Prediction of the temperature distribution in asphalt pavement samples

[摘要] ENGLISH ABSTRACT:The convection heat transfer coefficient between an infinite, horizontal surface and the naturalenvironment is determined experimentally. It is shown that, during daytime, heat istransferred due to natural and forced convection, while during nighttime heat is transferreddue to conduction and forced convection. Equations that correlate the daytime and nighttimeconvective heat transfer coefficients respectively, are presented. The results are comparedwith values obtained by other investigators.The equations for the convection heat transfer coefficient are then used to predict the surfacetemperature and the temperature at depth of asphalt pavement samples using a simulationmodel. It is found that there is good agreement between the measured and the predictedasphalt pavement sample temperatures.

[发布机构] Stellenbosch University