Solar-reflective coating as a cooling overlay for asphalt pavement

Decheng Feng; Jing Zhong; Ning Xie

doi:10.1117/12.923301

12 April 2012 Solar-reflective coating as a cooling overlay for asphalt pavement

Decheng Feng, Jing Zhong, Ning Xie

Proceedings Volume 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering; 84091S (2012) https://doi.org/10.1117/12.923301
Event: Third International Conference on Smart Materials and Nanotechnology in Engineering, 2011, Shenzhen, China

Abstract

Rutting is one of the most serious problems on asphalt pavements. Decrease the surface temperature of the asphalt pavement is an effective method to solve the rutting problem on asphalt pavements. In this study, nano sized particles filled polymer composite was developed as an overlay to reflect the solar energy and decrease the surface temperature of asphalt pavements. The overlay was composed of acrylic or epoxy resin filled with nano TiO₂ or nano TiNO₂. The solar reflection of the nano particle filled polymers was tested and the results showed that solar reflection effectiveness of the epoxy/TiO₂ composite reached the highest value. The results of outdoor temperature test indicate that the solar-reflective overlay could decrease the surface temperature of asphalt pavements about 10 °C when the pavement temperature is about 60 °C. Pavement skid resistance was also tested, which expressed by micro/macrotexture depth and the results of which showed that both matrix was qualified after coated with aggregates on the surface.

Citation Download Citation

Decheng Feng, Jing Zhong, and Ning Xie "Solar-reflective coating as a cooling overlay for asphalt pavement", Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84091S (12 April 2012); https://doi.org/10.1117/12.923301

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