Ceramic tiles — Grouts and adhesives — Part 4: Test methods for grouts

ISO 13007-4:2013 describes methods for determining characteristics for grouts used in the installation of ceramic tiles. The following test methods are described: -determination of flexural and compressive strength; -determination of water absorption; -determination of shrinkage; -determination of resistance to abrasion; -determination of transverse deformation; -determination of chemical resistance.

Carreaux céramiques — Mortiers de joints et colles — Partie 4: Méthodes d'essai pour les mortiers de joints

General Information

Status
Published
Publication Date
24-Sep-2013
Current Stage
9093 - International Standard confirmed
Start Date
02-Aug-2019
Completion Date
02-Aug-2019
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INTERNATIONAL ISO
STANDARD 13007-4
Third edition
2013-10-15
Ceramic tiles — Grouts and adhesives —
Part 4:
Test methods for grouts
Carreaux céramiques — Mortiers de joints et colles —
Partie 4: Méthodes d’essai pour les mortiers de joints
Reference number
ISO 13007-4:2013(E)
ISO 2013
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ISO 13007-4:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013

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

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Published in Switzerland
ii © ISO 2013 – All rights reserved
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ISO 13007-4:2013(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 General test conditions and procedures ...................................................................................................................................... 1

3.1 Sampling ....................................................................................................................................................................................................... 1

3.2 Test conditions ........................................................................................................................................................................................ 1

3.3 Test materials ........................................................................................................................................................................................... 2

3.4 Mixing procedures ............................................................................................................................................................................... 2

3.5 Test report ................................................................................................................................................................................................... 2

4 Test methods ............................................................................................................................................................................................................. 3

4.1 Determination of flexural and compressive strength ............................................................................................ 3

4.2 Determination of water absorption ...................................................................................................................................... 5

4.3 Determination of shrinkage ......................................................................................................................................................... 6

4.4 Determination of resistance to abrasion .......................................................................................................................... 7

4.5 Determination of transverse deformation ...................................................................................................................... 8

4.6 Determination of chemical resistance ................................................................................................................................ 8

Annex A (informative) Test apparatus ................................................................................................................................................................ 9

Bibliography .............................................................................................................................................................................................................................22

© ISO 2013 – All rights reserved iii
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ISO 13007-4:2013(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. 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. 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.
The committee responsible for this document is ISO/TC 189, Ceramic tile.

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 WTO principles in the Technical Barriers to Trade

(TBT) see the following URL: http://www.iso.org/iso/home/standards_development/resources-for-

technical-work/foreword.htm

This third edition cancels and replaces the second edition (ISO 13007-4:2010), of which it constitutes a

minor revision.

ISO 13007 consists of the following parts, under the general title Ceramic tiles — Grouts and adhesives:

— Part 1: Terms, definitions and specifications for adhesives
— Part 2: Test methods for adhesives
— Part 3: Terms, definitions and specifications for grouts
— Part 4: Test methods for grouts
iv © ISO 2013 – All rights reserved
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INTERNATIONAL STANDARD ISO 13007-4:2013(E)
Ceramic tiles — Grouts and adhesives —
Part 4:
Test methods for grouts
1 Scope

This part of ISO 13007 describes methods for determining characteristics for grouts used in the

installation of ceramic tiles. The following test methods are described:
— determination of flexural and compressive strength (4.1);
— determination of water absorption (4.2);
— determination of shrinkage (4.3);
— determination of resistance to abrasion (4.4);
— determination of transverse deformation (4.5);
— determination of chemical resistance (4.6).
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 10545-6, Ceramic tiles — Part 6: Determination of resistance to deep abrasion for unglazed tiles

ISO 13007-2, Ceramic tiles — Grouts and adhesives — Part 2: Test methods for adhesives

3 General test conditions and procedures
3.1 Sampling
A representative sample of at least 2 kg shall be used.
3.2 Test conditions

Standard conditions shall be (23 ± 2) °C and (50 ± 5) % relative humidity (RH) and a circulation of air

in the testing area less than 0,2 m/s. Other test conditions may be specified in Clause 4. The tolerance in

the time of conditioning for all test specimens shall be as follows in Table 1.
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ISO 13007-4:2013(E)

Table 1 — Allowed tolerance window for testing time for all samples after conditioning

Sample conditioning time Allowed tolerance for testing
24 h ±0,5 h
7 d ±3 h
14 d ±6 h
21 d ±9 h
28 d ±12 h
3.3 Test materials

Condition all test materials including water for at least 24 h under standard conditions. The grout to be

tested shall be within its shelf life, where this is specified.
3.4 Mixing procedures
3.4.1 Cementitious grouts (CG)

The amount of water and/or liquid admix required for preparing the grout shall be as stated by the

manufacturer in parts by weight, i.e. liquid to dry powder (in the case where a range of values is given,

the average shall be used). Prepare a minimum quantity of 2 kg of the powder and the necessary liquid

using a mixer of the planetary type (see ISO 13007-2, Figure 1 and Figure 2) running at the slow speed

settings (140 ± 5) rotation per min and (62 ± 5) rotation per min planetary movement.

