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Abstract

This article discusses composition and protective properties of powdered anticorrosion coating for protection of woven reinforcement of armored cement structures against corrosion. It is demonstrated that the developed anticorrosion coatings on the basis of powdered polyphenylene sulfide, grade PFS-L, epoxy paint, grade EK-201, powdered corrosion inhibitor, grade VNKh-L-20, filled with cement, reliably protect reinforcement against corrosion in 3% NaCl solution even at crack opening of 0.1-0.3 µm, which evidences reliable passivation of reinforcement, hence, high lifetime of armored cement structures with reinforcement protected by the recommended anticorrosion coating. Increased lifetime of these structures is achieved by protection of reinforcement prestressed by electric thermal method and application of powdered anticorrosion coating on its surface. The composition of anticorrosion coating, modes of application of the powdered coating onto reinforcement on electrostatic fields are developed.