1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 771-1:2011Specification for masonry unitsPart 1: Clay masonry unitsBS EN 771-1:2011Copyright European Committee for Standardization Provided by IHS under license with CENNo
2、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-1:2011 BRITISH STANDARDNational ForewordThis British Standard is the UK implementation onull EN 771-1:2011null It snullpersedes BS EN 771-1:200nullnull nullhinullh is nullithdranullnnullEN 771-1:2011 is a null
3、harmoninullednull Enullropean Standard and nullnullllnull tanulles into anullnullonullnt the renullnullirements onull the Enullropean nullommission mandate null11nullnull nullasonrnull and related prodnullnulltsnull nullinullen nullnder the EU nullonstrnullnulltion nullrodnullnullts Direnulltinulle
4、nullnullnullnull10nullnullEEnullnullnull and is intended to lead to nullE marnullinnullnullEN 771-1 nullas the snullnullnullenullt onull transitional arrannullements anullreed nullnder the nullommission mandatenull In the UKnull the nullorrespondinnull national standards nullere:null BS nullnull21:1
5、nullnullnullnull Specification for clay bricksnullnull BS nullnullnullnull:1nullnullnullnull Specification for clay and calcium silicate modular bricksnullnullhinullh nullere nullithdranulln in 2007nullThe UK partinullipation in its preparation nullas entrnullsted nullnull Tenullhninullal nullommitt
6、ee Bnullnull1nullnull nullasonrnull and assonulliated testinnullnull to Snullnullnullommittee Bnullnull1nullnull1null nullasonrnull nullnitsnullA list onull ornullaninullations represented on this nullommittee nullan nulle onulltained on renullnullest to its senullretarnullnullEN 771-1 spenullinulle
7、s the nullharanullteristinulls and pernullormannulle renullnullirements nullor nulllanull masonrnull nullnits anullailanullle thronullnullhonullt the nullEN memnuller nullonullntriesnull It aims to do so in prodnullnullt pernullormannulle termsnull anulloidinnullas nullar as possinullle presnullript
8、inulle renullnullirements nullnullt permittinnull all the traditional desinullnations onull nulllanull nullnits anullailanullle thronullnullhonullt EnullropenullThe Standard distinnullnullishes nulletnulleen Hinullh Densitnull nullHDnull and nullonullDensitnull nullnullDnull nulllanull masonrnull nu
9、llnitsnull The manulloritnull onull nulllanull nullrinullnulls prodnullnulled in the UK are onull HD nulllassinullnullationnull nullne partinullnulllar nullarietnull onull HD tnullpe nulllanull nullrinullnull nullidelnull anullailanullle in the UK nullin tnullo nulllassesnull is the nulllanull ennul
10、lineerinnull nullrinullnullnull its nullharanullteristinulls are denullned in terms onullnullompressinulle strennullthnull nullater anullsorption and net drnull densitnull that are tanullnulllated later in the anullnullompannullinnull National Annenull to this standardnullThe UK National Annenull NA
11、 attanullhed to this standard pronullides an innullormatinulle nullommentarnull on the dinullnullerennulles nulletnulleen EN 771-1nullBS nullnull21 and BS nullnullnullnullnullInull nullE marnullinnull is pernullormednull the pronullednullres in Annenull nullA nullill applnullnullThe sinullninullnull
12、annulle onull the nullE marnullinnull is that the prodnullnullt mannullnullanulltnullrer nulllaims nullompliannulle nullith the nullharmoninullednull renullnullirements nullinullen in the normatinulle tenullt onull the prodnullnullt standardnull These relate to the essential renullnullirements onull
13、 the EU nullonstrnullnulltion nullrodnullnullts Direnulltinullenull Not all prodnullnullt nullharanullteristinulls need nenullessarilnull nulle nullinullen on the nullE marnullinnullnullnullnullt those prodnullnullt nullharanullteristinulls nullonullered nullnull renullnulllations in nullornulle in
