Deformation superposition effect of asphalt mixture based on experiments and micromechanical modeling

Abstract

Highlights (1) Evaluation of deformation superposition behavior of asphalt mixture by the multi-point penetration test. (2) Determinant of the deformation superposition resistance of the asphalt mixture under the multi-wheel load is wheel spacing and the number of wheels. (3) The reduction of tensile chains is the internal reason for asphalt mixture deformation superposition. (4) The numerical simulation method can reflect the laboratory penetration test outcome.

Keywords

• Asphalt mixtures
• Deformation superposition effect
• Multi-point penetration test
• Discrete element method (DEM)
• Micromechanical characteristics