BS-EN-12390-2-2000.pdf
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1、BRITISH STANDARD BS EN 12390-2:2000 Incorporating Corrigendum No. 1 Testing hardened concrete Part 2: Making and curing specimens for strength tests The European Standard EN 12390-2:2000 has the status of a British Standard ICS 91.100.30 ? BS EN 12390-2:2000 This British Standard, having been prepar
2、ed under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 December 2000 BSI 27 March 2003 ISBN 0 580 36604 9 National foreword This British Standard is the official English language vers
3、ion of EN 12390-2:2000. Together with BS EN 12390-1:2000, it will supersede BS 1881-108:1983, BS 1881-109:1983 and BS 1881-110:1983, which will be withdrawn in December 2003 when the full package of concrete standards is available. The UK participation in its preparation was entrusted by Technical C
4、ommittee B/517, Concrete, to Subcommittee B/517/1, Concrete production and testing, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European
5、publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all th
6、e necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on th
7、e interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The B
8、SI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 14343 Corrigendum No. 1 27 March 2003Addition of supersession details to the national foreword EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1239
9、0-2 October 2000 ICS 91.100.30 English version Testing hardened concrete - Part 2: Making and curing specimens for strength tests Essai pour bton durci - Partie 2: Confection et conservation des prouvettes pour essais de rsistance Prfung von Festbeton - Teil 2: Herstellung und Lagerung von Probekrpe
10、rn fr Festigkeitsprfungen This European Standard was approved by CEN on 3 February 2000. 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 lis
11、ts and bibliographical references concerning such national standards may be obtained on application to the 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 respons
12、ibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherl
13、ands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2000 CEN All rights of exploitation in any form and by any means reserved
14、 worldwide for CEN national Members. Ref. No. EN 12390-2:2000 E Page 2 EN 12390-2:2000 BSI 27 March 2003 Contents Page Foreword.3 1 Scope3 2 Normative references.4 3 Apparatus.4 4 Sampling 4 5 Procedures.4 6 Report.6 Page 3 EN 12390-2:2000 BSI 27 March 2003 Foreword This European Standard has been p
15、repared by Technical Committee CEN/TC 104, Concrete (performance, production, placing and compliance criteria), 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 lates
16、t by April 2001, and conflicting national standards shall be withdrawn at the latest by December 2003. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, D
17、enmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This standard is one of a series of test methods for testing concrete. It is based on the draft International Standard ISO 2736/2 - Concret
18、e tests - Test specimens - Part 2: Making and curing of test specimens for strength tests. The results of a recent laboratory inter-comparison, part-funded by the EC under the Measurement and Testing Programme contract MATI-CT-94-0043, have been taken into account. The compaction of specimens in the
19、 moulds using hand tamping, vibrating table, or internal (poker) vibrator are accepted as equivalent. However, the use of an internal vibrator to compact specimens containing entrained air should be done only with caution. Curing specimens in a closely regulated humidity chamber is recognised as bei
20、ng equivalent to curing in water. A draft for this standard was published in 1996 for CEN enquiry as prEN 12379. It was one of a series of individually numbered test methods for fresh or hardened concrete. For convenience it has now been decided to combine these separate draft standards into three n
21、ew standards with separate parts for each method, as follows: - Testing fresh concrete (EN 12350) - Testing hardened concrete (EN 12390) - Testing concrete in structures (EN 12504) The series EN 12390 includes the following parts where the brackets give the numbers under which particular test method
22、s were published for CEN enquiry: EN 12390 Testing hardened concrete - Part 1: Shape, dimensions and other requirements of specimens and moulds (former prEN 12356:1996) Part 2: Making and curing specimens for strength tests (former prEN 12379:1996) Part 3: Compressive strength of test specimens (for
23、mer prEN 12394:1996) Part 4: Compressive strength - Specification for testing machines (former prEN 12390:1996) Part 5: Flexural strength of test specimens (former prEN 12359:1996) Part 6: Tensile splitting strength of test specimens (former prEN 12362:1996) Part 7: Density of hardened concrete (for
24、mer prEN 12363:1996) Part 8: Depth of penetration of water under pressure (former prEN 12364:1996) Caution: When cement is mixed with water, alkali is released. Take precautions to avoid dry cement entering the eyes, mouth and nose whilst mixing concrete. Prevent skin contact with wet cement or conc
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