14、eanullh EU nullemnuller Statenull nullhere the mannullnullanulltnullrer intends that the prodnullnullt nullill nulle nullsednull do need to nulle statednullIt nullannot nulle assnullmed that the denulllared nullalnulle onull a pernullormannulle nullharanullteristinull nullinullen nullor a masonrnull
15、 nullnit nullonnullorminnull to one part onull EN 771 nullan nulle direnulltlnull nullompared nullith the same pernullormannulle nullharanullteristinull nullor a masonrnull nullnit nullonnullorminnull to another part onull EN 771nullCopyright European Committee for Standardization Provided by IHS un
16、der license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-1:2011BRITISH STANDARDnull BSI 2011ISBN null7null 0 nullnull0 null7null0null nullInullS null1null100null2nullThis pnullnulllinullation does not pnullrport to innulllnullde all the nenulle
17、ssarnull pronullisions onull a nullontranulltnull Users are responsinullle nullor its nullorrenullt applinullationnullCompliance with a British Standard cannot confer immunity from legal onullligationsnullThis British Standard nullas pnullnulllished nullnder the anullthoritnull onull the Standards n
18、ullolinullnull and Stratenullnull nullommittee on null1 nullnulltonuller 2011nullnullmendmentsnullcorrigenda issued since punulllicationDate Tenullt anullnullenullted Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking pe
19、rmitted without license from IHS-,-,-BS EN 771-1:2011 BRITISH STANDARDThis page deliberately left blankCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-1:2011EUROPEAN ST
20、ANDARD NORME EUROP-ENNE EUROP.ISCHE NORM EN 771-1 May 2011 ICS 91.100.25 Supersedes EN 771-1:2003English Version Specification for masonry units - Part 1: Clay masonry units SpOcification pour OlOments de maPonnerie - Partie 1: Briques de terre cuite Festlegungen fTr Mauersteine - Teil 1: Mauerziege
21、l This European Standard was approved by CEN on 3 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. Up-to-date lists and bibliographical refe
22、rences 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 translation under the responsibility of a CE
23、N 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, Finland, France, Germany, Greece, Hungary, Ic
24、eland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United aingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Aven
25、ue Marnix 17, B-1000 Brussels b 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 771-1:2011: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking pe
26、rmitted without license from IHS-,-,-BS EN 771-1:2011EN 771-1:2011 (E) 2 Contents Page Foreword 4!1 Scope 5!2 Normative references 5!3 Terms and definitions .6!4 Materials and manufacture .9!5 Requirements for clay masonry units .9!5.1 General 9!5.2 LD units 10!5.2.1 Dimensions and tolerances (LD un
27、its) . 10!5.2.2 Configuration (LD units) 12!5.2.3 Density (LD units) . 14!5.2.4 Compressive strength (LD units) 14!5.2.5 Thermal properties (LD units) . 15!5.2.6 Durability (LD units) 15!5.2.7 Water absorption (LD units) 15!5.2.8 Active soluble salts content (LD units) 15!5.2.9 Moisture movement (LD
28、 units) 16!5.2.10 Reaction to fire (LD units) 16!5.2.11 Water vapour permeability (LD units) . 16!5.2.12 Bond strength (LD units) . 16!5.3 HD units . 17!5.3.1 Dimensions and tolerances (HD units) . 17!5.3.2 Configuration (HD units) 18!5.3.3 Density (HD units) . 19!5.3.4 Compressive strength (HD unit
29、s) 20!5.3.5 Thermal properties (HD units) . 21!5.3.6 Durability (HD units) . 21!5.3.7 Water absorption (HD units) 21!5.3.8 Initial rate of water absorption (HD units) 21!5.3.9 Active soluble salts content (HD units) 22!5.3.10 Moisture movement (HD units) 22!5.3.11 Reaction to fire (HD units) . 22!5.
