Health Monitoring of Sacrificial Anode Through PZT Transducer

Abstract

This research investigates the long-term viability and effectiveness of sacrificial galvanic anodes in reinforced concrete structures, employing advanced testing, monitoring, and analysis techniques. By focusing on potential difference measurements, health monitoring using PZT transducers, and conductance data, the study provides comprehensive insights into the corrosion protection mechanisms offered by galvanic anodes. Results reveal a high initial rate of corrosion protection, with effectiveness diminishing over time as the anode nears the end of its service life. Continuous monitoring is emphasized as critical for maintaining corrosion protection and ensuring the durability of reinforced concrete. The research compares the performance of two anode types, with Anode A demonstrating superior stability and resistance to degradation compared to Anode B. Furthermore, the study identifies RMSD% as an effective indicator of anode degradation and potential life span, while conductance measurements provide real-time insights into corrosion progression. The findings also confirm the efficacy of cathodic protection through 100 mV depolarization testing. Overall, this study underscores the importance of advanced, non-destructive monitoring techniques to ensure the structural integrity and long-term durability of critical infrastructure, particularly in high-risk environments like bridges and marine installations.