Modeling of Asphalt Pavement Temperature under Various Seasons: Impact of Thermochromic Materials

Innovative thermochromic asphalt concrete incorporated with thermochromic materials have been designed to modulate the surface temperature of asphalt pavement (i.e., reduce pavement surface temperature during summer and increase the surface temperature during winter). Both aspects potentially improve the durability of pavement. A three-dimensional finite element model was proposed to simulate temperature characteristics of asphalt pavement using measured weather data in Cleveland, OH. The temperature simulation indicated that the surface temperature of asphalt concrete could be reduced up to 5.3 °C in May and increased up to 1.1 °C in February, respectively compared to conventional asphalt concrete. The corresponding temperature gradient across the pavement could be reduced up to 17 K/m and 14 K/m respectively. These effects on the asphalt concrete are beneficial to reduce high temperature related performance degradation of the pavement, to potentially enhance durability and safety of asphalt pavement, and to alleviate urban heat island effects.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 524-535
  • Monograph Title: Airfield and Highway Pavements 2015: Innovative and Cost-Effective Pavements for a Sustainable Future

Subject/Index Terms

Filing Info

  • Accession Number: 01568819
  • Record Type: Publication
  • ISBN: 9780784479216
  • Files: TRIS, ASCE
  • Created Date: Jun 5 2015 3:02PM