Abstract
A methodology is developed to account for the elastic-adhesive interface effect on the effective elastic moduli of particulate-reinforced asphalt concrete. The nonlinear factor related with the second-order term of strain is introduced to consider the large deformation of asphalt mastic. The elastic and adhesive coefficients of interface are used to describe the imperfect interface, and the closed-form for the elastic moduli of asphalt concrete reinforced by isotropic particles is derived. Through some numerical examples, it is found that the effective elastic moduli show significant variation with the interfacial microstructure in asphalt concrete, especially with small radius of particles. The interface effect with large deformation of asphalt concrete is also examined in detail.
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