1、BRITISH STANDARD BS EN 14617-15:2005 Agglomerated stone Test methods Part 15: Determination of compressive strength The European Standard EN 14617-15:2005 has the status of a British Standard ICS 91.100.15 BS EN 14617-15:2005 This British Standard was published under the authority of the Standards P
2、olicy and Strategy Committee on 18 April 2005 BSI 18 April 2005 ISBN 0 580 45843 1 National foreword This British Standard is the official English language version of EN 14617-15:2005. The UK participation in its preparation was entrusted to Technical Committee B/545, Natural stone, which has the re
3、sponsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled
4、“International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance wit
5、h a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related internat
6、ional and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 11 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments
7、 issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN1461715 March2005 ICS91.100.15 Englishversion AgglomeratedstoneTestmethodsPart15:Determinationof compressivestrength PierreagglomreMthodesdessaiPartie15: Dterminationdelarsistancelacompression Knstlichhe
8、rgestellterSteinPrfverfahrenTeil15: BestimmungderDruckfestigkeit ThisEuropeanStandardwasapprovedbyCENon3February2005. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelist
9、sandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguagea
10、ndnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, S
11、lovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.
12、EN1461715:2005:EEN 14617-15:2005 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Principle4 4 Terms and definitions .4 5 Symbols 4 6 Apparatus .4 7 Preparation of specimens.5 8 Procedure .6 9 Expression of results 6 10 Test report 6 Annex A (normative) Statistical evaluation of te
13、st results8 Bibliography 11 EN 14617-15:2005 (E) 3 Foreword This document (EN 14617-15:2005) 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 o
14、f an identical text or by endorsement, at the latest by September 2005, and conflicting national standards shall be withdrawn at the latest by September 2005. Test methods for agglomerated stones consist of the following: EN 14617-1, Agglomerated stone - Test methods Part 1: Determination of apparen
15、t density and water absorption EN 14617-2, Agglomerated stone Test methods Part 2: Determination of flexural strength (bending) prEN 14617-3, Agglomerated stone - Test methods Part 3: Determination of slipperiness EN 14617-4, Agglomerated stone - Test methods Part 4: Determination of the abrasion re
16、sistance 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 prEN 14617-7, Agglomerated stone Test methods Part 7: Determination of ageing prEN 14617-8, Agglomerated sto
17、ne Test methods Part 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
18、Part 11: Determination 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
19、15: Determination of compressive strength EN 14617-16, Agglomerated stone Test methods Part 16: Determination of dimensions, geometric characteristics and surface quality of modular tiles prEN 14617-17, Agglomerated stone Test methods Part 17: Determination of biological resistance According to the
20、CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
21、rg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14617-15:2005 (E) 4 1 Scope This document specifies a method for determining the compressive strength of agglomerated stones. 2 Normative references The following referenced docume
22、nts 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 197-1, Cement - Part 1: Composition, specifications and conformity criteria f
23、or common cements EN 12390, Testing hardened concrete EN 14618:2003, Agglomerated stone- Terminology and classification 3 Principle The specimens, after mechanical preparation of the surfaces or, if needed, after capping, are laid and centred on the plate of a testing machine. A uniformly distribute
24、d load is applied and increased continuously until failure occurs. 4 Terms and definitions For the purposes of this standard, the terms and definitions given in EN 14618:2003 apply. 5 Symbols h height of the specimen, in millimetres; l mean value of the lateral dimension, i.e. the distance between o
25、pposite vertical faces of the specimen (if cubic), in millimetres; d mean value of the diameter of the specimen (if cylindrical), in millimetres; A cross-sectional area of the specimen before testing, in square millimetres; F failure load, in newtons; R uniaxial compressive strength of the specimen,
26、 in MPa; R mean value of the uniaxial compressive strength, in MPa; s standard deviation; v coefficient of variation. 6 Apparatus 6.1 A surface grinder. 6.2 A lapping machine if final preparation of the specimens is needed. EN 14617-15:2005 (E) 5 6.3 A test machine of appropriated force, in accordan
27、ce with EN 12390 and calibrated according to this standard, and provided with a system for controlling the strain rate. 6.4 A time counter accurate to 1 s. 6.5 A ventilated oven which can maintain a temperature of (70 5) C. 6.6 A weighing instrument with an accuracy of 0,1g. 6.7 A linear measuring d
28、evice with an accuracy of 0,05 mm. 6.8 Air conditioned room with a temperature of (20 5) C. 7 Preparation of specimens 7.1 Sampling The sampling is not the responsibility of the testing laboratory except where it is especially requested to undertake this. At least six specimens are to be tested. 7.2
29、 Test specimens Test specimens shall be cubes with (70 5) mm or (50 5) mm edge or right circular cylinders whose diameter and height are equal to (70 5) mm or (50 5) mm. The height of the specimen can be reached also gluing, using suitable adhesives, different samples of minimum 6,5 mm of thickness.
