1、August 2008DEUTSCHE NORM English price group 7No part of this standard 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 73.020; 91.100.15!$Q2W“1
2、461552www.din.deDDIN EN 13755Natural stone test methods Determination of water absorption at atmospheric pressureEnglish version of DIN EN 13755:2008-08Prfverfahren fr Naturstein Bestimmung der Wasseraufnahme unter atmosphrischem DruckEnglische Fassung DIN EN 13755:2008-08SupersedesDIN EN 13755:2002
3、-03 andwww.beuth.deDocument comprises 10 pagesCorrigendum 1:2004-03DIN EN 13755DIN EN 13755:2008-08 2 National foreword This standard has been prepared by Technical Committee CEN/TC 246 “Natural stones” (Secretariat: UNI, Italy). The responsible German bodies involved in its preparation were the Nor
4、menausschuss Bauwesen (Building and Civil Engineering Standards Committee) and the Normenausschuss Materialprfung (Materials Testing Standards Committee), Joint Committee NA 062-03-11 GA Naturwerkstein; Anforderungen, Prfverfahren und Terminologie. Amendments This standard differs from DIN EN 13755:
5、2002-03 and DIN EN 13755 Corrigendum 1:2004-03 as follows: a) In subclause 6.3 it has been clarified that constant mass is reached when the difference between two successive weighings is not greater than 0,1 % of the first of the two masses. b) Clause 7 “Test procedure” has been revised; the require
6、ment for dissolved air has been deleted. c) The standard has been editorially revised. Previous editions DIN DVM 2103: 1928-04, 1931-04 DIN DVM 2104: 1928-04 DIN DVM 2204 = DIN 52204: 1933-08 DIN 52104: 1942x-11 DIN 52113: 1965-03 DIN 52103: 1942-11, 1972-11, 1988-10 DIN EN 13755: 2002-03 DIN EN 137
7、55 Corrigendum 1: 2004-03 EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13755April 2008ICS 73.020; 91.100.15 Supersedes EN 13755:2001 English VersionNatural stone test methods - Determination of water absorptionat atmospheric pressureMthodes dessai pour pierres naturelles - Dterminationde labsor
8、ption deau la pression atmosphriquePrfverfahren fr Naturstein - Bestimmung derWasseraufnahme unter atmosphrischem DruckThis European Standard was approved by CEN on 28 March 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
9、EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (Engl
10、ish, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, C
11、yprus, 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 and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOM
12、IT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13755:2008: EEN 13755:2008 (E) 2 Contents Page Foreword3 1 Scope 5 2
13、 Normative references 5 3 Principle5 4 Symbols 5 5 Apparatus .5 6 Preparation of the specimens 5 6.1 Sampling.5 6.2 Test specimens5 6.3 Drying the specimens .6 7 Test procedure.6 8 Expression of results 6 9 Test report 7 Bibliography 8 DIN EN 13755:2008-08 EN 13755:2008 (E) 3 Foreword This document
14、(EN 13755:2008) 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 endorsement, at the latest by October 2008, and con
15、flicting national standards shall be withdrawn at the latest by October 2008. 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 identifying any or all such patent rights. This doc
16、ument supersedes EN 13755:2001. This European Standard is one of the series of European Standards for tests on natural stone. Test methods for natural stone consist of the following parts: EN 1925, Natural stone test methods Determination of water absorption coefficient by capillarity EN 1926, Natur
17、al 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, Natural stone
18、 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 constant moment
19、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 13919, Natural stone test m
20、ethods Determination of resistance to ageing by SO2action in the presence of humidity EN 14066, Natural stone test methods Determination of resistance to ageing by thermal shock EN 14146, Natural stone test methods Determination of the dynamic modulus of elasticity (by measuring the fundamental reso
21、nance frequency) EN 14147, Natural stone test methods Determination of resistance to ageing by salt mist EN 14157, Natural stone test methods Determination of abrasion resistance EN 14158, Natural stone test methods Determination of rupture energy DIN EN 13755:2008-08 EN 13755:2008 (E) 4 EN 14205, N
22、atural 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 methods Determination of sound speed propagation EN 14580, Natural stone test methods Determination of stat
23、ic elastic modulus EN 14581, Natural stone test methods Determination of linear thermal expansion coefficient According to CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cypr
24、us, 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 and United Kingdom. DIN EN 13755:2008-08 EN 13755:2008 (E) 5
25、1 Scope This European Standard specifies a method for determining the water absorption of natural stone see EN 12670 for terminology and EN 12440 for denomination - by immersion in water at atmospheric pressure. 2 Normative references Not applicable. 3 Principle After drying to a constant mass, each
26、 specimen is weighed and then immersed in water at atmospheric pressure for a specified period of time. Determination of the water absorption at atmospheric pressure, expressed as a percentage, by the ratio of the mass of the saturated specimen (obtained at constant mass) to the mass of the dry spec
27、imen. 4 Symbols md mass of the dry specimen, in grams; misuccessive masses of the specimen during testing, in grams; msmass of the saturated specimen (after immersion in water until constant mass is reached), in grams; Abwater absorption at atmospheric pressure, expressed as a percentage. 5 Apparatu
28、s 5.1 A tank with flat base comprising small non-oxidising and non-absorbent supports for the specimens. 5.2 A ventilated oven which can maintain a temperature of (70 5) C. 5.3 A weighing instrument with an accuracy of 0,01 g. 6 Preparation of the specimens 6.1 Sampling The sampling is not under the
29、 responsibility of the test laboratory except where especially requested. At least six specimens shall be selected from a homogenous batch. 6.2 Test specimens The test specimens shall have the form of a cylinder, cube or prism (70 5) mm or (50 5) mm and shall be obtained by diamond sawing or coring.
