EP 2004875 A1 20081224 - ANODE FOR CATHODIC PROTECTION
Title (en)
ANODE FOR CATHODIC PROTECTION
Title (de)
ANODE FÜR KATHODISCHEN SCHUTZ
Title (fr)
ANODE POUR PROTECTION CATHODIQUE
Publication
Application
Priority
- CA 2007000260 W 20070221
- CA 2538949 A 20060307
Abstract (en)
[origin: CA2538949A1] An anode for use in cathodic protection of steel in concrete is formed from an electrically conductive material such as zinc and an ionically conductive material which is preferably a humectant and/or has a pH greater than 12 to enhance current flow. The materials are intimately intermixed through at lea st a part of the anode body and compressed into the anode body with an electrical connecting lead formed into a core of the body which is wholly conductive material. Portions of the electrically conductive material are pressed into electrical contact to form a plurality of electrically conductive paths within the anode body. Man y of the voids in the body are interconnected to form a plurality of ionically conductive paths through the anode body by causing the humectant to migrate through the voids . The large surface area between the ionically conductive paths and the electrical ly conductive paths increase significantly the contact surface area of the anod e body to increase current flow.
IPC 8 full level
C23F 13/10 (2006.01); C23F 13/06 (2006.01)
CPC (source: EP)
C23F 13/06 (2013.01); C23F 13/10 (2013.01); C23F 2201/02 (2013.01)
Citation (third parties)
Third party :
- US 5292411 A 19940308 - BARTHOLOMEW JOHN J [US], et al
- VRABLE J.B.: "Cathodic protection for reinforcing steel in concrete", ASTM STP 629, 1977, pages 124 - 149, XP003030740
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
CA 2538949 A1 20070907; AU 2007222909 A1 20070913; AU 2007222909 B2 20120503; EP 2004875 A1 20081224; EP 2004875 A4 20091230; EP 2004875 B1 20190911; WO 2007101325 A1 20070913
DOCDB simple family (application)
CA 2538949 A 20060307; AU 2007222909 A 20070221; CA 2007000260 W 20070221; EP 07701806 A 20070221