ABSTRACT
Bitumen Emulsion-based Cold In-place Recycling (BE-CIR) pavement has been widely applied due to its energy-saving and environmental friendliness. A large amount of water needs to be evaporated after compaction. In this study, a numerical model of pavement structure under a natural curing environment was established to predict the temperature and humidity fields with depth inside the BE-CIR pavement. The prediction result reveals the heat and moisture migration patterns and indicates that water evaporation can be divided into three stages. The numerical model developed in this study can be used to guide the timing of overlay for BE-CIR pavement and to evaluate the development of mechanical properties of the BE-CIR mixture.
