ISO 15630-3 2019 Steel for the reinforcement and prestressing of concrete — Test methods — Part 3 Prestressing steel.pdf

INTERNATIONAL ISO STANDARD 15630-3 Third edition 2019-02 Steel for the reinforcement and prestressing of concrete-Test methods- Part 3: Prestressing steel Aciers pour I'armature et la precontrainte du beton-Methodes d'essai- Partie 3:Aciers de precontrainte Reference number ISO15630-3:2019(E) ISO 十力 Copyright Organization for Standardization ISO2019 ISO15630-3:2019(E) ! COPYRIGHT PROTECTED DOCUMENT ©ISO2019 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 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 CP401Ch.de Blandonnet8 CH-1214 Vernier Geneva Phone:41227490111 Fax:41227490947 Email:copyright@iso.org Website:.iso.org Published in Switzerland Copyright @ISO 2019-All rights reserved ISO15630-3:2019(E) Contents Page Foreword Introduction vi 1 Scope 1 2 Normative references 1 3 Terms definitions and symbols 1 4 General provisions concerning test pieces 3 5 Tensile test 4 5.1 Test piece 4 5.2 Test equipment. 4 5.3 Test procedure.... A 5.3.1 General 5.3.2 Determination of the modulus of elasticity 5 6 Bend test 6 6.1 Test piece.......... 6 6.2 Test equipment 6 6.3 Test procedure 6 6.4 Interpretation of test results 7 7 Reverse bend test............. 7 7.1 Test piece............... 7 7.2 Test equipment 7 7.3 Test procedure.......... 8 8 Wrapping test.............. 8 8.1 Test piece........ 8 8.2 Test equipment 8 8.3 Test procedure. 8 9 Isothermal stress relaxation test 9 9.1 Principle of test. 9 9.2 Test piece............... 9 9.3 Test equipment. 10 9.3.1 Frame........ 10 9.3.2 Force-measuring device 10 9.3.3 Length-measuring device (extensometer) 10 9.3.4 Anchoring device................. 10 9.3.5 Loading device...