1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 771-4:2011Specification for masonry unitsPart 4: Autoclaved aerated concretemasonry unitsBS EN 771-4:2011Provided by IHSNot for ResaleNo reproduction or networking permitte
2、d without license from IHS-,-,-BS EN 771-4:2011 BRITISH STANDARDNational ForewordThis British Standard is the UK implementatinulln nullnull EN 771-4:2011null It snullpersedes BS EN 771-4:200nullnull nullhinullh is nullithdranullnnullEN 771-4:2011 is a nullharmnullninullednull Enullrnullpean Standard
3、 and nullnullllnull tanullesintnull anullnullnullnullnt the renullnullirements nullnull the Enullrnullpean nullnullmmissinulln mandatenull11nullnull nullasnullnrnull and related prnulldnullnulltsnull nullinullen nullnder the EU nullnullnstrnullnulltinullnnullrnulldnullnullts Direnulltinulle nullnull
4、nullnull10nullnullEEnullnullnull and is intended tnull lead tnull nullE marnullinnullnullEN 771-4 nullas the snullnullnullenullt nullnull transitinullnal arrannullements anullreed nullnderthe nullnullmmissinulln mandatenull In the UKnull the nullnullrrespnullndinnull natinullnalstandard nullas:null
5、BS null07null-1:1nullnull1null Precast concrete masonry units Part 1:Specification for precast concrete masonry unitsnull nullhinullh nullas nullithdranulln in 200nullnullThe UK partinullipatinulln in its preparatinulln nullas entrnullsted tnull Tenullhninullal nullnullmmittee Bnullnull1nullnull nul
6、lasnullnrnull and assnullnulliated testinnullnull tnullSnullnullnullnullmmittee Bnullnull1nullnull1null nullasnullnrnull nullnitsnullA list nullnull nullrnullaninullatinullns represented nulln this nullnullmmittee nullan nulle nullnulltainednulln renullnullest tnull its senullretarnullnullEN 771-4 s
7、penullinulles the nullharanullteristinulls and pernullnullrmannulle renullnullirementsnullnullr anulltnullnulllanulled aerated nullnullnnullrete masnullnrnull nullnits anullailanullle thrnullnullnullhnullnulltthe nullEN memnuller nullnullnullntriesnull It aims tnull dnull snull in prnulldnullnullt p
8、ernullnullrmannulletermsnull anullnullidinnull as nullar as pnullssinullle presnullriptinulle renullnullirements nullnulltpermittinnull all the traditinullnal desinullnatinullns nullnull anulltnullnulllanulled aerated nullnitsanullailanullle thrnullnullnullhnullnullt Enullrnullpenull The nullnullnnu
9、llept nullnull the denulllared nullalnulle hasnulleen intrnulldnullnullednull This is the nullalnulle nullnullr the nullarinullnulls prnullperties renullerredtnull in this standard that the mannullnullanulltnullrer nulllaims nullnullr the prnulldnullnulltnull Thereare nullther nnulltanullle dinullnu
10、llerennulles tnull nullhinullh the natinullnal annenull nullill renullernull in partinullnulllar the snullppnullrtinnull test methnullds are dinullnullerent and in respenulltnullnull nullnullmpressinulle strennullthnull mannullnullanulltnullred anulltnullnulllanulled aerated nullnullnnullretemasnull
11、nrnull nullnits are desinullnated either nullatenullnullrnull I nullr nullatenullnullrnull IInullThe UK Natinullnal Annenull NA attanullhed tnull this standard prnullnullides aninnullnullrmatinulle nullnullmmentarnull nulln the dinullnullerennulles nulletnulleen EN 771-4 andBS null07null-1null Nnull
12、thinnull in this annenull shnullnullld nulle nullnullnstrnulled as spenullinullnullinnullrenullnullirements nullther than thnullse nullnullntained in the nnullrmatinulle parts nullnullthis Enullrnullpean StandardnullInull nullE marnullinnull is pernullnullrmednull the prnullnullednullres in Annenull
13、 nullA nullill applnullnullThe sinullninullnullannulle nullnull the nullE marnullinnull is that the prnulldnullnullt mannullnullanulltnullrernulllaims nullnullmpliannulle nullith the nullharmnullninullednull renullnullirements nullinullen in thennullrmatinulle tenullt nullnull the prnulldnullnullt s
14、tandardnull These relate tnull the essentialrenullnullirements nullnull the EU nullnullnstrnullnulltinulln nullrnulldnullnullts Direnulltinullenull Nnullt allprnulldnullnullt nullharanullteristinulls need nenullessarilnull nulle nullinullen nulln the nullE marnullinnullnullnullnullt thnullse prnulld
15、nullnullt nullharanullteristinulls nullnullnullered nullnull renullnulllatinullns in nullnullrnulle ineanullh EU nullemnuller Statenull nullhere the mannullnullanulltnullrer intends that theprnulldnullnullt nullill nulle nullsednull dnull need tnull nulle statednullIt nullannnullt nulle assnullmed t
16、hat the denulllared nullalnulle nullnull a pernullnullrmannullenullharanullteristinull nullinullen nullnullr a masnullnrnull nullnit nullnullnnullnullrminnull tnull nullne part nullnull EN 771nullan nulle direnulltlnull nullnullmpared nullith the same pernullnullrmannulle nullharanullteristinull nul
17、lnullr amasnullnrnull nullnit nullnullnnullnullrminnull tnull annullther part nullnull EN 771nullProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-4:2011BRITISH STANDARDThis pnullnulllinullatinulln dnulles nnullt pnullrpnullrt tnull innulllnu
18、llde all the nenullessarnull prnullnullisinullns nullnull a nullnullntranulltnull Users are respnullnsinullle nullnullr its nullnullrrenullt applinullatinullnnullnull BSI 2011ISBN null7null 0 nullnull0 null7null0null 7InullS null1null100nullnull0Compliance with a British Standard cannot confer immun
19、ity from lenullal onulllinullationsnullThis British Standard nullas pnullnulllished nullnder the anullthnullritnull nullnull the Standards nullnulllinullnull and Stratenullnull nullnullmmittee nulln null1 nullnulltnullnuller 2011nullnullmendments issued since punulllicationDate Tenullt anullnullenul
20、lted Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-4:2011 BRITISH STANDARDThis page deliberately left blankProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-4:2011EUROPEAN STANDARD
21、 NORME EUROPENNE EUROPISCHE NORM EN 771-4 May 2011 ICS 91.100.30 Supersedes EN 771-4:2003English Version Specification for masonry units - Part 4: Autoclaved aerated concrete masonry units Spcifications pour lments de maonnerie - Partie 4: lments de maonnerie en bton cellulaire autoclav Festlegungen
22、 fr Mauersteine - Teil 4: Porenbetonsteine This European Standard was approved by CEN on 17 March 2011. 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 without any alteration.
