SIST EN 14488-4:2005

Testing sprayed concrete - Part 4: Bond strength of cores by direct tension

This European Standard describes a means of determining the tensile bond between sprayed concrete and substrate of concrete or rock tested in a laboratory as a direct tension test. Bond strength is defined as the capacity to transfer tension between two layers. Bond strength is calculated as the ultimate tensile force divided by the stressed cross-sectional area of a core, drilled out of a sprayed concrete layer together with a portion of the substrate concrete or rock.

Prüfung von Spritzbeton - Teil 4: Haftfestigkeit an Bohrkernen bei zentrischem Zug

Dieses Dokument beschreibt Möglichkeiten für die Bestimmung der Haftfestigkeit zwischen Spritzbeton und dem Untergrund aus Beton oder Gestein, die im Laboratorium in einem reinen Zugversuch bestimmt wird. Die Haftfestigkeit ist als die Fähigkeit definiert, Zugkräfte zwischen zwei Schichten zu übertragen. Die Verbundfestigkeit wird berechnet als Zugfestigkeit dividiert durch die beanspruchte Querschnittsfläche eines Bohrkernes, der zusammen mit einem Teil des Beton- oder Gesteinsuntergrundes aus einer Spritzbetonschicht ausgebohrt wird.

Essais pour béton projeté - Partie 4 : Adhérence en traction directe sur carottes

La présente Norme Européenne décrit une méthode permettant de déterminer l?adhérence en traction entre le
béton projeté et le support du béton ou la roche soumis a un essai de traction directe en laboratoire. L?adhérence
se définit comme étant la capacité a transférer la traction entre deux couches. L?adhérence est calculée comme
étant l?effort ultime de traction divisé par la section soumise a la contrainte d?une carotte prélevée dans une couche
de béton projeté ainsi que dans une portion du support du béton ou de roche.

Preskušanje brizganega betona – 4. del: Sprijemna trdnost plasti z neposrednim nategom

General Information

• Status: Withdrawn
• Publication Date: 31-Aug-2005
• Withdrawal Date: 06-Apr-2008
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: BBB - Concrete, reinforced concrete and prestressed concrete
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 28-Mar-2008
• Due Date: 20-Apr-2008
• Completion Date: 07-Apr-2008
• Directive: 89/106/EEC - Construction products
• Ref Project: EN 14488-4:2005 - Testing sprayed concrete - Part 4: Bond strength of cores by direct tension

Relations

• Consolidated By: SIST EN 14488-4:2005+A1:2008 - Testing sprayed concrete - Part 4: Bond strength of cores by direct tension
• Effective Date: 18-Jan-2023
• Amended By: SIST EN 14488-4:2005/oprA1:2007 - Testing sprayed concrete - Part 4: Bond strength of cores by direct tension
• Effective Date: 01-Jul-2008
• Consolidated By: SIST EN 14488-4:2005+A1:2008 - Testing sprayed concrete - Part 4: Bond strength of cores by direct tension
• Effective Date: 19-Jan-2023
• Replaced By: SIST EN 14488-4:2005+A1:2008 - Testing sprayed concrete - Part 4: Bond strength of cores by direct tension
• Effective Date: 01-Jul-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Testing sprayed concrete - Part 4: Bond strength of cores by direct tensionPreskušanje brizganega betona – 4. del: Sprijemna trdnost plasti z neposrednim nategomEssais pour béton projeté - Partie 4 : Adhérence en traction directe sur carottesPrüfung von Spritzbeton - Teil 4: Haftfestigkeit an Bohrkernen bei zentrischem ZugTa slovenski standard je istoveten z:EN 14488-4:2005SIST EN 14488-4:2005en91.100.30ICS:SLOVENSKI
STANDARDSIST EN 14488-4:200501-september-2005







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14488-4June 2005ICS 91.100.30English versionTesting sprayed concrete - Part 4: Bond strength of cores bydirect tensionEssais pour béton projeté - Partie 4 : Adhérence en tractiondirecte sur carottesPrüfung von Spritzbeton - Teil 4: Verbundfestigkeit vonBohrkernen bei reinem ZugThis European Standard was approved by CEN on 17 April 2005.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14488-4:2005: E



EN 14488-4:2005 (E) 2 Contents page Foreword.3 1 Scope.4 2 Normative references.4 3 Principle.4 4 Apparatus.4 5 Test procedures.5 6 Results.5 7 Report.6 8 Precision.6



EN 14488-4:2005 (E) 3 Foreword This document (EN 14488-4:2005) 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 December 2005, and conflicting national standards shall be withdrawn at the latest by December 2007. This European Standard is part of a series concerned with testing sprayed concrete. This series EN 14488 Testing sprayed concrete includes the following parts:  Part 1: Sampling fresh and hardened concrete  Part 2: Compressive strength of young sprayed concrete  Part 3: Flexural strengths (first peak, ultimate and residual) of fibre reinforced beam specimens  Part 4: Bond strength of cores by direct tension  Part 5: Determination of energy absorption capacity of fibre reinforced slab specimens  Part 6: Thickness of concrete on a substrate  Part 7: Fibre content of fibre reinforced concrete This part does not supersede any other European Standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.



EN 14488-4:2005 (E) 4
1 Scope This European Standard describes a means of determining the tensile bond between sprayed concrete and substrate of concrete or rock tested in a laboratory as a direct tension test. Bond strength is defined as the capacity to transfer tension between two layers. Bond strength is calculated as the ultimate tensile force divided by the stressed cross-sectional area of a core, drilled out of a sprayed concrete layer together with
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