1、November 2015 English price group 16No 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 91.100.30!%GR2“2364715www.din.d
2、eDIN EN 771-4Specification for masonry units Part 4: Autoclaved aerated concrete masonry units;English version EN 771-4:2011+A1:2015,English translation of DIN EN 771-4:2015-11Festlegungen fr Mauersteine Teil 4: Porenbetonsteine;Englische Fassung EN 771-4:2011+A1:2015,Englische bersetzung von DIN EN
3、 771-4:2015-11Spcifications pour lments de maonnerie Partie 4: Elments de maonnerie en bton cellulaire autoclav;Version anglaise EN 771-4:2011+A1:2015,Traduction anglaise de DIN EN 771-4:2015-11SupersedesDIN EN 771-4:2011-07See start of applicationwww.beuth.deDTranslation by DIN-Sprachendienst.In ca
4、se of doubt, the German-language original shall be considered authoritative.Document comprises 37 pages 10.15 DIN EN 771-4:2015-11 2 A comma is used as the decimal marker. Start of application It should be noted that, in Germany, CE conformity marking of construction products will be permitted once
5、this standard has been listed in the Official Journal of the European Union and/or the Bundesanzeiger (German Federal Gazette) and from the date given therein. For further information, users of this standard should refer to the websites of the European Commission or of the relevant building authorit
6、y. The standard which this document replaces, DIN EN 771-4:2011-07, may be used in parallel with this standard during a specified transition period where such has been laid down in the Official Journal of the European Union and/or the Bundesanzeiger (German Federal Gazette). National foreword This d
7、ocument (EN 771-4:2011+A1:2015) has been prepared by Technical Committee CEN/TC 125 “Masonry” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engineering), Working Committee NA 00
8、5-06-02 AA Koordinie-rungsausschuss Mauersteine (SpA zu CEN/TC 125/WG 1). Amendments This standard differs from DIN EN 771-4:2011-07 as follows: a) the entire document has been editorially revised; b) Annex ZA has been completely revised. Previous editions DIN 4165: 1959-02, 1973-12, 1982-09, 1986-1
9、2, 1996-11 DIN V 4165: 2003-06 DIN EN 771-4: 2000-08, 2003-10, 2005-05, 2011-07 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 771-4:2011+A1 August 2015 ICS 91.100.30 Supersedes EN 771-4:2011English Version Specification for masonry units - Part 4: Autoclaved aerated concrete masonry units Spc
10、ifications pour lments de maonnerie - Partie 4: lments de maonnerie en bton cellulaire autoclav Festlegungen fr Mauersteine - Teil 4: Porenbetonsteine This European Standard was approved by CEN on 17 March 2011 and includes Amendment 1 approved by CEN on 11 January 2015. CEN members are bound to com
11、ply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European 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-CENELE
12、C Management Centre or to any CEN member. This European Standard exists in three official versions (English, 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 s
13、ame status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
14、g, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2
15、015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 771-4:2011+A1:2015 EEN 771-4:2011+A1:2015 (E) 2 Contents Page European foreword .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Materials and manufacture .8 4.1
16、 General 8 4.2 Materials of manufacture 8 5 Requirements for AAC masonry units 8 5.1 General 8 5.2 Dimensions and tolerances 8 5.2.1 Dimensions .8 5.2.2 Tolerances 9 5.3 Configuration 10 5.4 Density . 11 5.4.1 Gross dry density . 11 5.4.2 Net dry density 11 5.4.3 Limit deviations . 12 5.5 Compressiv
17、e strength 12 5.6 Thermal properties . 12 5.7 Durability . 12 5.8 Moisture movement 13 5.9 Water vapour permeability . 13 5.10 Water absorption 13 5.11 Reaction to fire 13 5.12 Shear bond strength . 13 5.12.1 General . 13 5.12.2 Declaration based on fixed values 14 5.12.3 Declaration based on tests
18、14 5.13 Flexural bond strength . 14 5.14 Dangerous substances 14 6 Description, designation and classification of AAC masonry units . 14 6.1 Description and designation . 14 6.2 Classification . 15 7 Marking 15 8 !Assessment and verification of constancy of performance (AVCP)“ 15 8.1 General . 15 8.
