Clay roofing tiles for discontinuous laying - Determination of physical characteristics - Part 2: Test for frost resistance

This European Standard specifies the test method for the determination of frost resistance of clay roofing tiles and fittings.
The test method is applicable in all CEN member countries in accordance with the required performance level of each member state.

Dachziegel für überdeckende Verlegung - Bestimmung der physikalischen Eigenschaften - Teil 2: Prüfung der Frostwiderstandsfähigkeit

Diese Europäische Norm legt das Prüfverfahren für die Bestimmung der Frostwiderstandsfähigkeit von Dachziegeln und Formziegeln fest.
Das Prüfverfahren gilt in allen CEN-Mitgliedsländern in Übereinstimmung mit dem im jeweiligen Mitgliedstaat geforderten Leistungsniveau.

Tuiles de terre cuite pour pose en discontinu - Détermination des caractéristiques physiques - Partie 2: Essais de résistance au gel

La présente Norme européenne spécifie la méthode d'essai pour la détermination de la résistance au gel des tuiles et accessoires de terre cuite.
La méthode d'essai est applicable dans tous les états membres du CEN conformément au niveau de performances requis par chaque état membre.

Opečni strešniki - Ugotavljanje fizikalnih lastnosti - 2. del: Preskušanje odpornosti proti zamrzovanju

Ta evropski standard določa preskusne metode za ugotavljanje odpornosti proti zamrzovanju za opečne strešnike in opremo. Ta preskusna metoda se uporablja v vseh državah članicah CEN v skladu z zahtevanim nivojem zmogljivosti za vsako državo članico.

General Information

Status
Published
Publication Date
14-May-2013
Current Stage
9093 - Decision to confirm - Review Enquiry
Due Date
02-Dec-2018
Completion Date
09-Jun-2020

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SLOVENSKI STANDARD
SIST EN 539-2:2013
01-julij-2013
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SIST EN 539-2:2006
SIST EN 539-2:2006/AC:2009

2SHþQLVWUHãQLNL8JRWDYOMDQMHIL]LNDOQLKODVWQRVWLGHO3UHVNXãDQMHRGSRUQRVWL

SURWL]DPU]RYDQMX

Clay roofing tiles for discontinuous laying - Determination of physical characteristics -

Part 2: Test for frost resistance
Dachziegel für überdeckende Verlegung - Bestimmung der physikalischen Merkmale -
Teil 2: Prüfung der Frostwiderstandsfähigkeit

Tuiles de terre cuite pour pose en discontinu - Détermination des caractéristiques

physiques - Partie 2 : Essais de résistance au gel
Ta slovenski standard je istoveten z: EN 539-2:2013
ICS:
91.060.20 Strehe Roofs
91.100.25 .HUDPLþQLJUDGEHQLL]GHONL Ceramic building products
SIST EN 539-2:2013 en,fr,de

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

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SIST EN 539-2:2013
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SIST EN 539-2:2013
EUROPEAN STANDARD
EN 539-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2013
ICS 91.100.25 Supersedes EN 539-2:2006
English Version
Clay roofing tiles for discontinuous laying - Determination of
physical characteristics - Part 2: Test for frost resistance

Tuiles de terre cuite pour pose en discontinu - Dachziegel für überdeckende Verlegung - Bestimmung der

Détermination des caractéristiques physiques - Partie 2: physikalischen Eigenschaften - Teil 2: Prüfung der

Essais de résistance au gel Frostwiderstandsfähigkeit
This European Standard was approved by CEN on 14 March 2013.

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

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

standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

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

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

status as the official versions.

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

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

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United

Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 539-2:2013: E

worldwide for CEN national Members.
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SIST EN 539-2:2013
EN 539-2:2013 (E)
Contents Page

Foreword ..............................................................................................................................................................3

1 Scope ......................................................................................................................................................4

2 Normative references ............................................................................................................................4

3 Terms and definitions ...........................................................................................................................4

4 Test pieces .............................................................................................................................................8

5 Test method (European single test method) ......................................................................................8

Annex A (normative) Determination of the dry density by hydrostatic weighting .................................... 17

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

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SIST EN 539-2:2013
EN 539-2:2013 (E)
Foreword

This document (EN 539-2:2013) 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 IBN.

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 November 2013, and conflicting national standards shall be withdrawn

at the latest by November 2013.

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

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 539-2:2006.

In comparison to the previous edition, modifications have been made in Clause 1, subclauses 3.1, 3.5, 3.6

and 3.8, Clause 5 and Annex A. The test methods A, B, C and D are withdrawn.
This part of EN 539 is preceded by:

 EN 539-1, Clay roofing tiles for discontinuous laying — Determination of physical characteristics —

Part 1: Impermeability test

This part of EN 539 is one of a series of standards concerning clay roofing tiles, the list of which is indicated

below:

 EN 1304, Clay roofing tiles and fittings — Products definitions and specifications

 EN 538, Clay roofing tiles for discontinuous laying — Flexural strength test

 EN 1024, Clay roofing tiles for discontinuous laying — Determination of geometric characteristics

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,

Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

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SIST EN 539-2:2013
EN 539-2:2013 (E)
1 Scope

This European Standard specifies the test method for the determination of frost resistance of clay roofing tiles

and fittings.

