The evaluate tendencies of corrosion process for reinforcing steel when covered with special polymer sulfur coating

This paper presents investigation results of corrosion rate for St3S reinforcement bars that have been covered with special polymer coating as the industrial waste material and have been exposed to tensile stresses in a solution simulating pore-liquid of concrete. Potentiostatic investigation has been carried out in order to determine parameters describing corrosion rate of samples tested. l decrease of corrosion rate has been found for the steel that has not been covered with special polymer coating when placed in model pore-liquid of concrete and exposed to tensile stress increasing. Corrosion rate for the steel has decreased by 3–4 orders of magnitude when covered with protective special coating as the industrial waste material even though this latest became unseal at load exceeding 2.5–5.5 kN.