Patent ID: 8968549
Filing Date: 2015-03-03
Classification: C23F,E04C

Abstract:
1. A method for corrosion protection of a metal section in an ionically conductive material comprising: locating a sacrificial anode of a material which is less noble than the metal section in contact with the ionically conductive material; temporarily placing an impressed current anode in ionic connection with a surface of the ionically conductive material; providing a DC power supply; providing a connection of the DC power supply across the impressed current anode and the metal section so as to create a current between the metal section and the impressed current anode to provide cathodic protection of the metal section by communication of ions between the impressed current anode and the metal section through the ionically conductive material; and providing an electrically conductive connection between the sacrificial anode and the metal section to form a circuit with communication of ions between the sacrificial anode and the metal section through the ionically conductive material so that the sacrificial anode acts to provide cathodic protection of the metal section.