Performance optimization of novel wear-resistant reflective cooling coatings for asphalt pavement

Wei Si, Qiutai Gu, Yike Yin*, Xiangyu Luo, Moxuan Xia, Xin Li, Maoning Zhong, Yongping Hu

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

To enhance the wear resistance of traditional asphalt pavement reflective coatings and extend their cooling effect, this study employed Potassium Hexatitanate Whiskers (PHW) as a functional material to manufacture pavement reflective coatings. It was found that PHW exhibited excellent wear resistance though agglomeration resulted in adverse effects. Therefore, untreated PHW (U-PHW) underwent inorganic-organic surface modification to produce modified PHW (M-PHW). The results indicated that M-PHW exhibited excellent optical properties, with a reflectance of 78.9 %. M-PHW exhibited more uniform dispersion in the resin matrix, which significantly enhanced the coating reflectivity. Moreover, the interfacial bonding strength between M-PHW and the resin matrix was significantly improved, enhancing the wear resistance of the coating. Especially with a whisker content of 16 units, the tensile strength of the M-PHW coating reached 96.20 MPa, representing a 43.0 % increase compared to the U-PHW coating, while achieving a maximum outdoor cooling value of 5.6 °C.
Original languageEnglish
Article number139207
JournalConstruction and Building Materials
Volume455
Number of pages15
ISSN0950-0618
DOIs
Publication statusPublished - 2024

Keywords

  • Asphalt pavement
  • Cooling coating
  • Reflective coating
  • Wear resistance
  • Potassium hexatitanate whiskers

Fingerprint

Dive into the research topics of 'Performance optimization of novel wear-resistant reflective cooling coatings for asphalt pavement'. Together they form a unique fingerprint.

Cite this