Corrosion Control

Corrosion Control

Corrosion monitoring in concrete has become increasingly important especially in reinforced concrete infrastructure. The steel reinforcement in concrete structures is susceptible to corrosion when chloride ions enter into the concrete from de-icing salts applied to the concrete surface, or from seawater in marine environments. If chlorides are present in sufficient quantity, they disrupt the passive film on the reinforcing steel, resulting in corrosion. Oxygen content, moisture availability and temperature also affect this corrosion rate. Corrosion of the reinforcing steel can weaken the structural strength; create cracking, delaminating and spalling of the concrete.