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Magnesium anode in backfill

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Of all available anode material, magnesium is the one who has the highest driven voltage. Because of this, magnesium anodes are used advantageously in soil and water with high resistivity.

Normally there are two different qualities being used, standard potential ( 1.5V ) and high potential (1.7V).

When the anodes are intended for land installation, they are delivered as standard with a backfill mix of bentonite.

Magnesium anodes in backfill are often used in temporary protection systems of land and other pipelines during construction and before the energizing of the impressed current system. The anodes are easily installed within pipe trench as construction proceeds; additional excavation is not required.  

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