By embedding various steel rebars in the concrete blocks mixed with artificial sea water whose amounts are 0.5% and 1.0% as NaCl in fine aggregate, and exposing these concrete blocks to wet and dry condition at 80°C for long term of 56 to 100 or 233 days, we examined the concrete deterioration and the corrosion behaviours of the embedded rebars. From this experiment, we could confirm that Cu-W bearing- and 3.5% Ni high purified steel rebars show excellent corrosion resistance against sea water corrosion attack. In addition, we could indicate that Ni-W bearing high purified steel rebars are also promising. in this paper, the comparison of the corrosion resistance of these steel rebars with that of the ordinary steel rebars are represented and their corrosion prevention mechanism is discussed by applying semi-conductor theory.

Subject
Water, Rebar, Oxide layers, Sodium chloride, Cleavage, Chloride ions, Aggregates, Steel rebar, Rust, Construction, Elements, Chlorides, Concrete
© 1986 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).
1986
Association for Materials Protection and Performance (AMPP)
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