Polarization Decay Fit for Assured Cathodic Protection of Steel Structures: Final Report on Project F12-AR03
Army Engineer Research and Development Center Champaign United States
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Corrosion is the number-one cause of damage to industrial waste lines, potable water distribution systems, heat distribution pipes, and underground storage tanks. Besides costing millions of dollars annually to repair, corrosion at military installations can adversely impact mission objectives through the catastrophic failure of mission-critical infrastructure. This project sought to develop a technology to quickly and more reliably predict the achievement of the NACE International 100 mV polarization shift cathodic protection criterion for large metallic structures. By basing the prediction on sufficient initial short-term data, any error associated with long-term environmental changes e.g., moisture, temperature changes, and soil compaction is avoided. Time savings for reduced measurement labor is a related benefit. Overall, the technology was validated at a proof-of-principle level. While not yet ready for immediate implementation, the technology merits further coordinated development. Wider testing and field demonstration, followed by a concerted and long term criteria acceptance effort, are still required. Once fully implemented, the projected return on investment is projected to be 8.55.
- Properties of Metals and Alloys
- Logistics, Military Facilities and Supplies