Non-linear micro-mechanical behavior of heterogeneous cement-stabilized macadam

This study aims to examine the internal meso-mechanical behaviour of cement-stabilised macadams subjected loading damage following water immersion. By constructing a numerical analysis model, mechanism water-immersion weakening macadam material and micro-mechanical specimen were analysed. The simulation results compared with laboratory test data. peak stress error was 2.414%, whereas maximum in strain corresponding specimens different immersion durations 3.05%. comparing direction distributions normal tangential contact forces each stage, it found that at approximately 0º, 90º, 180º, 270º much smaller than those other angles. In angles between 45–135º 225–285º higher For model M (mean factor) less 20, significantly affected increased as function M. When greater fluctuated within small range provides new research method for structural mechanical effect pavement structures based on materials damaged