Extent of corrosion damage for RC structures exposed to chloride-bearing environment

In industrialized countries, most of the reinforced concrete (RC) structures and infrastructures have more than 40 years, since they were built around 1960 − 1980, designed for a service life 50 years. Consequently, in next number infrastructuresthat will need to be repaired steeply increase. Several techniques, characterized by different durability, environmental impact economic impact, are available repair structure damaged corrosion reinforcement. To help designers choice suitable one, preliminary assessment condition is essential, aimed at diagnosing causes deterioration, extent damage, i.e. corroding reinforcement, its evolution time. An approach, with wide consensus, evaluation reinforcement carbonation-induced corrosion, whilst it still lacking forchloride-induced corrosion. this paper two approaches RC subject chloride-induced presented compared, showing similar results. These can useful properly plan restoration intervention as well assess reliability recently proposed model design.