METHOD FOR PREVENTING CORROSION OF STEEL STRUCTURE

摘要

PURPOSE:To form a steel structure capable of being coated even in the water by applying electrolytic protection treatment to the structure in a wet state after the surface of the submerged steel structure is cleaned and before the anticorrosive coating is applied. CONSTITUTION:The surface of the submerged steel structure is cleaned, and then applied with the anticorrosive coat with the use of water-curing paint or water-curing putty. In this case, electrolytic protection treatment is applied to the surface while keeping the surface wet after the surface is cleaned and before the anticorrosive coat is applied. An external energizing system or a galvanic anode system can be used for the electrolytic protection treatment, and the anticorrosive current density is controlled to about 50-500mA/m<2>. By this method, a steel structure capable of being easily coated even in the water by the same operation as that on the ground is obtained.