The development and acceptance of criteria for the performance evaluation of cathodic protection systems for reinforcing steel in concrete is still in the evolutionary stage. The fact that it took 6 years and some 17 Drafts to arrive at RP 0290-90, is an example of the difficulty in arriving at a consensus criteria based on documented field data. The civil or structural engineers who typically have overall responsibility for the restoration and protection specifications for parking garages showing signs of corrosion induced distress have not readily accepted the methods used in evaluating topside bridge deck installations as being applicable to conductive coating systems installed on the soffit of slabs in parking garages. This paper describes some practical field tests which have been developed to confirm the proper function of the physical components of a system, and to evaluate the effectiveness of the cathodic protection provided by a conductive coating system applied to the soffit of two poured in place, conventionally reinforced underground parking garages.

Subject
Electric current, Steel structures, Cathodic protection, Graphite, Electrical conductance, Slabs, Steel, Buildings and structures, Polarization, Instant off potential, Concrete, Electrode potential, Anodes
© 1991 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).
1991
Association for Materials Protection and Performance (AMPP)
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