Performance of a pavement optical coating prepared with tungsten bronze nanoparticle. (18th July 2022)

• Record Type: Journal Article
• Authors: Si, Wei; Yin, Yike; Cao, Dan; Hu, Yongping; Kang, Xingxiang; Liu, Jiayao; Wang, Xiaoqing; Xu, Yinsheng; Yang, Ruocong; Gu, Qiutai
• Is Part Of: Construction & building materials. Volume 340(2022)
• Publication Date: 2022-07-18
• Subjects: Optical shielding -- Asphalt pavement -- Coating -- Tungsten bronze -- Photothermal performance; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2022.127700
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: The optical shielding pavement coatings were prepared with Cs0.3 WO3 . The change law of optical shielding performance of the coating was studied. Optical shielding is an effective measure to reduce the temperature of asphalt pavement. Abstract: Asphalt pavement absorbs more than 90% of solar radiation, which induces a series of issues. To solve these problems, a novel optical shielding pavement coating with nano-tungsten bronze (Mx WO3 ) was developed, of which the M were Na +, K + and Cs + respectively. It was found that the coatings have excellent shielding effect on all spectrum, especially with 6 wt% dosage of Csx WO3, which can prevent 98% of the light waves from penetrating the coating. The cooling test results showed that the coating reduced the internal temperature of asphalt slabs by 2.6 ℃ without a significant deterioration of their skidding performance.