Stress State of Asphalt Mortar Based on Meso-Scopic Finite Element Simulation and Verification

Abstract The composition and structure of asphalt mixture have a significant impact on its mechanical performance, the randomly distributed coarse aggregate impose stress state mortar. However, traditional method can only evaluate properties from macro scopic indexes, cannot show mortar in details. Therefore, based digital image processing technology, meso-finite element model is established, analyzed by using finite method. correlation between distance to established. Results that basically approaches external applied or zero when surface exceeds 4 mm. closer it surface, greater is. Under compressive conditions, will be affected tensile vertical direction, maximum about 0.2–0.25 times stress. results this paper good reference for explaining complex