Corrosion of galvanized piles in soil is a serious financial and technical problem for solar companies. Underground corrosion is the primary cause of material degradation at solar farms in corrosive environments. Accordingly, accurate and practical methods to predict corrosion modes and corrosion rate are extremely beneficial for corrosion risk assessment, coating, cathodic protection and service life of galvanized piles. Effects of soil chemistry and grounding on corrosion of galvanized piles are evaluated. A predictive model to estimate the corrosion rate and remaining service life of buried galvanized steel piles are introduced. Case histories representative of different corrosion levels are presented and relevant mitigation, coating and cathodic protection are given time permitting.
• Corrosion Risk Assessment
• Soil Corrosivity and GIS Mapping
• Corrosion Mitigation
• Coating Selection
• Cathodic Protection Design and Installation