30、3.12 Water vapour permeability (HD units) 22!5.3.13 Bond strength (HD units) . 23!6 Description, designation and classification of clay masonry units 23!6.1 Description and designation . 23!6.1.1 LD units 23!6.1.2 HD units . 24!6.2 Classification . 24!7 Marking 25!8 Evaluation of conformity 25!8.1 G
31、eneral . 25!8.2 Initial type testing . 25!8.3 Factory production control 26!8.3.1 General . 26!8.3.2 Testing and measuring equipment . 27!8.3.3 Production equipment 27!8.3.4 Raw materials 27!8.3.5 Production process 27!Copyright European Committee for Standardization Provided by IHS under license wi
32、th CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 771-1:2011EN 771-1:2011 (E) 3 8.3.6 Finished product testing . 27!8.3.7 Statistical techniques 27!8.3.8 Marking and stock control of products . 27!8.3.9 Traceability . 28!8.3.10 Nonconforming products . 28
33、!Annex A (normative) Sampling for initial type testing and for independent testing of consignments 29!A.1 General . 29!A.2 Sampling procedure 29!A.2.1 General . 29!A.2.2 Random sampling . 29!A.2.3 Representative sampling 29!A.2.4 Dividing the sample . 30!A.2.5 Number of units required for testing .
34、30!Annex B (informative) Additional information . 33!B.1 Use of clay masonry units 33!B.2 Durability 34!B.3 Freeze/thaw resistance . 34!B.3.1 General . 34!B.3.2 Masonry subjected to severe exposure 34!B.3.3 Masonry subjected to moderate exposure . 35!B.3.4 Masonry subjected to passive exposure 35!B.
35、4 Sulfate action on mortars and plasters . 35!B.5 Efflorescence and staining . 36!B.6 General guidance on the appearance of facing clay masonry units . 36!Annex C (informative) Guidelines for test frequencies for designing a FPC system to demonstrate conformity of finished products with the requirem
36、ents of the standard and the declaration of the manufacturer 37!Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive . 39!ZA.1 Scope and relevant characteristics . 39!ZA.2 Procedure(s) for attestation of conformity of clay mason
37、ry units . 42!ZA.2.1 System(s) of attestation of conformity 42!ZA.2.2 EC Certificate and Declaration of Conformity 43!ZA.3 CE marking and labelling 44!Bibliography 49!Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking pe
38、rmitted without license from IHS-,-,-BS EN 771-1:2011EN 771-1:2011 (E) 4 Foreword This document (EN 771-1:2011) 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 p
39、ublication of an identical text or by endorsement, at the latest by November 2011, and conflicting national standards 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 CE
40、NELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 771-1:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Constr
41、uction Products Directive (89/106/EEC) For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This European Standard also takes into account the general rules for unreinforced and reinforced masonry in Eurocode 6. EN 771, Specification for masonr
42、y units consists of: Part 1: Clay masonry units Part 2: Calcium silicate masonry units Part 3: Aggregate 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
43、 to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
44、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United bingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted wi
45、thout license from IHS-,-,-BS EN 771-1:2011EN 771-1:2011 (E) 5 1 Scope This European Standard specifies the characteristics and performance requirements for masonry units manufactured from clay for use in masonry construction (e.g. facing and rendered masonry, loadbearing or non-loadbearing masonry
46、structures, including internal linings and partitions, for building and civil engineering). This European Standard is intended to apply to two groups of fired-clay masonry units: a) LD units (see 3.4 and 5.2) comprising: 1) clay masonry units with a gross dry density of less than or equal to 1 000 k
47、g/m3for use in protected masonry. b) HD units (see 3.5 and 5.3) comprising: 1) all clay masonry units for use in unprotected masonry; 2) clay masonry units with a gross dry density of greater than 1 000 kg/m3for use in protected masonry. This European Standard includes those clay masonry units of an
48、 overall non-rectangular parallelepiped shape. It defines the performance related to e.g. dimensional tolerances, strength, density measured according to the corresponding test methods contained in separate European Standards. It provides for the evaluation of conformity of the product to this Europ
49、ean Standard. The marking requirement for products covered by this European Standard is included. This European Standard does not specify standard sizes for clay masonry units, nor does it specify standard work dimensions, angles and radii of specially shaped clay masonry units. This document does not include method of measurement, tolerance and r
