Research on a New Method of Evaluating Compaction of Pavement

In this paper the surface temperature of test specimens which were water-saturated were measured after different exposure time in the lamplight. The relationship can be set up among surface temperature,air viods and water permeability coefficient. This research demonstrated that there is good correlation. So when the pavement is in the sunshine for a time after a rain,asphalt pavement areas with different water permeability coefficient can be distinguished by using infra-red technology to measure the surface temperature.Compaction of asphalt pavement can also be evaluated. This way was used and checked up in shanghai-chengdu highway project. This is a new method what is very convinently and quickly to evaluate the compaction and homogeneity of asphalt pavement.