Test methods for repair materials for water-leakage cracks in underground concrete structures — Part 4: Test method for adhesion on wet concrete surface

ISO/TS 16774:2016 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 ISO/TS 16774-4:2016 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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Status
Published
Publication Date
21-Jul-2016
Current Stage
9092 - International Standard to be revised
Start Date
20-Apr-2020
Completion Date
20-Apr-2020
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TECHNICAL ISO/TS
SPECIFICATION 16774-4
First edition
2016-08-01
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 16774-4:2016(E)
ISO 2016
---------------------- Page: 1 ----------------------
ISO/TS 16774-4:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 16774-4:2016(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 ................................................................................................................................................................................................................... 3

9.1 Information on the repair material of the test target ............................................................................................ 3

9.1.1 General...................................................................................................................................................................................... 3

9.1.2 Other information ........................................................................................................................................................... 4

9.2 Information on the test .................................................................................................................................................................... 4

Annex A (informative) Example test method ............................................................................................................................................... 5

Bibliography .............................................................................................................................................................................................................................12

© ISO 2016 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/TS 16774-4:2016(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 on 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.

The committee responsible for this document is ISO/TC 71, Concrete, reinforced concrete and pre-

stressed concrete, Subcommittee SC 7, Maintenance and repair of concrete structures

ISO/TS 16774 consists of the following parts, under the general title Test methods for repair materials

for water-leakage cracks in underground concrete structures:
— 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
The following parts are under preparation:
— Part 1: Test method for thermal stability
— Part 5: Test method for watertightness
— Part 6: Test method for response to the substrate movement
iv © ISO 2016 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/TS 16774-4:2016(E)
Introduction

This Technical Specification is linked to ISO/TR 16475. ISO/TR 16475 outlines 6 basic properties and

the required performance levels of water-leakage repair materials, and ISO/TS 16774 proposes a

tentative, sample test methods that are capable of evaluating the respective properties of the repair

materials.

The test methods in this Technical Specification are intended to serve as references for nations that have

not yet developed a test method on the 6 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 Specification are subject to change in accordance to

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.
© ISO 2016 – All rights reserved v
---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/TS 16774-4:2016(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 part of ISO/TS 16774 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 16774 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, in whole or in part, are normatively referenced in 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, Guidelines 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.
3.1
repair material for water-leakage cracks
grouting materials used for prevent water-leakage at crack in concrete

Note 1 to entry: In this Technical Specification, target ingredients are limited to injection materials outlined in

ISO/TR 16475.
Note 2 to entry: [SOURCE: ISO/TS 16774-2:—, 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.

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.
© ISO 2016 – All rights reserved 1
---------------------- Page: 6 ----------------------
ISO/TS 16774-4:2016(E)
5 Apparatus
5.1 Adhesion tester.

Adhesion tester should have 3 main parts: frame, clamp, and mobile support plate/mechanism.

5.2.1 Frame, used for levelling the specimen horizontally that can be set immobile during the progress

of the test.

5.2.2 Clamp, can anchor the test specimen securely and hold it suspended in mid-air during the test.

5.2.3 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 subject to vary

according to the different national standards applied to this test method).

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 different nationa
...

TECHNICAL ISO/TS
SPECIFICATION 16774-4
First edition
2016-04-04
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
PROOF/ÉPREUVE
Reference number
ISO/TS 16774-4:2016(E)
ISO 2016
---------------------- Page: 1 ----------------------
ISO/TS 16774-4:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 16774-4:2016(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 ................................................................................................................................................................................................................... 3

9.1 Information on the repair material of the test target ............................................................................................ 3

9.1.1 General...................................................................................................................................................................................... 3

9.1.2 Other information ........................................................................................................................................................... 4

9.2 Information on the test .................................................................................................................................................................... 4

Annex A (informative) Example test method ............................................................................................................................................... 5

Bibliography .............................................................................................................................................................................................................................13

© ISO 2016 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO/TS 16774-4:2016(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 on 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.

The committee responsible for this document is ISO/TC 71, Concrete, reinforced concrete and pre-

stressed concrete, Subcommittee SC 7, Maintenance and repair of concrete structures

ISO/TS 16774 consists of the following parts, under the general title Test methods for repair materials

for water-leakage cracks in underground concrete structures:
— 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
The following parts are under preparation:
— Part 1: Test method for thermal stability
— Part 5: Test method for watertightness
— Part 6: Test method for response to the substrate movement
iv PROOF/ÉPREUVE © ISO 2016 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/TS 16774-4:2016(E)
Introduction

This Technical Specification is linked to ISO/TR 16475. ISO/TR 16475 outlines 6 basic properties and

the required performance levels of water-leakage repair materials, and ISO/TS 16774 proposes a

tentative, sample test methods that are capable of evaluating the respective properties of the repair

materials.

The test methods in this Technical Specification are intended to serve as references for nations that have

not yet developed a test method on the 6 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 Specification are subject to change in accordance to

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.
© ISO 2016 – All rights reserved PROOF/ÉPREUVE v
---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/TS 16774-4:2016(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 part of ISO/TS 16774 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 16774 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, in whole or in part, are normatively referenced in 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, Guidelines 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.
3.1
repair material for water-leakage cracks
grouting materials used for prevent water-leakage at crack in concrete

Note 1 to entry: In this Technical Specification, target ingredients are limited to injection materials outlined in

ISO/TR 16475.
Note 2 to entry: [SOURCE: ISO/TS 16774-2:—, 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.

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.
© ISO 2016 – All rights reserved PROOF/ÉPREUVE 1
---------------------- Page: 6 ----------------------
ISO/TS 16774-4:2016(E)
5 Apparatus
5.1 Adhesion tester.

Adhesion tester should have 3 main parts: frame, clamp, and mobile support plate/mechanism.

5.2.1 Frame, used for levelling the specimen horizontally that can be set immobile during the progress

of the test.

5.2.2 Clamp, can anchor the test specimen securely and hold it suspended in mid-air during the test.

5.2.3 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 subject to vary

according to the different national standards applied to this test method).

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 different national standards. If manufacturer’s instructions are

available, employment of such method is recommended.
...

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