ISSN: 1945-7553
CODEN: JTEVAB
Published Online: 5 April 2010
Page Count: 6

Experimental Determination of Galvanic Anode Current Output for Common Geometries Used in Civil Works Applications

Marsh, Charles P.
U.S. Army Corps of Engineers ERDC-CERL and Dept. of Nuclear Plasma and Radiological Engineering, University of Illinois at Urbana-Champaign, Champaign, IL

Bushman, James B.
Bushman & Associates, Inc., Medina, OH

(Received 24 September 2008; accepted 18 February 2010)

Abstract

The current output from various common galvanic (sacrificial) anode geometries used in immersion service was experimentally determined. The results showed a specific functional dependence on exposed surface area and a scalable inverse relationship to the resistivity of the surrounding electrolyte medium. The use of this information as applied to cathodic protection design is also presented using three of the most readily available freshwater sacrificial anode metal alloys.

Keywords:
galvanic anodes, current output, cathodic protection design, civil works

Paper ID: JTE102139
DOI: 10.1520/JTE102139
ASTM International is a member of CrossRef.