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1、BRITISH STANDARDBS EN12390-5:2009Testing hardenedconcretePart 5: Flexural strength of test specimensICS 91.100.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 12390-5:2009National forewordThis British Standard is the UK implementation of EN 12390-5:2009. It supersedes B
2、S EN 12390-5:2000 and which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/517/1, Concrete production and testing.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include
3、 all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2009 BSI 20
4、09ISBN 978 0 580 58798 6Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARD NORME EUROPENNEEUROPISCHE NORMEN 12390-5February 2009ICS 91.100.30Supersedes EN 12390-5:2000English VersionTesting hardened concrete - Part 5: Flexural strength of test specimensEssai pour bton durci
5、 - Partie 5: Rsistance la flexion sur prouvettesPrfung von Festbeton - Teil 5: Biegezugfestigkeit vonProbekrpernThis European Standard was approved by CEN on 27 December 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Euro
6、pean 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 Management Centre or to any CEN member.This European Standard exists in three official versions (Englis
7、h, 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 Management Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, C
8、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 STANDARDIZATION
9、C OM I T EUR OP EN DE NOR M AL I S ATI ON EUR OP I S C HES KOM I TEE F R NOR M UNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members.Ref. No. EN 12390-5:2009: EContentsPageForeword.31Scope .52Normative references .53Principle .54Apparatus .55Test specimens .66Procedures .67Expression of results .78Test report .79Precision .8Annex A (normative) Loading by a centre-point load . 10ForewordThis document (EN 12390-5:2009) has been p
