User:Glenn Summers

Care should be taken to elaborate on the uses for Galvanic cathodic protection. Untold thousands of problem concrete structures are being repaired and receive a Galvanic Anode, that is designed to become the sacrificial element, thus protecting the steel. It should be noted that the amount of current produced by these devices (often called Hockey Pucks) is very low and ineffective when used on an elevated concrete material. A concrete that is not immersed in water and exposed to the atmosphere has a higher resistance (ohms)to the passage of electrical current. A combination low voltage and a high resistance electrolyte render this type of galvanic protection useless when used incorrectly.