Abstract
Protecting the ballast tanks of Arctic offshore structures from salt-water corrosion is a time-consuming and costly process involving usually the application of such anti-corrosives as coal tar epoxy. This paper points out the drawbacks of relying on these coatings alone, among them the prohibitive cost and difficulty of dry-docking huge Arctic offshore structures for repainting when the original coating deteriorates or fails. A solution to the problem—cathodic protection via the attachment of aluminum anodes to tank surfaces coated with only a light primer—is described along with the results of a full-scale application on a submersible barge in the U.S. Beaufort Sea.
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