Electrochemical study on the passive cathodic protection for steel bridge using Al-Zn based sacrificial anode

摘要

1) Anti-corrosion potential of steel plate in this specimen meet the requirement for effective protection.2) Galvanic coupling current density between anode alloy and steel plate was sufficient in various NaCl aq concentration.3) Al-3Zn anode alloy affects the electrochemical properties of steel plate and provides constant protection regardless of NaClaq concentration.