In what types of soils are magnesium anodes frequently used?

Magnesium anodes are frequently used in high resistivity soils because these environments can significantly limit the effectiveness of cathodic protection systems. High resistivity soils are characterized by their ability to resist the flow of electric current, which can weaken the protective capabilities of cathodic protection systems that rely on conductive media to effectively manage corrosion. Magnesium anodes provide an efficient means of supplying the necessary cathodic protection in such conditions, as they have a higher driving voltage and are more reactive compared to other types of anodes like zinc or aluminum.

By utilizing magnesium in high resistivity soils, it helps ensure that the anodes can provide adequate protection to underground storage tanks or pipelines at risk of corrosion, thus prolonging their lifespan and maintaining safety standards.