ABSTRACT
Asphalt mixture compaction has been well recognized as one of the most critical factors affecting the pavement behavior. This implies that effective compaction strategies should be established to achieve the desired in-situ compaction degree. In practice, contractors seek to establish the rolling pattern that ensures the quality acceptance specifications are met through the installation of a trial section, without taking into consideration dominant factors affecting compact ability, such as mixture temperature and the variability of construction conditions. In this study, a practical methodology was developed to model the compaction density to enhance the asphalt compaction process by integrating a closed formula and the implementation of emerging Non-Destructive Testing (NDT) technologies. The fitted model describes the compaction density evolution with respect to mixture temperature cooling and number of passes; by controlling these two parameters it is expected to become easier to achieve the desired compaction density. The experimental results used for this investigation verified the prediction performance of this approach.
