Fibre cement products - Determination of pull through and shear resistance and bending strength calculations - Part 1: Flat sheets

This document specifies a test method for pull through and shear resistance of fibre-cement flat sheets for roofing and cladding.
The results are also applicable for:
-   Coated or uncoated sheets manufactured at the same production facility as the tested sheets.
-   The test method can be applied to textured or non-textured fibre-cement flat sheets. The results of non-textured sheets are only applicable for textured sheets if the nominal minimum thickness of the textured sheet is at least the nominal thickness of the non-textured sheet.
-   The same type of fixing head or washer assembly where applicable if the diameter of the fixing head or washer is 0 mm to 2 mm larger than in the test.
-   The Shore A hardness of the sealing washer, where applicable, is ± 5 that of the washer used in the test.
-   The diameter of the drilled hole through the fibre cement sheet is 0 mm to 2 mm smaller than in the test, providing there is the required clearance hole around the shank of the fastener.
It applies only to products as delivered.

Faserzementprodukte - Bestimmung des Durchzugs- und Querkraftwiderstandes und der Biegefestigkeit - Teil 1: Tafeln

Dieses Dokument legt ein Verfahren für die Prüfung des Durchzugs  und Querkraftwiderstands von Faserzement-Tafeln für Dacheindeckung und Wandbekleidung fest.
Die Ergebnisse gelten auch für:
-   beschichtete oder unbeschichtete Tafeln, die in derselben Produktionsstätte hergestellt wurden wie die geprüften Tafeln.
-   Das Prüfverfahren kann auf strukturierte und nicht strukturierte Faserzement-Tafeln angewendet werden. Die Ergebnisse für nicht strukturierte Tafeln gelten nur dann für strukturierte Tafeln, wenn die Nenn-Mindestdicke der strukturierten Tafel mindestens der Nenndicke der nicht strukturierten Tafel entspricht.
-   Derselbe Typ von Befestigungsköpfen oder Scheibenbaugruppen, falls zutreffend, wenn der Durchmesser des Befestigungskopfes oder der Scheibe 0 mm bis 2 mm größer ist als bei der Prüfung.
-   Die Shore A Härte der Dichtscheibe, falls zutreffend, entspricht der Shore A Härte der bei der Prüfung verwendeten Scheibe ±5.
-   Der Durchmesser des Bohrlochs in der Faserzement-Tafel ist 0 mm bis 2 mm kleiner als bei der Prüfung, sofern der Schaft des Befestigungsmittels das erforderliche Spiel im Loch hat.
Es gilt nur für Produkte im Auslieferungszustand.

Produits en fibres-ciment - Détermination des calculs de résistance à la traversée de la tête, au cisaillement et à la flexion - Partie 1 : Plaques planes

Le présent document spécifie une méthode d'essai des résistances au déboutonnage et au cisaillement des plaques planes en fibres-ciment pour toiture et bardage.
Les résultats sont également applicables :
-   aux plaques revêtues et non revêtues fabriquées sur le même site de production que les plaques soumises à essai ;
-   la méthode d'essai peut être appliquée à des plaques planes en fibres-ciment texturées ou non texturées. Les résultats pour les plaques non texturées ne sont applicables aux plaques texturées que si l'épaisseur nominale minimale de la plaque texturée est au moins égale à l'épaisseur nominale de la plaque non texturée ;
-   au même type d'assemblage de tête ou de rondelle de fixation (le cas échéant) si le diamètre de la tête ou rondelle de fixation est plus grand de 0 mm à 2 mm que dans l'essai ;
-   la dureté Shore A de la rondelle d'étanchéité, si applicable, est de ± 5 par rapport à celle de la rondelle utilisée pour l'essai ;
-   le diamètre du trou percé à travers la plaque en fibres-ciment est inférieur de 0 mm à 2 mm à celui de l'essai, sous réserve de la présence du trou de passage requis autour de la tige de l'élément de fixation.
Le présent document ne s'applique qu'aux produits dans l'état où ils sont livrés.

