EN 12350-12:2010

Testing fresh concrete - Part 12: Self-compacting concrete - J-ring test

This European Standard specifies the procedure for determining the passing ability (measured by the blocking step), the flow spread and t500J flow time of self-compacting concrete as the concrete flows through the J-ring.
The test is not suitable when the maximum size of aggregate exceeds 40 mm.
NOTE   In respect to the relationship between aggregate size and bar spacing, the test is intended to assess the passing ability of the concrete proposed with the bar spacing typically in the works. If the concrete blocks then the aggregate size could be too large for the particular application.

Prüfung von Frischbeton - Teil 12: Selbstverdichtender Beton - Blockierring-Versuch

Essai pour béton frais - Partie 12: Béton auto-plaçant - Essai d'écoulement à l'anneau

La présente norme spécifie la méthode de détermination de l'aptitude à l'écoulement en milieu confiné (mesurée par le palier de blocage), l'étalement et le temps d'étalement t500J du béton auto-plaçant lorsque le béton s'écoule à travers un anneau supportant une grille d’armatures.
Cet essai ne convient pas lorsque le diamètre maximum des granulats excède 40 mm.
NOTE   En ce qui concerne la relation entre le diamètre des granulats et l’espacement des barres, l’essai est destiné à évaluer le taux de remplissage du béton proposé pour un espacement des barres représentatif des ouvrages à bétonner. Si le béton se bloque, il se peut que le diamètre des granulats soit trop important pour cette application.

Preskušanje svežega betona - 12. del: Samozgoščevalni beton - Preskus z J-obročem

Ta evropski standard določa postopek za ugotavljanje zmožnosti prehodnosti (merjene z ukrepom blokiranja), obseg razleza in t500J čas razleza za samozgoščevalni beton, ko se beton pretaka skozi J-obroč. Ta preskus ni ustrezen, če največja velikost agregata presega 40 mm.

General Information

• Status: Published
• Publication Date: 20-Jul-2010
• Withdrawal Date: 30-Jan-2011
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: CEN/TC 104 - Concrete ( performance, production, placing and compliance criteria )
• Drafting Committee: CEN/TC 104/SC 1 - Revision of ENV 206
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 18-Jun-2021
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/128 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on products for concrete, mortar and grout
• Ref Project: SIST EN 12350-12:2010 - Testing fresh concrete - Part 12: Self-compacting concrete - J-ring test

Relations

• Revised: EN 12390-1:2012 - Testing hardened concrete - Part 1: Shape, dimensions and other requirements for specimens and moulds
• Effective Date: 21-May-2011

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.REURþHPPrüfung von Frischbeton - Teil 12: Selbstverdichtender Beton - Blockierring-VersuchEssai pour béton frais - Partie 12 : Béton auto-plaçant - Essai d'écoulement à l'anneauTesting fresh concrete - Part 12: Self-compacting concrete - J-ring test91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:Ta slovenski standard je istoveten z:EN 12350-12:2010SIST EN 12350-12:2010en,fr,de01-december-2010SIST EN 12350-12:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12350-12
July 2010 ICS 91.100.30 English Version
Testing fresh concrete - Part 12: Self-compacting concrete - J-ring test
Essai pour béton frais - Partie 12 : Béton auto-plaçant - Essai d'écoulement à l'anneau
Prüfung von Frischbeton - Teil 12: Selbstverdichtender Beton - Blockierring-Versuch This European Standard was approved by CEN on 20 June 2010.
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.
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, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12350-12:2010: ESIST EN 12350-12:2010

The test is not suitable when the
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