Port, Jetty and Marine Corrosion Protection

The threat Accelerated low-water corrosion, bacteria and tidal-zone attack remove steel from sheet piles at up to a millimetre a year.

How we protect it Impressed current CP for wharf steelwork, pile wrap systems in the tidal zone and thickness monitoring.

The threat Splash and tidal zones on tubular piles and berthing dolphins corrode fastest and are the hardest to reach.

How we protect it Splash zone coating and petrolatum wrap systems, galvanic anodes on piles and periodic potential surveys.

The threat Buried lines in chloride-rich fill corrode externally, with interference from quay CP systems and shore power.

How we protect it DCVG and CIPS surveys, CP extension to dockside piping and isolation joints at the ship-to-shore connection.

The threat Soil-side corrosion of tank floors on reclaimed land with saline groundwater, and atmospheric attack on shells.

How we protect it Tank-bottom CP, CorroLogic vapour-phase inhibitor under the floor and coating programmes.

The threat Hull coatings and anodes degrade between dockings, with galvanic action between hull, propeller and shore power.

How we protect it Hull CP design and anode replacement, hull potential surveys and coating repair in dry dock.

The threat Marine atmosphere, salt spray and crevices at bolted connections drive atmospheric corrosion of port handling equipment.

How we protect it Coating condition surveys and recoating programmes, inspection of bolted connections and structural NDT.