Corrosion of reinforced concrete is causing the early failure of structures in environments where concrete is subjected to ingress of chlorides. One means of protecting the steel from corrosion is to add a corrosion inhibitor to the concrete. The advantages are that the inhibitor is distributed throughout the concrete protecting all the steel, and that concrete's low permeability prevents the inhibitor from being lost. The disadvantage is that the inhibitor must not be detrimental to concrete properties. In this paper a review of early research on concrete inhibitors is given and it is shown how the search for an inhibitor that did not adversely affect concrete properties led to the development and usage of calcium nitrite.

Subject
Test methods, Sodium nitrite, Inhibitor performance, Scale inhibitors, Corrosion cracking, Calcium nitrite, Chemical inhibition, Sodium, Corrosion inhibitors, Steel, Corrosion protection, Chlorides, Concrete
© 1989 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).
1989
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.