ISO/TS 16774-4:2023
(Main)Test methods for repair materials for water-leakage cracks in underground concrete structures — Part 4: Test method for adhesion on wet concrete surface
Test methods for repair materials for water-leakage cracks in underground concrete structures — Part 4: Test method for adhesion on wet concrete surface
This document specifies a laboratory test method for indirectly measuring the adhesion performance of repair material to wet concrete crack surfaces by qualitatively, as a pass/fail at predetermined time, against predetermined amount of weight exerted on the repair material adhesion. NOTE This document classifies and categorizes materials that are tested into families of similar properties for the purpose of making relative comparisons with the data results.
Méthodes d'essai pour matériaux de réparation pour fissures dues à l'eau dans les structures en béton souterraines — Partie 4: Méthode d'essai de l'adhésion sur un substrat humide
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TECHNICAL ISO/TS
SPECIFICATION 16774-4
Second edition
2023-04
Test methods for repair materials for
water-leakage cracks in underground
concrete structures —
Part 4:
Test method for adhesion on wet
concrete surface
Méthodes d'essai pour matériaux de réparation pour fissures dues à
l'eau dans les structures en béton souterraines —
Partie 4: Méthode d'essai de l'adhésion sur un substrat humide
Reference number
ISO/TS 16774-4:2023(E)
© ISO 2023
---------------------- Page: 1 ----------------------
ISO/TS 16774-4:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
© ISO 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 16774-4:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Preparation . 2
6.1 Test specimen assembly as artificial water-leakage crack . 2
6.2 Ambient conditions. 3
7 Procedure .3
8 Expression of results . 3
9 Test report . 4
9.1 Information on the repair material of the test target . 4
9.1.1 General . 4
9.1.2 Other information . 4
9.2 Information on the test . 4
Annex A (informative) Example test method . 5
Bibliography .12
iii
© ISO 2023 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/TS 16774-4:2023(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 Technical Committee ISO/TC 71, Concrete, reinforced concrete and pre-
stressed concrete, Subcommittee SC 7, Maintenance and repair of concrete structures.
This second edition cancels and replaces the first edition (ISO/TS 16774-4:2016) which has been
technically revised.
The main changes are as follows:
— ambient conditions in 6.2 and A.3.3 have been modified;
— some clarifications have been made in 9.2;
— some editorial corrections have been made.
A list of all parts in the ISO 16774 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.
iv
© ISO 2023 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/TS 16774-4:2023(E)
Introduction
This document is linked to ISO/TR 16475. ISO/TR 16475 outlines six basic properties and the required
performance levels of water leakage repair materials, and the ISO/TS 16774 series proposes sample
testing methods that are capable of evaluating the respective properties of the repair materials.
The test methods in this document are intended to serve as references for nations that have not yet
developed a test method on the six proposed required performance properties of water leakage
repair materials. If other forms of test methods that are simpler, more accurate or more organized
are available, such methods are recommended for use instead. Many of the dependent variables
outlined in the reference test methods of this document are subject to change in accordance with the
environmental conditions (temperature and humidity, chemical solution and concentration, width
of movement activity, water pressure or water flow velocity, etc.) outlined in the standards used in
respective countries.
For ISO/TS 16774-1, ISO/TS 16774-5 and ISO/TS 16774-6, for the purpose of objectively comparing the
performance of injected repair materials, artificial cracks of same width, height, and volume were used
to control the usage of repair materials for each testing cycle and enable repetition of the same test
methods under the same conditions.
v
© ISO 2023 – All rights reserved
---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/TS 16774-4:2023(E)
Test methods for repair materials for water-leakage cracks
in underground concrete structures —
Part 4:
Test method for adhesion on wet concrete surface
1 Scope
This document specifies a laboratory test method for indirectly measuring the adhesion performance
of repair material to wet concrete crack surfaces by qualitatively, as a pass/fail at predetermined time,
against predetermined amount of weight exerted on the repair material adhesion.
NOTE This document classifies and categorizes materials that are tested into families of similar properties
for the purpose of making relative comparisons with the data results.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/TR 16475, General practices for the repair of water-leakage cracks in concrete structures
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TR 16475 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
water leakage repair material
grouting materials used to prevent water leakages in concrete cracks
Note 1 to entry: In this document, target ingredients are limited to injection materials outlined in ISO/TR 16475.
