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1、BRITISH STANDARD BS EN 771-6:2001 Specification for masonry units Part 6: Natural stone masonry units The European Standard EN 771-6:2000 has the status of a British Standard ICS 91.080.30; 91.100.15 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sh
2、effieldun, na, Tue Nov 07 06:46:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 771-6:2001 This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effec
3、t on 15 March 2001 BSI 03-2001 ISBN 0 580 37302 9 National foreword This British Standard is the official English text version of the “ordinary” version of EN 771-6:2000. This edition of EN 771-6 will be superseded in due course by a “Harmonized European Standard” EN 771-6 which fully takes into acc
4、ount the requirements of the European Commission mandate M116 for masonry products. EN 771-6 is the subject of transitional arrangements agreed under the Commission mandate which is intended to lead to CE marking in support of the Construction Products Directive. In order to allow for any changes in
5、 national regulations, the Member States have agreed a transition period of 21 months for the coexistence of any conflicting national standards and the future Harmonized European Standard EN 771-6. Note 1 The above mentioned coexistence provisions therefore supersede the information given in the sec
6、ond paragraph of the Foreword to EN 771-6. Note 2 In the United Kingdom there are no conflicting national standards. The UK participation in its preparation was entrusted by Technical Committee B/519, Masonry and associated tests, to Subcommittee B/519/1, Masonry units, which has the responsibility
7、to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Additional information The possibility of the preparation of a National Annex NA to this British Standard is under consideration. This will provide informative commentary on the application of B
8、S EN 771-6 in the UK. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of t
9、he BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. ai
10、d enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document co
11、mprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Tue No
12、v 07 06:46:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 771-6 August 2000 ICS 91.100.15 English version Specification for masonry units Part 6: Natural stone masonry units Spcification pour lments de maonnerie Partie 6: Elments de maonnerie en pi
13、erre naturelle Festlegungen fr Mauersteine Teil 6: Natursteine This European Standard was approved by CEN on 14 July 2000. 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 with
14、out any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language m
15、ade by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Icelan
16、d, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitatio
17、n in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 771-6:2000 E Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:46:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 771-6:2000 BSI 03-2001 Contents Page Foreword. 3 1Scope 4 2Normative references 4
18、3Definitions and Symbols. 4 4Materials . 7 5Requirements for natural stone masonry units 7 6Description, designation and classification of natural stone masonry units 10 7Marking . 11 8Evaluation of conformity. 11 Annex A (normative) Sampling for initial type testing and for independent testing of c
19、onsignments 13 Bibliography. 15 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:46:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 771-6:2000 BSI 03-2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 125, Masonry, the Secretariat of which is held b
20、y BSI. 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 February 2001, and conflicting national standards shall be withdrawn at the latest by February 2001. This European Standard has been prepared
21、 under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Eur
22、opean Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Annex A is normative. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:46:17 GM
23、T+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 771-6:2000 BSI 03-2001 1 Scope This European Standard specifies the characteristics and performance requirements of natural stone masonry units manufactured from natural stone, the thickness of which is equal to or greater than 80 mm, used in load b
24、earing or non-load bearing masonry structures for internal or external applications. All kinds of manufactured stone are excluded. It defines the performance related to strength, petrographic description, density, porosity, dimensional accuracy, thermal conductivity, water absorption, and frost resi
25、stance, measured according to the corresponding test methods contained in separate European Standards. It also contains references to fire and acoustic properties. It provides for the evaluation of conformity of the product to this European Standard. The marking requirements for products covered by
26、this European Standard are also included. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated refe
27、rences, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. prEN 772-1, Methods of test for masonry units Part 1: De
28、termination of compressive strength. EN 772-4, Methods of test for masonry units Part 4: Determination of real and bulk density and of total and open porosity for natural stone masonry units. prEN 772-11, Methods of test for masonry units Part 11: Determination of water absorption due to capillary a
29、ction. prEN 772-16, Methods of test for masonry units Part 16: Determination of dimensions. prEN 772-20, Methods of test for masonry units Part 20: Determination of flatness of faces of aggregate concrete, manufactured and natural stone masonry. EN 12372, Natural stone test methods Determination of
30、flexural strength under concentrated load. prEN 1745, Masonry and masonry products Methods for determining design thermal values. 3 Definitions and Symbols For the purpose of this European Standard, the following definitions apply. 3.1 Unit related definitions 3.1.1 masonry unit preformed component
