| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric anticorrosion method of a galvanic anode system, in which exfoliation of a hydrogel from a concrete structure and an anode can be suppressed.SOLUTION: In the electric anticorrosion method of the concrete structure, such the galvanic anode system is used that a protection current is made to flow between the anode, which is disposed on the surface of the concrete structure with the hydrogel being interposed therebetween, and a cathode being the steel in the concrete structure. The hydrogel contains a polymer matrix, water, an electrolyte and polyhydric alcohol. The polymer matrix comprises a copolymer of a nonionic monofunctional monomer having one polymerizable carbon-carbon double bond with a polyfunctional monomer having at least one of an amide group and an ester group, and two or more polymerizable carbon-carbon double bonds. |