Vlaknatocementni proizvodi - Ugotavljanje vlečne odpornosti in strižne trdnosti ter izračun upogibne trdnosti - 1. del: Ravne plošče

General Information

Status
Published
Public Enquiry End Date
14-Oct-2020
Publication Date
05-May-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-May-2022
Due Date
09-Jul-2022
Completion Date
06-May-2022

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SLOVENSKI STANDARD
SIST EN 17468-1:2022
01-junij-2022

Vlaknatocementni proizvodi - Ugotavljanje vlečne odpornosti in strižne trdnosti ter

izračun upogibne trdnosti - 1. del: Ravne plošče

Fibre cement products - Determination of pull through and shear resistance and bending

strength calculations - Part 1: Flat sheets
Faserzementprodukte - Bestimmung des Durchzugs- und Querkraftwiderstandes und
der Biegefestigkeit - Teil 1: Tafeln

Produits en fibres-ciment - Détermination des calculs de résistance à la traversée de la

tête, au cisaillement et à la flexion - Partie 1 : Plaques planes
Ta slovenski standard je istoveten z: EN 17468-1:2022
ICS:
91.060.20 Strehe Roofs
91.100.40 Cementni izdelki, ojačani z Products in fibre-reinforced
vlakni cement
SIST EN 17468-1:2022 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 17468-1:2022
---------------------- Page: 2 ----------------------
SIST EN 17468-1:2022
EN 17468-1
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2022
EUROPÄISCHE NORM
ICS 91.100.40
English Version
Fibre cement products - Determination of pull through and
shear resistance and bending strength calculations - Part
1: Flat sheets

Produits en fibres-ciment - Détermination des calculs Faserzementprodukte - Bestimmung des Durchzugs-

de résistance au déboutonnage, au cisaillement et à la und Querkraftwiderstandes und der Biegefestigkeit -

flexion - Partie 1 : Plaques planes Teil 1: Tafeln
This European Standard was approved by CEN on 13 March 2022.

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 NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17468-1:2022 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 17468-1:2022
EN 17468-1:2022 (E)
Contents Page

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

Introduction .......................................................................................................................................................... 4

1 Scope .......................................................................................................................................................... 5

2 Normative references .......................................................................................................................... 5

3 Terms and definitions ......................................................................................................................... 6

4 Symbols and abbreviations ............................................................................................................... 6

5 Product requirements ......................................................................................................................... 7

5.1 Composition ............................................................................................................................................ 7

5.2 Appearance and finish ........................................................................................................................ 7

6 Sampling procedure ............................................................................................................................. 7

6.1 Sampling method .................................................................................................................................. 7

6.2 Type testing ............................................................................................................................................. 8

6.3 Preparation of test specimens ......................................................................................................... 8

7 Test method for the determination of pull through resistance ........................................... 9

7.1 Principle ................................................................................................................................................... 9

7.2 Tensile testing machine ...................................................................................................................... 9

7.3 Fasteners ................................................................................................................................................ 12

7.4 Test procedure ..................................................................................................................................... 12

7.5 Expression of results and test report .......................................................................................... 12

7.5.1 Pull through resistance ..................................................................................................................... 12

7.5.2 Test report ............................................................................................................................................. 13

8 Test method for the determination of shear resistance ....................................................... 14

8.1 Principle ................................................................................................................................................. 14

8.2 Test equipment .................................................................................................................................... 14

8.3 Fasteners ................................................................................................................................................ 15

8.4 Test procedure ..................................................................................................................................... 16

8.5 Expression of results and test report .......................................................................................... 16

8.5.1 Shear resistance .................................................................................................................................. 16

8.5.2 Test report ............................................................................................................................................. 17

9 Mechanical characteristics .............................................................................................................. 17

9.1 Bending strength ................................................................................................................................. 17

9.1.1 General.................................................................................................................................................... 17

9.1.2 Characteristic bending strength .................................................................................................... 18

9.1.3 Design bending strength .................................................................................................................. 20

9.2 Design pull through resistance / shear resistance ................................................................. 20

Bibliography ....................................................................................................................................................... 21

---------------------- Page: 4 ----------------------
SIST EN 17468-1:2022
EN 17468-1:2022 (E)
European foreword

This document (EN 17468-1:2022) has been prepared by Technical Committee CEN/TC 128 “Roof

covering products for discontinuous laying and products for wall cladding”, the secretariat of which is

held by NBN.

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 October 2022, and conflicting national standards shall

be withdrawn at the latest by October 2022.

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 also proposes rules and equations to calculate characteristic bending strength to fit into

the safety concept of the Eurocode.

This document is Part 1, dealing with flat sheets, whereas Part 2 deals with profiled sheets.

Any feedback and questions on this document should be directed to the users’ national standards body.

A complete listing of these bodies can be found on the CEN website.

