Corrosion Control through Cathodic Protection
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| With more than three decades of experience, CP Solutions, Inc.® specializes in corrosion control engineering and consultation services for municipal, industrial and commercial infrastructure. |
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What is Cathodic Protection?
Cathodic protection (CP) is a means of corrosion protection using electrochemical means, minimizing the anodic dissolution of a metallic structure. This is done by reducing the electrical potential energy difference between the anodic and cathodic sites on the surface of a metal when it is placed into a conductive electrolyte, which could be either soil, water, or even concrete.
In theory, CP is achieved when the open-circuit potential of the cathodic sites are polarized to the open-circuit potentials of the anodic sites. The goal is to make the entire structure a cathode (current receiver) relative to an expendable or replaceable anode (current provider).
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Performance Criteria
The National Association of Corrosion Engineers® (NACE International) has established specific criteria for metals placed into a variety of electrolytes. A compentent corrosion engineer must keep these CP criteria in mind when deciding what level of cathodic protection to apply to a metallic structure.
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Cathodic Protection Methods
Although are many geometric variations on how a cathodic protection system can be installed, there are just two basic methods of applying cathodic protection. The first method is called sacrificial anode cathodic protection (installing galvanic anodes) and the second method is known as impressed current cathodic protection (installing rectified anodes).
Practical Benefits of Applying Cathodic Protection
• Reduction in the Cost of Infrastructure Corrosion
• Reduction in Infrastructure Failures
• Reduction in Product Loss due to Corrosion
• Reduction in Downtime for Emergency Repairs
• Increased Infrastructure Service Life
• Increased Level of Infrastructure Service to Customers
• Increased Health and Security to Buried Infrastructure
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Economic Benefits of Applying Cathodic Protection
Implementing an engineered corrosion protection program through the application of cathodic protection commonly saves between $5–$10 for every $1 spent. |
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The CP Solutions Difference
Jeff Schramuk, Owner and President of CP Solutions, Inc.®, is committed to providing each of his customers personal attention, high quality services, and attention to detail without product or material bias. Most projects are earned through prior customer referrals and professional references. |
| Contact CP Solutions, Inc. to learn how the use of cathodic protection can sustain your critical metallic infrastructure! |
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