ISO INTERNATIONAL STANDARD 1920-11 Firstedition 2013-05-01 Testing of concrete Part 11: Determination of the chloride resistance of concrete, unidirectional diffusion Essaisdubéton- Partie11:Déterminationdelaresistancedubétonalapénétration deschlorures,diffusionunidirectionnelle Reference number ISO1920-11:2013(E) LSO CopyihtInternatinal Organization for Standardization @IS02013 ed without license from IHS Not for Resale IS01920-11:2013(E) COPYRIGHTPROTECTEDDOCUMENT ISO2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56.CH-1211 Geneva 20 Tel. + 4122 749 0111 Fax +41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2013 - All rights reserved No reproduction or networking permited without license from IHS Not for Resale IS0 1920-11:2013(E) Contents Page Foreword ..iv Introduction. 1 Scope. ..1 2 Normative references 3 Terms and definitions ..1 4 Principle .2 5 Reagents and apparatus .3 5.1 Reagents.. .3 5.2 Apparatus. .4 6 Preparationofspecimens .5 6.1 Preparing sub-specimens .5 6.2 Conditioning and preparation of profile specimen forchloridetesting .6 7 Procedure. .7 7.1 Exposureconditions. .7 7.2 Exposure method .8 7.3 Exposure period .8 7.4 Determination of initial chloridecontent (Ci) ..8 7.5 Profile grinding. .9 7.6 Chloride analysis .9 8 Regressionprocedureandexpressionofresults .9 9 Test report ..11 10 Precision ..12 AnnexA(informative)Diffusioncoefficients ..13 AnnexB (informative)Coretestspecimen. ..14 AnnexC (normative)Immersionmethodforlargespecimens ..15 AnnexD(informative)Typicalequipmentandprocedureforvacuum saturation .16 ..18 AnnexF (informative) Depth intervals of profile specimengrinding .20 orStana iii ut license from IHS Not for Resale