1、November 2011 Translation by DIN-Sprachendienst.English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 91.100.30!$v-.“1831011www.din.deDDIN EN 491Concrete roofing tiles and fittings for roof covering and wall cladding Test methodsEnglish translation of DIN EN 491:2011-11Dach- und Formsteine aus Beton fr Dcher und Wandbekleidungen PrfverfahrenEnglische bersetzung von DIN EN 491:2011-11Tuiles et acc
3、essoires en bton pour couverture et bardage Mthodes dessaisTraduction anglaise de DIN EN 491:2011-11SupersedesDIN EN 491:2005-03 andDIN EN 491 Corrigendum1:2007-05www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.10.11 29DIN EN 491:2
4、011-11 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 128 “Roof covering products for discontinuous laying and products for wall cladding” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was
5、the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-02-02 AA Dachsteine aus Beton (SpA to CEN/TC 128/SC 2). Amendments This standard differs from DIN EN 491:2005-03 and DIN EN 491 Corrigendum 1:2007-05 as follows: a) fire protection requirement
6、s have been amended; b) the standard has been editorially revised. Previous editions DIN 1115: 1950-07, 1977-05, 1987-05 DIN EN 491: 1994-05, 2005-03 DIN EN 491 Corrigendum 1: 2007-05 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 491 September 2011 ICS 91.100.30 Supersedes EN 491:2004Englis
7、h Version Concrete roofing tiles and fittings for roof covering and wall cladding - Test methods Tuiles et accessoires en bton pour couverture et bardage -Mthodes dessais Dach- und Formsteine aus Beton fr Dcher und Wandbekleidungen - Prfverfahren This European Standard was approved by CEN on 4 Augus
8、t 2011. 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 obtai
9、ned 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
10、-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,
11、Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of e
12、xploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 491:2011: EEN 491:2011 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms and definitions .54 Symbols and abbreviations 55 Test methods 55.1 General 55.2 Hanging length and squarenes
13、s of regular front edge tiles .65.2.1 Principle 65.2.2 Apparatus .65.2.3 Procedure .75.2.4 Expression of results 75.2.5 Test report 75.3 Cover width 75.3.1 Principle 75.3.2 Apparatus .85.3.3 Procedure .85.3.4 Expression of results 95.3.5 Test report 95.4 Flatness 95.4.1 Principle 95.4.2 Apparatus .9
14、5.4.3 Procedure 105.4.4 Expression of results . 115.4.5 Test report . 115.5 Mass . 115.5.1 Principle . 115.5.2 Apparatus 115.5.3 Conditioning 115.5.4 Procedure 115.5.5 Expression of results . 115.5.6 Test report . 115.6 Mechanical resistance (transverse strength) 115.6.1 Principle . 115.6.2 Apparatu
15、s 125.6.3 Conditioning of tiles . 125.6.4 Procedure 135.6.5 Recording of test results . 155.6.6 Test report . 155.7 Water impermeability . 155.7.1 Principle . 155.7.2 Apparatus and materials 155.7.3 Conditioning 165.7.4 Procedure 175.7.5 Expression of results . 175.7.6 Test report . 175.8 Freeze-tha
16、w resistance 175.8.1 Principle . 175.8.2 Apparatus 17DIN EN 491:2011-11 EN 491:2011 (E) 3 5.8.3 Preparation of test samples . 175.8.4 Procedure . 185.8.5 Expression of results 185.8.6 Test report 195.9 Nib support 195.9.1 Principle 195.9.2 Apparatus . 195.9.3 Procedure . 195.9.4 Expression of result
17、s 195.9.5 Test report 195.10 Reaction to fire performance in accordance with EN 13823 . 215.10.1 Principle 215.10.2 Test specimen assembly 215.10.3 Laying the tiles in the test specimen assembly . 215.10.4 Closing the gaps in tile specimens between the two wings . 22Bibliography 27DIN EN 491:2011-11
18、 EN 491:2011 (E) 4 Foreword This document (EN 491:2011) 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 standa
19、rd, either by publication of an identical text or by endorsement, at the latest by March 2012, and conflicting national standards shall be withdrawn at the latest by March 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN
20、and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 491:2004. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria,
