R China.

[Xiao, Ge] Modern Investment Co Ltd, Changsha, Peoples R China.

[Xia, Chengdong] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China.

[Xia, Chengdong] Xiangjiang Lab, Changsha, Peoples R China.

通讯机构：

[Jin, X ] C

Changsha Univ Sci & Technol, Natl Engn Lab Highway Maintenance Technol, Changsha, Peoples R China.

语种：

英文

关键词：

Ultra-thin overlay;Chemically toughened asphalt;Loading rate;Strength response;Rate sensitivity;Unified strength model

期刊：

Frontiers in Materials

ISSN：

2296-8016

年：

2025

卷：

页码：

1656467

DOI：

10.3389/fmats.2025.1656467

基金类别：

National Outstanding Youth Science Fund Project of National Natural Science Foundation of China [52225806]; Open Fund of National Engineering Research Center of Highway Maintenance Technology (Changsha University of Science and Technology) [kfj230203, kfj230205]; Shandong Province Transportation Science and Technology Program [2023B83]; Major R&D project of Zhejiang Provincial Department of Transportation [ZJXL-SJT-202316A]

机构署名：

本校为第一且通讯机构

院系归属：

交通运输工程学院

摘要：

To enhance the mechanical performance of ultra-thin asphalt overlays subjected to heavy traffic and harsh environmental conditions, this study developed a high-performance asphalt mixture (SMA-8) incorporating a chemically toughened modified binder, specifically designed for ultra-thin overlay applications. The strength response of this mixture under varying loading rates was systematically evaluated through direct tensile, indirect tensile, and unconfined compressive tests, with emphasis on rate-dependent behavior and strength evolution across different stress states. Experimental results rev...

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A unified strength model for chemically toughened high-performance asphalt mixtures in ultra-thin overlay applications

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