Abstract
This paper will present design and operating data from an aluminum anode CP system for four large (12'x12'x1500' long - 3.6x3.6x460M long) steel reinforced concrete tunnels exposed to moving seawater. The actual, monitored anode current output vs polarization of the rebar measured with permanently embedded reference electrodes will be compared to the predicted design calculations. Interesting aspects of the project include the large amount of cathodic polarization observed on the outer rebar mat through the two foot (0.6 meter) thick tunnel walls and the effect of anode current loading on the aluminum anode current output.
© 1997 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).
1997
Association for Materials Protection and Performance (AMPP)
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