A Carbonation and Chloride Induced Corrosion Model for Hot-dip Galvanised Reinforcement Bar Material in Concrete

This paper focuses on methodological issues relevant to corrosion risk prediction models. A model was developed for the of rates associated with hot-dip galvanised reinforcement bar material in concrete exposed carbonation and chlorides outdoor environment. One-year follow-up experiments, over five years, were conducted at various depths chloride contents. The observed dependence rate depth content is complex indicating that interaction between influencing corrosion. non-linear proposed statistical analysis relationship test parameters. main contributions are (i) modeling approach able take into account uncertain measurement errors including unobserved systematic random heterogeneity different measured specimens correlation same specimen across measuring times, which best suits data; (ii) an parameter introduced especially contribution degree carbonation-chloride interaction. offers greater flexibility modelling data than traditional