The Galvanic Anode Committee was formed in order to investigate the different types of metals which are suitable for galvanic anodes to supply current for cathodic protection of metal structures in soils or in solutions. Tests are being made to determine what effect the impurities in the metals may have on the solution potential, resistance of the corrosion products and current efficiency. A variety of chemical backfills are being investigated in order to determine the most suitable types of backfills and methods of installing backfills for various localities and soil and moisture conditions.
The First Interim Report covers test data presented on two large installations of galvanic anodes in the vicinity of Houston, Texas, a small installation of aluminum anodes near Edna, Texas, and a small installation of magnesium anodes in manholes to protect electric lead cable sheaths in Miami, Florida.
The test anodes were usually installed on operating structures...
