A study of ZnO as corrosion inhibitor in reinforced concrete, which were prepared with salty water, will be presented. This inhibitor was evaluated in the laboratory during three years and its behaviour is compared with Ca(NO2)2 inhibitor and their mixtures.

Initially, the physical-chemical properties of the mortar prepared with those inhibitors was performed. Further, they were evaluated electrochemically in the laboratory, for almost three years.

The results indicate that the performance of ZnO is better that the one found with Ca(NO2)2.

Subject
Steel surfaces, Water, Cylinders, Probes, Rebar, Mortar, Mixtures, Zinc oxide, Chemical inhibition, Corrosion inhibitors, Steel, Corrosion potential, Concrete
Keywords:
Corrosion of Reinforcing steel, Corrosion Inhibitors, Zinc Oxide, Calcium Nitrite
© 1993 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).
1993
Association for Materials Protection and Performance (AMPP)
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