cathodic protection


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cathodic protection

[kə′thäd·ik prə′tek·shən]
(metallurgy)
Protecting a metal from electrochemical corrosion by using it as the cathode of a cell with a sacrificial anode. Also known as electrolytic protection.

cathodic protection, electrolytic protection

A method of protecting a ferrous metal structure, which is embedded in water or moist soil, from corrosion due to galvanic action; usually by attaching it to a metal rod which is more electronegative than the structure, or by counteracting the current which is the source of corrosion by another one (in the opposite direction) which just balances it.
References in periodicals archive ?
Kantex is a provider of cathodic protection and vacuum excavation services to the oil and gas, civil and municipal markets.
According to Li and Du, [27], calcareous deposits will form on the protected steel surface after cathodic protection in seawater.
Cathodic protection is a technique to reduce the corrosion rate of a metal surface by making it the cathode of an electrochemical cell [20].
With this partnership, Implicit expands its service offering to include cathodic protection. Its current Right Smart(TM) product line monitors electronic flow meters, tanks, compressors, and pump off controllers.
In this study, researchers looked at 20 highway structures (19 bridges and 1 tunnel) protected by one or more cathodic protection systems.
The companies receiving contract extensions for cathodic protection of pipelines include Trident Alloys and Jotun Cathodic Protection.
"These systems provide cathodic protection for the trans-Alaskan pipeline and must operate with utmost reliability in extreme and adverse conditions."
The process known as "cathodic protection" forces moisture away from the steel supports at the core of concrete pillars which can lead to weaken-ing of the structure.
"About 1 percent could be saved by using cathodic protection, by using the right kind of building materials or by using the right kinds of inhibitors.
Cathodic protection (CP) using impressed current is an accepted and common method to provide corrosion protection to steel in concrete.