21、 Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN
22、EN 491:2011-11 EN 491:2011 (E) 5 1 Scope This European Standard specifies test methods for concrete roofing tiles and fittings conforming to EN 490, for assembly into pitched roof covering or external wall cladding or internal wall lining cladding. 2 Normative references The following referenced doc
23、uments are indispensable for the application 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 490:2004, Concrete roofing tiles and fittings for roof covering and wall c
24、ladding Product specifications EN 13162:2008, Thermal insulation products for buildings Factory made mineral wool (MW) products Specification EN 13238:2010, Reaction to fire tests for building products Conditioning procedures and general rules for selection of substrates EN 13501-1:2007+A1:2009, Fir
25、e classification of construction products and building elements - Part 1: Classification using data from reaction to fire tests EN 13823:2010, Reaction to fire tests for building products Building products excluding floorings exposed to the thermal attack by a single burning item 3 Terms and definit
26、ions For the purposes of this document, the terms and definitions given in EN 490:2004 apply. 4 Symbols and abbreviations l1hanging length of a tile as defined in Figures 1a) and 1c), in millimetres; l2,l3hanging edge lengths of a tile as defined in Figure 1.b), in millimetres; cwcover width of one
27、tile, in millimetres; cwccover width closed up value of 10 tiles, in millimetres; cwdcover width drawn out value of 10 tiles, in millimetres; d profile depth of a tile, in millimetres; x angle at which test tiles are hung as defined in Figure 1a), in degrees. 5 Test methods 5.1 General Where other t
28、est methods are used for factory production control (FPC) a satisfactory statistical correlation with the test methods specified in this document shall be demonstrated. DIN EN 491:2011-11 EN 491:2011 (E) 6 5.2 Hanging length and squareness of regular front edge tiles 5.2.1 Principle Tiles are hung f
29、rom steel battens and measured to establish hanging length and also the squareness of regular front edge tiles. 5.2.2 Apparatus 5.2.2.1 Steel battens to support the tile (see Figure 1). l 1Xa) x = 20 to 70 l2l3b) Tiles with nominally constant hanging length l1= (l2+ l3)/2 l1c) Tiles with regularly v
30、arying hanging length l1= Hanging length measured at lowest point Figure 1 Test method for hanging length DIN EN 491:2011-11 EN 491:2011 (E) 7 5.2.3 Procedure 5.2.3.1 Tiles with nominally constant hanging length Hang the tile at an angle of 20 to 70 on a steel batten (see Figure 1a). After physicall
31、y removing any burrs and/or other irregularities, measure from the top face of the batten to the lower front edge of the tile at the sides (see Figure 1b), excluding the interlocking sections in the case of tiles with sidelocks. 5.2.3.2 Tiles with regularly varying hanging length Hang the tile at an
32、 angle of 20 to 70 on a steel batten (see Figure 1a). After physically removing any burrs and/or other irregularities, measure from the top face of the batten to the lowest point of the tile (see Figure 1c). 5.2.4 Expression of results 5.2.4.1 Tiles with nominally constant hanging length Record the
33、values l2and l3to the nearest millimetre and calculate the average per tile l1to the nearest millimetre. 5.2.4.2 Tiles with regularly varying hanging length Record the measured value l1to the nearest millimetre. 5.2.5 Test report 5.2.5.1 Tiles with nominally constant hanging length The test report s
34、hall include the following: a) value l2 to the nearest millimetre; b) value l3 to the nearest millimetre; c) the average per tile. l1. to the nearest millimetre; d) reference to this document, i.e. EN 491. 5.2.5.2 Tiles with regularly varying hanging length The test report shall include the followin
35、g: a) value l1 to the nearest millimetre; b) reference to this document, i.e. EN 491. 5.3 Cover width 5.3.1 Principle Tiles are hung or laid on a steel batten to determine their cover width. DIN EN 491:2011-11 EN 491:2011 (E) 8 5.3.2 Apparatus 5.3.2.1 Steel batten to support 11 tiles. This may be ho
