Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1987-12-23
1989-08-29
Tung, T.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204412, 204435, G01N 2746
Patent
active
048614530
ABSTRACT:
A corrosion detecting probe is to be used in combination with a known electrochemical measuring apparatus for inspecting corrosion state of a steel material buried in a concrete structure. The probe comprises a container made of an electrically insulating material and having an open end adapted to be placed in close contact with a surface of the concrete structure, a cover closing the open end and made of a porous and liquid permeable material, an electrolyte liquid solution filling the container so that the cover is sufficiently impregnated with the solution, and an electrode assembly mounted within the container so as to be immersed at least partially in the electrolyte solution. The electrode assembly includes an elongated reference electrode having a free end portion at least partially immersed in the electrolyte solution, a counter electrode having an electrode plate of a symmetrical configuration with respect to the free end portion of the reference electrode and distanced therefrom, and a current flow line control electrode having an electrode plate of a symmetrical configuration with respect to the free end portion of the reference electrode and disposed in a same plane as the electrode plate of the counter electrode at a distance therefrom.
REFERENCES:
patent: 4695360 (1987-09-01), Asatiani et al.
Corrosion 987, Mar. 9-13, 1987, "Monitoring of Corrosion of Reinforcing Bar in Concrete", K. Matsuoka, Paper Number 121.
Ito Satoshi
Kihira Hiroshi
Matsuoka Kazumi
Murata Tomomi
Nippon Steel Corporation
Tung T.
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