Carry out the following procedure.
1) Pour the liquid into the pan.
2) Scatter the dry powder over the liquid.
3) Mix for 30 s.
4) Take out the mixing paddle.
5) Scrape down the paddle and pan within 1 min.
6) replace the paddle and mix for 1 min

If required by the grout manufacturer’s instructions, let the grout mature as specified and then mix for

an additional 15 s.
3.4.2 Reaction resin grouts (RG)

Where reaction resin grouts are to be used, the manufacturer’s instructions shall be followed.

3.5 Test report
3.5.1 General
The information listed below shall be provided:
a) a reference to this part of ISO 13007 (ISO 13007-4:2013);
b) the date of test;
c) the type of grout, commercial designation and manufacturer’s name;
d) the source, date obtained, and complete identification of test sample;
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ISO 13007-4:2013(E)
e) the handling and storage of samples before testing;
f) the test conditions;
g) the amount of water or liquid used for preparing grout;
h) any other factor that could have affected the result.
3.5.2 Test results
The information listed below shall be provided:
a) Flexural and compressive strength
b) Water absorption
c) Shrinkage
d) Abrasion
4 Test methods
4.1 Determination of flexural and compressive strength

Flexural and compressive strength shall be tested following the general test conditions and procedures

given in Clause 3 and the specific instructions which follow.
4.1.1 Apparatus

4.1.1.1 Gang mould, three gang moulds used to prepare prismatic specimens (40 ± 0,1) mm × (40 ± 0,1)

mm × (160 ± 0,4) mm, with ground surfaces, made of steel. [See Figure A.1 a)]

4.1.1.2 Jolting apparatus, or jolting table used for the settlement of 10 mm × 40 mm × 160 mm grout

specimen in accordance with Figure A.2.

4.1.1.3 Testing machine, flexural strength testing machine shall be capable of applying the load with

suitable capacity and sensitivity for the test. The machine shall be provided with a flexure device in

accordance with Figure A.3.

4.1.1.4 Testing jig, the test requires the use of a jig in accordance with Figure A.4 to be incorporated

in the lower platen; the upper platen receives the load from the compressive strength testing machine

through an intermediate spherical seating.
4.1.2 Preparation of test units

Mould the specimens immediately after the mixing of the grout, with the mould firmly clamped

to the jolting table. Introduce, using a suitable scoop, the first of two layers of grout into each of the

compartments, directly from the mixing bowl. Spread the layer uniformly, then compact using 60 jolts.

Introduce the second layer of grout, level, and compact with a further 60 jolts. Lift the mould gently from

the jolting table, strike off excess of material, and smooth the surface with a flat trowel. Wipe off the

grout left on the perimeter of the mould. Place a 210 mm × 185 mm plate glass sheet of 6 mm thickness

on the mould. A plate of steel or other impermeable material of similar size can be used. Place the mould,

suitably identified, on a horizontal base in standard conditions, (23 ± 2) °C and (50 ± 5) % RH. After 24 h,

carefully remove the specimen from the mould. Prepare three specimens for each grout. For fast-setting

grout, demould the specimen immediately before the test.
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ISO 13007-4:2013(E)
4.1.3 Flexural strength under standard conditions

Keep the demoulded prism in standard conditions for 27 d leaving a clearance between prisms of at least

25 mm. After conditioning has been completed, place the prism in the testing machine (4.1.1.3) with one side

face on the supporting rollers and with the longitudinal axis normal to the support. Apply the load vertically

by means of the loading roller to the opposite side face of the prism and increase it smoothly at the rate of

(50 ± 10) N/s until fracture. Keep the prism halves in standard conditions until tested in compression.

4.1.4 Compressive strength under standard conditions

Test the prism halves broken in flexion, by means of the equipment specified in 4.1.1.4. Center the prism

halves laterally to the platens of the machine within ±0,5 mm, and longitudinally such that the end face

of the prism overhangs the platens or auxiliary plates by about 10 mm. Increase the load smoothly at the

rate of (2400 ± 200) N/s over the entire load application until fracture.
4.1.5 Flexural and compressive strength after freeze-thaw cycles

Prepare the test units in accordance with 4.1.2. Condition the test units for 6 d in standard conditions

and then immerse in water for 21 d before carrying out 25 freeze-thaw cycles following the procedure

given in ISO 13007-2, 4.4.4.5. Condition the test units for 3 d in standard conditions after the last cycle

and prior to test, examine them and record a brief description of surface appearance of the specimen.

