SIST EN 12350-5:2009
(Main)Testing fresh concrete - Part 5: Flow table test
Testing fresh concrete - Part 5: Flow table test
This European standard specifies a method for determining the flow of fresh concrete. It is not applicable to self-compacting concrete, foamed concrete or no-fines concrete, nor to concrete with maximum aggregate size exceeding 63 mm.
NOTE The flow test is sensitive to changes in the consistency of concrete which correspond to flow values between 340 mm and 600 mm. Beyond these extremes the flow table test may be unsuitable and other methods of determining the consistence should be considered.
Prüfung von Frischbeton - Teil 5: Ausbreitmaß
Diese Europäische Norm legt ein Verfahren zur Bestimmung des Ausbreitmaßes von Frischbeton fest. Die Prüfung gilt nicht für selbstverdichtenden Beton, Schaumbeton, Beton ohne Feinkorn oder für Beton mit einem Größtkorn der Gesteinskörnung von mehr als 63 mm.
ANMERKUNG Der Ausbreitversuch ist geeignet für Änderungen der Konsistenz von Beton, die einem Ausbreitmaß zwischen 340 mm und 600 mm entsprechen. Über diese Werte hinaus kann die Messung des Ausbreitmaßes ungeeignet sein, und es sollten andere Verfahren für die Bestimmung der Konsistenz in Erwägung gezogen werden.
Essai pour béton frais - Partie 5: Essai d'étalement à la table à chocs
La présente Norme européenne définit une méthode de détermination de l’étalement du béton frais. Elle n’est pas applicable aux bétons auto-plaçants, aux bétons cellulaires, aux bétons caverneux ou aux bétons dont la dimension maximale du plus gros granulat est supérieure à 63 mm.
NOTE L’essai d’étalement permet de mesurer des variations de la consistance du béton correspondant à des valeurs d’étalement comprises entre 340 mm et 600 mm. Au delà de ces valeurs limites, l’essai d’étalement peut ne pas être significatif, et il convient d’envisager l’utilisation d’autres méthodes de détermination de la consistance.
Preskušanje svežega betona - 5. del: Preskus z razlezom
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskušanje svežega betona - 5. del: Preskus z razlezomPrüfung von Frischbeton - Teil 5: AusbreitmaßEssai pour béton frais - Partie 5: Essai d'étalement à la table à chocsTesting fresh concrete - Part 5: Flow table test91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:Ta slovenski standard je istoveten z:EN 12350-5:2009SIST EN 12350-5:2009en,fr01-julij-2009SIST EN 12350-5:2009SLOVENSKI
STANDARDSIST EN 12350-5:20011DGRPHãþD
SIST EN 12350-5:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12350-5March 2009ICS 91.100.30Supersedes EN 12350-5:1999
English VersionTesting fresh concrete - Part 5: Flow table testEssais pour béton frais - Partie 5: Essai d'étalement à latable à chocsPrüfung von Frischbeton - Teil 5: AusbreitmaßThis European Standard was approved by CEN on 20 January 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12350-5:2009: ESIST EN 12350-5:2009
EN 12350-5:2009 (E) 2 Contents Page Foreword .3 1 Scope .5 2 Normative references .5 3 Principle .5 4 Apparatus .5 5 Sampling .8 6 Procedure .9 7 Test results . 10 8 Test report . 10 9 Precision . 10
SIST EN 12350-5:2009
EN 12350-5:2009 (E) 3 Foreword This document (EN 12350-5:2009) has been prepared by Technical Committee CEN/TC 104 “Concrete and related products”, 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 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. 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 12350-5:1999. This standard is one of a series concerned with testing concrete. This series EN 12350 includes the following parts.
Part 1: Sampling; Part 2: Slump-test;
Part 3: Vebe test;
Part 4: Degree of compactability; Part 5: Flow table test;
Part 6: Density; Part 7: Air content - Pressure methods; Part 8: Self-compacting concrete - Slump-flow test (in preparation); Part 9: Self-compacting concrete - V-funnel test (in preparation); Part 10: Self-compacting concrete - L-box test (in preparation); Part 11: Self-compacting concrete - Sieve segregation test (in preparation); Part 12: Self-compacting concrete - J-ring test (in preparation).
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 concrete by wearing suitable protective clothing. If cement or concrete enters the eye, immediately wash it out thoroughly with clean water and seek medical treatment without delay. Wash wet concrete off the skin immediately. SIST EN 12350-5:2009
EN 12350-5:2009 (E) 4 The following amendments have been made to the 1999-10 edition of this standard: editorial revision indication that the test is not applicable for self-compacting concrete clarification of carrying out the test and the time for each cycle of lifting and dropping the mould to be between 1 s and 3 s (was not less than 2 s nor more than 5 s). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, 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, Switzerland and the United Kingdom. SIST EN 12350-5:2009
EN 12350-5:2009 (E) 5
1 Scope This European standard specifies a method for determining the flow of fresh concrete. It is not applicable to self-compacting concrete, foamed concrete or no-fines concrete, nor to concrete with maximum aggregate size exceeding 63 mm. NOTE The flow test is sensitive to changes in the consistency of concrete, which correspond to flow values between 340 mm and 600 mm.
Beyond these extremes the flow table test may be unsuitable and other methods of determining the consistence should be considered. 2 Normative references The following referenced documents are indispensable for 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 12350-1, Testing fresh concrete — Part 1: Sampling 3 Principle This test determines the consistency of fresh concrete by measuring the spread of concrete on a flat plate which is subjected to jolting. 4 Apparatus 4.1 Flow table (see Figure 1) consisting of: a moving table made from a flat plate with a plane area of (700 ± 2) mm × (700 ± 2) mm, on which concrete can be placed, hinged to a rigid base onto which it can fall from a fixed height. The flow table top shall have a flat metal surface with a minimum thickness of 2 mm. The metal surface shall not be readily attacked by cement paste or be liable to rusting. The flow table top shall have a mass of (16 ± 0,5) kg and may be detachable using a pin-hinge to allow weighing. The construction of the plate shall be such as to prevent distortion of the upper surface. The table top shall be hinged to the base in such a way that no aggregate can become trapped between the hinged surfaces. The centre of the table shall be scribed with a cross, the lines of which run parallel to the edges of the plate and with a central circle (210 ± 1) mm
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