31、intended for use in masonry construction 3.1.2 face exposed face of natural stone masonry units Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:46:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 771-6:2000 BSI 03-2001 3.2 Material related definition 3.2.1 natural stone masonry unit
32、 masonry unit manufactured from natural stone 3.3 Size related definitions 3.3.1 dimensions and surfaces defined by reference to Figure 1 and Figure 2. Figure 1 relates to the dimensions and surfaces for rubble stone and Figure 2 relates to the dimensions and surfaces for dimensioned stone 3.3.2 co-
33、ordinating size size of the co-ordinating space allocated to a masonry unit including allowances for joints and tolerances 3.3.3 work size size of a masonry unit specified for its manufacture, to which the actual size conforms within permissible deviations 3.3.4 actual size size of a masonry unit as
34、 measured 3.4 Shape related definitions 3.4.1 rubble stone masonry unit squared or not of any shape with variable dimensions, whose face is rough or worked 3.4.2 squared rubble stone rubble stone which is squared and worked of dimensions declared by the manufacturer 3.4.3 regular shaped masonry unit
35、 masonry unit with an overall rectangular parallelepiped shape 3.4.4 specially shaped masonry unit masonry unit which is not rectangular parallelepiped 3.4.5 accessory masonry unit masonry unit which is shaped to provide a particular function, e.g. to complete the geometry of the masonry 3.4.6 dimen
36、sioned stone (finished unit) stone worked on all faces to declared dimensions Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:46:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 EN 771-6:2000 BSI 03-2001 Figure 1 Dimensions and surfaces for rubble stone Figure 2 Dimensions and faces fo
37、r dimensioned stone 3.5 Other definitions 3.5.1 declared value value that a manufacturer is confident of achieving bearing in mind the precision of the test and the variability of the manufacturing process 3.5.2 indicative samples piece of natural stone of sufficient size to indicate the appearance
38、of the finished work, regarding the colouring, the vein pattern, the physical structure and face finish 3.6 Symbols h is the height of masonry unit, in mm; l is the length of masonry unit, in mm; w is the width of masonry unit, in mm. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:46:17 G
39、MT+00:00 2006, Uncontrolled Copy, (c) BSI Page 7 EN 771-6:2000 BSI 03-2001 4 Materials 4.1 General Natural stone is a natural product obtained by mining or by quarrying and made into masonry units by a manufacturing process. 4.2 Materials of Natural Stone The following groups of materials are consid
40、ered as natural stone: ? Magmatic or igneous rocks: rocks formed by the cooling and solidification of the magma, e.g. granite, basalt, diorite, porphyry. ? Sedimentary rocks: rocks formed by deposition (generally in water) and consolidation of organic or inorganic particles. For example limestone, s
41、andstone, travertine. ? Metamorphic rocks: transformed rocks resulting from action of heat and/or pressure on the pre-existing rocks. For example slate, gneiss, quartzite, marble. 5 Requirements for natural stone masonry units 5.1 General The requirements and properties specified in this standard sh
42、all be defined in terms of the test methods and other procedures referred to in this European Standard. It should be noted that the test methods are not always applicable to specially shaped and accessory units as defined in 3.4.2. and 3.4.3. The conformity criteria given in the following subclauses
43、 relate to initial type tests (see 8.2) and to consignment testing (see annex A). For production evaluation the manufacturer shall define the conformity criteria in the factory production control documentation (see 8.3). 5.2 Petrographic description The petrographic description of natural stone is t
44、o obtain the petrographic classification and determine the features influencing its chemical, physical and mechanical behaviour. It is therefore necessary to characterize the natural stones not only from the point of view of their mineralogical components and of their fabric and structure but also i
45、n terms of any features. 5.3 Dimensions and tolerances 5.3.1 Dimensions The dimensions of a natural stone masonry unit shall be declared (by the manufacturer/supplier) in mm for length (l), width (w) and height (h) in that order. They shall be given in terms of work size and, in addition, the co-ord
46、inating size may be given. The assembly dimensions may also be given. When sampled in accordance with annex A and tested in accordance with prEN 772-16 using measurement method a), the tolerances shall be as indicated in clause 5.3.2. In addition, dimensioned stone (finished units) shall be tested f
47、or flatness and for out of squareness in accordance with prEN 772-20, the tolerances shall be as indicated in clause 5.3.2. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:46:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 8 EN 771-6:2000 BSI 03-2001 5.3.2 Tolerances The permissible dev
48、iations for individual masonry units shall be as given in Table 1. Table 1 Tolerances for natural stone masonry units Squared rubble stoneDimensionsDimensioned stone (finished unit) Sawn faceface roughly cut Rubble stone Length? 3 mm? 5 mm 1)? 15 mm 1)No requirement 3) Width? 3 mmNo requirementNo re
49、quirement 2)No requirement 3) Height? 3 mm? 5 mm 1)? 15 mmNo requirement 3) Flatness 0,3 % of dimension of the longest side 0,1 % of dimension of the longest side No requirement 2)No requirement 3) Squareness 0,3 % of dimension of the longest side No requirementNo requirement 2)No requirement 3) 1) On the face being worked. 2) There are no tolerances specified in this standard. The manufacturer/supplier shall quote the maximum range of dimensions. 3) No requirements can be specified NOTEFor some applications such as thin bed joi