[SOURCE: ISO/TS 16774-2:2023, 3.1]
4 Principle
A repair material’s ability to adhere to a wet leakage crack surface is one of the fundamental properties
that water leakage repair materials should possess. Focus areas of repair material application are most
often on concrete surfaces that are constantly wet and humid. During and after application, repair
materials should be able to remain firm adhesion to concrete surface and should not fall off. This test
method proposes that observing whether repair materials can retain adhesion on wet concrete surface
against a constantly exerted weight can determine a repair material’s adhesion performance on wet
concrete surface. An example test method is provided in Annex A.
1
© ISO 2023 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/TS 16774-4:2023(E)
Repair materials are injected in an artificially produced wet crack space formed by two separate
concrete (or mortar) specimens, a top part that serves as an anchor, and another that serves as any
constant weight that pulls on the material adhesion surface. The concrete specimen is then lifted and
held in mid-air by the clamp (anchor) of adhesion tester to see if the material can maintain adhesion
past the failure margin time against the weight of the bottom concrete specimen.
5 Apparatus
5.1 Adhesion tester.
Adhesion tester should have three main parts: frame, clamp and mobile support plate/mechanism.
5.1.1 Frame, used for levelling the specimen horizontally that can be set immobile during the
progress of the test.
5.1.2 Clamp, can anchor the test specimen securely and hold it suspended in mid-air during the test.
5.1.3 Mobile support plate/mechanism, used to initially secure the specimen prior to the testing.
Once the testing starts, it shall be removable (left, right, top, down, in any direction) to allow the
specimen to stay mid-air.
Any apparatus can be used, but it should allow the bottom concrete specimen that serves as the weight
to pull against the material adhesion the wet surface during the testing.
5.2 Others.
5.2.1 Stop watch, used for testing the duration of adhesion of the material.
5.2.2 Injector, testing material injecting apparatus.
5.2.3 Water container.
6 Preparation
6.1 Test specimen assembly as artificial water-leakage crack
a) A water-leakage crack test specimen is prepared using two separate concrete or mortar parts
(upper and bottom part) placed horizontally parallel to one another. One part (upper) is placed over
the other (bottom) with spacers in between, forming the test specimen with an artificial crack.
NOTE The space height between the two concrete parts represents the width of the concrete crack. The
height can vary according to different national standards.
b) The crack space along the side is covered with silicon sealants, tape or other applicable materials
along the exterior side of the artificial crack space to prevent leakage during injection.
Any supplementary material can be used to hold the two parts together with a crack space in
between, but should leave an inlet for material injection.
c) The assembled specimen is placed underwater for a predetermined period (time variable can be
subject to change according to the different national standards that are applied to this test method).
2
© ISO 2023 – All rights reserved
---------------------- Page: 7 ----------------------
ISO/TS 16774-4:2023(E)
d) After taking the specimen out of the water, the repair material is injected into the space while the
surface is still wet.
Injection method varies according to differe
...
TECHNICAL SPECIFICATION
ISO DTS/TS 16774-4 Ed.2 :2023(E)
2022-122023-01-09
ISO/ TC 71/SC 7
Secretariat: KATS
Test methods for repair materials for water-leakage cracks in underground concrete structures —
Part 4: Test method for adhesion on wet concrete surface
Part 4: Test method for adhesion on wet concrete surface
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORT- ING DOCUMENTATION IN
ADDITION TO THEIR EVALUATION AS BEING
ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE
IN NATIONAL REGULATIONS.
---------------------- Page: 1 ----------------------
ISO/TS 16774-4:2016(E)
© ISO 2023
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-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland.
© ISO 2016
---------------------- Page: 2 ----------------------
ISO DTS/TS 16774-4:2022(E)
Contents Page
Foreword. v
1 Scope . 1
2 Normative references . 1
3 Terms and Definitions . 1
4 Principle . 1
5 Apparatus . 2
5.1 Adhesion tester.
2
5.2 Test specimen.
2
5.3 Others .
2
6 Preparation . 3
6.1 Assemble of Test specimen.
3
6.2 Ambient Conditions .
3
7 Procedure . . 3
7.1 Injection of repair material .
3
7.2 Assemble of Test specimen.
3
8 Expression of results . 3
9 Test report. 3
9.1 Information on the repair material of the test target.
3
9.1.1
General……………. 3
9.1.2 Other
information. 3
9.2 Information on the test…. .
4
Bibliography . 4
iii
---------------------- Page: 3 ----------------------
ISO/TS 16774-4:2016(E)
Annex . 5
© ISO 2016
---------------------- Page: 4 ----------------------
ISO DTS/TS 16774-4:2022(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
Field Code Changed
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/patentswww.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 onof 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 the following URL:
www.iso.org/iso/foreword.html. Field Code Changed
The committee responsible for thisThis document iswas prepared by Technical Committee ISO/TC 71,
Concrete, reinforced concrete and pre-stressed concrete, Subcommittee SC 7, Maintenance and repair of
concrete structures.
