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Open AccessArticle

Development of Super Road Heat-Reflective Coating and Its Field Application

1
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang’an University, South Erhuan Middle Section, Xi’an 710064, China
2
School of Civil Engineering and Architecture, Hubei University of Arts and Science, No.296, Longzhong Road, Xiangyang 441053, China
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(12), 802; https://doi.org/10.3390/coatings9120802
Received: 11 November 2019 / Revised: 26 November 2019 / Accepted: 26 November 2019 / Published: 29 November 2019
(This article belongs to the Section Thin Films)
Heat-reflective coatings, used to reduce the asphalt pavement temperature and urban heat island effect, have a good cooling effect; coating development, however, generally focuses on cooling. This study aims to design a heat-reflective coating with both durability and cooling effect by considering the functions of each component, improving the coating bond strength and abrasion resistance, and conducting laboratory tests and test section verification. The coating developed exhibits bond strength and abrasion resistance 20% and 49%, respectively, higher than those of ordinary coatings. The experiments reveal a cooling effect of red coating up to 10.2 °C, a bond strength of up to 1.20 MPa at 25 °C, and an abrasion rate of up to 25% after 60 min; the cooling effect is basically the same as that for traditional heat-reflective coatings, but the bond strength and abrasion resistance significantly improved. In the analysis of the test section, the cooling effect reaches 7.0 °C, the performance of anti-skid decreases little, and the coating is still usable normally after 4 months. View Full-Text
Keywords: road; heat-reflective coating; coating development; bond strength; abrasion resistance; cooling effect road; heat-reflective coating; coating development; bond strength; abrasion resistance; cooling effect
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MDPI and ACS Style

Yi, Y.; Jiang, Y.; Li, Q.; Deng, C.; Ji, X.; Xue, J. Development of Super Road Heat-Reflective Coating and Its Field Application. Coatings 2019, 9, 802.

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