ABSTRACT
Cathodic protection (CP) in both its forms of impressed and galvanic is becoming used in more countries and in greater quantities. The future of CP is bright if the systems presently being installed do provide long-term performance; that is, they keep passing current evenly through the reinforced concrete for a long time to the protection criteria of an applicable standard. The uptake of impressed current cathodic prevention (ICCP) as a life enhancement technique has been limited outside the Middle East where structures such as the Jeddah Tower, Saudi Arabia, which will be the world's tallest building when completed, is having its foundations protected by CP. There are also improved galvanic anode systems in development, which have the potential to meet the traditional criteria for CP. ICCP is an expensive technique and also has a monitoring requirement, as galvanic systems and hybrid systems should also have.
