ISO INTERNATIONAL STANDARD 1920-2 Secondedition 2016-11-01 Testing of concrete Part 2: Properties of fresh concrete Essais du béton - Partie 2: Caractéristiques du beton frais Reference number AX IS0 1920-2:2016(E) ISO @IS02016 IS0 1920-2:2016(E) 2 COPYRIGHTPROTECTEDDOCUMENT @ IS0 2016, Published in Switzerland 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 writtenpermission.Permission canberequestedfromeitherIsOattheaddressbelow orIso'smemberbodyinthecountryof the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41227490111 Fax +4122 749 09 47 [email protected] www.iso.org ii @ IS0 2016 - All rights reserved IS0 1920-2:2016(E) Contents Page Foreword .V Introduction .vi 1 Scope 1 2 Normativereferences 1 3 Terms and definitions 1 4 Determination of consistence .2 4.1 General. 2 4.2 Sampling. 2 4.3 Slump test. 2 4.3.1 Principle 2 4.3.2 Apparatus 2 4.3.3 Procedure 3 4.3.4 Test result 4 4.3.5 Test report 5 4.4 Vebetest 5 4.4.1 Principle. 5 4.4.2 Apparatus. 5 4.4.3 Procedure 8 4.4.4 Test result. 8 4.4.5 Test report 9 4.5 Degree of compactability test. 9 4.5.1 Principle 9 4.5.2 Apparatus. 9 4.5.3 Procedure 10 4.5.4 Test results 11 4.5.5 Test report 11 4.6 Flow-table test. 12 4.6.1 Principle 12 4.6.2 Apparatus 12 4.6.3 Procedure. 14 4.6.4 Test results 15 4.6.5 Testreport 15 4.7 Slump-flow test 16 4.7.1 General. 16 4.7.2 Principle 16 4.7.3 Apparatus 16 4.7.4 Procedure 17 4.7.5 Test report 18 5 Determination of fresh density 19 5.1 Principle. 19 ? 5.2 Apparatus 19 5.3 Sampling. 20 5.4 Procedure 20 5.4.1 Mass of the container. 20 5.4.2 Filling the container.. 20 5.4.3 Compacting the concrete 20 5.4.4 Surface levelling 21 5.4.5 Determining the mass and volume of the container .21 5.5 Test result. 21 5.6 Test report. 21 6 Determination of air content 22 6.1 General. 22 @IS02016-All rightsreserved ili