Cooling High-Speed Railway Slab Tracks with Solar Reflective Coatings: A Feasibility Study
Publication: Journal of Materials in Civil Engineering
Volume 34, Issue 5
Abstract
The slab track temperature is significant with respect to the safety of the vehicle. The objective of this study was to investigate the cooling effects of solar reflective coatings (SRCs) on slab tracks. Two types of coatings were applied in the outdoor environment, and a model considering reflective coatings was subsequently established. The coatings decreased the maximum temperature and maximum temperature gradient by and , respectively. The albedo of an SRC on a slab track was suggested to be greater than 0.6. The coatings exhibited superior cooling effects in case the wind scale was lower than Level 2.
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Data Availability Statement
Material recipes in the study are proprietary or confidential in nature and may only be provided with restrictions.
Acknowledgments
This work was supported by National Natural Science Foundation of China (Grant Nos. U1434208 and 51778543). The authors thank Professor Wang Ping and Professor Zeng Xiaohui for their guidance on the SRC materials. This experimental study was also supported by China Shanghai Railway Bureau. The authors would like to express their gratitude to EditSprings (https://www.editsprings.com/) for the expert linguistic services provided.
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Published In
Journal of Materials in Civil Engineering
Volume 34 • Issue 5 • May 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Apr 7, 2021
Accepted: Sep 20, 2021
Published online: Feb 24, 2022
Published in print: May 1, 2022
Discussion open until: Jul 24, 2022
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