Abstract
The appearance of corrosion of reinforcing steel in a seawater aquarium prompted investigations to identify possible causes of the problem. Visual observations of the reinforced concrete together with measurements of oxygen concentrations and oxygen-reduction potentials of the seawater in different parts of the system suggested that an oxygen concentration cell may be present and accelerating the corrosion process. This was investigated by placing electrically connected steel weight loss coupons in areas of high and low redox and monitoring surface potential and current flow. The results demonstrated that corrosion could be driven by oxidation differentials.
© 1992 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).
1992
Association for Materials Protection and Performance (AMPP)
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