Steel for the reinforcement and prestressing of concrete - Test methods - Part 3: Prestressing steel (ISO 15630-3:2019, Corrected version 2019-10)

This document specifies test methods applicable to prestressing steel (bar, wire or strand) for concrete.
This document does not cover the sampling conditions that are dealt with in the product standards.
A list of options for agreement between the parties involved is provided in Annex A.

Stahl für die Bewehrung und das Vorspannen von Beton - Prüfverfahren - Teil 3: Spannstahl (ISO 15630-3:2019, korrigierte Fassung 2019-10)

Dieses Dokument legt die für Spannstahl (Stab, Draht oder Litze) für Beton in Betracht kommenden Prüfmethoden fest.
Dieses Dokument ist nicht für die Probeentnahme anwendbar. Diese wird in den Erzeugnisnormen festgelegt.
Eine Liste mit den Optionen, die von den Parteien vereinbart werden dürfen, ist in Anhang A enthalten.

Aciers pour l'armature et la précontrainte du béton - Méthodes d'essai - Partie 3: Aciers de précontrainte (ISO 15630-3:2019, Version corrigée 2019-10)

Le présent document spécifie les méthodes d'essai applicables aux aciers de précontrainte (barres, fils ou torons) pour le béton.
Le présent document ne couvre pas les conditions d'échantillonnage qui sont spécifiées dans les normes de produit.
Une liste d'options en vue d'un accord entre les parties concernées figure à l'Annexe A.

Jeklo za armiranje in prednapenjanje betona - Metode preskušanja - 3. del: Jeklo za prednapenjanje (ISO 15630-3:2019, popravljena različica 2019-10)

V tem dokumentu so navedene preskusne metode, ki se uporabljajo za jekleno prednapenjanje (palica, žica ali pramen) za beton.
Ta dokument ne zajema pogojev vzorčenja, ki so obravnavani v standardih za izdelke.
Seznam možnosti za dogovor med vpletenimi stranmi je podan v dodatku A.

General Information

Status
Published
Public Enquiry End Date
17-Apr-2017
Publication Date
31-Mar-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
15-Mar-2019
Due Date
20-May-2019
Completion Date
01-Apr-2019

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SLOVENSKI STANDARD
SIST EN ISO 15630-3:2019
01-maj-2019
Nadomešča:
SIST EN ISO 15630-3:2011
Jeklo za armiranje in prednapenjanje betona - Metode preskušanja - 3. del: Jeklo
za prednapenjanje (ISO 15630-3:2019, popravljena različica 2019-10)

Steel for the reinforcement and prestressing of concrete - Test methods - Part 3:

Prestressing steel (ISO 15630-3:2019, Corrected version 2019-10)
Stahl für die Bewehrung und das Vorspannen von Beton - Prüfverfahren - Teil 3:
Spannstahl (ISO 15630-3:2019, korrigierte Fassung 2019-10)

Aciers pour l'armature et la précontrainte du béton - Méthodes d'essai - Partie 3: Aciers

de précontrainte (ISO 15630-3:2019, Version corrigée 2019-10)
Ta slovenski standard je istoveten z: EN ISO 15630-3:2019
ICS:
77.140.15 Jekla za armiranje betona Steels for reinforcement of
concrete
SIST EN ISO 15630-3:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 15630-3:2019
---------------------- Page: 2 ----------------------
SIST EN ISO 15630-3:2019
EN ISO 15630-3
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2019
EUROPÄISCHE NORM
ICS 77.140.15 Supersedes EN ISO 15630-3:2010
English Version
Steel for the reinforcement and prestressing of concrete -
Test methods - Part 3: Prestressing steel (ISO 15630-
3:2019, Corrected version 2019-10)

Aciers pour l'armature et la précontrainte du béton - Stähle für die Bewehrung und das Vorspannen von

Méthodes d'essai - Partie 3: Aciers de précontrainte Beton - Prüfverfahren - Teil 3: Spannstähle (ISO 15630-

(ISO 15630-3:2019, Version corrigée 2019-10) 3:2019, korrigierte Fassung 2019-10)

This European Standard was approved by CEN on 26 November 2018.

