1、June 2013 Translation by DIN-Sprachendienst.English price group 8No 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 73
2、.020; 91.100.15!%$lx“2017385www.din.deDDIN EN 14066Natural stone test methods Determination of resistance to ageing by thermal shock;English version EN 14066:2013,English translation of DIN EN 14066:2013-06Prfverfahren fr Naturstein Bestimmung des Widerstandes gegen Alterung durch Wrmeschock;Englisc
3、he Fassung EN 14066:2013,Englische bersetzung von DIN EN 14066:2013-06Mthodes dessai pour les pierres naturelles Dtermination de la rsistance au vieillissement acclr par choc thermique;Version anglaise EN 14066:2013,Traduction anglaise de DIN EN 14066:2013-06SupersedesDIN EN 14066:2003-08www.beuth.d
4、eDocument comprises 12 pagesIn case of doubt, the German-language original shall be considered authoritative.05.13 DIN EN 14066:2013-06 2 A comma is used as the decimal marker. National foreword This document (EN 14066:2013) has been prepared by Technical Committee CEN/TC 246 “Natural stones” (Secre
5、tariat: UNI, Italy). The responsible German bodies involved in its preparation were the Normenausschuss Materialprfung (Materials Testing Standards Committee) and the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Joint Committee NA 062-03-11 GA Naturwerkstein; Anford
6、erungen, Prfverfahren und Terminologie. Amendments This standard differs from DIN EN 14066:2003-08 as follows: a) the number and dimensions of the specimens have been modified; b) the temperature for drying the specimens has been modified; c) measurement of the ultrasound pulse velocity according to
7、 EN 14579 and of the open porosity according to EN 1936 has been specified; d) oxidation, change of colour and swelling have been deleted as criteria from the list of visually observed modifications; e) the standard has been editorially revised. Previous editions DIN EN 14066: 2003-08 EUROPEAN STAND
8、ARD NORME EUROPENNE EUROPISCHE NORM EN 14066 March 2013 ICS 73.020; 91.100.15 Supersedes EN 14066:2003English Version Natural stone test methods - Determination of resistance to ageing by thermal shock Mthodes dessai pour les pierres naturelles - Dtermination de la rsistance au vieillissement acclr
9、par choc thermique Prfverfahren fr Naturstein - Bestimmung des Widerstandes gegen Alterung durch Wrmeschock This European Standard was approved by CEN on 19 January 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
10、 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 (E
11、nglish, 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, Belgiu
12、m, 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, Switzerl
13、and, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref.
14、 No. EN 14066:2013: EEN 14066:2013 (E) 2 Contents Page Foreword 3 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Symbols and abbreviations 5 5 Principle 6 6 Apparatus .6 7 Preparation of specimens .6 7.1 Sampling .6 7.2 Dimensions of the test specimens.6 7.3 Putting reference marks
15、on the specimens 6 7.4 Drying the specimens .7 8 Test procedure .7 8.1 Control measurements before cycling 7 8.2 Description of the cycles 7 8.3 Control measurements after cycling .7 9 Expression of results 7 9.1 Visual appearance .7 9.2 Modulus of elasticity .7 9.3 Open porosity .8 9.4 Ultrasound p
16、ulse velocity .8 9.5 Flexural strength 8 10 Test report 8 Bibliography . 10 DIN EN 14066:2013-06 EN 14066:2013 (E) 3 Foreword This document (EN 14066:2013) has been prepared by Technical Committee CEN/TC 246 “Natural stones”, the secretariat of which is held by UNI. This European Standard shall be g
17、iven the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2013, and conflicting national standards shall be withdrawn at the latest by September 2013. Attention is drawn to the possibility that some of the elements of this docume
18、nt 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 14066:2003. The following modifications have been made: The new standard requires the evaluation of the produced decay through both non-
19、destructive and destructive methods. Specimens dimensions have been modified. The normative references have been updated. Test methods for natural stone consist of the following European Standards: EN 1925, Natural stone test methods Determination of water absorption coefficient by capillarity EN 19
20、26, Natural stone test methods Determination of uniaxial compressive strength EN 1936, Natural stone test methods Determination of real density and apparent density, and of total and open porosity EN 12370, Natural stone test methods Determination of resistance to salt crystallisation EN 12371, Natu
21、ral stone test methods Determination of frost resistance EN 12372, Natural stone test methods Determination of flexural strength under concentrated load EN 12407, Natural stone test methods Petrographic examination EN 13161, Natural stone test methods Determination of flexural strength under constan
22、t moment EN 13364, Natural stone test methods Determination of the breaking load at dowel hole EN 13373, Natural stone test methods Determination of geometric characteristics on units EN 13755, Natural stone test methods Determination of water absorption at atmospheric pressure EN 14146, Natural sto
23、ne test methods Determination of the dynamic modulus of elasticity (by measuring the fundamental resonance frequency) EN 14147, Natural stone test methods Determination of resistance to ageing by salt mist DIN EN 14066:2013-06 EN 14066:2013 (E) 4 EN 14157, Natural stone test methods Determination of
24、 the abrasion resistance EN 14158, Natural stone test methods Determination of rupture energy EN 14205, Natural stone test methods Determination of Knoop hardness EN 14231, Natural stone test methods Determination of the slip resistance by means of the pendulum tester EN 14579, Natural stone test me
25、thods Determination of sound speed propagation EN 14580, Natural stone test methods Determination of static elastic modulus EN 14581, Natural stone test methods Determination of linear thermal expansion coefficient According to the CEN-CENELEC Internal Regulations, the national standards organizatio
26、ns 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,
27、 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 14066:2013-06 EN 14066:2013 (E) 5 1 Scope This European Standard specifies a method to assess possible changes of natural stones under the effect of sudden changes i
