ABSTRACT
Pavement life includes both the structural life and the functional life of the pavement. This study primarily investigated the functional life (i.e., the duration of the anti-icing performance) of an anti-icing asphalt mixture with low freezing point materials. Two materials that lower the freezing temperature were selected for producing the anti-icing asphalt mixture in this study. The one material is a coarser granular material, whereas the other is a finer powdery material. After designing and verifying the performance of the two anti-icing asphalt mixtures, the anti-icing effect was tested by the solution conductivity method. Based on the amount of precipitation in the Beijing region, the testing method of the anti-icing effect was based on the similarity theory for an asphalt mixture with a low freezing point material. According to the test data of the anti-icing performance for 125 days, a prediction model of functional life was established for the anti-icing asphalt mixture.
