Realkalization and dechlorination of concrete by surface...

Details Realkalization and dechlorination of concrete by surface... Realkalization and dechlorination of concrete by surface...

C - Chemistry, Metallurgy

23

F

C23F 13/08 (2006.01) C04B 41/72 (2006.01) C23F 13/00 (2006.01) C25F 7/00 (2006.01) E04B 1/64 (2006.01)

Patent

CA 2127607

ABSTRACT OF THE DISCLOSURE A method for realkalising and dechlorinating corroded areas of reinforcement steel in concrete and masonry electrochemical means, characterised by an electrode (anode) composed of alkaline salts upon which is superimposed electrically conductive material. When the current is switched on, alkalinity is generated at the cathode (steel bar), by the production of hydroxyl ions, while chloride ions at the cathode (steel bar), being electrical charge carriers, also migrate toward the anode under the influence of the current flow. 12

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