This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 30 October 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE N O R M A L I S A T IO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15630-3:2019 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 15630-3:2019
EN ISO 15630-3:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 15630-3:2019
EN ISO 15630-3:2019 (E)
European foreword

This document (EN ISO 15630-3:2019) has been prepared by Technical Committee ISO/TC 17 "Steel" in

collaboration with Technical Committee CEN/TC 459/SC 4 “Concrete reinforcing and prestressing

steels” the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by September 2019, and conflicting national standards

shall be withdrawn at the latest by September 2019.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 15630-3:2010.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
Endorsement notice

The text of ISO 15630-3:2019, Corrected version 2019-10 has been approved by CEN as EN ISO 15630-

3:2019 without any modification.
---------------------- Page: 5 ----------------------
SIST EN ISO 15630-3:2019
---------------------- Page: 6 ----------------------
SIST EN ISO 15630-3:2019
INTERNATIONAL ISO
STANDARD 15630-3
Third edition
2019-02
Corrected version
2019-10
Steel for the reinforcement and
prestressing of concrete — Test
methods —
Part 3:
Prestressing steel
Aciers pour l'armature et la précontrainte du béton — Méthodes
d'essai —
Partie 3: Aciers de précontrainte
Reference number
ISO 15630-3:2019(E)
ISO 2019
---------------------- Page: 7 ----------------------
SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

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 ......................................................................................................................................................................................... 4

5.3.1 General...................................................................................................................................................................................... 4

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 ................................................................................................................................................................10

9.4 Test procedure ......................................................................................................................................................................................10

9.4.1 Provisions concerning the test piece ...........................................................................................................10

9.4.2 Application of force ....................................................................................................................................................10

9.4.3 Initial force .........................................................................................................................................................................11

9.4.4 Force during the test .................. ......................................................................................................................... .......11

9.4.5 Maintenance of strain ...............................................................................................................................................11

9.4.6 Temperature .....................................................................................................................................................................12

9.4.7 Frequency of force recording .............................................................................................................................12

9.4.8 Frequency of strain recording ...........................................................................................................................12

9.4.9 Duration of the test .....................................................................................................................................................12

10 Axial force fatigue test .................................................................................................................................................................................12

10.1 Principle of test ....................................................................................................................................................................................12

10.2 Test piece ..................................................................................................................................................................................................13

10.3 Test equipment ....................................................................................................................................................................................13

10.4 Test procedure ......................................................................................................................................................................................13

10.4.1 Provisions concerning the test piece ...........................................................................................................13

© ISO 2019 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)

10.4.2 Stability of force and frequency .......................................................................................................................13

10.4.3 Counting of force cycles ..........................................................................................................................................14

10.4.4 Frequency ...........................................................................................................................................................................14

10.4.5 Temperature .....................................................................................................................................................................14

10.4.6 Validity of the test ........................................................................................................................................................14

11 Stress corrosion test in a solution of thiocyanate ...........................................................................................................14

11.1 Principle of test ....................................................................................................................................................................................14

11.2 Sample and test piece .....................................................................................................................................................................14

11.3 Test equipment ....................................................................................................................................................................................14

11.3.1 Frame ......................................................................................................................................................................................14

11.3.2 Force-measuring device .........................................................................................................................................14

11.3.3 Time-measuring device ..........................................................................................................................................15

11.3.4 Test cell containing the test solution ...........................................................................................................15

11.3.5 Test solution......................................................................................................................................................................15

11.4 Test procedure ......................................................................................................................................................................................16

11.4.1 Provisions concerning the test pieces ........................................................................................................16

11.4.2 Application and maintenance of force .......................................................................................................16

11.4.3 Filling of the test cell..................................................................................................................................................16

11.4.4 Temperature during the test ...............................................................................................................................16

11.4.5 Termination of the test ............................................................................................................................................16

