EN 12504-2:2001

Testing concrete in structures - Part 2: Non-destructive testing - Determination of rebound number

This standard specifies a method for determining the rebound number of an area of hardened concrete
using a spring-driven steel hammer.
   NOTE 1: The rebound number determined by this method can be used to assess the uniformity of
   concrete in situ, to delineate zones or areas of poor quality or deteriorated concrete in structures.
   NOTE 2: The test method is not intended as an alternative for the compressive strength determina-
   tion of concrete (EN 12390-3), but with suitable correlation, it can provide an estimate of in situ
   strength.

Prüfung von Beton in Bauwerken - Teil 2: Zerstörungsfreie Prüfung - Bestimmung der Rückprallzahl

Diese Norm enthält Festlegungen für ein Verfahren zur Bestimmung der Rückprallzahl einer Fläche aus Festbeton
bei Prüfung mit einem Federhammer aus Stahl.
   ANMERKUNG 1: Die nach diesem Verfahren bestimmte Rückprallzahl kann für den Nachweis der Gleichmä-
   ßigkeit von Ortbeton sowie für die Darstellung von Bereichen oder Flächen geringer Güte oder für beschädig-
   ten Beton in Konstruktionen verwendet werden.
ANMERKUNG 2: Das Prüfverfahren gilt nicht als Alternative für die Bestimmung der Druckfestigkeit von Beton
(EN 12390-3); mit Hilfe geeigneter Korrelationen kann es jedoch als Schätzung der Festigkeit von Ortbeton
dienen.

Essais pour béton dans les structures - Partie 2: Essais non-destructifs - Détermination de l'indice de rebondissement

La présente Norme européenne spécifie une méthode permettant de déterminer l'indice de rebondissement d'une surface de béton durci, à l'aide d'un marteau en acier projeté par ressort.
NOTE 1   L'indice de rebondissement déterminé à l'aide de la présente méthode peut être utilisé pour évaluer l'homogénéité du béton in situ, pour délimiter des zones ou surfaces de faible qualité ou des détériorations de la structure du béton.
NOTE 2   La présente méthode d'essai ne peut pas se substituer aux essais pour la détermination de la résistance du béton à la compression (EN 12390 3) ; cependant, elle peut fournir une estimation d'une résistance du béton in situ si des corrélations fiables sont établies.

Preskušanje betona v konstrukcijah - 2. del: Neporušitveno preskušanje - Določevanje sklerometričnega indeksa

General Information

• Status: Withdrawn
• Publication Date: 05-Jun-2001
• Withdrawal Date: 11-Sep-2012
• 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: 9960 - Withdrawal effective - Withdrawal
• Start Date: 12-Sep-2012
• Completion Date: 12-Sep-2012
• 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
• Ref Project: SIST EN 12504-2:2002 - Testing concrete in structures - Part 2: Non-destructive testing - Determination of rebound number

Relations

• Replaced By: EN 12504-2:2012 - Testing concrete in structures - Part 2: Non-destructive testing - Determination of rebound number
• Effective Date: 18-Jun-2011

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2002
3UHVNXãDQMHEHWRQDYNRQVWUXNFLMDKGHO1HSRUXãLWYHQRSUHVNXãDQMH
'RORþHYDQMHVNOHURPHWULþQHJDLQGHNVD
Testing concrete in structures - Part 2: Non-destructive testing - Determination of
rebound number
Prüfung von Beton in Bauwerken - Teil 2: Zerstörungsfreie Prüfung - Bestimmung der
Rückprallzahl
Essais pour béton dans les structures - Partie 2: Essais non-destructifs - Détermination
de l'indice de rebondissement
Ta slovenski standard je istoveten z: EN 12504-2:2001
ICS:
19.100 Neporušitveno preskušanje Non-destructive testing
91.100.30 Beton in betonski izdelki Concrete and concrete
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 12504-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2001
ICS 91.100.30
English version
Testing concrete in structures - Part 2: Non-destructive testing -
Determination of rebound number
Essais pour béton dans les structures - Partie 2: Essais Prüfung von Beton in Bauwerken - Teil 2: Zerstörungsfreie
non destructifs - Détermination de l'indice de Prüfung - Bestimmung der Rückprallzahl
rebondissement
This European Standard was approved by CEN on 17 April 2000.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12504-2:2001 E
worldwide for CEN national Members.

Page 2
Contents
Page
Foreword . 3
1 Scope . 3
2 Normative references . 3
3 Principle . 3
4 Apparatus . 4
5 Test area . 4
6 Procedure . 4
7 Test result . 5
8 Test report . 5
9 Precision . 5

Page 3
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 104 "Concrete (performance,
production, placing and compliance criteria)", 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 2001, and conflicting national standards shall be withdrawn at the latest
by December 2003.
This standard is one of a series of test methods for concrete.
It is based on the International Standard ISO (DIS) 8045 – Concrete, hardened -Determination of rebound number
using the rebound hammer, and reference has been made to ASTM C805 – Rebound number of hardened concrete.
The standard has been framed around the use of a Type N, spring driven steel hammer, originally designed by
Schmidt.
A draft for this standard was published in 1996 for CEN enquiry as prEN 12398. It was one of a series of individually
numbered test methods for fresh or hardened concrete. For convenience it has now been decided to combine these
separate draft standards into three new standards with separate parts for each method, as follows:
- Testing fresh concrete (EN 12350)
- Testing hardened concrete (EN 12390)
- Testing concrete in structures (EN 12504)
This series EN 12504 includes the following parts where the brackets give the numbers under which particular test
methods were published for CEN enquiry:
EN 12504 Testing concrete in structures
Part 1: Cored specimens - Taking, examining and testing in compersion (former prEN 12504: 1996)
Part 2: Non-destructive testing - Determination of rebound number (former prEN 12398: 1996)
Part 3: Determination of pull-out force (former prEN 12399: 1996)
Part 4: Determination of ultrasonic pulse velouty (former prEN 12396: 1998)
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerla
...