Research on simulation model of asphalt pavememt paving temperature field

In order to determine the cooling law of asphalt mixture paving in a certain circumstances, the authors had studied the temperature field simulation model of paving process. The one-dimensional simulation model had beed set up under some particular conditions: layer thickness, thermophysical parameters and sprinkler cooling which were discontinuously changing with rolling times; convective and radiation heat transfer which were continuously changing with the surface temperature; and the uneven initial underlying temperature fields. By transforming geometric model and cycle calling the initial temperature fields, discontinuous conditions had been used in the continuous field analysis. Validation tests have shown that the model could achieve simulation of paving cooling in different environments.