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

following countries are bound to implement this European Standard: 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 the United

Kingdom.
---------------------- Page: 5 ----------------------
SIST EN 17468-1:2022
EN 17468-1:2022 (E)
Introduction

Different fibre-cement flat sheets on the market are assessed for pull through resistance.

Fibre-cement flat sheets have been evaluated, for pull through resistance, by a number of test methods

designed to simulate conditions of use.
The results from the different existing methods are not directly comparable.

This document establishes an agreed method for evaluation of the pull through resistance and shear

resistance of fibre-cement flat sheet products, based on the experiences obtained over the last number of

years in different countries.

This is a testing standard with no classifications, but this test procedure may be used by national

regulators to set classifications for roof and wall assemblies.

The performance of an assembly constructed with these products depends not only on the properties of

product as required by this document, but also on the design, construction and performance of the

assembly.
---------------------- Page: 6 ----------------------
SIST EN 17468-1:2022
EN 17468-1:2022 (E)
1 Scope

The document establishes an agreed method for evaluation of pull through resistance

(tension/compression for fasteners through the sheets), shear resistance, bending strength and bending

modulus of elasticity and suggests an approved safety concept of fibre-cement flat sheets for internal and

external wall and ceiling finishes based on the experiences obtained over the last number of years in

different countries. The results are only applicable to the fibre-cement product and not to the complete

fixing assembly.

NOTE 1 For design purposes of fibre-cement flat sheets in the final application, the failure modes pull-out and

breaking of the fixing or substructure are not in the scope of this standard. They might become decisive and need

to be tested or calculated according to the relevant design standards for fixings (e.g. EN 14592) or ETA and

substructure (e.g. Eurocode 3 for steel, Eurocode 5 for wood and Eurocode 9 for aluminium substructures) and

compared with the results for pull-through and shear resistance.
The results are also applicable for:

— Coated or uncoated sheets manufactured at the same production facility as the tested sheets

provided that the sheets are of the same type, have at least the same declared class according to

EN 12467:2012+A2:2018, Table 6 and at least the same nominal thickness.

— The test method can be applied to textured or non-textured fibre-cement flat sheets. The results of

non-textured sheets are only applicable for textured sheets if the nominal minimum thickness of the

textured sheet is at least the nominal thickness of the non-textured sheet.

— The same type of fixing head or washer assembly where applicable if the diameter of the fixing head

or washer is 0 mm to 2 mm larger than in the test.

— The Shore A hardness of the sealing washer, where applicable, is ± 5 that of the washer used in the

test, given that the washer thickness is at least as thick, the washer material at least as strong and the

shape (dome or flat) of the washer equal to what has been tested.
NOTE 2

A) For pull-through resistance, if the diameter of the drilled hole through the fibre-cement sheet is 0 mm

to 2 mm smaller or equal than in the test up to the diameter of the shank of the fastener, providing, during the test

there is the required clearance hole around the shank of the fastener.

B) For shear resistance, if the diameter of the drilled hole is equal to what has been tested.

It applies only to products as delivered.
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.

EN 12467:2012+A2:2018, Fibre-cement flat sheets - Product specification and test methods

EN 1990, Eurocode - Basis of structural design

EN ISO 7500-1, Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1:

Tension/compression testing machines - Calibration and verification of the force-measuring system (ISO

7500-1)
---------------------- Page: 7 ----------------------
SIST EN 17468-1:2022
EN 17468-1:2022 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological 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
type test

test carried out to demonstrate conformity with the requirements of this document or for approval of a

new product and/or when a fundamental change is made in formulation and/or method of manufacture,

the effects of which cannot be predicted on the basis of previous experience

Note 1 to entry: The test is performed on the delivered product, but is not required for each batch.

3.2
as delivered

same condition as the fibre-cement producer intends to supply the product after completing all aspects

of the process including maturing and, when appropriate, painting
3.3
span
distance between the parallel support axes
4 Symbols and abbreviations
For the purpose of this document, the following symbols and abbreviations apply.
a deformation
b width of test piece, in millimetres
d diameter of the fastener or fastener assembly (washer)
d diameter of the supporting ring
support
e thickness of the sheet, in millimetres
e nominal thickness of the sheet according to EN 12467
nom
e average thickness of a sheet
F force, in newtons (load)
F elastic bending load, in newtons
F load pull through, in the axis of the fastener
F breaking load shear, in newtons
characteristic bending strength

f 5 % quantile with 75 % confidence level of the bending strength for the condition as tested

k05
f average bending strength
f average elastic bending strength
el m
---------------------- Page: 8 ----------------------
SIST EN 17468-1:2022
EN 17468-1:2022 (E)
k statistic factor according to EN 1990

