1、BRITISH STANDARD BSENISO 10545-5:1998 Incorporating Technical Corrigendum 1:1996 Ceramic tiles Part 5: Determination of impact resistance by measurement of coefficient of restitution The European Standard EN ISO 10545-5:1997 has the status of a British Standard ICS 91.100.20BSENISO10545-5:1998 This
2、British Standard, having been prepared under the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes into effect on 15 March 1998 BSI 04-1999 ISBN 0 580 28993 1 National foreword This British Standard is the English language version of EN ISO 10
3、545-5:1997 Ceramic tiles Part 5: Determination of impact resistance by measurement of coefficient of restitution. It is a new test and does not supersede a Part of BS6431. This Part is referred to in the specification for ceramic tiles, ISO 13006, which includes requirements for all the tiles standa
4、rdized in BS643-1 to BS643-9. The UK participation in its preparation was entrusted to Technical CommitteeB/539, Ceramic tiles and other rigid tiling, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on t
5、he interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Stand
6、ards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standar
7、d does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an
8、 inside front cover, pages i and ii, theEN ISO title page, page2, the ISO title page, page ii, pages1to4, aninsideback cover and aback cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front
9、 cover. Amendments issued since publication Amd. No. Date CommentsBSENISO10545-5:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 Foreword ii Text ofISO 10545-5 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM ENISO10545-5 September 1997 ICS 91.100 Descripto
10、rs: See ISO document English version Ceramic tiles Part 5: Determination of impact resistance by measurement of coefficient of restitution (ISO10545-5:1996, including Technical Corrigendum1:1996) Carreaux et dalles cramiques Partie 5: Dtermination de la rsistance au chocpar mesurage du coefficient d
11、e restitution(ISO10545-5:1996, RectificatifTechnique 1:1996 inclus) Keramische Fliesen und Platten Teil5:Bestimmung der Schlagfestigkeit durchMessung des Rckprallkoeffizienten (ISO10545-5:1996, einschlielich TechnischeKorrektur 1:1996) This European Standard was approved by CEN on 1997-08-23. CEN me
12、mbers 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 applica
13、tion to the Central Secretariat or to any CEN member. The European Standards exist 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 Central Secretariat has the
14、same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committe
15、e for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10545-5:1997 EENISO10545-5:1997 B
16、SI 04-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC 189 “Ceramic tiles” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC 67 “Ceramic tiles”, the secretariat of which is held
17、by UNI. EN ISO 10545 consists of the following parts, under the common title, “Ceramic tiles”: Part 1: Sampling and basis for acceptance; Part 2: Determination of dimensions and surface quality; Part 3: Determination of water absorption, apparent porosity, apparent relative density and bulk density;
18、 Part 4: Determination of modulus of rupture and breaking strength; Part 5: Determination of impact resistance by measurement of coefficient of restitution; Part 6: Determination of resistance to deep abrasion for unglazed tiles; Part 7: Determination of resistance to surface abrasion for glazed til
19、es; Part 8: Determination of linear thermal expansion; Part 9: Determination of resistance to thermal shock; Part 10: Determination of moisture expansion; Part 11: Determination of crazing resistance for glazed tiles; Part 12: Determination of frost resistance; Part 13: Determination of chemical res
20、istance; Part 14: Determination of resistance to stains; Part 15: Determination of lead and cadmium given off by glazed tiles; Part 16: Determination of small colour differences; Part 17: Determination of coefficient of friction. This European Standard shall be given the status of a national standar
21、d, either by publication of an identical text or by endorsement, at the latest by March 1998, and conflicting national standards shall be withdrawn at the latest by March1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound
22、 to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO10545-
23、5:1996, including Technical Corrigendum1:1996 has been approved by CEN as a European Standard without any modification. Contents Page Foreword 2 1 Scope 1 2 Definition 1 3 Principle 1 4 Apparatus 1 5 Test specimens 1 6 Procedure 3 7 Expression of results 4 8 Calibration 4 9 Test report 4 Annex A (in
24、formative) Determination of the waterabsorption at the surface of concrete blocks or slabs Inside back cover Figure 1 Ball-release apparatus 2 Figure 2 Grading curves for gravel sandofmaximum particle size8mm 3 Figure A.1 Apparatus for measuring thesurfacewater absorption of concrete blocks or slabs
25、 Inside back coverENISO10545-5:1997 ii 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 bod
26、y 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 Electrote
27、chnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote
28、. International Standard ISO10545-5 was prepared by Technical Committee ISO/TC 189, Ceramic tile. ISO10545 consists of the following parts, under the general title Ceramic tiles: Part 1: Sampling and basis for acceptance; Part 2: Determination of dimensions and surface quality; Part 3: Determination
29、 of water absorption, apparent porosity, apparent relative density and bulk density; Part 4: Determination of modulus of rupture and breaking strength; Part 5: Determination of impact resistance by measurement of co-efficient of restitution; Part 6: Determination of resistance to deep abrasion for u
30、nglazed tiles; Part 7: Determination of resistance to surface abrasion for glazed tiles; Part 8: Determination of linear thermal expansion; Part 9: Determination of resistance to thermal shock; Part 10: Determination of moisture expansion; Part 11: Determination of crazing resistance for glazed tile
