ABSTRACT
Cathodic protection (CP) has been successfully used on ships, where the high conductivity of sea water made it easy to pass the current. British Standards (BS) lays out in more detail what is required for the design, components of a CP system and monitoring criteria. One of the many things it says is that 'galvanic anode systems may be used without monitoring systems or methods to measure their performance. In the BS 7361 standard, no mention of using galvanic anodes directly in reinforced concrete was made, presumably because they were thought to be unsuitable for this application. In one of the large-scale experiments, they made multiple specimens, allowed the steel reinforcement to corrode, and then tried to stop further CP. Due to anode problems, the amount of current applied varied as did the depolarisation levels.
