BS EN 12269-2-2010 Determination of the bond behaviour between reinforcing steel and autoclaved aerated concrete by the beam test - Long term test《梁试验对加筋钢和高压蒸养加气混凝土之间粘结性的测定 长期试验》.pdf
《BS EN 12269-2-2010 Determination of the bond behaviour between reinforcing steel and autoclaved aerated concrete by the beam test - Long term test《梁试验对加筋钢和高压蒸养加气混凝土之间粘结性的测定 长期试验》.pdf》由会员分享,可在线阅读,更多相关《BS EN 12269-2-2010 Determination of the bond behaviour between reinforcing steel and autoclaved aerated concrete by the beam test - Long term test《梁试验对加筋钢和高压蒸养加气混凝土之间粘结性的测定 长期试验》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、BS EN12269-2:2010ICS 91.080.40; 91.100.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDDetermination ofthe bond behaviourbetween reinforcingsteel and autoclavedaerated concrete by thebeam testPart 2: Long term testThis British Standardwas published under theau
2、thority of the StandardsPolicy and StrategyCommittee on 31 March2010 BSI 2010ISBN 978 0 580 64059 9Amendments/corrigenda issued since publicationDate CommentsBS EN 12269-2:2010National forewordThis British Standard is the UK implementation of EN 12269-2:2010. Itsupersedes BS EN 12269-2:2003 which is
3、 withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/523, Prefabricated components of reinforced autoclavedaerated concrete and lightweight aggregate concrete with open structure.A list of organizations represented on this committee can be obtained onrequest to it
4、s secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 12269-2:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
5、 12269-2 March 2010 ICS 91.080.40; 91.100.30 Supersedes EN 12269-2:2003English Version Determination of the bond behaviour between reinforcing steel and autoclaved aerated concrete by the beam test - Part 2: Long term test Dtermination du comportement dadhrence entre les barres darmature et le bton
6、cellulaire autoclav selon la mthode dessai de poutre - Partie 2 : Essai de longue dure Bestimmung des Verbundverhaltens zwischen Bewehrungsstahl und dampfgehrtetem Porenbeton mit Hilfe der Balkenprfung - Teil 2: Langzeitprfverfahren This European Standard was approved by CEN on 23 January 2010. CEN
7、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 references concerning such national standards may be obtained on appli
8、cation to the CEN 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 Management Centre h
9、as 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, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
10、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and
11、by any means reserved worldwide for CEN national Members. Ref. No. EN 12269-2:2010: EBS EN 12269-2:2010EN 12269-2:2010 (E) 2 Contents Page Foreword . 31 Scope . 42 Normative references . 43 Terms and definitions 44 Principle . 45 Apparatus 46 Test specimens . 56.1 Sample . 56.2 Shape and size of tes
12、t specimens 66.3 Number of test specimens . 76.4 Preparation of test specimens 77 Testing procedure. 87.1 Cyclic loading 87.2 Final short term test . 87.3 Dry density, moisture content and compressive strength of AAC 88 Test results 99 Test report . 9Bibliography . 11Figures Figure 1 Test specimen a
13、nd loading arrangement 6Figure 2 Sampling scheme for test specimens 7BS EN 12269-2:2010EN 12269-2:2010 (E) 3 Foreword This document (EN 12269-2:2010) has been prepared by Technical Committee CEN/TC 177 “Prefabricated reinforced components of autoclaved aerated concrete or lightweight aggregate concr
14、ete with open structure”, the secretariat of which is held by DIN. 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 September 2010, and conflicting national standards shall be withdrawn at the late
15、st by September 2010. 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 12269-2:2003. The European Standard
16、EN 12269 consists of the following parts: Part 1: Short term test; Part 2: Long term test. In order to meet the performance requirements as laid down in the product standard for prefabricated components of autoclaved aerated concrete, a number of standardized test methods are necessary. The main cha
17、nges with respect to EN 12269-2:2003 are listed below: a) the clause “Terms and definitions“ has been added; b) the normative references have been updated; c) provisions on the conditioning of test specimens have been added; d) the clause on “Apparatus“ has been adapted to take account of the latest
18、 findings; e) “long term loading“ has been replaced by “cyclic loading“ in the clause on “Testing procedure“; f) the requirements for the test report have been expanded. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to im
19、plement 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, Spain, Sweden,
20、Switzerland and the United Kingdom. BS EN 12269-2:2010EN 12269-2:2010 (E) 4 1 Scope This document specifies a method of determining the long term bond behaviour between reinforcing bars and autoclaved aerated concrete (AAC) in prefabricated reinforced components according to EN 12602. The test metho
21、d is conceived to obtain values for the long term bond strength fb,lwhich are obtained in a final short term test. The test is performed for different combinations of AAC type, bar shape, and corrosion protection systems. 2 Normative references The following referenced documents are indispensable fo
22、r 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 678, Determination of the dry density of autoclaved aerated concrete EN 679, Determination of the com
23、pressive strength of autoclaved aerated concrete EN 1353, Determination of moisture content of autoclaved aerated concrete EN 12269-1:2000, Determination of the bond behaviour between reinforcing steel and autoclaved aerated concrete by the “beam test” Part 1: Short term test 3 Terms and definitions
24、 For the purposes of this document, the following terms and definitions apply. 3.1 long term bond strength fb,lbond stress (residual bond strength) achieved at the final short term test 4 Principle The long term bond behaviour of reinforcing bars embedded in AAC is investigated in two steps as follo
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