Abstract
Performance enhancing chemicals were applied to metallized zinc anodes on three reinforced concrete field structures: a parking garage, a condominium, and a motorway substructure crosshead. In the parking garage, a structure that contained prestressed, post-tensioned reinforcing steel, 4-hr potential decays averaging 146 mV were measured on tendon anchorages. On the motorway crosshead, polarization was satisfactory 6 months after energizing, but decreased after 9 months operation in galvanic mode. Use of the enhancing agent at the condominium resulted in significant improvement in both protective current and steel polarization.
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2000
Association for Materials Protection and Performance (AMPP)
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