ABSTRACT
After the second world war, the use of cathodic protection (CP) became widespread in both the United States and Northern Europe on pipelines, tanks and other ferrous objects, first mainly with galvanic anodes, but as time progressed, more commonly with impressed current systems. It also became apparent that after the structural repair of the reinforced concrete, the anode was the most expensive part of the impressed current CP (ICCP) installation. Steel reinforced concrete has become one of the most commonly used construction materials in the world. In most applications, its unique blend of properties has provided a durable and cost-effective solution. Australia was an early adopter of ICCP, and it has become commonplace in all the coastal conurbations of the country as a repair technique. In recent years, impressed systems have been joined by hybrid and galvanic anodes in select applications.
