Durability Evaluation of Concrete Structure Based on Reinforcement Corrosion

Concrete structures in corrosive environment often suffer from reinforcement corrosion, which leads to durability degradation and shortens the service life of these structures. The safe and durable operation and maintenance of concrete structures are based on durability diagnosis, accurate prediction of the residue life, and scientific evaluation of the service capabilities. On the basis of the performance degradation process during the whole lifetime of the structure, the complexity of the service environment of the structure and the effects of reinforcement corrosion on structure performance were fully considered, and the durability limit states of concrete structures based on reinforcement corrosion were presented. The durability grades of concrete structures were defined according to the probability analysis of the reinforcement corrosion of field structures, and the scientific evaluation of the durability of concrete structures by referring to the reinforcement corrosion process was achieved. The study provides a reference for the durability evaluation of concrete structures with reinforcement corrosion as the main degradation form in normal atmospheric environment and chloride environment, and it is of guiding significance for later operation and maintenance of such structures.