BS EN 12390-1-2021 硬化混凝土试验 样品和模型的形状、尺寸和其它要求.pdf

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EUROPEANSTANDARD EN12390-1 NORMEEUROPEENNE EUROPAISCHENORM ICS 91.100.30 Supersedes EN 12390-1:2012
English Version Testinghardened concrete-Part 1:Shape,dimensions and otherrequirementsfor specimens and moulds Forme, dimensions et autres exigences Essais pour beton durei - Partie 1 : Prufung von Festbeton - Teil 1: Form, Mafe und andere Anforderungen fuir Probekorper und Formen aux eprouvettes et aux moules This European Standard was approved by CEN on 7 June 2021. this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical CEN members are bound to ply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving or to any CEN member. references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under theresponsibilityof a CENmember into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. Estoniailand,FraGmnye,Haryand,lan taly,LatviLihna,LgMa CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, NethearwayPlanPalitMaiaiabilakiaii Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPVISCHES KOMITEE FOR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
2021 CENworldwide for CEN national Members All rights of exploitation in any form and by any means reserved Ref. No. EN 12390-1:2021: E
BS EN 12390-1:2021 EN 12390-1:2021 (E)
Contents Page European foreword 1Scope.5 2Normative references.5 3Terms and definitions.5 4Shape,dimensions and tolerances of specimen.5 4.1General.5 4.2Cubes.6
4.2.1Nominal sizes..6 4.2.2Designated sizes.6 4.2.3Tolerances.6 4.3Cylinders.6 4.3.1Nominal sizes.6 4.3.2Designated sizes.7 4.3.3Tolerances.7 4.3.4Applicability of tolerances.7 4.4Prisms.7
4.4.1Nominal sizes.7 4.4.2Designated sizes.7 4.4.3Tolerances.7 4.5Measurement of dimensions and shape of specimens.8 5Moulds.8
5.1General.8 5.2Calibrated moulds.8 5.2.1General8 5.2.2Calibrated moulds for cubical specimens.9 5.2.3Calibrated moulds for cylindrical specimens.6 5.2.4Calibrated moulds for prismatic specimens.9 Annex A (normative) Application of EN ISo 1101 to concrete test specimens and moulds.10 Annex B (normative) Assessment of flatness of specimens and moulds.12
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BS EN 12390-1:2021 EN 12390-1:2021 (E)
Europeanforeword This document (EN 12390-1:2021) has been prepared by Technical Committee CEN/TC 104 *Concrete and related products", the secretariat of which is held by SN. This European Standard shall be given the status of a national standard,either by publication of an identical text orby endorsement,at the latest by January 2022,and conflicting national standards shall be withdrawn at the latest by January 2022. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12390-1:2012. The following amendments have been made to the former edition: -- editorial revision; -- increases in the allowable tolerances for flatness of moulds and the dimensions of the specimens which reflect current industry practice. This document is one of a series on testing concrete. EN 12390, Testing hardened concrete, consists of the following parts: -Part 1: Shope, dimensions and other requirements for specimens and moulds; -Part 2: Making and curing specimens for strength tests; Part 3: Compressive strength of test specimens; --Part 4: Compressive strength Specification for testing machines; -Part 5: Flexural strength of test specimens; --Part6:Tensile splitting strengthof test specimens --Part 7: Density of hardened concrete; -Part 8: Depth of penetration of water under pressure; -Part 10: Determination of the carbongtion resistance of concrete at atmospheric levelsof carbon dioxide; -Part 1: Determination of the chloride resistance of concrete, unidirectional difusion; Part 12:Determination of the potentialcarbonation resistance of concrete:Accelerated carbonation method; --Part 13: Determination of secant modulus of elasticity in pression; Part 14: Semi-adiabatic method for the determination of heat released by concrete during its hardening process; -Part 15: Adiabatic method forthe determination ofheat released by concreteduring its hardening process; -Part 16: Determination of shrinkage of concrete; --Part 17: Determination of creep of concrete in pression; -Part 18: Determination of the chloride migration coefficient (in preparation). This document recognizes alternative approaches towards obtaining test specimens ofthe correct sizes and shapes. The first is to use moulds whose lives are lim...

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