Effects of High Temperature on Creep Properties of Cement and Emulsified Asphalt Mortar
Publication: Journal of Materials in Civil Engineering
Volume 34, Issue 7
Abstract
As an inorganic–organic composite material, cement and emulsified asphalt (CA) mortar has been used widely in ballastless slab track structures, and its performance is influenced significantly by environmental conditions. In this study, we tested the long-term creep of CA mortar at different temperatures using a self-designed loading device, and explored the mechanisms by which high temperatures influence CA mortar creep based on several microscopic testing methods. The results indicated that high temperatures cause the creep degree and rate of CA mortar to increase significantly. Subsequent to creep at high temperatures, the mechanical properties and microstructure of CA mortar changed remarkably, and asphalt migration may be an important cause of changes in CA mortar at high temperatures. This will be useful for future studies of the evolution of CA mortar performance under long-term service conditions.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The authors are grateful for funding provided by the National Natural Science Foundation of China (Nos. U1534207 and 52078490).
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Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 34 • Issue 7 • July 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Jun 7, 2021
Accepted: Nov 1, 2021
Published online: Apr 22, 2022
Published in print: Jul 1, 2022
Discussion open until: Sep 22, 2022
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Cited by
- Zhi Wu Zhou, Julián Alcalá, Víctor Yepes, Experimental Research on Diseases of Emulsified Asphalt Mortar Board for Ballastless Tracks, Journal of Materials in Civil Engineering, 10.1061/JMCEE7.MTENG-15149, 35, 6, (2023).
- Gang Ma, Youjun Xie, Guangcheng Long, Zhuo Tang, Xiang Zhou, Xiaohui Zeng, Jiangteng Li, Mesoscale investigation on concrete creep behaviors based on discrete element method, Construction and Building Materials, 10.1016/j.conbuildmat.2022.127957, 342, (127957), (2022).