This second edition cancels and replaces the first edition (ISO/TS 16774 consists-4:2016) which has been
technically revised.
The main changes are as follows:
— ambient conditions in 6.2 and A.3.3 have been modified;
— some clarifications have been made in 9.2;
— some editorial corrections have been made.
A list of the followingall parts, under in the general title Test methods for repair materials for water-
leakage cracks in underground concrete structures:ISO 16774 series can be found on the ISO website.
— Part 1: Test method for thermal stability
— Part 2: Test method for chemical resistance
— Part 3: Test method for water (wash out) resistance
— Part 4: Test method for adhesion on wet concrete surface
v
---------------------- Page: 5 ----------------------
ISO/TS 16774-4:2016(E)
— Part 5: Test method for watertightness
— Part 6: Test method for response to the substrate movement
© ISO 2016
---------------------- Page: 6 ----------------------
ISO/DTS 16774-4:2023(E)
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 2023 – All rights reserved vii
---------------------- Page: 7 ----------------------
ISO/DTS 16774-4:2023(E)
Introduction
This Technical Specificationdocument is linked to ISO/TR 16475. ISO/TR 16475 outlines 6six basic
properties and the required performance levels of water- leakage repair materials, and the
ISO/TS 16774 series proposes sample testtesting methods that are capable of evaluating the
respective properties of the repair materials.
The test methods in this Technical Specificationdocument are intended to serve as references for
nations that have not yet developed a test method on the 6six proposed required performance
properties of water- leakage repair materials. If other forms of test methods that are simpler, more
accurate or more organized are available, such methods are recommended for use instead. Many of the
dependent variables outlined in the reference test methods of this Technical Specificationdocument
are subject to change in accordance with the environmental conditions (temperature and humidity,
chemical solution and concentration, width of movement activity, water pressure or water flow
velocity, etc.) outlined in the standards used in respective countries.
For ISO/TS 16774-1, ISO/TS 16774-5 and ISO/TS 16774-6, for the purpose of objectively comparing
the performance of injected repair materials, artificial cracks of same width, height, and volume were
used to control the usage of repair materials for each testing cycle and enable repetition of the same
test methods under the same conditions.
viii © ISO 2023 – All rights reserved
---------------------- Page: 8 ----------------------
TECHNICAL SPECIFICATION ISO/DTS 16774-4:2023(E)
Test methods for repair materials for water-leakage crackcracks in underground concrete
structures — Part 4: Test method for adhesion on wet concrete surface
1 Scope
This part of ISO/TS 16774document specifies a laboratory test method for indirectly measuring the
adhesion performance of repair material to wet concrete crack surfaces by qualitatively, as a pass/fail
at predetermined time, against predetermined amount of weight exerted on the repair material
adhesion.
NOTE This part of ISO/TS 16774document classifies and categorizes materials that are tested into families of
similar properties for the purpose of making relative comparisons with the data results.
2 Normative references
The following documents, are referred to in wholethe text in such a way that some or in part, are
normatively referenced inall of their content constitutes requirements of this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO/TR 16475, GuidelinesGeneral practices for the repair of water-leakage cracks in concrete structures
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TR 16475 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
water leakage repair material for water-leakage cracks
grouting materials used forto prevent water-leakage at crack leakages in concrete cracks
Note 1 to entry: In this Technical Specificationdocument, target ingredients are limited to injection materials
outlined in ISO/TR 16475.
1
[SOURCE: ISO/TS 16774-2:—,:20— , 3.1]
1
Under preparation.
© ISO 2023 – All rights reserved 1
---------------------- Page: 9 ----------------------
ISO/DTS 16774-4:2023(E)
4 Principle
A repair material’s ability to adhere to a wet leakage crack surface is one of the fundamental
properties that water- leakage repair materials should possess. Focus areas of repair material
application are most often on concrete surfaces that are constantly wet and humid. During and after
application, repair materials should be able to remain firm adhesion to concrete surface and should
not fall off. This test method proposes that observing whether repair materials can retain adhesion on
wet concrete surface against a constantly exerted weight can determine a repair material’s adhesion
performance on wet concrete surface. An example test method is provided in Annex A.