30、 If the maximum observed dimension of the grains exceeds 7 mm, it is recommended to have a larger number of specimens in order to obtain representative results. 7.3 Surface preparation 7.3.1 General The faces through which the load is to be applied shall be flat to a tolerance of 0,1 mm and shall no
31、t depart from perpendicularity to the axis of the specimen by more than 0,01 radian or 1 mm in 100 mm. The sides of the specimen shall be smooth and free of abrupt irregularities and straight to within 0,3 mm over the full length of the specimen. To meet the above requirements the specimens shall be
32、 finished on either a lathe or surface grinder, with final preparation on a lapping machine if needed. Capping with paste according to the procedures indicated in 7.3.2 is to be used only if the indicated tolerances are not obtainable with the prescribed mechanical preparation. This condition shall
33、be clearly indicated in the test report. 7.3.2 Capping with paste If the specimen height indicated in 7.2 cannot be reached by the available samples, it is possible to cap the specimen at the required height using a paste made up with water and cement CEM I 52,5 R according to EN 197- 1, water/cemen
34、t ratio of (0,6 0,1), curing in room condition according to EN 197-1 for one week 4 hours. EN 14617-15:2005 (E) 6 7.4 Conditioning of specimen before testing Specimens, whether capped or uncapped, shall be dried at (70 5) C to constant mass, i.e. the difference between two weighings is no greater th
35、an 0,1% of the mass of the specimen in (24 2) h. After drying and prior to testing the specimens shall be stored at (20 5) C until the thermal equilibrium is reached. After that, the tests shall be performed within 24 h. 8 Procedure 8.1 Measuring the specimen The cross-sectional dimensions of the te
36、st specimen (lateral dimension for cubic, diameter for cylindrical test specimens) shall be measured to the nearest 0,1 mm by averaging two measures taken at right angles to each other at about the upper-height and two about the lower-height h of the specimen. The average lateral dimension l or the
37、average diameter d shall be used for calculating the cross-sectional area. The height of the specimen shall be determined to the nearest 1,0 mm. 8.2 Placing the specimen in the testing machine Wipe the bearing surfaces of the testing machine clean and remove any loose grit from the bed faces of the
38、specimen. Align the specimen carefully with the centre of the ball-seated platen, so that a uniform seating is obtained. Do not use any packing material. 8.3 Loading Load on the specimen shall be applied continuously at a constant stress rate of (1 0,5) MPa/s. The failure load on the specimen shall
39、be measured to the nearest 1kN and recorded. 9 Expression of results The uniaxial compressive strength R of each specimen is expressed by the ratio of the failure load of the specimen and its cross-sectional area before testing, by the equation: R = F Astating the type of specimen by Rc and Rcyl in
40、the case of cube and cylinder respectively. The result shall be expressed in MPa with at least one significant figure. The mean value R shall be calculated to the nearest 1 MPa. 10 Test report The test report shall contain the following information: a) unique identification number of the report; b)
41、number, title and date of issue of this document; c) name and address of the test laboratory and the address where the test was carried out if different from the testing laboratory; d) name and address of the client; e) it is the responsibility of the client to supply the following information: - na
42、me of the supplier; EN 14617-15:2005 (E) 7 - 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 f) date of delivery of the sample or of the specimens; g) date when the specimens were prepared (if rel
43、evant) and the date of testing; h) number of specimens in the sample; i) dimensions l (or d ) and h in millimetres and the failure load F of each specimen, in newtons; j) surface preparation of the specimens and their conditioning before testing; k) orientation of the axis of loading with respect to
44、 the existing planes of anisotropy; l) compressive strength R of each specimen, in Megapascals with at least two significant figures; m) mean value R of compressive strength, in Megapascals to the nearest 1 MPa; n) standard deviation s , in Megapascals to the nearest 1 MPa, and the variation coeffic
45、ient v; o) all deviations from the standard and their justification; p) remarks. The test report shall contain the signature(s) and role(s) of the responsible(s) for the testing and the date of issue of the report. It shall also state that the report shall not be partially reproduced without the wri
46、tten consent of the testing laboratory. NOTE Comparison between test results should be only made for specimens of the same shape. EN 14617-15:2005 (E) 8 Annex A (normative) Statistical evaluation of test results A.1 Scope This Annex establishes a method for the statistical treatment of test results
47、obtained following the agglomerated stone test method described in this document. A.2 Symbols and definitions Measured values x 1 , x 2 , x i, x nNumber of measured values n Mean value = i i x n x 1Standard deviation 1 ) ( = n x xi s Coefficient of variation v = s x(for individual values) Logarithmi
48、c Mean = i i x n x ln 1 lnLogarithmic Standard deviation 1 ) (ln ln ln = n x x s iMaximum value Max Minimum value Min Lower expected valueE = e x ln k s s lnwhere k s(quantile factor) is given in table A.1 Quantile factor k ssee table A.1 EN 14617-15:2005 (E) 9 A.3 Statistical evaluation of test results For the calculation of the mean value ( ) x , the standard deviation (s) and the coefficient of variation (v) a normal distribution is assumed. For the calculation