19、2 Product type determination . 16 8.3 Factory production control 17 8.3.1 General . 17 8.3.2 Testing and measuring equipment . 17 8.3.3 Production equipment 17 8.3.4 Raw materials 17 8.3.5 Production process 17 8.3.6 Finished product testing 18 8.3.7 Statistical techniques . 18 8.3.8 Marking and sto
20、ck control of products 18 DIN EN 771-4:2015-11 EN 771-4:2011+A1:2015 (E) 3 8.3.9 Traceability . 18 8.3.10 Nonconforming products . 18 Annex A (normative) !Sampling for product type determination test and for independent testing of consignments“ 19 A.1 General . 19 A.2 Sampling procedure for an asses
21、sment of product compliance . 19 A.2.1 Random sampling . 19 A.2.2 Representative sampling 19 A.2.3 Dividing the sample . 20 A.2.4 Number of masonry units required for testing . 20 Annex B (normative) Cutting schemes . 21 B.1 Cutting scheme for producing cubes or prisms from AAC masonry units in orde
22、r to determine the dry density . 21 B.2 Cutting scheme for producing cubes from AAC masonry units in order to determine compressive strength . 22 Annex C (informative) Guidance on FPC frequencies. 23 Annex ZA (informative) !Clauses of this European Standard addressing the provisions of the EU Constr
23、uction Products Regulation“ 25 ZA.1 Scope and relevant characteristics . 25 ZA.2 Procedure(s) for AVCP of Autoclaved Aerated Concrete masonry units 26 ZA.2.1 System(s) of AVCP 26 ZA.2.2 Declaration of performance (DoP) . 28 ZA.3 CE marking and labelling 32 Bibliography 35 DIN EN 771-4:2015-11 EN 771
24、-4:2011+A1:2015 (E) 4 European foreword This document (EN 771-4:2011+A1:2015) has been prepared by Technical Committee CEN/TC 125 “Masonry”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or
25、 by endorsement, at the latest by February 2016, and conflicting national standards shall be withdrawn at the latest by May 2017. 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
26、 identifying any or all such patent rights. This document supersedes !EN 771-4:2011“. This document includes Amendment 1 approved by CEN on 2015-01-11. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. !This document has been prepared under a mandat
27、e given to CEN by the European Commission and the European Free Trade Association and supports basic requirements for construction works of the EU Construction Products Regulation (Regulation (EU) No 305/2011). For relationship with EU Regulation/Directive(s), see informative Annex ZA, which is an i
28、ntegral part of this document.“ This European Standard also takes into account the general rules for reinforced and unreinforced masonry in Eurocode 6. EN 771, Specification for masonry units consists of: Part 1: Clay masonry units Part 2: Calcium silicate masonry units Part 3: Aggregate concrete ma
29、sonry units (Dense and light weight aggregates) Part 4: Autoclaved aerated concrete masonry units Part 5: Manufactured stone masonry units Part 6: Natural stone masonry units According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound
30、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, Netherlands, Norway, Poland, Portugal,
31、Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 771-4:2015-11 EN 771-4:2011+A1:2015 (E) 5 1 Scope This European Standard specifies the characteristics and performance requirements of autoclaved aerated concrete (AAC) masonry units for which the main int
32、ended uses are different types of load bearing and non-load bearing applications in all forms of walling including single leaf, cavity, partitions, retaining, basement and general use below ground level, including walling for fire protection, thermal insulation, sound insulation and the fabric of ch
33、imneys (excluding chimney flue units). !This European Standard includes AAC masonry units with an incorporated insulation not exposed to fire, and masonry units of an overall rectangular parallelepiped shape, specially shaped and accessory units. AAC masonry units may consist of layers of different
34、densities where not all of the layers are loadbearing.“ !It provides for the assessment and verification of constancy of performance (AVCP) of the product to this European Standard. The marking requirement for products covered by this European Standard is included.“ This European Standard does not c