Determine the flexural strength in accordance with 4.1.3 and the compressive strength in accordance

with 4.1.4.
4.1.6 Evaluation of results
4.1.6.1 Flexural strength
The flexural strength (R ) is calculated from:
(,15 )FL)(
R = N/mm (1)
where
b is the length of the side of the square section of the prism, in mm;
F is the load applied to the middle of the prism at fracture, in N;
L is the distance between the supports, in mm.
Calculate the mean of the three determinations to the nearest 0,1 N/mm .
4.1.6.2 Compressive strength
The compressive strength (R ) is calculated from:
c 2
R = N/mm (2)
1 600
where
F is the maximum load at fracture, in N;
1 600 = 40 mm × 40 mm is the area of the platens or auxiliary plates, in mm .

Calculate the mean of the six results obtained from the test to the nearest 0,1 N/mm .

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ISO 13007-4:2013(E)
4.1.7 Test report
The information listed in 3.5.1, items a) to h), plus the following:

— 3.5.2, item a): results of visual inspection of each specimen before and after flexural and compressive

strength testing with test results (individual and mean values) for each condition in N/mm .

4.2 Determination of water absorption

Water absorption shall be tested following the general test conditions and procedures given in Clause 3

and the specific instructions which follow.
4.2.1 Apparatus
4.2.1.1 Gang mould, three prism gang moulds as described in 4.1.1.1.

4.2.1.2 Inserts, three, 1 mm thick of rigid plastic (e.g. PTFE) or HDPE with no release agent.

4.2.1.3 Jolting apparatus, or jolting table as described in 4.1.1.2.
4.2.1.4 Tray, with a flat base large enough to contain three test specimens.
4.2.2 Preparation of test samples

Place the inserts approximately in the middle of the mould, parallel to the smaller faces. Following the

procedure described in 4.1.2, prepare six specimens of each grout. After demoulding, condition the

samples for 20 d in standard conditions. Seal the four sides with dimensions 40 mm × 80 mm by means

of a neutral curing silicone sealant so as to be water impermeable. Then condition the samples for an

additional 7 d.
4.2.3 Test procedure

28 d after mixing, weigh each test sample to the nearest 0,1 g and then place them vertically in the

tray, with the unsealed surface down on round or triangular spacers with dimensions 40 mm × 40 mm,

immersed in water, 5 mm to 10 mm deep, taking care to prevent the prism faces from coming in contact

with each other. Maintain the water level constant by adding water when necessary. After 30 min, remove

the test samples from water, quickly dry them by blotting with a dampened cloth, and immediately

weigh. Replace in the tray and repeat the procedure after an additional 210 min.
4.2.4 Evaluation and expression of results

Calculate the water absorption (W ), in grams, of each sample using the following formula:

W = m − m (3)
mt t d
where
m is the mass of the dry specimen, in g;
m is the mass of the specimen after immersion, in g.
Calculate the mean of at least three test samples.
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ISO 13007-4:2013(E)
4.2.5 Test report
The information listed in 3.5.1, items a) to h), plus the following:

— 3.5.2, item b): test results for water absorption expressed as individual and mean values after 30

min and 240 min.
4.3 Determination of shrinkage

Shrinkage shall be tested following the general test conditions and procedures given in Clause 3 and the

specific instructions which follow.
4.3.1 Apparatus
4.3.1.1 Gang mould, three gang moulds used to prepare prismatic specimens

(10 ± 0,1) mm × (40 ± 0,1) mm × (160 ± 0,4) mm, with ground surfaces, made of steel. [See Figure A.1 b).]

Suitable pins and holders [see Figures A.1 b) and A.1 c)] are used to provide measurement reference points.

4.3.1.2 Jolting apparatus, as described in Figure A.2.

4.3.1.3 Measuring apparatus, shall consist of a measurement attachment and a base with adjustment

screws. The measurement attachment shall be formed by a dial gauge, which reads accurately to 0,01 mm,

rigidly mounted in a measuring frame (see Figures A.5, A.6, and A.7).

4.3.1.4 Calibration rod, or reference rod shall be used as a standard length against which gauge readings

can be tested. The rod shall be made of material having a negligible coefficient of expansion (e.g. Invar).

4.3.2 Preparation of test samples

Assemble suitable mould to prepare samples. Mould the specimens immediately after the mixing of the

grout, with the mould firmly clamped to the jolting table. Introduce, using a suitable scoo

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