Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating
Patent
1996-11-08
1998-02-03
Tung, T.
Chemistry: electrical and wave energy
Processes and products
Vacuum arc discharge coating
205731, 205732, 205733, 205734, C23F 1300
Patent
active
057140456
ABSTRACT:
A jacketed anode assembly for use in a sacrificial anode cathodic protection system deployed to impede corrosion of steel or steel reinforcement in pilings or similar supporting columns. A non-conductive jacket formed of mating shell halves is lined along its interior surface with sheets of expanded metal such as expanded zinc. The metal sheets are of a composition higher on the galvanic series than the steel reinforcement such that the sheets serve as sacrificial anodes when coupled with the steel reinforcement. The jacket and zinc lining are installed as a unit on the piling with the jacket interior surface facing the periphery of the piling and in spaced apart relationship therewith. In this space, a filling material can be introduced to both secure the metal sheets in place between the jacket and piling as well as serve as an electrolyte between the steel reinforcement and the metal sheet. The present invention also provides a method for impeding corrosion of a piling by sacrificial anode cathodic protection.
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Lasa Ivan R.
Leng Douglas L.
Powers Rodney G.
Alltrista Corporation
Florida Department of Transportation
Tung T.
LandOfFree
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