DIN EN 14617-6-2012 Agglomerated stone - Test methods - Part 6 Determination of thermal shock resistance German version EN 14617-6 2012《烧结石料 试验方法 第6部分 耐热冲击性测定》.pdf

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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!$|tn“1898175www.din.deDDIN EN 14617-6Agglomerated stone Test methods Part 6: Determination of thermal shock resistanceEnglish translation of DIN EN 14617-6:2012-06Knstlich hergestellter Stein Prfverfahren Teil 6: Bestimmung der TemperaturwechselbestndigkeitEnglische bersetzung von DIN EN 146

3、17-6:2012-06Pierre agglomre Mthodes dessai Partie 6: Dtermination de la rsistance au choc thermiqueTraduction anglaise de DIN EN 14617-6:2012-06SupersedesDIN EN 14617-6:2005-06www.beuth.deDocument comprises 10 pagesIn case of doubt, the German-language original shall be considered authoritative.05.1

4、2 DIN EN 14617-6:2012-06 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 any

5、 interest in work on the subject. Amendments This standard differs from DIN EN 14617-6:2005-06 as follows: a) in Suclause 6.3 the method used for drying the test specimens has been modified; b) the standard has been editorially revised. Previous editions DIN EN 14617-6: 2005-06 EUROPEAN STANDARD NOR

6、ME EUROPENNE EUROPISCHE NORM EN 14617-6 April 2012 ICS 91.100.15 Supersedes EN 14617-6:2005English Version Agglomerated stone - Test methods - Part 6: Determination of thermal shock resistance Pierre agglomre - Mthodes dessai - Partie 6: Dtermination de la rsistance au choc thermique Knstlich herges

7、tellter Stein - Prfverfahren - Teil 6: Bestimmung der Temperaturwechselbestndigkeit This European Standard 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 n

8、ational 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

9、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, Cypru

10、s, 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZA

11、TION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14617-6:2012: EEN 14617-6:2012 (E) 2 Contents Page Forewor

12、d 31 Scope 42 Normative references 43 Symbols 44 Principle 45 Apparatus .46 Preparation of specimen .56.1 Sampling .56.2 Dimensions of the test specimens.56.3 Drying the specimens .57 Procedure .57.1 Control measurements before cycling 57.2 Description of the cycles 57.3 Control measurements after c

13、ycling .68 Expression of results 69 Test report 6Bibliography 8DIN EN 14617-6:2012-06 EN 14617-6:2012 (E) 3 Foreword This document (EN 14617-6:2012) 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 th

14、e status of a national standard, either by publication of an identical text or by endorsement, 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 t

15、he 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 14617-6:2005. 6.3 has been modified since the last edition of this European Standard. This European Standard is one of a series of standards for te

16、st methods for agglomerated stones which includes the following: EN 14617-1, 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

17、Test methods Part 4: Determination of the abrasion resistance EN 14617-5, 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

18、 8: Determination of resistance to fixing (dowel hole) EN 14617-9, Agglomerated 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

19、 of linear thermal expansion coefficient EN 14617-12, Agglomerated stone 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 c

20、ompressive strength EN 14617-16, Agglomerated stone Test methods Part 16: 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 implem

21、ent 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, Romania, Slovakia, Slovenia, Spain, Sweden, Swit

22、zerland, Turkey and the United Kingdom. DIN EN 14617-6:2012-06 EN 14617-6:2012 (E) 4 1 Scope This European Standard specifies a method to assess possible modifications of agglomerated stones under the effect of sudden changes in temperature (thermal shock) by immersion in hot water. 2 Normative refe

23、rences 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) applies.

24、EN 14617-2:2008, Agglomerated stone Test methods Part 2: Determination of flexural strength (bending) 3 Symbols For the purposes of this document, the following symbols apply. m0mass of the dried specimen before the test, in g; mfmass of the dried specimen after the test, in g; m % change in the mas

25、s of the dried specimens, as a percentage; Rf flexural strength average value of dried, reference specimens, in MPa; Rsf flexural strength average value of specimens after 20 cycles, in MPa; Rf, 20coefficient of thermal shock resistance as change in flexural strength (as a percentage after 20 cycles

26、). 4 Principle After drying at (40 5) C until constant mass is attained, the specimens are subjected to successive cycles, each formed by thermal shock at (70 5) C followed by immediate immersion in water at (15 5) C. After 20 cycles, the specimens are visually inspected and compared with the refere

27、nce specimen, and all visible alterations recorded. Finally, the mass and flexural strength changes of specimens after 20 cycles will be determined in comparison with the values of the same quantities of reference specimens. NOTE The selected test temperature of 70 C is for flooring and wall applica