30、 Their apparent volume calculated by geometrical measurements shall be at least 60 ml. In addition, the surface area to volume ratio shall be between 0,08 mm-1and 0,20 mm-1. DIN EN 13755:2008-08 EN 13755:2008 (E) 6 NOTE The specimens prepared for the determination of compressive or flexural strength
31、 can be used if they satisfy the surface/volume ratio. 6.3 Drying the specimens The test specimens are to be dried to constant mass at a temperature of (70 5) C. Constant mass is reached when the difference between two successive weighings at an interval of (24 2) h is not greater than 0,1 % of the
32、first of the two masses. The specimens shall be kept in a desiccator until room temperature (20 5) C is attained. 7 Test procedure Weigh the specimens after drying (md) to an accuracy of 0,01 g. Place the specimens in the tank on the supports provided. Each specimen needs to be at least 15 mm from a
33、djacent specimens. Then add tap water at (20 10) C up to half the height of the specimens (time t0). At time t0+ (60 5) min add tap water until the level of the water reaches three-quarter of the height of the specimens. At time t0+ (120 5) min add tap water until the specimens are completely immers
34、ed to a depth of (25 5) mm of water. At time t0+ (48 2) h the specimens are taken out of the water, quickly wiped with a damp cloth and then weighed within 1 min to an accuracy of 0,01 g (mi). Immerse the specimens again in water and continue the test. Every (24 2) h the specimens are taken out of t
35、he water, quickly wiped with a damp cloth and then weighed within 1 min to an accuracy of 0,01 g. Note the successive masses of the specimens (mi). Continue the test up to constant mass of the specimens. Constant mass is reached when the difference between two successive weighings is not greater tha
36、n 0,1 % of the first of the two masses. The result of the last weighing is the mass of the saturated specimen (ms). 8 Expression of results The water absorption at atmospheric pressure Ab of each specimen is calculated by the equation: 100ddsb=mmmA The result shall be expressed as a percentage to th
37、e nearest 0,1 %. DIN EN 13755:2008-08 EN 13755:2008 (E) 7 9 Test report The test report shall contain the following information: a) unique identification number of the report; b) the number, title and date of issue of this European Standard, i.e. EN 13755:2008; c) the name and address of the test la
38、boratory and the address where the test was carried out if different from the test laboratory; d) the name and address of the client; e) it is the responsibility of the client to supply the following information: the petrographic name of the stone; the commercial name of the stone; the country and r
39、egion of extraction; the name of the supplier; the direction of any existing plane of anisotropy (if relevant to the test) to be clearly indicated on the sample or on each specimen by means of two parallel lines; the name of the person or organisation which carried out the sampling; the surface fini
40、sh of the specimen (if relevant to the test); f) the date of delivery of the sample or of the specimens; g) the date when the specimens were prepared (if relevant) and the date of testing; h) the number of specimens in the sample; i) the dimensions of the specimens; j) for each specimen the water ab
41、sorption at atmospheric pressure to the nearest 0,1 %; k) the arithmetic mean of the individual values of water absorption at atmospheric pressure expressed to the nearest 0,1 %; l) all deviations from the standard and their justification; m) remarks. The test report shall contain the signature(s) a
42、nd 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 written consent of the test laboratory. DIN EN 13755:2008-08 EN 13755:2008 (E) 8 Bibliography 1 EN 12440, Natural stone Denomination criteria 2 EN 12670, Natural stone Terminology DIN EN 13755:2008-08