28、n temperature (thermal shock). 2 Normative 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 reference
29、d document (including any amendments) applies. EN 1936, Natural stone test methods Determination of real density and apparent density, and of total and open porosity EN 12372, Natural stone test methods Determination of flexural strength under concentrated load EN 12670:2001, Natural stone Terminolo
30、gy EN 14146, Natural stone test methods Determination of the dynamic modulus of elasticity (by measuring the fundamental resonance frequency) EN 14579, Natural stone test methods Determination of sound speed propagation 3 Terms and definitions For the purposes of this document, the terms and definit
31、ions given in EN 12670:2001 apply. 4 Symbols and abbreviations FrFlexural strength tested on the reference specimens, in MPa FfFlexural strength tested on the specimens subjected to thermal cycles, in MPa F Change in flexural strength between reference and exposed specimens, in % E0Dynamic elastic m
32、odulus of the specimens before the thermal cycles, in MPa Ef Dynamic elastic modulus of the specimens after the thermal cycles, in MPa EChange in dynamic elastic modulus of the specimen, in % 0Open porosity before the test, in % fOpen porosity after the test, in % - Change in open porosity of the sp
33、ecimen, in % v0Ultrasound pulse velocity (UPV) before the test, in km/s vfUltrasound pulse velocity (UPV) after the test, in km/s v Change in Ultrasound pulse velocity of the specimen, in % DIN EN 14066:2013-06 EN 14066:2013 (E) 6 5 Principle After drying at (40 5) C for a week, the specimens are su
34、bjected to successive cycles, each formed by drying at (70 5) C followed by immediate immersion in water at (20 5) C. The potential strength loss is measured according to EN 12372. Exposed specimens and, when relevant, changes in other physical and mechanical properties are measured by one or more o
35、f the following non-destructive tests: dynamic elastic modulus (E0) according to EN 14146, UPV (v0) according to EN 14579, and open porosity (0) according to EN 1936, performed on specimens before and after the thermal cycles. 6 Apparatus 6.1 A ventilated oven capable of maintaining a temperature of
36、 (70 5) C. 6.2 A covered tank with a flat base, comprising small non-oxidising and non-absorbent supports for the specimens. 6.3 A weighing instrument with an accuracy of at least 0,01 % of the mass to be weighed. 7 Preparation of specimens 7.1 Sampling The sampling is not the responsibility of the
37、test laboratory except where specially requested. At least 20 specimens shall be selected from a homogeneous batch: a set of 10 specimens as references for flexural strength measurement of fresh material and the other set for the thermal cycles. 7.2 Dimensions of the test specimens The dimensions of
38、 the specimens shall be in accordance with EN 12372, i.e. determined by their thickness. the thickness shall be between 25 mm and 100 mm and shall be greater than twice the size of the largest grain in the stone; the total length shall be equal to six times the thickness; the distance between the su
39、pporting rollers shall be equal to five times the thickness; the width shall be between 50 mm and three times the thickness and in no case shall it be less than the thickness. 7.3 Putting reference marks on the specimens To ensure that the measurements of the dynamic elastic modulus or of the ultras
40、ound pulse velocity performed before and after the thermal shock test are done at the same points, indelible marks in the form of points are made on the relevant faces of the specimens, to show the location of emitter and receiver. Indelible lines are traced to show the location of the axis of the t
41、wo supports on which the specimens will be placed during the determination of the dynamic elastic modulus and the UPV. DIN EN 14066:2013-06 EN 14066:2013 (E) 7 7.4 Drying the specimens The specimens are dried in a ventilated oven at (40 5) C for one week and then cooled to ambient temperature (20 5)
42、 C before start of the cycles. 8 Test procedure 8.1 Control measurements before cycling Before cycling, depending on the test chosen to evaluate the change in performance, the specimens subjected to cycles are measured according to one or more of the non-destructive tests: dynamic elastic modulus (E
43、0) according to EN 14146, UPV (v0) according to EN 14579, and open porosity (0) according to EN 1936. 8.2 Description of the cycles The dried specimens are subjected to changes of temperature according to the following procedure: (18 1) h in a ventilated oven at (70 5) C; immediately followed by (6
44、0,5) h completely submerged in tap water, whose temperature before the immersion of the specimens is (20 5) C. Both in the oven and in the water container, the specimens are placed on the supports at a distance of at least 50 mm from one another and from the wall. In the water container, the specime
45、ns are placed on supports located at the bottom of the container which has been filled with tap water to such a height that the water level above the specimens is (60 10) mm. The procedure described above constitutes one cycle. If the test is to be interrupted at any time, other than for testing, th
46、en the specimens are to be immersed in water at (20 5) C. 8.3 Control measurements after cycling After the 20thcycle the specimens are dried to constant mass at (70 5) C. Constant mass is reached when the difference between two weighing at an interval of (24 2) h is not greater than 0,1 % of the fir
47、st of the two masses. Then they are visually inspected and compared with the reference specimens. All alterations are recorded. One or more of the non-destructive tests are performed: the dynamic elastic modulus (Ef) according to EN 14146, the UPV (vf) according to EN 14579, and/or the open porosity
48、 (f) according to EN 1936. Finally, the flexural strength test is performed according to EN 12372, on the dried references specimens and on the specimens subjected to thermal cycles. 9 Expression of results 9.1 Visual appearance Describe the modifications observed visually by comparison with the reference specimen, such as: cracking; scaling or exfoliation. 9.2 Modulus of elasti
