The performances of aluminum and zinc sacrificial anodes in seawater have been thoroughly documented during the last few years.(1,2,5) This documentation has been of significant value to users of cathodic protection since both aluminum and zinc anodes are widely used to protect structures located in seawater. A complementary application for sacrificial anodes is the protection of pipelines and legs of structures buried in mud or sand under the sea. Although the anodes for protecting buried steel are also often buried, there are no published data, to this author’s knowledge, which present performance characteristics of aluminum or zinc anodes in sand or mud.

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