The test method is applicable in all CEN member countries in accordance with the required performance level

of each member state.
2 Normative references
Not applicable.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
pit

superficial fault consisting of a fraction of material detached from the body of the product on the visible surface

of the product with a mean dimension of over 7 mm

Note 1 to entry: This is often due to the expansion of a particle of, for example, chalk or pyrites.

[SOURCE: EN 1304:2013, 3.5.18.2]
Figure 1 — Example of pit
3.2
hair crack
superficial crack having a width of not more than 0,20 mm
Figure 2 — Example of hair crack
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SIST EN 539-2:2013
EN 539-2:2013 (E)
3.3
nascent crack

crack formation at the edge, with the crack only penetrating slightly into the interior of the ceramic body

Figure 3 — Example of nascent crack
3.4
surface crack

crack more than 0,20 mm wide and with a length of more than 30 mm, which does not pass through the

thickness of the product
Figure 4 — Example of surface crack
3.5
surface damage

loss of a part of the ceramic body material from the surface of the product with the longest dimension greater

than 15 mm together with the widest dimension perpendicular to the length greater than 5 mm

3.5.1
scaling
surface raising, nascent chipping, or crack, which initiates damage
Figure 5 — Example of scaling
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SIST EN 539-2:2013
EN 539-2:2013 (E)
3.5.2
chip
loss of a fraction of the body material of the product
Figure 6 — Example of chip
3.5.3
peeling
loss of a part of the superficial layer of the product
Figure 7 — Example of peeling
3.5.4
flaking

progressive loss of body material affecting parts or the whole thickness of the product

Figure 8 — Example of flaking
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SIST EN 539-2:2013
EN 539-2:2013 (E)
3.6
structural crack

structural fault consisting of a more or less regular crack running throughout the entire thickness of the product

and visible to the naked eye
[SOURCE: EN 1304:2013, 3.5.17.2]
Figure 9 — Example of structural crack
3.7
loss of ribs

loss of body material from the interlocking ribs sufficient to influence their function

Figure 10 — Example of loss of ribs
3.8
break

structural fault consisting of a separation of the product into two or more fragments

[SOURCE: EN 1304:2013, 3.5.17.1]
Figure 11 — Example of break
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SIST EN 539-2:2013
EN 539-2:2013 (E)
3.9
delamination

lamellar flaking which can lead to the delamination of the body in a succession of parallel layers

Figure 12 — Example of delamination
3.10
calibration device

roof tile or ceramic slab which may be specially made to possess the characteristics defined within 5.4.1.1 and

which will not be damaged during the calibration
4 Test pieces

If the tiles or fittings are placed on the market with a ceramic coating and/or treatment, the tests shall be

carried out on test pieces which have this same coating and/or treatment.

When the tiles or fittings are taken from a site or building, they shall be tested in the state in which they are

found, but the interpretation of the test results shall take into account the stresses to which these installed

products have been subjected.
5 Test method (European single test method)
5.1 Principle

Test pieces are progressively immersed in water for a period of seven days, then covered on their back with a

damp cloth, and then placed in a freezing chamber where they are subjected to freeze/thaw cycles.

During these cycles, the products are frozen by air and thawed by water on all of their surfaces at the same

time.
The damage that occurs during the test is recorded.
The number of cycles of each level is specified in this European Standard.
5.2 Apparatus
5.2.1 Freeze/thaw unit

The freeze/thaw unit shall consist of a freezing chamber, fan, cooling units, water level regulator, water drain

and programme control unit. The freeze/thaw unit shall be closed on all sides. An example is given in Figure 13.

The freeze/thaw unit shall be provided with a rack to hold the test pieces as specified in 5.4.2.5.

Temperature sensor(s) shall be fitted inside the freezing chamber to permit monitoring of the temperature

distribution inside the chamber. The temperature sensor(s), e.g. measurement thermocouples or resistance

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SIST EN 539-2:2013
EN 539-2:2013 (E)

thermometers and suitable recording instruments, shall have an error limit of ± 0,5 K. Tolerances are given by

taking into account the uncertainty of the recording instruments.

If necessary, deflectors should be fitted to maintain a uniform temperature distribution.

It shall be possible to regulate the cooling capacity of the unit (see 5.2.2) to ensure that the cooling and ice

formation rates as measured in a calibration tile are in accordance with the freeze/thaw curve given in

Figure 14.

A water feed shall be provided to ensure that both surfaces of the tile are uniformly flooded by water. The

water temperature shall be (11 ± 6) °C.

In order to achieve a steady and reproducible sequence of the freeze/thaw cycles, the freeze/thaw unit shall

be equipped with a programme control unit to allow the cooling and the thawing processes to be carried out in

the required time.
Key
1 water input
2 heat exchanger
3 roofing tile fixing
4 circulating fan
Figure 13 — Example of freeze/thaw unit
5.2.2 Regulation of the cooling capacity of the freeze/thaw unit
5.2.2.1 Methods of control

The method of regulating the cooling capacity of the freeze/thaw unit depends on whether or not the

freeze/thaw unit has a fixed cooling capacity or a variable cooling capacity. The methods to be adopted for

each of these two options are described in 5.2.2.2 and 5.2.2.3.
5.2.2.2 Freeze/thaw units with fixed cooling capacity

The cooling capacity of the unit is fixed or held constant and the mass and water content of the test pieces

that is required to meet the freeze/thaw curve is established by test. Thereaft
...

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