Acid-soluble and Water-soluble Chloride – Testing Proficiency and Specification  

Author: W. South, W.A. Thomas, V. Sirivivatnanon
Type: Article in proceedings
Date: 2015-08-31
Publisher: Concrete Institute of Australia City: Melbourne, Australia
Source: Proceedings of the concrete 2015 conference: 27th biennial national conference of the concrete institute of Australia in conjunction with the 69th RILEM week conference, 2015, pp. 502–513.
 ISBN: 978-1-943847-70-9  

Keywords: Acid-soluble, water-soluble, chloride, performance limit   Rights:   (c) 2015 the authors  

The importance of limiting the chloride ion content in concrete has always been recognised and specified in structural concrete specifications. The Australian Standard test method for acid-soluble chloride has been revised and published as AS 1012.20.1. At the same time, a newly developed water-soluble chloride test method has been published as a parallel Australian Standard AS 1012.20.2. The paper reviews and report the proficiency of the two test methods and the relationship between acid- and water-soluble chloride based on research and proficiency testing program conducted by Cement Concrete and Aggregates Australia (CCAA). Performance limits specified in international concrete standards are reviewed and recommended to be specified in relevant Australian standards and specifications.