κ conversion factor for fibre-cement products or test results that need to be applied to results

wet

tested in “dry conditions” as specified in EN 12467 and shall be valid for environmental

applications, where fibre-cement can become totally water soaked (e.g. façade or roof

application)
l span between supports, in millimetres
l the minimum edge distance longitudinal to the direction of the production
min,long
l the minimum edge distance perpendicular to the direction of the production
min,perp
n number of samples
R characteristic force
R characteristic pull through resistance
k,ax
R characteristic shear resistance
k,v
R design value pull through resistance
d,ax
R design value shear resistance
d,v

κ “kappa” factor for reducing the bending strength climatic (23 °C, 50 % RH.) to wet condition

wet
α multiplication of ageing factors, product R
s estimate of the standard deviation
γ confidence level (%)

γM partial safety factor for a component property under consideration of model uncertainties and

size deviations

R mean quotient of the modulus of rupture of exposed and unexposed specimen, where “ ” shall

i i

stand for testing 1 freeze–thaw, 2 soak-dry and 3 warm-water according to EN 12467

R mean quotient of the modulus of rupture of exposed and unexposed specimen at 95 %

L,i

confidence level as defined in EN 12467, where “ ” shall stand for testing: 1 freeze–thaw, 2

soak-dry and 3 warm-water according to EN 12467
5 Product requirements
5.1 Composition
Fibre-cement flat sheets shall have a composition according to EN 12467.
5.2 Appearance and finish
The appearance and finish shall be evaluated as defined in EN 12467.
6 Sampling procedure
6.1 Sampling method

Take an adequate number of full size sheets (minimum 10) drawn at random from a consignment of

sheets or, in the case of continuous production, from a production batch. All test specimens used on the

test assembly shall be from the same consignment or production batch. The size of the batch is chosen by

the manufacturer up to a maximum of one week’s production.
---------------------- Page: 9 ----------------------
SIST EN 17468-1:2022
EN 17468-1:2022 (E)
6.2 Type testing
The pull through resistance and shear resistance tests are type tests.
6.3 Preparation of test specimens

— Cut 10 samples from 10 different flat sheets to (400 ± 5) mm × (400 ± 5) mm for the pull through

tests.

— Cut 10 samples from 10 different flat sheets to (250 ± 5) mm × (250 ± 5) mm for the shear tests.

— The specimens shall be stored under normal climatic conditions of 23 ± 5 °C and a relative air

humidity of 50 ± 20 % RH (23/50) until equilibrium of mass. The equilibrium of mass under climate

at 23 °C and 50 % RH is reached if the mass has a lower difference than 0,1 % in weighting with an

interval of 24 h. As EN 12467:2012+A2:2018, 3.10.

— The sheets shall be pre-drilled using a drill bit of nominal diameter as specified by the manufacturer.

Self-drilling screws of a nominal diameter/size can also be used as specified by the manufacturer.

For sheets category A and B (EN 12467), the specimens for pull through resistance and shear

resistance should be stored prior to the test between 7 and 14 days in ambient laboratory conditions

followed by 24 h immersion in water for sheets with thickness ≤ 20 mm or 48 h for sheets with

thickness > 20 mm.

— The specimens shall be tested immediately upon removal from the water. For sheets category C and

D (EN 12467), the specimens for pull through resistance and shear resistance should be stored prior

to the test between 7 and 14 days in ambient laboratory conditions and relevant cases shall be tested

immediately upon removal from the conditioning room.

— The conditioning described above is the normal conditioning. It is the same as the conditioning for

type testing of bending strength depending the category in accordance with EN 12467. For sheets

category A and B (EN 12467) the specimens for pull through resistance and shear resistance may be

tested similar to category C and D provided that for design appropriate correc
...

