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冷拌环氧沥青的材料优化与固化特性：用于机场跑道的沥青罩面

Material Optimization and Curing Characterization of Cold-Mix Epoxy Asphalt: Towards Asphalt Overlays for Airport Runways.

作者信息

Zhan Chong, Yang Ruochong, Chen Bingshen, Fan Yulou, Liu Yixuan, Hu Tao, Yang Jun

机构信息

School of Transportation, Southeast University, #2 Southeast University Road, Nanjing 211189, China.

Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong.

出版信息

Polymers (Basel). 2025 Jul 26;17(15):2038. doi: 10.3390/polym17152038.

DOI:10.3390/polym17152038
PMID:40808087
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12349570/
Abstract

Currently, numerous conventional airport runways suffer from cracking distresses and cannot meet their structural and functional requirements. To address the urgent demand for rapid and durable maintenance of airport runways, this study investigates the material optimization and curing behavior of cold-mix epoxy asphalt (CEA) for non-disruptive overlays. Eight commercial CEAs were examined through tensile and overlay tests to evaluate their strength, toughness, and reflective cracking resistance. Two high-performing formulations (CEA 1 and CEA 8) were selected for further curing characterization using differential scanning calorimetry (DSC) tests, and the non-isothermal curing kinetics were analyzed with different contents of Component C. The results reveal that CEA 1 and CEA 8 were selected as promising formulations with superior toughness and reflective cracking resistance across a wide temperature range. DSC-based curing kinetic analysis shows that the curing reactions follow an autocatalytic mechanism, and activation energy decreases with conversion, confirming a self-accelerating process of CEA. The addition of Component C effectively modified the curing behavior, and CEA 8 with 30% Component C reduced curing time by 60%, enabling traffic reopening within half a day. The curing times were accurately predicted for each type of CEA using curing kinetic models based on autocatalytic and iso-conversional approaches. These findings will provide theoretical and practical guidance for high-performance airport runway overlays, supporting rapid repair, extended service life, and environmental sustainability.

摘要

目前，许多传统机场跑道出现裂缝病害，无法满足其结构和功能要求。为满足机场跑道快速、持久维护的迫切需求，本研究调查了用于非破坏性罩面的冷拌环氧沥青（CEA）的材料优化和固化行为。通过拉伸和罩面试验对八种商用CEA进行了检测，以评估其强度、韧性和抗反射裂缝性能。选择了两种高性能配方（CEA 1和CEA 8），使用差示扫描量热法（DSC）试验进行进一步的固化特性研究，并分析了不同C组分含量下的非等温固化动力学。结果表明，CEA 1和CEA 8被选为有前景的配方，在很宽的温度范围内具有优异的韧性和抗反射裂缝性能。基于DSC的固化动力学分析表明，固化反应遵循自催化机制，活化能随转化率降低，证实了CEA的自加速过程。C组分的添加有效地改变了固化行为，含30%C组分的CEA 8将固化时间缩短了60%，能够在半天内重新开放交通。使用基于自催化和等转化率方法的固化动力学模型准确预测了每种CEA的固化时间。这些发现将为高性能机场跑道罩面提供理论和实践指导，支持快速修复、延长使用寿命和环境可持续性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/96ee/12349570/cdd1a45bc370/polymers-17-02038-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/96ee/12349570/9f7856e0bc3c/polymers-17-02038-g007a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/96ee/12349570/d109af698fa4/polymers-17-02038-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/96ee/12349570/5995be9e24af/polymers-17-02038-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/96ee/12349570/cdd1a45bc370/polymers-17-02038-g013.jpg

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