1、June 2012 Translation by DIN-Sprachendienst.English price group 7No 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).ICS 91
2、.100.15!$|to“1898176www.din.deDDIN EN 14617-5Agglomerated stone Test methods Part 5: Determination of freeze and thaw resistanceEnglish translation of DIN EN 14617-5:2012-06Knstlich hergestellter Stein Prfverfahren Teil 5: Bestimmung der Frost-Tau-WechselbestndigkeitEnglische bersetzung von DIN EN 1
3、4617-5:2012-06Pierre agglomre Mthodes dessai Partie 5: Dtermination de la rsistance au gel et au dgelTraduction anglaise de DIN EN 14617-5:2012-06SupersedesDIN EN 14617-5:2005-06www.beuth.deDocument comprises 9 pagesIn case of doubt, the German-language original shall be considered authoritative.05.
4、12 DIN EN 14617-5:2012-06 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 246 “Natural stones” (Secretariat: UNI, Italy). At present a DIN committee does not exist for this standard since the parties concerned have not shown an
5、y interest in work on the subject. Amendments This standard differs from DIN EN 14617-5:2005-06 as follows: a) in Suclause 6.2 the conditioning prior to testing has been modified; b) in Subclause 7.1 “Water saturation” the minimum immersion time has been deleted; c) in Clause 8 “Expression of result
6、s” the formula used to calculate the change in flexural strength has been modified; d) the standard has been editorially revised. Previous editions DIN EN 14617-5: 2005-06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14617-5 April 2012 ICS 91.100.15 Supersedes EN 14617-5:2005English Version
7、Agglomerated stone - Test methods - Part 5: Determination of freeze and thaw resistance Pierre agglomre - Mthodes dessai - Partie 5: Dtermination de la rsistance au gel et au dgel Knstlich hergestellter Stein - Prfverfahren - Teil 5: Bestimmung der Frost-Tau-Wechselbestndigkeit This European Standar
8、d was approved by CEN on 9 March 2012. 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
9、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 l
10、anguage 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,
11、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B
12、-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14617-5:2012: EEN 14617-5:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms, definitions and symbols .43.1 Terms and definitions .43.2 Sy
13、mbols 44 Principle 45 Apparatus .46 Preparation of the specimens 56.1 Sampling .56.2 Conditioning before testing 57 Test procedure .57.1 Water saturation.57.2 Freeze/thaw cycling .57.3 Flexural strength determination .58 Expression of results 59 Test report 6Bibliography 7DIN EN 14617-5:2012-06 EN 1
14、4617-5:2012 (E) 3 Foreword This document (EN 14617-5:2012) has been prepared by Technical Committee CEN/TC 246 “Natural stones”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsem
15、ent, at the latest by October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. 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 identify
16、ing any or all such patent rights. This document supersedes EN 14617-5:2005. 6.2, 7.3 and Clause 8 have been modified since the last edition of this European Standard. This European Standard is one of a series of standards for test methods for agglomerated stones which includes the following: EN 146
17、17-1, Agglomerated stone Test methods Part 1: Determination of apparent density and water absorption EN 14617-2, Agglomerated stone Test methods Part 2: Determination of flexural strength (bending) EN 14617-4, Agglomerated stone Test methods Part 4: Determination of the abrasion resistance EN 14617-
18、5, Agglomerated stone Test methods Part 5: Determination of freeze and thaw resistance EN 14617-6, Agglomerated stone Test methods Part 6: Determination of thermal shock resistance EN 14617-8, Agglomerated stone Test methods Part 8: Determination of resistance to fixing (dowel hole) EN 14617-9, Aggl
19、omerated stone Test methods Part 9: Determination of impact resistance EN 14617-10, Agglomerated stone Test methods Part 10: Determination of chemical resistance EN 14617-11, Agglomerated stone Test methods Part 11: Determination of linear thermal expansion coefficient EN 14617-12, Agglomerated ston
20、e Test methods Part 12: Determination of dimensional stability EN 14617-13, Agglomerated stone Test methods Part 13: Determination of electrical resistivity EN 14617-15, Agglomerated stone Test methods Part 15: Determination of compressive strength EN 14617-16, Agglomerated stone Test methods Part 1
21、6: Determination of dimensions, geometric characteristics and surface quality of modular tiles According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus
22、, 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, Turkey and the United Kingdom. DIN EN 14617-5:2012-06 EN 14617
23、-5:2012 (E) 4 1 Scope This European Standard specifies a method to assess the effect of freeze/thaw cycles on agglomerated stones. It contains provisions for a technological test to be carried out to assess the effect of freeze/thaw cycles on the flexural strength characteristics of the stone. 2 Nor
24、mative 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