SLOVENSKI STANDARD
oSIST prEN 17468-1:2020
01-oktober-2020

Vlaknatocementni proizvodi - Ugotavljanje vlečne odpornosti in strižne trdnosti ter

izračun upogibne trdnosti - 1. del: Ravne plošče

Fibre cement products - Determination of pull through and shear resistance and bending

strength calculations - Part 1: Flat sheets
Faserzementprodukte - Bestimmung des Durchzugs- und Querkraftwiderstandes und
der Biegefestigkeit - Teil 1: Tafeln

Produits en fibres-ciment - Détermination des calculs de résistance à la traversée de la

tête, au cisaillement et à la flexion - Partie 1 : Plaques planes
Ta slovenski standard je istoveten z: prEN 17468-1
ICS:
91.060.20 Strehe Roofs
91.100.40 Cementni izdelki, ojačani z Products in fibre-reinforced
vlakni cement
oSIST prEN 17468-1:2020 en,fr,de

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

---------------------- Page: 1 ----------------------
oSIST prEN 17468-1:2020
---------------------- Page: 2 ----------------------
oSIST prEN 17468-1:2020
DRAFT
EUROPEAN STANDARD
prEN 17468-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS 91.100.40
English Version
Fibre cement products - Determination of pull through and
shear resistance and bending strength calculations - Part
1: Flat sheets

Produits en fibres-ciment - Détermination des calculs Faserzementprodukte - Bestimmung des Durchzugs-

de résistance à la traversée de la tête, au cisaillement et und Querkraftwiderstandes und der Biegefestigkeit -

à la flexion - Partie 1 : Plaques planes Teil 1: Tafeln

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 128.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

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 supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17468-1:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 17468-1:2020
prEN 17468-1:2020 (E)
Contents Page

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

Introduction .......................................................................................................................................................... 4

1 Scope .......................................................................................................................................................... 5

2 Normative references .......................................................................................................................... 5

3 Terms and definitions ......................................................................................................................... 5

4 Symbols and abbreviations ............................................................................................................... 6

5 Product requirements ......................................................................................................................... 7

5.1 Composition ............................................................................................................................................ 7

5.2 Appearance and finish ........................................................................................................................ 7

6 Sampling procedure ............................................................................................................................. 7

6.1 Sampling method .................................................................................................................................. 7

6.2 Type testing ............................................................................................................................................. 7

6.3 Preparation of test specimens ......................................................................................................... 7

7 Test method for the determination of pull through resistance ........................................... 8

7.1 Principle ................................................................................................................................................... 8

7.2 Test equipment ...................................................................................................................................... 8

7.3 Fasteners .................................................................................................................................................. 9

7.4 Test procedure ....................................................................................................................................... 9

7.5 Expression of results and test report .......................................................................................... 10

8 Test method for the determination of shear resistance ....................................................... 11

8.1 Principle ................................................................................................................................................. 11

8.2 Test equipment .................................................................................................................................... 11

8.3 Fasteners ................................................................................................................................................ 12

8.4 Test procedure ..................................................................................................................................... 12

8.5 Expression of results and test report .......................................................................................... 13

9 Mechanical characteristics .............................................................................................................. 14

9.1 Bending strength (MOR)................................................................................................................... 14

9.2 Longitudinal direction ...................................................................................................................... 16

9.3 Pull through resistance / Shear resistance ............................................................................... 17

Bibliography ....................................................................................................................................................... 18

---------------------- Page: 4 ----------------------
oSIST prEN 17468-1:2020
prEN 17468-1:2020 (E)
European foreword

This document (prEN 17468-1:2020) has been prepared by Technical Committee CEN/TC 128 “Roof

covering products for discontinuous laying and products for wall cladding", the secretariat of which is

held by NBN.
This document is currently submitted to the CEN Enquiry.
---------------------- Page: 5 ----------------------
oSIST prEN 17468-1:2020
prEN 17468-1:2020 (E)
Introduction

Different fibre-cement flat sheets on the market are assessed for pull through resistance.

Fibre-cement flat sheets have been evaluated, for pull through resistance, by a number of test methods

designed to simulate conditions of use.
The results from the different existing methods are not directly comparable.

This document establishes an agreed method for evaluation of the pull through resistance and shear

resistance of fibre-cement flat sheet products, based on the experiences obtained over the last number of

years in different countries.

This is a product standard with no classifications, but this test procedure may be used by national

regulators to set classifications for roof and wall assemblies.

The performance of an assembly constructed with these products depends not only on the properties of

product as required by this document, but also on the design, construction and performance of the

assembly as a whole in relation to the environment and conditions of use.
---------------------- Page: 6 ----------------------
oSIST prEN 17468-1:2020
prEN 17468-1:2020 (E)
1 Scope

This document specifies a test method for pull through and shear resistance of fibre-cement flat sheets

for roofing and cladding.
The results are also applicable for:

— Coated or uncoated sheets manufactured at the same production facility as the tested sheets.

