Materials

September 25, 2008

Pavement Temperature Modeling

Objective

Create a computation model to estimate the surface and subsurface temperature within multi-layered pavement systems.

Methodology

Using fundamental heat transfer principles to create a one dimensional finite difference model. Used data collected from testing sites to calibrate the model for different weather conditions. Inputs required: meteorological information (3 day wind speed, solar radiation, air temperature and dew point) and pavement material properties (thermal conductivity, density, specific heat, thickness, albedo, emissivity).

Significance

This model allows for quick and simple results using readily available data. Architects, pavement engineers and climatologist will benefits from understanding how their design and material choices will impact surface temperatures.

Duration

Summer 2006

Resulting Publications

Gui, J., Phelan, P., Kaloush, K., and J. Golden (2007).  Impact of Pavement Thermo-Physical Properties on Surface Temperatures. ASCE Journal of Materials in Civil Engineering. Vol. 19, No. 8, pp. 683-690.

J, Jooseng, Carlson, J., Phelan, P., Kaloush, K. and J.S. Golden (2007).  Impact of Pavement Thickness on Surface Diurnal Temperatures. Journal of Green Building. Vol. 2, No.2, pp. 121-130.