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Patent Searching and Data


Title:
ELECTRIC PROTECTION DEVICE FOR CONCRETE STRUCTURE
Document Type and Number:
Japanese Patent JP2015232168
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a protection device for a concrete structure where, to the loss of the moisture in a block member caused by a corrosion resistant galvanic action, the replenishment of the moisture is always made possible, the phenomenon that the circulation of electricity is cut-off even in use for long years and electromotive force is not generated can be prevented, and mass-production is possible in a factory using an inexpensive material is made possible.SOLUTION: Provided is an electric protection device 1 for a concrete structure where, into a block member 4 with ion conductivity and electric insulation properties filled with an anode 3 made of a metal having an ionization tendency than a steel incorporated into a concrete structure, a moisture absorbent is incorporated to form a block structure, and, in a state where a part of the block member in the block structure 2 is contacted with the concrete structure, fixing is performed, thus a potential difference produced between the anode 3 and the steel incorporated into the concrete structure is utilized to prevent the corrosion of the steel caused by the disappearance of the ions in the steel. The exposed part of the block structure 2 into the air is covered with a gas permeable film (sheet) 6.

Inventors:
TAGAMI MASAO
Application Number:
JP2014120028A
Publication Date:
December 24, 2015
Filing Date:
June 10, 2014
Export Citation:
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Assignee:
SEIWA KOGYO KK
International Classes:
C23F13/00; E02D31/06; E04B1/62; E04B1/64
Attorney, Agent or Firm:
Katsuhiko Hashimoto
Kyoko Hashimoto