GALVANIC ANODE AND METHOD OF CORROSION PROTECTION

摘要

A hybrid sacrificial galvanic anode, an anodic system including the hybrid sacrificial anode, and a method of cathodically protecting steel reinforcement in concrete structures is provided. The hybrid anode provides initial steel polarization followed by long term galvanic protection without the use of batteries or external power supplies.

主权项

1. A sacrificial anode body comprising:
a first sacrificial metal; a second sacrificial metal, said second sacrificial metal less electrochemically negative than said first sacrificial metal, wherein said first sacrificial metal and said second sacrificial metal are more electrochemically negative than steel; and an encasement material surrounding said first and second sacrificial metals.