Laboratory studies comparing chloride profile data to predictions obtained using ASTM C 1202 (Test Method for Electrical Indication of Concrete's Ability to Resist Chloride Ion Penetration), to predict chloride diffusion into concrete are given in this paper. The diffusion coefficients derived from these data can be used to determine long-term chloride profiles of concrete structures. Equations have been developed relating diffusion coefficients with resistivity and permeability of concrete. One- and two-dimensional models were used to determine chloride profiles of chloride ions entering concrete, in structures such as square piles and decks.

Subject
Steel structures, Silica fumes, Marine environments, Diffusion, Permeability, Structures, Calcium nitrite, Corrosion inhibitors, Piles, Bridges, Chlorides, Concrete, Reinforcement
Keywords:
steel corrosion in concrete, chloride diffusion, concrete parking structures, bridge decks, marine piles, life-time prediction, chloride profiles, silica fume, calcium nitrite, corrosion inhibitors
© 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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