35、over the requirements for storey height panels, flue linings and masonry units with an incorporated thermal insulation material bonded to the faces of the unit susceptible to be exposed to fire. It does not specify standard sizes for autoclaved aerated concrete units nor standard work dimensions and
36、 angles of specially shaped and accessory units. It does not give permissible deviations for specially shaped and accessory units. It does not cover products intended for use as a damp proof course or the lining of a chimney. 2 Normative references The following referenced documents are indispensabl
37、e 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 680, Determination of the drying shrinkage of autoclaved aerated concrete EN 772-1:2011, Methods
38、of test for masonry units Part 1: Determination of compressive strength EN 772-11, Methods of test for masonry units Part 11: Determination of water absorption of aggregate concrete, autoclaved aerated concrete, manufactured stone and natural stone masonry units due to capillary action and the initi
39、al rate of water absorption of clay masonry units EN 772-13, Methods of test for masonry units Part 13: Determination of net and gross dry density of masonry units (except for natural stone) EN 772-16:2011, Methods of test for masonry units Part 16: Determination of dimensions EN 772-20, Methods of
40、test for masonry units Part 20: Determination of flatness of faces of aggregate concrete, manufactured stone and natural stone masonry units EN 1052-2, Methods of test for masonry Part 2: Determination of flexural strength EN 1052-3, Methods of test for masonry Part 3: Determination of initial shear
41、 strength EN 1745, Masonry and masonry products Methods for determining thermal properties EN 13501-1, Fire classification of construction products and building elements Part 1: Classification using data from reaction to fire tests DIN EN 771-4:2015-11 EN 771-4:2011+A1:2015 (E) 6 EN ISO 12572, Hygro
42、thermal performance of building materials and products Determination of water vapour transmission properties (ISO 12572:2001) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 masonry unit preformed component intended for use in masonry constru
43、ction 3.2 !autoclaved aerated concrete (AAC) masonry unit masonry unit manufactured from hydraulic binders such as cement and/or lime, combined with siliceous based fine material, cell generating material and water and cured with high pressure steam in autoclaves Note 1 to entry: AAC masonry units m
44、ay be provided with recesses, tongued and grooved jointing systems and other interlocking features and different hollow forms such as units with a U shape or with vertical or rectangular perforation.“ 3.3 co-ordinating size size of the co-ordinating space allocated to a masonry unit including allowa
45、nces for joints and tolerances 3.4 work size size of masonry unit specified for its manufacture, to which the actual size conforms within permissible deviations 3.5 actual size size of a masonry unit as measured 3.6 regular shaped masonry unit masonry unit with an overall rectangular parallelepiped
46、shape 3.7 specially shaped masonry unit masonry unit which is not a rectangular parallelepiped 3.8 accessory unit masonry unit which is shaped to provide a particular function 3.9 interlocking features shaped matched projections and indentations on masonry units, e.g. tongue and groove systems 3.10
47、hole formed void which may or may not pass completely through a masonry unit 3.11 vertical perforation formed void which passes completely through a masonry unit perpendicular to the bed face DIN EN 771-4:2015-11 EN 771-4:2011+A1:2015 (E) 7 3.12 horizontal perforation formed void which passes comple
48、tely through a masonry unit parallel to the bed faces 3.13 cell formed void which does not pass through a masonry unit 3.14 recess depression or indentation in one or more surfaces of a masonry unit (e.g. mortar pocket, rendering keyway) 3.15 griphole hole in a masonry unit to enable it to be more r
49、eadily grasped and lifted by hand or by machine 3.16 declared value value that a manufacturer is confident of achieving, bearing in mind the precision of test and variability of the manufacturing process 3.17 Category I masonry units units with a declared compressive strength with a probability of failure to reach it not exceeding 5 % NOTE This may be determined via the mean or characteristic value. 3.18 Category II masonry units units not intend
