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Sacrificial anodes for harbours

Cathodic protection of harbours can effectively be executed by sacrificial anodes.

The most prevalent solution for cathodic protection of harbours is to install sacrificial anodes, also called galvanic anodes. Most commonly used are aluminium or zinc anodes, but in low salinity water (brackish water) magnesium anodes with higher driving voltage may also be used. You may also want to read about aluminium versus zinc anodes.

Sacrificial anodes for tubular steel piles
Sacrificial anodes for tubular steel piles

To ensure an effective, economical and durable cathodic protection system a proper design must be done. When designing a sacrificial anode cathodic protection system for harbours structures, several parameters are involved.

Environmental conditions, seawater salinity, sediments, type and area of structure to be protected are all important factors for selection of anode types, number, distribution and mounting arrangement of the sacrificial anodes. All carefully considered when designed by our design engineers.

The sacrificial anodes are evenly distributed on the structure to be protected, and mounted with continuous, persistent metallic contact to the structure to be protected. Sacrificial anode systems are normally designed with an expected lifetime of 20 or 50 years.

Sacrificial anodes for sheet pile wall
Sacrificial anodes for sheet pile wall