An overview and sensitivity study of a multimechanistic chloride transportmodel

Service life prediction models have been developed in order to ensure adequ ate durability of reinforced concrete structures in chloride environments. Many of the models currently available are overly simplistic, assuming chlo ride ingress occurs solely by diffusion and that boundary conditions and co ncrete properties (i.e., diffusivity) remain constant with time. This paper describes a recently developed model that considers multimechanistic trans port, chemical binding, and the time-dependent nature of concrete propertie s. The results of a sensitivity analysis carried out on eight of the input parameters in the model are also reviewed. (C) 1999 Elsevier Science Ltd. A ll rights reserved.