As a part of a major rehabilitation programme of the Sydney Opera House (photo 1), cathodic prevention and cathodic protection systems were installed to protect new precast elements, the soffit and piers under the western broadwalk. The CP installation was carried out using a grid anode installed in the new precast elements, before concrete casting or put in concrete slots cut into the soffit and piers. The system was energised in May 1996. This paper describes the design criteria, installation and system performance after energizing the system.

Subject
Steel structures, Water, Materials, Cathodic protection, Reference electrodes, Installation, Meshes, Steel, Titanium, Elements, Instant off potential, Concrete, Anodes
Keywords:
cathodic prevention, cathodic protection, corrosion in concrete, monitoring, potential
© 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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