Cathodic Protection

Corrosion of steel in concrete is probably the single most serious cause of deterioration of reinforced concrete structures. Buildings, bridges, car parks, jetties and other structures suffer from chloride induced corrosion largely due to de-icing salts, sea salts and salts cast into the concrete.

Impressed CP systems provide constantly adjustable protection against corrosion. Monitoring of other circumstances, including passive CP, can provide information to allow further intervention, however impressed CP systems can be designed to both monitor and react to certain predetermined conditions, maximising the benefits of a smart system. Design and installation of impressed and galvanic systems is complimented by a full range of associated repair coatings, corrosion inhibitors, and silane treatments.

CP can also be applied to steel frame buildings where the frame is encased in masonry or brickwork with reasonably consistent contact between the mortar and the steel. Individual evaluation of the circumstances is required to ensure appropriate action is taken.