When protection of the reinforcing steel is inadequate or insufficient (thickness of the reinforcement cover, nature and installation of the conglomerate, reinforcing rods), the steel is exposed to the atmospheric agents (sulphates, chlorides and nitrates) contained in the rainwater, and this causes a significant drop in the PH value, kicking off the oxidation process by which oxygen causes a progressive swelling of the steel.
Ivas Industria Vernici Spa
