ABSTRACT
This paper presents an analysis of the asphalt concrete pavement material properties that affect surface temperatures as related to urban heat island (UHI) effects. It presents a parametric study of the effects of albedo, thermal conductivity and heat capacity on pavement surface temperatures. Pavement surface temperatures were analyzed for two extreme weather locations in the USA, namely South Texas and Northern Minnesota. LTPP weather data over a year-long period, were analyzed for each location using the computer model TEMPS. It was concluded that the higher the coefficient of thermal conductivity, the heat capacity and the albedo of the pavement surface layer, the lower the average and maximum surface temperatures are during the summer months. Graphite as a replacement to limestone aggregates was shown as a material that could reduce asphalt concrete UHI effects.