11.4.6 Determination of median lifetime to fracture......................................................................................16

12 Deflected tensile test .....................................................................................................................................................................................17

12.1 Principle of test ....................................................................................................................................................................................17

12.2 Sample and test pieces ..................................................................................................................................................................17

12.3 Test equipment ....................................................................................................................................................................................17

12.3.1 General description ....................................................................................................................................................17

12.3.2 Dimensions ........................................................................................................................................................................17

12.3.3 Anchorages ........................................................................................................................................................................18

12.3.4 Mandrel .................................................................................................................................................................................18

12.3.5 Loading device ................................................................................................................................................................20

12.4 Test procedure ......................................................................................................................................................................................20

13 Chemical analysis ..............................................................................................................................................................................................20

14 Measurement of the geometrical characteristics ............................................................................................................20

14.1 Test piece ..................................................................................................................................................................................................20

14.2 Test equipment ....................................................................................................................................................................................21

14.3 Test procedures ...................................................................................................................................................................................21

14.3.1 Rib measurements ...................................................................... .................................................................................21

14.3.2 Indentation measurements .................................................................................................................................22

14.3.3 Lay length of strand (P)...........................................................................................................................................22

14.3.4 Straightness .......................................................................................................................................................................22

15 Determination of the relative rib area (f ) .............................................................................................................................23

15.1 General ........................................................................................................................................................................................................23

15.2 Calculation of f ..................................................................................................................................................................................23

15.2.1 Relative rib area .............................................................................................................................................................23

15.2.2 Simplified formulae ....................................................................................................................................................23

15.2.3 Formula used for the calculation of f .......................................................................................................25

16 Determination of deviation from nominal mass per metre .................................................................................25

16.1 Test piece ..................................................................................................................................................................................................25

16.2 Accuracy of measurement ..........................................................................................................................................................25

16.3 Test procedure ......................................................................................................................................................................................26

17 Test report ................................................................................................................................................................................................................26

Annex A (informative) Options for agreement between the parties involved ........................................................27

Bibliography .............................................................................................................................................................................................................................28

iv © ISO 2019 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO’s adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso

.org/iso/foreword .html.

This document was prepared by ISO/TC 17, Steel, Subcommittee SC 16, Steels for the reinforcement and

prestressing of concrete.

This third edition cancels and replaces the second edition (ISO 15630-3:2010), which has been

technically revised. Changes have been introduced in the Introduction, Clauses 1 and 2, 5.3.1, 5.3.2, 9.3,

9.4.4, 10.4.3, 11.4 (now 10.3, 10.4.4, 11.4.3, 12.4) and Figure 8. The Bibliography has been updated and

the dated references have been replaced by undated references. A new Clause 8 on the wrapping test

has been added.
A list of all parts in the ISO 15360 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/members .html.

This corrected version of ISO 15630-3:2019 incorporates the following corrections:

— in Figure 8, 60° ± 12° has been corrected to 60° ± 12′.
© ISO 2019 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)
Introduction

The aim of ISO 15630 (all parts) is to provide all relevant test methods for reinforcing and prestressing

steels in one standard series.

This document covers standard test methods, as well as specialized test methods that are not

common
...

SLOVENSKI STANDARD
SIST EN ISO 15630-3:2019
01-maj-2019
1DGRPHãþD
SIST EN ISO 15630-3:2011
Jeklo za armiranje in prednapenjanje betona - Metode preskušanja - 3. del: Jeklo
za prednapenjanje (ISO 15630-3:2019)

Steel for the reinforcement and prestressing of concrete - Test methods - Part 3:

Prestressing steel (ISO 15630-3:2019)
Stähle für die Bewehrung und das Vorspannen von Beton - Prüfverfahren - Teil 3:
Spannstähle (ISO 15630-3:2019)

