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08064 CP Criteria Assessment in the Presence of AC Interference

Picture for 08064 CP Criteria Assessment in the Presence of AC Interference
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Product Number: 51300-08064-SG
ISBN: 08064 2008 CP
Author: Marco Ormellese, Luciano Lazzari, Sara Goidanich, and Valentina Sesia
Publication Date: 2008
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$20.00
$20.00
The presence of AC may cause serious damage on metallic structures even when cathodic protection is applied and off-potential matches –0.85 V CSE criterion. Uncertainties still exist on protection potential interval and on protection current density to reach an acceptable protection when AC interference is present. In order to investigate these aspects, weight loss tests on cathodically protected carbon steel specimens were performed in laboratory in soil simulated conditions in presence of AC, with densities ranged from 10 to about 500 A/m2, to assess cathodic protection criteria as AC density threshold and protection potential.
The presence of AC may cause serious damage on metallic structures even when cathodic protection is applied and off-potential matches –0.85 V CSE criterion. Uncertainties still exist on protection potential interval and on protection current density to reach an acceptable protection when AC interference is present. In order to investigate these aspects, weight loss tests on cathodically protected carbon steel specimens were performed in laboratory in soil simulated conditions in presence of AC, with densities ranged from 10 to about 500 A/m2, to assess cathodic protection criteria as AC density threshold and protection potential.
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