Cathodic corrosion protection
First Claim
1. A method for cathodically protecting and/or passivating a metal section in an ionically conductive material, comprising:
- providing a storage component of electrical energy with two poles;
providing an anode for communication of an electrical current to the metal section in the ionically conductive material where the anode is of a material which is not sacrificial to the metal section;
electrically connecting one pole to the metal section, electrically connecting the other pole to the anode and placing the anode in ionic contact with the ionically conductive material such that the electrical current can flow from the storage component through the electrical connection to the metal section;
wherein the anode comprises at least part of an outer surface of an outer case of the storage component.
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Accused Products
Abstract
In a method for cathodically protecting and/or passivating a metal section in an ionically conductive material such as steel reinforcement in concrete or mortar, an impressed current or sacrificial anode communicates electrical current to the metal section and a storage component of electrical energy which can be a cell, battery or capacitor is provided as a component of the anode. The storage component can have replacement energy introduced by re-charging or replacing the component from an outside supply. Typically the cell or storage capacitor has an outer case which carries an anode material as an integral outer component.
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Citations
18 Claims
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1. A method for cathodically protecting and/or passivating a metal section in an ionically conductive material, comprising:
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providing a storage component of electrical energy with two poles; providing an anode for communication of an electrical current to the metal section in the ionically conductive material where the anode is of a material which is not sacrificial to the metal section; electrically connecting one pole to the metal section, electrically connecting the other pole to the anode and placing the anode in ionic contact with the ionically conductive material such that the electrical current can flow from the storage component through the electrical connection to the metal section; wherein the anode comprises at least part of an outer surface of an outer case of the storage component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification