AN INSIGHT INTO CATHODIC PROTECTION SYSTEMS FOR REINFORCED CONCRETE STRUCTURE

摘要

Corrosion-induced concrete damages to concrete structures results in not only affecting the structural safety but also heavily financial burdening to the structure owners. An electrochemical method, cathodic protection (CP), for controlling corrosion of reinforcing steel in concrete involves techniques that interfere with the electrochemical reactions occurring on the embedded steel surface. When CP is selected as a rehabilitation method, there are many factors that can influence the effectiveness, durability and the cost of the CP system. To install durable and long term effective CP systems, the causes of the failures happened in the past are important information.