Research on a New Loading Method for Nano TiO 2 Photocatalytic Asphalt Pavement

Jingxiao Shu, Xiaoyang Wang (), Bo Yang and Xiaofeng Wang
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Jingxiao Shu: School of Hydraulic and Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
Xiaoyang Wang: Henan Communications Planning & Design Institute Co., Ltd., Zhengzhou 451460, China
Bo Yang: Henan Communications Planning & Design Institute Co., Ltd., Zhengzhou 451460, China
Xiaofeng Wang: Henan Communications Planning & Design Institute Co., Ltd., Zhengzhou 451460, China

Sustainability, 2022, vol. 14, issue 19, 1-11

Abstract: The main goal of our work was to study a new loading method for photocatalytic asphalt pavement that could effectively solve the problems of photocatalytic degradation efficiency and durability. We adhered nano TiO 2 particles to the microscopically textured structure on the surface of glass microbeads by cold alkaline corrosion and high-temperature adhesion technology. We observed good adhesion of nano TiO 2 on glass microbeads by a microscopic performance characterization of the composites. The improvement in the light transmittance of the composite material improved the catalytic efficiency of nano TiO 2 to a certain extent. Three different groups were established to verify the durability of the nano TiO 2 loading method. The result shows that the exhaust gas degradation rate of the spray embedding group did not decrease significantly with the increase in road friction time. Our research provides a new idea for the design of exhaust degradation pavement.

Keywords: environmental protection; new loading method; microscopic characterization; photocatalytic asphalt pavement (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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