28、tions. 5 Apparatus 5.1 A ventilated oven capable of maintaining a temperature of (70 5) C. 5.2 A tank equipped with a cooling system capable of maintaining a temperature of (15 5) C and a flat base comprising small non-oxidising and non-absorbent supports for the specimens. 5.3 A weighing instrument

29、 with an accuracy of at least 0,01 % of the mass to be weighed. 5.4 A desiccator. DIN EN 14617-6:2012-06 EN 14617-6:2012 (E) 5 5.5 Demineralised water. 5.6 A linear measuring device with an accuracy of 0,5 mm (for the flexural measurement). 6 Preparation of specimen 6.1 Sampling Sampling is not the

30、responsibility of the test laboratory except where specially requested. Two sets of at least 7 test specimens which are considered representative of the body of agglomerated stone being tested shall be selected from a homogeneous batch. One specimen set is used as a control: both the mass and flexur

31、al strength according to EN 14617-2 are determined before the thermal shock test. For the other specimen set, both the mass and flexural strength according to EN 14617-2 shall be determined after the thermal shock cycles. The specimens should be carefully observed and all alterations, such as cracks

32、, holes, etc., noticed before and after the thermal shock cycles 6.2 Dimensions of the test specimens The test specimens shall be randomly selected from a homogeneous batch, having surface finish, dimension and tolerances according to EN 14617-2:2008, 6.2.2. 6.3 Drying the specimens The specimens sh

33、all be conditioned at room temperature (20 5) C for (24 2) h. For agglomerated stones with cement or cement and polymer as binder, the specimens shall be dried at (40 5) C to a constant mass. Constant mass is reached when the difference between two weighings carried out (24 2) h apart is no greater

34、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 test shall be performed within 24 h. 7 Procedure 7.1 Control measurements before cycling The dried specimens shall be visually inspected a

35、nd compared to the reference specimen. All alterations, such as cracks, holes, etc., shall be recorded. Then, their mass (m0) shall be measured and the flexural strength determined according to EN 14617-2. This is to be regarded as the initial value (Rf). 7.2 Specification of the cycles The dried sp

36、ecimens shall be subjected to changes of temperature according to the following procedure: (18 1) h in a ventilated oven at (70 5) C, followed immediately by (6 0,5) h completely submerged in distilled or demineralised water with a temperature of (15 5) C. Both in the oven and in the water container

37、, the specimens shall be placed on the supports at a distance of at least 50 mm from one another and from the wall. DIN EN 14617-6:2012-06 EN 14617-6:2012 (E) 6 In the water container, the specimens shall be placed on supports located at the bottom of the container which has been filled with distill

38、ed or demineralised water to such a height that the water level above the specimens is (60 10) mm. The procedure described above which constitutes one cycle shall be repeated for 20 cycles. 7.3 Control measurements after cycling After the 20thcycle, the specimens shall be dried to constant mass at (

39、40 5) C according to 6.3 and weighed (mf). They shall then be visually inspected and compared to the reference specimen. All alterations shall be recorded. Finally, the mass (mf) shall be measured and the flexural strength (Rsf) determined according to EN 14617-2. 8 Expression of results For each sp

40、ecimen: 8.1 Describe the modifications observed visually by comparison with the reference specimen, such as: change of colour, appearance of spots; swelling; cracking; scaling or exfoliation. 8.2 Calculate the change in mass for each sample and then calculate the mean value to the nearest 0,01 % acc

41、ording to the following formula: 1000f0=mmmm%(1) 8.3 Calculate the change in flexural strength for each sample and then calculate the mean value to the nearest 0,1 % according to the following formula: 100%fsfff,20=RRRR(2) 9 Test report The test report shall contain the following information: a) uni

42、que identification number of this report; b) number and year of issue of this European Standard, i.e. EN 14617-6:2012; c) name and address of testing laboratory, and the address where the test was carried out if it is different from the test laboratory; d) name and address of client; e) date of deli

43、very of the samples; DIN EN 14617-6:2012-06 EN 14617-6:2012 (E) 7 f) date when the specimens were prepared and the date of testing; g) number of specimens in the sample; h) dimensions of the specimens; i) selected test temperature (70 C); j) any observed alteration for each specimen; k) percentage c

44、hange in mass for each specimen and the mean percentage change in mass; l) percentage change in flexural strength for each specimen and the mean percentage change in flexural strength; m) statement on measurement uncertainty (where appropriate); n) all deviation from the standard and their justifica

45、tion; o) remarks. The test report shall contain the signatures and roles of those responsible for the testing and the date of issue of the report. It shall also state that the report shall not be partially reproduced without written consent of the test laboratory. It is the responsibility of the cli

46、ent 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 14617-6:2012-06 EN 14617-6:2012 (E) 8 Bibliography 1 EN 12440, Natural stone Denomination criteria 2 EN 14618, Agglomerated stone Terminology and classification DIN EN 14617-6:2012-06