— The test method can be applied to textured or non-textured fibre-cement flat sheets. The results of

non-textured sheets are only applicable for textured sheets if the nominal minimum thickness of the

textured sheet is at least the nominal thickness of the non-textured sheet.

— The same type of fixing head or washer assembly where applicable if the diameter of the fixing head

or washer is 0 mm to 2 mm larger than in the test.

— The Shore A hardness of the sealing washer, where applicable, is ± 5 that of the washer used in the

test.

— The diameter of the drilled hole through the fibre cement sheet is 0 mm to 2 mm smaller than in the

test, providing there is the required clearance hole around the shank of the fastener.

It applies only to products as delivered.
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.

EN 494:2012+A1:2015, Fibre-cement profiled sheets and fittings - Product specification and test methods

EN 12467:2012+A2:2018, Fibre-cement flat sheets - Product specification and test methods

EN 1990, Eurocode - Basis of structural design

EN ISO 7500-1, Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1:

Tension/compression testing machines - Calibration and verification of the force-measuring system (ISO

7500-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at http://www.electropedia.org/
3.1
flat sheet
as defined in EN 12467
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oSIST prEN 17468-1:2020
prEN 17468-1:2020 (E)
3.2
type test

test carried out to demonstrate conformity with the requirements of this document or for approval of a

new product and/or when a fundamental change is made in formulation and/or method of manufacture,

the effects of which cannot be predicted on the basis of previous experience

Note 1 to entry: The test is performed on the delivered product, but is not required for each batch.

3.3
as delivered

same condition as the producer intends to supply the product after completing all aspects of the process

including maturing and, when appropriate, painting
3.4
span
distance between the parallel support axes
4 Symbols and abbreviations

For the purposes of this document, the following symbols and abbreviations apply.

b width of test piece, in millimetres
e thickness of the sheet, in millimetres
F breaking load, in newtons
F elastic bending load, in newtons
F breaking load pull through, in newtons
F breaking load shear, in newtons
f characteristic bending strength 5 % quantile with 75 % confidence level
k05
f average bending strength
f average elastic bending strength
el m
k statistic factor according to EN 1990
l span between supports, in millimetres
N newtons
R characteristic pull through resistance
k,ax
R characteristic shear resistance
k,v
R design value pull through resistance
d,ax
R design value shear resistance
d,x

κ “kappa” factor for reducing the bending strength climatic (20 °C, 65 % r. H.) to wet condition

wet
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oSIST prEN 17468-1:2020
prEN 17468-1:2020 (E)
α multiplication of ageing factors, Product Ri
γ material safety factor
s standard deviation
γ confidence level (%)

R mean quotient of the modulus of rupture of exposed and unexposed specimen, where “ ” shall

i i
stand for 1 testing freeze-thaw, 2 soak-dry and 3 warm-water according to EN 494

R mean quotient of the modulus of rupture of exposed and unexposed specimen at 95 %

L,i

confidence level as defined in EN 494, where “i” shall stand for testing: 1 freeze-thaw, 2 soak-

dry and 3 warm-water according to EN 494
5 Product requirements
5.1 Composition
Fibre cement flat sheets shall have a composition according to EN 12467.
5.2 Appearance and finish
The appearance and finish shall be as defined in EN 12467.
6 Sampling procedure
6.1 Sampling method

Take an adequate number of full size sheets (minimum 10) drawn at random from a consignment of

sheets or, in the case of continuous production, from a production batch. All test specimens used on the

test assembly shall be from the same consignment or production batch. The size of the batch is chosen by

the manufacturer up to a maximum of one week’s production.
6.2 Type testing
The pull through resistance and shear resistance tests are type tests.
6.3 Preparation of test specimens

— Cut 10 samples from 10 different flat sheets to (400+/- 5)mm x (400+/- 5) mm for the pull through

tests.

— Cut 10 samples from 10 different flat sheets to (250 +/- 5) mm x (250 +/- 5) mm for the shear tests.

— The specimens shall be stored under normal climatic conditions of 20 °C and a relative air humidity

of 65 % r. H. (20/65) until equilibrium of mass. The equilibrium of mass under climate at 20 °C and

65 % r. H. is reached if the mass has a lower difference than 0.1 % in weighting with an interval of

24 h.
— The sheets shall be pre-drilled using a drill
...

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