Viscoelastic–plastic damage model for porous asphalt mixtures: Application to uniaxial compression and freeze–thaw damage

摘要: Abstract Porous asphalt mixture increasingly used in highway pavement applications is an open graded composite material which has fewer fines and more air voids compared with conventional dense mixtures. The freeze thaw resistance of the crucial for performance porous especially when clogging unavoidable. A simple viscoelastic–plastic damage model developed to evaluate effects freeze–thaw Generalized Maxwell Drucker–Prager are determine viscoelastic plastic responses respectively. its evolution characterized by Weibull distribution function. Experimental data from uniaxial compressive strength tests, conducted at different strain rates temperatures, calibrate model. sensitivity parameters loading conditions identified. Simulation results suggest that loss cohesion dominant mechanism failure mixtures under cycles. Freeze–thaw also lead changes potential surface induce large volumetric strains loading.