25、) applies. EN 14617-2:2008, Agglomerated stone Test methods Part 2: Determination of flexural strength (bending) 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the following term and definition applies. 3.1.1 freeze/thaw resistance ability of the agglom
26、erated stone product saturated by water to resist the effect of freeze/thaw cycling 3.2 Symbols KMf 25coefficient of freeze/thaw resistance in flexural strength (after 25 freeze/thaw cycles); Rf flexural strength average value (MPa) of dried, unfrosted specimens; RMf flexural strength average value
27、(MPa) of specimens after 25 freeze/thaw cycles. 4 Principle The principle of this test method is the determination of the ratio between the flexural strength of specimens after 25 freeze/thaw cycles and that of unfrosted specimens. One freeze/thaw cycle includes a freezing part, when a water saturat
28、ed specimen is loaded into a freezer (temperature ( 20 5) C), and a thawing part, when a frosted specimen is immersed in tap water (temperature (20 5) C). 5 Apparatus 5.1 A freezing chamber of sufficient capacity to hold the required number of specimens, possibly with an automatic control system to
29、programme the freezing and thawing cycles within the chamber, capable of maintaining the temperature at (- 20 5) C. 5.2 A temperature recording system or thermometer capable of measuring temperatures to 0,1 C. 5.3 A linear measuring device with an accuracy of 0,5 mm (for the flexural measurement). 5
30、.4 A desiccator. DIN EN 14617-5:2012-06 EN 14617-5:2012 (E) 5 5.5 A ventilated oven capable of maintaining a temperature of (40 5) C. 5.6 Tap water. 6 Preparation of the specimens 6.1 Sampling 6.1.1 The sampling is not the responsibility of the test laboratory, except when specially requested. 6.1.2
31、 For the tests at least 5 specimens shall be selected from a homogeneous batch, having surface finish, dimension and tolerances according to EN 14617-2:2008, 6.2.2. Two sets of specimens are required: one to be tested by determination of flexural strength according to EN 14617-2 after being subjecte
32、d to the freeze/thaw cycles; the other to be tested by determination of flexural strength according to EN 14617-2 without freeze/thaw cycling. Each set shall be randomly selected from the body of the batch to be tested. 6.2 Conditioning before testing The specimens shall be conditioned at room tempe
33、rature (40 5) C for (24 2) h. Constant mass is reached when the difference between two weightings carried out (24 2) h apart is no greater than 0,1 % of the first of the two masses. After drying and prior to testing, the specimens shall be stored at (20 5) C. Once thermal equilibrium is reached, the
34、 test shall be performed within 24 h. 7 Test procedure 7.1 Water saturation Specimens for freeze/thaw cycling are immersed completely in tap water at (20 5) C to obtain constant mass, i.e. difference 0,1 mass % by consecutive weighing/24 h. 7.2 Freeze/thaw cycling Water saturated specimens are place
35、d into the freezer. The specimens should be loaded into the freezer in a wire grate, so as not to touch each other or the freezer walls. When (- 20 5) C temperature is reached, the specimens shall be placed in the freezer for at least 4 h. Then the frosted specimens are unloaded and immersed in tap
36、water at (20 5) C. When this temperature is reached, the specimens shall be immersed for at least 2 h. 25 of these freeze/thaw cycles have to be performed. After the last cycle is finished, the specimens are removed from the water. 7.3 Flexural strength determination After 25 freeze/thaw cycles and
37、after conditioning according to 6.2, the flexural strength test is performed on the samples according to EN 14617-2. 8 Expression of results The change in performance is determined from the individual results using the following formula: DIN EN 14617-5:2012-06 EN 14617-5:2012 (E) 6 100fff25=RRMKM9 T
38、est report The test report shall contain the following information: a) unique identification number of the report; b) number and year of issue of this European Standard, i.e. EN 14617-5:2012; c) name and address of the test laboratory, and the address where the test was carried out if different from
39、 the test laboratory; d) name and address of the client; e) date of delivery of the sample or of the specimens; f) date when the specimens were prepared (if relevant) and the date of testing; g) number of specimens in the sample; h) dimensions of the specimens; i) freeze and thaw cycle; j) statement
40、 on measurement uncertainty (where appropriate); k) all deviations from the standard and their justification; l) remarks. The test report shall contain the signature(s) and role(s) of the person(s) responsible for the testing and the date of issue of the report. It shall also state that the report s
41、hall not be partially reproduced without the written consent of the test laboratory. It is the responsibility of the client to supply the following information: name of the supplier; name of the person or organization which carried out the sampling; surface finish of the specimens (if relevant to the test); nature of the binders. DIN EN 14617-5:2012-06 EN 14617-5:2012 (E) 7 Bibliography 1 EN 12440, Natural stone Denomination criteria 2 EN 14618, Agglomerated stone Terminology and classification DIN EN 14617-5:2012-06
