BACK-FILL FOR ELECTRIC PROTECTION

To provide a back-fill for electric protection, which is useful in electric protection of a steel material buried in concrete, and is excellent installation safety.SOLUTION: A back-fill for electric protection 1 is provided in the vicinity of an electrode 14 for electric protection that flows a prot...

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Hauptverfasser:	WATANABE YOSHIHIKO, ABE HIKARI, YOSHIDA TAKAHIRO, SONE YUKIHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BUILDING CEILINGS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INSULATION OR OTHER PROTECTION OF BUILDINGS METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ROOFS WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:	To provide a back-fill for electric protection, which is useful in electric protection of a steel material buried in concrete, and is excellent installation safety.SOLUTION: A back-fill for electric protection 1 is provided in the vicinity of an electrode 14 for electric protection that flows a protection current to a steel material 13 buried in concrete 12 of a concrete structure 11, and contains an electrolytic solution containing an electrolyte, and a liquid holder holding the electrolytic solution. In the back-fill for electric protection 1, 1) the electrolyte contains magnesium acetate, or 2) the electrolyte contains acetate, and the electrolytic solution contains polyalcohol.SELECTED DRAWING: Figure 2 【課題】コンクリート中に埋設された鋼材の電気防食に有用で、施工の安全性に優れる電気防食用バックフィルを提供すること。【解決手段】電気防食用バックフィル１は、コンクリート構造物１１のコンクリート１２中に埋設された鋼材１３に防食電流を流す電気防食用電極１４の近傍に設けられるもので、電解質を含む電解液と、該電解液を保持する液保持材とを含有する。電気防食用バックフィル１は、１）前記電解質が酢酸マグネシウムを含むか、又は２）前記電解質が酢酸塩を含み、前記電解液が多価アルコールを含有する。【選択図】図２