Aciers pour l'armature et la précontrainte du béton - Méthodes d'essai - Partie 3: Aciers

de précontrainte (ISO 15630-3:2019)
Ta slovenski standard je istoveten z: EN ISO 15630-3:2019
ICS:
77.140.15 Jekla za armiranje betona Steels for reinforcement of
concrete
SIST EN ISO 15630-3:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 15630-3:2019
---------------------- Page: 2 ----------------------
SIST EN ISO 15630-3:2019
EN ISO 15630-3
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2019
EUROPÄISCHE NORM
ICS 77.140.15 Supersedes EN ISO 15630-3:2010
English Version
Steel for the reinforcement and prestressing of concrete -
Test methods - Part 3: Prestressing steel (ISO 15630-
3:2019)

Aciers pour l'armature et la précontrainte du béton - Stähle für die Bewehrung und das Vorspannen von

Méthodes d'essai - Partie 3: Aciers de précontrainte Beton - Prüfverfahren - Teil 3: Spannstähle (ISO 15630-

(ISO 15630-3:2019) 3:2019)
This European Standard was approved by CEN on 26 November 2018.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15630-3:2019 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 15630-3:2019
EN ISO 15630-3:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 15630-3:2019
EN ISO 15630-3:2019 (E)
European foreword

This document (EN ISO 15630-3:2019) has been prepared by Technical Committee ISO/TC 17 "Steel" in

collaboration with Technical Committee CEN/TC 459/SC 4 “Concrete reinforcing and prestressing

steels” the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by September 2019, and conflicting national standards

shall be withdrawn at the latest by September 2019.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 15630-3:2010.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
Endorsement notice

The text of ISO 15630-3:2019 has been approved by CEN as EN ISO 15630-3:2019 without any

modification.
---------------------- Page: 5 ----------------------
SIST EN ISO 15630-3:2019
---------------------- Page: 6 ----------------------
SIST EN ISO 15630-3:2019
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 l'armature et la précontrainte du béton — Méthodes
d'essai —
Partie 3: Aciers de précontrainte
Reference number
ISO 15630-3:2019(E)
ISO 2019
---------------------- Page: 7 ----------------------
SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

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 ......................................................................................................................................................................................... 4

5.3.1 General...................................................................................................................................................................................... 4

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 ................................................................................................................................................................10

9.4 Test procedure ......................................................................................................................................................................................10

9.4.1 Provisions concerning the test piece ...........................................................................................................10

9.4.2 Application of force ....................................................................................................................................................10

9.4.3 Initial force .........................................................................................................................................................................11

9.4.4 Force during the test .................. ......................................................................................................................... .......11

9.4.5 Maintenance of strain ...............................................................................................................................................11

9.4.6 Temperature .....................................................................................................................................................................12

9.4.7 Frequency of force recording .............................................................................................................................12

9.4.8 Frequency of strain recording ...........................................................................................................................12

9.4.9 Duration of the test .....................................................................................................................................................12

10 Axial force fatigue test .................................................................................................................................................................................12

10.1 Principle of test ....................................................................................................................................................................................12

10.2 Test piece ..................................................................................................................................................................................................13

10.3 Test equipment ....................................................................................................................................................................................13

10.4 Test procedure ......................................................................................................................................................................................13

10.4.1 Provisions concerning the test piece ...........................................................................................................13

© ISO 2019 – All rights reserved iii
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SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)

10.4.2 Stability of force and frequency .......................................................................................................................13

10.4.3 Counting of force cycles ..........................................................................................................................................14

10.4.4 Frequency ...........................................................................................................................................................................14

10.4.5 Temperature .....................................................................................................................................................................14

10.4.6 Validity of the test ........................................................................................................................................................14

11 Stress corrosion test in a solution of thiocyanate ...........................................................................................................14

11.1 Principle of test ....................................................................................................................................................................................14

11.2 Sample and test piece .....................................................................................................................................................................14

11.3 Test equipment ....................................................................................................................................................................................14

11.3.1 Frame ......................................................................................................................................................................................14

11.3.2 Force-measuring device .........................................................................................................................................14

11.3.3 Time-measuring device ..........................................................................................................................................15

11.3.4 Test cell containing the test solution ...........................................................................................................15

