Probabilistic Design for Concrete Durability in Marine Environment

摘要

A probabilistic method to durability is proposed for the design of reinforced cover of a concrete immersed in marine environment. It uses a non-linear chloride diffusion model for a saturated medium. Parameter variability is estimated and used by the probabilistic method to assess the probability of reaching a critical chloride concentration near the reinforcement for a given service life. Based on the concrete formulation and the cement chemical composition, the model parameters are evaluated with their associated random distribution.