ISO INTERNATIONAL STANDARD 21022 First edition 2018-11 Test method for fibre-reinforced cementitious composites Load- deflection curve using circular plates Methode d'essaides composites a basede ciment renforces par des fibres-Courbe de charge-deformation utilisant des plaques circulaires Reference number IS021022:2018(E) ISO @IS0 2018 IS0 21022:2018(E) COPYRIGHTPROTECTEDDOCUMENT IS02018 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+4122749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2018 - All rights reserved IS021022:2018(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normativereference. 3 Terms and definitions 4 Symbols 5 Test specimens. ..3 5.1 Geometry. .3 5.2 Fabricationofspecimens .4 6 Testing machine and measuring devices .5 6.1 Testing machine .5 6.2 Loading fixtures for concentric ringtesting .6 6.2.1 General. .6 6.2.2 Loadingand supportrings ..6 6.2.3 Compliantlayerand friction elimination .6 .1 6.3 Alignment 6.4 Measuring device for loads. 7 6.5 Measuringdevicefordeflection .7 6.6 Data acquisition 8 7 Testprocedure .8 7.1 Preparation and positioning of specimens .8 7.2 Loading .8 7.3 Assessmentoffracturepatterns .8 8 Calculations. .9 9 Test report .11 Bibliography ..13 @IS0 2018-All rights reserved ili