The corrosion behavior of buried water transmission pipelines is affected by environmental factors such as soil resistivity, soil composition, pH, and electrical interference from AC and DC power sources. Several methods to control corrosion, including materials selection, use of coatings, and cathodic protection, have been developed and are addressed in this paper. Effective design and testing of cathodic protection systems associated with water transmission lines require a conscious analysis of the structure to be protected and must consider the characteristics of the pipe material.

Subject
Water, Materials, Piping, Cathodic protection, Pipe to soil potential, Transmission pipelines, Pipelines, Soil resistivity, Ductile iron pipe, Corrosion protection, Soil, Concrete, Electrolytes
Keywords:
Water transmission pipeline, concrete cylinder pipe, dielectrically coated steel pipe, ductile iron pipe, cathodic protection, corrosion control methods, testing of cathodic protection systems
© 2005 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).
2005
Association for Materials Protection and Performance (AMPP)
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