SIST EN 14651:2005+A1:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Test method for metallic fibre concrete - Measuring the flexural tensile strength (limit of proportionality (LOP), residual)Preskusna metoda za beton s kovinskimi vlakni - Merjenje upogibne natezne trdnosti (meja proporcionalnosti (LOP), zaostale)Méthode d'essai du béton de fibres métalliques - Mesurage de la résistance a la traction par flexion (limite de proportionnalité (LOP), résistance résiduelle)Prüfverfahren für Beton mit metallischen Fasern - Bestimmung der Biegezugfestigkeit (Proportionalitätsgrenze, residuelle Biegezugfestigkeit)Ta slovenski standard je istoveten z:EN 14651:2005+A1:2007SIST EN 14651:2005+A1:2008en,fr,de91.100.30ICS:SLOVENSKI
STANDARDSIST EN 14651:2005+A1:200801-marec-2008

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14651:2005+A1
September 2007 ICS 91.100.30 Supersedes EN 14651:2005 English Version
Test method for metallic fibre concrete - Measuring the flexural tensile strength (limit of proportionality (LOP), residual)
Méthode d'essai du béton de fibres métalliques - Mesurage de la résistance à la traction par flexion (limite de proportionnalité (LOP), résistance résiduelle)
Prüfverfahren für Beton mit metallischen Fasern - Bestimmung der Biegezugfestigkeit (Proportionalitätsgrenze, residuelle Biegezugfestigkeit) This European Standard was approved by CEN on 3 April 2005 and includes Amendment 1 approved by CEN on 16 August 2007.
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 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 (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 has the same status as the official versions.
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Expressions for limit of proportionality and for residual flexural tensile strength.16

ML bending moment corresponding to the load at LOP b width of test specimen fR,j residual flexural tensile strength, j = 1, 2, 3 or 4 fct,Lf LOP hsp distance between the tip of the notch and the top of the test specimen in the mid-span section l length of span x width of notch y distance between bottom of test specimen and axis of displacement transducer δ deflection δFL deflection at LOP δj deflection value, j = 1, 2, 3 or 4 4.2 Abbreviations CMOD crack mouth opening displacement LOP limit of proportionality
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