Material Properties

The additional material properties needed for the heat transfer model are provided in Table 1. The values for the soil were taken directly from the Final Report for the FHWA HIPERPAV project [2]. For concrete, a variety of values for the properties are available in the literature [2,3,4,12] and the values provided in Table 1 are considered to be reasonable "mean" estimates. Of course, it is well recognized that each of these material properties will vary with the specific concrete under consideration. If specific values were measured for a concrete of interest, the heat transfer model could be easily executed for these values, since they are typically provided in an input file to the main program.

 

Table 1: Material Properties for Heat Transfer Model

	Heat Capacity	Thermal Conductivity	Density
Material	Cp ( $\frac{J}{kg~^\circ C}$)	k ( $\frac{W}{m~^\circ C}$)	$\rho$ ( $\frac{kg}{m^3}$)
Concrete	1000	1.5	2350
Soil	800	0.3	1600

Environmental Conditions