31、s; Part 12: Determination of frost resistance; Part 13: Determination of chemical resistance; Part 14: Determination of resistance to stains; Part 15: Determination of lead and cadmium given off by glazed tiles; Part 16: Determination of small colour differences; Part 17: Determination of coefficien
32、t of friction. Annex A of this part of ISO10545 is for information only. Descriptors: Ceramics, tiles, tests, impact tests, determination, shock resistance, test equipment.ENISO10545-5:1997 BSI 04-1999 1 1 Scope This part of ISO10545 specifies a test method for determining the impact resistance of c
33、eramic tiles by measuring the coefficient of restitution. 2 Definition For the purpose of this part of ISO10545, the following definition applies. 2.1 coefficient of restitution between two impacting bodies, e relative velocity of departure divided by the relative velocity of approach 3 Principle De
34、termination of the coefficient of restitution by dropping a steel ball from a fixed height onto the test specimen and measuring the height of rebound. 4 Apparatus 4.1 Chrome steel ball, of diameter (190,05) mm. 4.2 Ball-release apparatus, (seeFigure 1), consisting of a heavy steel base set on levell
35、ing screws with a vertical steel bar to which is attached an electromagnet, a guide tube and a test unit support. The test unit is clamped firmly in a position so that when the steel ball drops it impinges on the centre of the horizontal tile surface. A clamping device is shown in Figure 1, but any
36、suitable system may be used. 4.3 Electronic timing device (optional), which, by means of a microphone, measures the time interval between the first and second impacts when the ball is dropped onto the test specimen. 5 Test specimens 5.1 Number of test specimens A minimum of five pieces in dimensions
37、75mm75mm cut from five tiles. Tiles with facial dimensions less than75mm may be used. 5.2 Brief description of test units The test units consist of test specimens fixed to mature concrete blocks by means of rigid epoxide resin adhesive. 5.3 Concrete blocks The dense concrete blocks shall be of appro
38、ximate dimensions75mm75mm50mm and prepared in moulds of this size, or alternatively cut from large concrete slabs. The following method describes the preparation of dense concrete blocks made from gravel/sand, but other aggregates may be used and then the surface water absorption test may not be app
39、ropriate. Concrete blocks or slabs may be made by adding one part by mass of Portland cement to4.5 to5.5 parts by mass of aggregate. The aggregate shall be gravel sand of0 to8mm particle size with a continuous grading curve between the limits A and B in Figure 2. The total fines of particle size bel
40、ow0,125mm in the mix of concrete, including Portland cement, should be about500kg per cubic metre. The water/cement ratio shall be0,5. Thoroughly mix the constituents in a mechanical mixer and trowel into moulds of the required size. Compact for90s at50Hz on a vibrating table. Condition the concrete
41、 slabs for48h at(232)C and (505)% relative humidity before removing them from the moulds. Thoroughly rinse off any mould release agent. Throughout the remaining conditioning, the slabs shall be held vertically, leaving gaps between them. Immerse in water at(202)C for6d, then in air at(232)C and(505)
42、% relative humidity for21d. The assembly face of the concrete shall have an absorption of surface water after4h in the range of0,5cm 3to1,5cm 3when three specimens are tested in accordance with the method shown in Annex A and Figure A.1. Blocks subsequently cut from concrete slabs by wet methods req
43、uire a minimum drying period of24h at(232)C and(505)% relative humidity before assembly in test units. 5.4 Epoxide resin adhesive The adhesive shall not contain ingredients which increase flexibility. A suitable adhesive consists of2 parts by mass of an epoxide resin, which is a reaction product of
44、epichlorhydrin and diphenol isopropane and one part by mass of a curing agent which is an activated amine. Pure silica filler of average particle size5,54m, measured by the Coulter Counter or other similar methods, is thoroughly mixed with the other constituents in a proportion which is just suffici
45、ent to form a mixture that does not flow.ENISO 10545-5:1997 2 BSI 04-1999 Figure 1 Ball-release apparatusENISO10545-5:1997 BSI 04-1999 3 5.5 Assembly of test units Spread epoxide resin adhesive in a layer about2mm thick over the upper surface of a mature concrete block in a uniform layer. Place thre
46、e steel or plastics spacer pegs, of diameter1,5mm, in the centre of three of the sides so that each peg projects enough to allow it to be removed later. Press a test specimen, with the proper face upwards, into the adhesive and scrape off excess adhesive from the sides before gently removing the thr
47、ee spacer pegs. Allow to stand at a temperature of(232)C and at(505)% relative humidity for3d prior to testing. If tiles of less than75mm75mm facial dimensions are to be tested, place one tile so that its centre coincides with the centre of the surface of the block. Use cut pieces of tile to complet
48、e the75mm75mm area. 6 Procedure Adjust the ball-release apparatus (4.2) by means of the levelling screws so that the steel bar is vertical. Place the test unit under the electromagnet so that a steel ball (4.1) released from the electromagnet will fall onto the centre of a test unit clamped in posit
49、ion. Figure 2 Grading curves for gravel sand of maximum particle size8mmENISO 10545-5:1997 4 BSI 04-1999 Place a test unit in the support with the proper face of the test specimen upwards and horizontal. Release the steel ball from a height of1m above the proper face of the test unit and allow it to bounce. Measure the height of rebound to1mm by a suitable detector and calculate the coefficient of restitution (e). Alternatively, allow the ball to bounce
