Marlin Hansen
Andrea Hansen
Angel Green
Alla Furman
 Jessica Meyer

Cortec Corporation

4119 White Bear Parkway

St. Paul, MN 55110

One of the methods of corrosion protection of metal reinforcement in concrete is cathodic protection.  This protection can be achieved by different arrangements including sacrificial coatings.  Several companies have made an attempt to create such a product, including 3M, NASA, and others.  The goal of this study was to evaluate one existing formulation and optimize the corrosion protection by adjusting powders, resins, and installation techniques.  A number of electrochemical techniques were utilized for measuring parameters of the galvanic coating.  These laboratory and field techniques include electrochemical potential, electric resistance, corrosion current, and others.  The study also addressed parameters such as pot life of the coating, installation materials, etc.

It was confirmed that the effectiveness of the coating greatly depends on its conductivity and installation technique.  Field applications are under evaluation.  Results of these studies will be included.