11.3.5 Test solution......................................................................................................................................................................15

11.4 Test procedure ......................................................................................................................................................................................16

11.4.1 Provisions concerning the test pieces ........................................................................................................16

11.4.2 Application and maintenance of force .......................................................................................................16

11.4.3 Filling of the test cell..................................................................................................................................................16

11.4.4 Temperature during the test ...............................................................................................................................16

11.4.5 Termination of the test ............................................................................................................................................16

11.4.6 Determination of median lifetime to fracture......................................................................................16

12 Deflected tensile test .....................................................................................................................................................................................17

12.1 Principle of test ....................................................................................................................................................................................17

12.2 Sample and test pieces ..................................................................................................................................................................17

12.3 Test equipment ....................................................................................................................................................................................17

12.3.1 General description ....................................................................................................................................................17

12.3.2 Dimensions ........................................................................................................................................................................17

12.3.3 Anchorages ........................................................................................................................................................................18

12.3.4 Mandrel .................................................................................................................................................................................18

12.3.5 Loading device ................................................................................................................................................................20

12.4 Test procedure ......................................................................................................................................................................................20

13 Chemical analysis ..............................................................................................................................................................................................20

14 Measurement of the geometrical characteristics ............................................................................................................20

14.1 Test piece ..................................................................................................................................................................................................20

14.2 Test equipment ....................................................................................................................................................................................21

14.3 Test procedures ...................................................................................................................................................................................21

14.3.1 Rib measurements ...................................................................... .................................................................................21

14.3.2 Indentation measurements .................................................................................................................................22

14.3.3 Lay length of strand (P)...........................................................................................................................................22

14.3.4 Straightness .......................................................................................................................................................................22

15 Determination of the relative rib area (f ) .............................................................................................................................23

15.1 General ........................................................................................................................................................................................................23

15.2 Calculation of f ........................................................................................................................................... .......................................23

15.2.1 Relative rib area .............................................................................................................................................................23

15.2.2 Simplified formulae ....................................................................................................................................................23

15.2.3 Formula used for the calculation of f .................. .....................................................................................25

16 Determination of deviation from nominal mass per metre .................................................................................25

16.1 Test piece ..................................................................................................................................................................................................25

16.2 Accuracy of measurement ..........................................................................................................................................................25

16.3 Test procedure ......................................................................................................................................................................................25

17 Test report ................................................................................................................................................................................................................25

Annex A (informative) Options for agreement between the parties involved ........................................................26

Bibliography .............................................................................................................................................................................................................................27

iv © ISO 2019 – All rights reserved
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SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO’s adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso

.org/iso/foreword .html.

This document was prepared by ISO/TC 17, Steel, Subcommittee SC 16, Steels for the reinforcement and

prestressing of concrete.

This third edition cancels and replaces the second edition (ISO 15630-3:2010), which has been

technically revised. Changes have been introduced in the Introduction, Clauses 1 and 2, 5.3.1, 5.3.2, 9.3,

9.4.4, 10.4.3, 11.4 (now 10.3, 10.4.4, 11.4.3, 12.4) and Figure 8. The Bibliography has been updated and

the dated references have been replaced by undated references. A new Clause 8 on the wrapping test

has been added.
A list of all parts in the ISO 15360 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/members .html.
© ISO 2019 – All rights reserved v
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SIST EN ISO 15630-3:2019
ISO 15630-3:2019(E)
Introduction

The aim of ISO 15630 (all parts) is to provide all relevant test methods for reinforcing and prestressing

steels in one standard series.

This document covers standard test methods, as well as specialized test methods that are not

commonly used in routine testing and that should only be considered where relevant (or specified) in

the applicable product standard.

Reference is made to International Standards on the testing of metals, in general, as they are applicable.

Complementary provisions have been given if needed.
vi © ISO 2019 – All rights reserved
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SIST EN ISO 15630-3:2019
INTERNATIONAL STANDARD ISO 15630-3:2019(E)
Steel for the reinforcement and pre
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