This AMPP standard practice presents guidelines for galvanic cathodic protection (GCP) of reinforcing steel in atmospherically exposed concrete elements or structures. These guidelines are intended for owners, engineers, architects, contractors, and those concerned with the mitigation of reinforced concrete corrosion through the application of GCP systems. The information in this standard as it relates to GCP systems is intended for atmospherically exposed concrete structures and is not applicable to concrete with nonferrous reinforcement or epoxy-coated, galvanized, or other types of coated reinforcement. GCP applications for buried and submerged reinforced concrete structures are not addressed in this standard.

Keywords: Atmospherically exposed concrete, reinforced concrete, prestressed concrete, cathodic protection, electrical continuity, galvanic, instant-off potential, polarization, reference electrode, galvanic cathodic protection, GCP