Once an economic luxury, the application of cathodic protection to buried fuel and hazardous material storage facilities is now a regulatory necessity. With the advent of the "Hazardous Solid Waste Amendments of 1984", a myriad of state, federal, and local codes has appeared, making it mandatory to provide facilities which will "prevent releases due to corrosion or structural failure for the operational life of the tank". One technique to achieve this, cathodic protection, has received mixed reception. This is due to misconceptions relative to its application, resulting from variations in tank construction, piping layout and installation practices. This paper will outline the principles of cathodic protection for buried structures, and the major factors to be considered to provide cost effective cathodic protection to these facilities. Coating materials, electrical isolation, backfill type, and monitoring provisions and techniques will be discussed.

To illustrate the potential pitfalls to be avoided in this type of installation, actual case histories will be presented.

Subject
Steel structures, Galvanic anodes, Piping, Cathodic protection, Magnesium anodes, Reference electrodes, Structures, Installation, Potential measurements, Anodic current, Corrosion protection, Soil, Anodes
© 1987 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).
1987
Association for Materials Protection and Performance (AMPP)
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