CATHODIC PROTECTION

Corrosion of assets can lead to severe consequences such as the deterioration of critical infrastructure, premature failures, reduced lifespans, increased maintenance expenses, compromised public safety, environmental disasters, and the interruption of regular operations.

The most effective strategy to preserving asset integrity and preventing corrosion involves a multi-faceted approach that combines various technologies. While coatings serve as an initial barrier against corrosion, it is unrealistic to expect them to remain completely flawless which is true both initially and over time.  

Cathodic Protection is an electrochemical technique that helps eliminate corrosion cells on the surface of a critical asset by shifting the metallic deterioration to a separate sacrificial feature known as an anode. In situations where various types of structures are buried or exposed to an electrolyte, cathodic protection is widely employed as a defense mechanism to safeguard areas where coatings may be compromised, or not present at all.  When cathodic protection is appropriately applied to both bare and coated structures, it can significantly reduce the occurrence of corrosion by up to 99.9%.

Cathodic Protection is one of our core specialties and our related services include but are not limited to: 

• · Facility assessment and detailed design services
• · Annual survey inspections and/or facility "spot check-ups"
• · Post construction commissioning survey inspections
• · Data analysis and technical reporting
• · DC interference Investigations and mitigation
• · Close Interval potential surveys (CIPS)
• · Direct current voltage gradient surveys (DCVG)
• · Structure current requirement testing
• · Soil resistivity testing - 4 Pin wenner method
• · Impressed current cathodic protection system installations
• · Sacrificial cathodic protection (galvanic anode) system installations
• · Rectifier installations, inspections, and maintenance
• · Remote monitoring unit installations, inspections, and maintenance
• · Thermite welding, pin brazing, and recoating installations
• · Monitoring test installations
• · Coupon, permanent reference electrode, and corrosion rate probe installations