Abstract
Test results are presented for a buried and cathodically protected structure coupled to a copper ground. When the 100 mV criterion is applied on a structure polarized by foreign uninterruptible current sources, the structure potential decays to its polarized potential instead to its corrosion potential making the use of the 100 mV criterion questionable. Use of coupons eliminates this problem because the coupon potential after interruption always decays to its corrosion potential.
© 2001 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. 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).
2001
Association for Materials Protection and Performance (AMPP)
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