Repair materials are injected in an artificially produced wet crack space formed by two separate
concrete (or mortar) specimens, a top part that serves as an anchor, and another that serves as the any
constant weight that pulls on the material adhesion surface. The concrete specimen is then lifted and
held in mid-air by the clamp (anchor) of adhesion tester to see if the material can maintain adhesion
past the failure margin time against the weight of the bottom concrete specimen.
5 Apparatus
5.1 Adhesion tester.
Adhesion tester should have 3three main parts: frame, clamp, and mobile support plate/mechanism.
5.1.1 Frame, used for levelling the specimen horizontally that can be set immobile during the
progress of the test.
5.1.2 Clamp, can anchor the test specimen securely and hold it suspended in mid-air during the test.
5.1.3 Mobile support plate/mechanism, used to initially secure the specimen prior to the testing.
Once the testing starts, it shall be removable (left, right, top, down, in any direction) to allow the
specimen to stay mid-air.
Any apparatus can be used, but it should allow the bottom concrete specimen that serves as the weight
to pull against the material adhesion the wet surface during the testing.
5.2 Others.
5.2.1 Stop watch, used for testing the duration of adhesion of the material.
5.2.2 Injector, testing material injecting apparatus.
5.2.3 Water container.
6 Preparation
6.1 Test specimen assembly as artificial water-leakage crack
a) A water-leakage crack test specimen is prepared using two separate concrete or mortar parts
(upper and bottom part) placed horizontally parallel to one another. One part (upper) is placed
over the other (bottom) with spacers in between, forming the test specimen with an artificial
crack.
NOTE The space height between the two concrete parts represents the width of the concrete crack. The
height can vary according to different national standards.
2 © ISO 2023 – All rights reserved
---------------------- Page: 10 ----------------------
ISO/DTS 16774-4:2023(E)
b) The crack space along the side is covered with silicon sealants, tape or other applicable materials
along the exterior side of the artificial crack space to prevent leakage during injection.
Any supplementary material can be used to hold the two parts tog
...
FINAL
TECHNICAL ISO/DTS
DRAFT
SPECIFICATION 16774-4
ISO/TC 71/SC 7
Test methods for repair materials for
Secretariat: KATS
water-leakage cracks in underground
Voting begins on:
2023-01-23 concrete structures —
Voting terminates on:
Part 4:
2023-03-20
Test method for adhesion on wet
concrete surface
Méthodes d'essai pour matériaux de réparation pour fissures dues à
l'eau dans les structures en béton souterraines —
Partie 4: Méthode d'essai de l'adhésion sur un substrat humide
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTS 16774-4:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 1 ----------------------
ISO/DTS 16774-4:2023(E)
FINAL
TECHNICAL ISO/DTS
DRAFT
SPECIFICATION 16774-4
ISO/TC 71/SC 7
Test methods for repair materials for
Secretariat: KATS
water-leakage cracks in underground
Voting begins on:
concrete structures —
Voting terminates on:
Part 4:
Test method for adhesion on wet
concrete surface
Méthodes d'essai pour matériaux de réparation pour fissures dues à
l'eau dans les structures en béton souterraines —
Partie 4: Méthode d'essai de l'adhésion sur un substrat humide
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTS 16774-4:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
© ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 2 ----------------------
ISO/DTS 16774-4:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Preparation . 2
6.1 Test specimen assembly as artificial water-leakage crack . 2
6.2 Ambient conditions. 3
7 Procedure .3
8 Expression of results . 3
9 Test report . 4
9.1 Information on the repair material of the test target . 4
9.1.1 General . 4
9.1.2 Other information . 4
9.2 Information on the test . 4
Annex A (informative) Example test method . 5
Bibliography .12
iii
© ISO 2023 – All rights reserved
---------------------- Page: 3 ----------------------
ISO/DTS 16774-4:2023(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 Technical Committee ISO/TC 71, Concrete, reinforced concrete and pre-
stressed concrete, Subcommittee SC 7, Maintenance and repair of concrete structures.
This second edition cancels and replaces the first edition (ISO/TS 16774-4:2016) which has been
technically revised.
The main changes are as follows:
— ambient conditions in 6.2 and A.3.3 have been modified;
— some clarifications have been made in 9.2;
— some editorial corrections have been made.
