Photocatalytic pavements with epoxy-bonded TiO2-containing spreading material

D. Wang, Zhen Leng, M. Hüben, M. Oeser, B. Steinauer

Research output: Journal article publicationJournal articleAcademic researchpeer-review

43 Citations (Scopus)

Abstract

Titanium dioxide (TiO2) is a photocatalyst which can accelerate the oxidation of nitrogen oxides (NOx) and other pollutants under ultraviolet (UV) radiation. In this study, a new method to coat TiO2onto asphalt pavements was developed with the aim to enhance the NOxdecomposition efficiency and durability of the coating material for asphalt pavements. In this method, pulverized TiO2-cement mortar is used as the spreading material, which is bonded to asphalt pavement surface by epoxy resin. The composition of the TiO2-cement mortar was optimized in terms of its mechanical properties. The long-term NOxdegradation efficiency, abrasion resistance, and skid resistance of the spreading material were measured after it was subjected to 300 min polishing by the advanced Aachen Polishing Machine (APM). It was concluded that durable NOxdegradation efficiency can be achieved by the developed method and the method is feasible for practical implementation.
Original languageEnglish
Pages (from-to)44-51
Number of pages8
JournalConstruction and Building Materials
Volume107
DOIs
Publication statusPublished - 15 Mar 2016

Keywords

  • Asphalt pavements
  • Epoxy-bonded spreading material
  • NO removal efficiency
  • Photocatalytic pavements
  • Polishing resistance

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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