36、rizontal or pitched up to 70. 5.3.3 Procedure 5.3.3.1 Interlocking tiles Hang or lay 11 tiles of the same cover width with their locks engaged, following the manufacturers recommendations. Taking care that the interlocking parts of the tiles do not lift or disengage, pull the tiles apart to their ma
37、ximum coverage. Measure the drawn-out value cwdover 10 tiles to the nearest millimetre (see Figure 2a). Taking care that the interlocking parts of the tiles do not lift or disengage, push the tiles together to their minimum coverage. Measure the closed up value cwcover 10 tiles to the nearest millim
38、etre (see Figure 2b). cwda) cwd= cover width of 10 tiles drawn out cwcb) cwc= cover width of 10 tiles closed up Figure 2 Testing interlocking tiles for cover width 5.3.3.2 Non-interlocking tiles Hang or lay 10 tiles of the same nominal cover width on a batten following the manufacturers recommendati
39、ons. Push the tiles together. Measure the width of the 10 tiles to the nearest millimetre. DIN EN 491:2011-11 EN 491:2011 (E) 9 5.3.4 Expression of results 5.3.4.1 Interlocking tiles Calculate to the nearest millimetre either: a) the mean drawn out value cwd/10 and the mean closed up value cwc/10; o
40、r b) the mean cover width (cwd+ cwc)/20. 5.3.4.2 Non-interlocking tiles Calculate the mean cover width cwc/10 to the nearest millimetre. 5.3.5 Test report 5.3.5.1 Interlocking tiles The test report shall include the following: a) the mean drawn out value cwd/10 and the mean closed up value cwc/10 to
41、 the nearest millimetre; or b) the mean cover width (cwd+ cwc)/20 to the nearest millimetre; and c) reference to this document, i.e. EN 491. 5.3.5.2 Non-interlocking tiles The test report shall include the following: a) the mean cover width cwc/10 to the nearest millimetre; b) reference to this docu
42、ment, i.e. EN 491. 5.4 Flatness 5.4.1 Principle Tiles are laid on a flat plate to determine their flatness. 5.4.2 Apparatus 5.4.2.1 Flat metal surface or two co-planer flat metal plates (see Figure 3). DIN EN 491:2011-11 EN 491:2011 (E) 10 Dimensions in millimetres 1323Key 1 Flat surface 3 Diameter
43、3 mm or cw/100 2 Two co-planer flat metal plates Figure 3 Testing flatness 5.4.2.2 Steel round bar, with a diameter of 3 mm or cw/100 to the nearest millimetre, whichever is the greater. 5.4.3 Procedure Place the tile on a flat level surface or two co-planer flat metal bars with the nibs projecting,
44、 as shown in Figure 3. Hold the tile to ensure that the head of the tile is in contact with the surface. Using the steel bar (without lifting the tile), check whether any gap between the lower front edge of the tile and the measuring surface at any nominal contact point, is greater than the diameter
45、 of the steel bar. DIN EN 491:2011-11 EN 491:2011 (E) 11 5.4.4 Expression of results Record for each tile whether there is a gap equal to or greater than the diameter of the steel bar. 5.4.5 Test report The test report shall include the following: a) the number of tiles for which there is a gap equa
46、l to or greater than the diameter of the steel bar; b) reference to this document, i.e. EN 491. 5.5 Mass 5.5.1 Principle Tiles are conditioned and then weighed to determine their mass. 5.5.2 Apparatus 5.5.2.1 Weighing device, capable of measuring to the nearest 25 g. 5.5.3 Conditioning Store the til
47、es to be tested at 15 C to 30 C and at a minimum of 30 % relative humidity for at least 24 h in such a manner that air is free to circulate to all sides of each tile. 5.5.4 Procedure Weigh each tile to the nearest 25 g. 5.5.5 Expression of results Record the values measured and calculate the mean ma
48、ss of the tiles in the sample to the nearest 25 g. 5.5.6 Test report The test report shall include the following: a) the mass of each tile to the nearest 25 g; b) the mean mass of the tiles in the sample to the nearest 25 g; c) reference to this document, i.e. EN 491. 5.6 Mechanical resistance (transverse strength) 5.6.1 Principle Tiles are placed in a test machine and a load is applied in order to determine the mechanical resistance of the tiles. DIN EN 491:2011-11 EN 491:2011 (E) 12 5.6.2 Apparatus 5.6.2.1 Test machine with two lower rounded metal bearers in a horizontal pl
