Impact of pavement thickness on surface diurnal temperatures

Jooseng G. Gui, Joby Carlson, Patrick Phelan, Kamil Kaloush, Jay S. Golden

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Simulations of pavement surface temperature were carried out using a one-dimensional mathematical model developed previously based on a fundamental energy balance. By altering the parameters input to the model, an analysis was conducted to study the effects on the diurnal pavement temperatures caused by varying paving material and thicknesses. Such study offers an understanding of the optimum thicknesses for the materials to yield cooler surface temperatures by reducing heat absorption. This model can assist in determining appropriate mitigation strategies for the Urban Heat Island effect and human discomfort. The results indicated that there exists a critical layer thickness at which the maximum surface temperature is minimized. Further increase beyond the critical thickness results in adverse maximum and minimum surface temperatures. The study also shows that high albedo concrete cement surfaces have cooler surface temperatures as compared to lower-albedo asphalt-based surface pavements.

Original languageEnglish (US)
Pages (from-to)121-130
Number of pages10
JournalJournal of Green Building
Volume2
Issue number2
DOIs
StatePublished - Jan 1 2007

Keywords

  • Optimization
  • Thermal model
  • Urban heat island

ASJC Scopus subject areas

  • Environmental Engineering
  • Geography, Planning and Development
  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Environmental Science(all)
  • Public Health, Environmental and Occupational Health
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

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