Control of anodic areas
Weber have a number of special inhibiting coatings that can be applied directly to the reinforcement or impregnating ambiodic inhibitors that can migrate to the steel by vapour-phase diffusion, to form a protective passive layer on the steel surface.
BS EN 1504-9
BS EN 1504 Principle 11 is concerned with the control of the anodic area by creating conditions in which potential anodic areas of reinforcement are unable to take part in corrosion process. Coatings can be applied directly to the reinforcement to function as anodic inhibitors or to be barriers. Corrosion inhibitors allow migration to the reinforcement and chemically change the surface of the steel to form a protective passive film.
BS EN 1504-7: Reinforcement corrosion protection
Methods of protection based upon the BS EN 1504 Principle 11 is the use of the following:
- 11.1 Painting reinforcement with coatings containing active pigments.
- 11.2 Painting reinforcement with barrier coatings.
- 11.3 Applying corrosion inhibitors to the concrete