Modelling of ageing and corrosion processes in reinforced concrete structures

A simplified overview of the mechanisms involved in the time-dependent progress of concrete deterioration and reinforcement corrosion is given in this chapter. The chemical and physical deterioration mechanisms are divided into consequences concerning the degradation of the reinforcement and those affecting the concrete. The various design models for modelling ageing phenomena with their required measurable input parameters and the corresponding nondestructive testing methods are described. The results of non-destructive testing, benchmarking and updating allow a judgement and planning of inspections and remediation activities for the remaining service life of structures.