A five-year study to evaluate the long-term performance of various cathodic protection systems installed on bridge deck and substructure elements and on the underside of a roadway slab inside a tunnel was initiated in 1994. This work was a continuation of a portion of the research completed under the structures segment of the Strategic Highway Research Program The performance of 10 of the cathodic protection systems included in this study is discussed. These systems have been in service from 5 to 15 years.

Subject
Electric current, Anode systems, Titanium mesh, Electrochemical cells, Voltage, Probes, Rebar, Rectifiers, Bridges, Polarization decay, Concrete, Electrode potential, Anodes
Keywords:
Cathodic protection, bridge deck, bridge substructure, rectifiers, embedded reference cells, current probes, voltage probes, null probes
Government work published by the Association for Materials Protection and Performance (AMPP) with permission of the author(s). Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1999
GOV
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