A list of all parts in the ISO 16774 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.
iv
© ISO 2023 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/DTS 16774-4:2023(E)
Introduction
This document is linked to ISO/TR 16475. ISO/TR 16475 outlines six basic properties and the required
performance levels of water leakage repair materials, and the ISO/TS 16774 series proposes sample
testing methods that are capable of evaluating the respective properties of the repair materials.
The test methods in this document are intended to serve as references for nations that have not yet
developed a test method on the six proposed required performance properties of water leakage
repair materials. If other forms of test methods that are simpler, more accurate or more organized
are available, such methods are recommended for use instead. Many of the dependent variables
outlined in the reference test methods of this document are subject to change in accordance with the
environmental conditions (temperature and humidity, chemical solution and concentration, width
of movement activity, water pressure or water flow velocity, etc.) outlined in the standards used in
respective countries.
For ISO/TS 16774-1, ISO/TS 16774-5 and ISO/TS 16774-6, for the purpose of objectively comparing the
performance of injected repair materials, artificial cracks of same width, height, and volume were used
to control the usage of repair materials for each testing cycle and enable repetition of the same test
methods under the same conditions.
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TECHNICAL SPECIFICATION ISO/DTS 16774-4:2023(E)
Test methods for repair materials for water-leakage cracks
in underground concrete structures —
Part 4:
Test method for adhesion on wet concrete surface
1 Scope
This document specifies a laboratory test method for indirectly measuring the adhesion performance
of repair material to wet concrete crack surfaces by qualitatively, as a pass/fail at predetermined time,
against predetermined amount of weight exerted on the repair material adhesion.
NOTE This document classifies and categorizes materials that are tested into families of similar properties
for the purpose of making relative comparisons with the data results.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/TR 16475, General practices for the repair of water-leakage cracks in concrete structures
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TR 16475 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
water leakage repair material
grouting materials used to prevent water leakages in concrete cracks
Note 1 to entry: In this document, target ingredients are limited to injection materials outlined in ISO/TR 16475.
1)
[SOURCE: ISO/TS 16774-2:20— , 3.1]
4 Principle
A repair material’s ability to adhere to a wet leakage crack surface is one of the fundamental properties
that water leakage repair materials should possess. Focus areas of repair material application are most
often on concrete surfaces that are constantly wet and humid. During and after application, repair
materials should be able to remain firm adhesion to concrete surface and should not fall off. This test
method proposes that observing whether repair materials can retain adhesion on wet concrete surface
against a constantly exerted weight can determine a repair material’s adhesion performance on wet
concrete surface. An example test method is provided in Annex A.
1) Under preparation.
1
© ISO 2023 – All rights reserved
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ISO/DTS 16774-4:2023(E)
Repair materials are injected in an artificially produced wet crack space formed by two separate
concrete (or mortar) specimens, a top part that serves as an anchor, and another that serves as any
constant weight that pulls on the material adhesion surface. The concrete specimen is then lifted and
held in mid-air by the clamp (anchor) of adhesion tester to see if the material can maintain adhesion
past the failure margin time against the weight of the bottom concrete specimen.
5 Apparatus
5.1 Adhesion tester.
Adhesion tester should have three main parts: frame, clamp and mobile support plate/mechanism.
5.1.1 Frame, used for levelling the specimen horizontally that can be set immobile during the
progress of the test.
5.1.2 Clamp, can anchor the test specimen securely and hold it suspended in mid-air during the test.
5.1.3 Mobile support plate/mechanism, used to initially secure the specimen prior to the testing.
Once the testing starts, it shall be removable (left, right, top, down, in any direction) to allow the
specimen to stay mid-air.
Any apparatus can be used, but it should allow the bottom concrete specimen that serves as the weight
to pull against the material adhesion the wet surface during the testing.
5.2 Others.
5.2.1 Stop watch, used for testing the duration of adhesion of the material.
5.2.2 Injector, testing material injecting apparatus.
5.2.3 Water container.
6 Preparation
6.1 Test specimen assembly as artificial water-leakage crack
a) A water-leakage crack test specimen is prepared using two separate concrete or mortar parts
(upper and bottom part) placed horizontally parallel to one another. One part (upper) is placed over
the other (bottom) with spacers in between, forming the test specimen with an artificial crack.
NOTE The space height between the two concrete parts represents the width of the concrete crack. The
height can vary according to different national standards.
b) The crack space along the side is covered with
...
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