23、 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 (English, French, German). A version in any other language made by tr
24、anslation 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, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fin
25、land, 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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES
26、KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 771-4:2011: EProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
27、-,-,-BS EN 771-4:2011EN 771-4:2011 (E) 2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms and definitions .64 Materials and manufacture .74.1 General 74.2 Materials of manufacture 85 Requirements for AAC masonry units 85.1 General 85.2 Dimensions and tolerances 85.2.1 Dimensions .85.
28、2.2 Tolerances 95.3 Configuration 105.4 Density . 115.4.1 Gross dry density . 115.4.2 Net dry density 115.4.3 Limit deviations . 125.5 Compressive strength 125.6 Thermal properties . 125.7 Durability . 125.8 Moisture movement 125.9 Water vapour permeability . 135.10 Water absorption 135.11 Reaction
29、to fire 135.12 Shear bond strength . 135.12.1 General . 135.12.2 Declaration based on fixed values 135.12.3 Declaration based on tests 135.13 Flexural bond strength . 146 Description, designation and classification of AAC masonry units . 146.1 Description and designation . 146.2 Classification . 147
30、 Marking 158 Evaluation of conformity 158.1 General . 158.2 Initial type tests . 158.3 Factory production control 168.3.1 General . 168.3.2 Testing and measuring equipment . 168.3.3 Production equipment 178.3.4 Raw materials 178.3.5 Production process 178.3.6 Finished product testing 178.3.7 Statist
31、ical techniques . 178.3.8 Marking and stock control of products 178.3.9 Traceability 178.3.10 Nonconforming products . 17Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-4:2011EN 771-4:2011 (E) 3 Annex A (normative) Sampling for initial type
32、 testing and for independent testing of consignments 18A.1 General . 18A.2 Sampling procedure for an assessment of product compliance . 18A.2.1 General . 18A.2.2 Random sampling . 18A.2.3 Representative sampling 18A.2.4 Dividing the sample . 19A.2.5 Number of units required for testing . 19Annex B (
33、normative) Cutting schemes . 20B.1 Cutting scheme for producing cubes or prisms from AAC masonry units in order to determine the dry density . 20B.2 Cutting scheme for producing cubes from AAC masonry units in order to determine compressive strength . 21Annex C (informative) Guidance on FPC frequenc
34、ies. 22Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 24ZA.1 Scope and relevant characteristics . 24ZA.2 Procedure(s) for attestation of conformity of autoclaved aerated concrete masonry units . 26ZA.2.1 System(s) of att
35、estation of conformity 26ZA.2.2 EC Certificate and Declaration of Conformity 27ZA.3 CE marking and labelling 28Bibliography 32Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-4:2011EN 771-4:2011 (E) 4 Foreword This document (EN 771-4:2011) h
36、as 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 by endorsement, at the latest by November 2011, and conflicting national stand
37、ards shall be withdrawn at the latest by November 2011. 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 document supersedes EN 77
38、1-4:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association and supports the essential requirements of the EU Construction Products Directive (89/106/EEC). For relationship with EU Directive(s), see informative Annex ZA, w
39、hich is an integral 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
40、concrete masonry 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
41、 are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
42、 Spain, Sweden, Switzerland and the United Kingdom. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-4:2011EN 771-4:2011 (E) 5 1 Scope This European Standard specifies the characteristics and performance requirements of autoclaved aerated co
43、ncrete (AAC) masonry units for which the main intended 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
44、insulation, sound insulation and the fabric of chimneys (excluding chimney flue units). It defines the performance related to e.g. strength, density, dimensional accuracy etc. and provides for the evaluation of conformity of the product to this European Standard. The marking requirement for products
45、 covered by this European Standard is included. This European Standard does not cover 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 stan
46、dard sizes for autoclaved aerated concrete units nor standard work dimensions and 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 ch
47、imney. 2 Normative references The following referenced documents 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 680, Determinati
48、on of the drying shrinkage of autoclaved aerated concrete EN 772-1:2011, Methods 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 initial rate of water absorption of clay masonry units EN 772-13, Methods of test for masonry units Part 13: Determinat
