Thermal Performance of Developed Coating Material as Cool Pavement Material for Tropical Regions
Publication: Journal of Materials in Civil Engineering
Volume 26, Issue 4
Abstract
The amount of solar energy emitted back from conventional asphalt pavement contributes to the phenomenon of urban heat island (UHI), and the current work was focused on studying the thermal behavior of asphalt pavement developed as a coating material from wasted tile. The surface temperature of asphalt surface with and without coating material for ambient temperature and underground soil temperature was studied. Results showed that the application of developed coating materials could reduce the surface temperature of asphalt pavement up to 4.4°C. Rainfall also played a significant role as a natural coolant during the experimental run by maintaining the surface temperature continuously for 2 days after the rainfall event, with an average surface temperature of 41.9°C. The underground soil temperature of the coated surface showed reduction in the range of 0.8–1.2°C throughout the day. The coating materials achieved their efficiency in reducing the emitted radiation only during noontime and the results show that the developed coating materials have true potential to serve as cool pavement to combat UHI effects.
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Acknowledgments
Special thanks to the local and international collaborators, Malaysian Mosaic Berhad (Malaysia) that supplied the wasted tiles materials, and Tajimi General Constructors Association (Japan) that aided in the construction of prototype and provided financial support. The authors would also like to thank the Malaysian Ministry of Higher Education for financially supporting the study by providing a research grant under the Exploratory Research Grant Scheme.
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Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 26 • Issue 4 • April 2014
Pages: 755 - 760
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Feb 9, 2013
Accepted: May 21, 2013
Published online: May 23, 2013
Discussion open until: Oct 23, 2013
Published in print: Apr 1, 2014
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