Cathodic Protection

Cathodic Protection

The Definitive Answer to Concrete Deterioration

Concrete deterioration, primarily due to corrosion of the embedded reinforcement steel, is a major source of damage in concrete structures. One of its causes is the use of chlorides, which were historically added to concrete to expedite curing in a wide range of structures such as viaducts, bridges, tunnels, quay walls, monuments, swimming pools, floors, gallery flats and industrial buildings. Without intervention, this deterioration, often referred to as concrete decay, not only persists but accelerates. Cathodic protection emerges as the only truly effective solution, and our team of concrete experts are leaders in this field.

Understanding Cathodic Protection

The corrosion of reinforcing steel within concrete, triggered by exposure to water and oxygen, is an electrochemical process where the steel alternates between being an anode (positive) and a cathode (negative). Cathodic protection involves controlling this process by applying an electric current through the concrete structure. This is achieved with strategically placed anodes within the structure. The current from these anodes ensures that the concrete structure remains in a constant cathodic state, effectively halting corrosion. Vogel, a part of Mourik, specialises in this cathodic protection technique.

Cathodic protection stands out as the sole method to halt chloride-induced concrete decay. While existing damage must be addressed, there is no need for extensive demolition and reconstruction. And the results of cathodic protection are guaranteed. This method can be applied to nearly all concrete structures. At Vogel, we implement it in various structures, including beam constructions, bridges, overpasses, balconies and gallery floors. Unlike traditional repair techniques, cathodic protection also serves a preventive function. Each system we install is accompanied by a guarantee. We conduct annual operational checks and offer the capability for remote monitoring and adjustments.