Reinforcements in contact with humidity and chlorides (de-icing salts, etc.) oxidise, leading to an increase in volume which splits the concrete and weakens the mechanical strength of the elements concerned. In order to solve this problem, Guard Industrie developped with Evonik-Degussa ImperGuard® CP, designed to prevent penetration of water and chlorides and reduce concrete reinforcement corrosion. Unlike commercially available corrosion inhibitors, ImperGuard® CP penetrates very deeply into concretes (to a depth of several centimetres) and thus efficiently protects concrete.