EN 12504-4:2004

Testing concrete - Part 4: Determination of ultrasonic pulse velocity

This European Standard specifies a method for the determination of the velocity of propagation of pulses of ultrasonic longitudinal waves in concrete, for a number of applications.

Prüfung von Beton in Bauwerken - Teil 4: Bestimmung der Ultraschallgeschwindigkeit

Dieses Dokument legt ein Verfahren zur Bestimmung der Ausbreitungsgeschwindigkeit von Ultraschall-Longitudinalwellen aus der Laufzeit von Schallimpulse in Festbeton für eine Anzahl von Anwendungs-fällen fest

Essais pour béton dans les structures - Partie 4: Determination de la vitesse de propagation du son

Le présent document spécifie une méthode de détermination de la vitesse de propagation des ondes ultrasoniques longitudinales dans le béton durci utilisé pour un certain nombre d'applications.

Preskušanje betona – 4. del: Določevanje hitrosti prehoda ultrazvoka

General Information

• Status: Withdrawn
• Publication Date: 24-Aug-2004
• Withdrawal Date: 06-Jul-2021
• 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
• Completion Date: 07-Jul-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
• Ref Project: SIST EN 12504-4:2004 - Testing concrete - Part 4: Determination of ultrasonic pulse velocity

Relations

• Replaced By: EN 12504-4:2021 - Testing concrete in structures - Part 4: Determination of ultrasonic pulse velocity
• Effective Date: 03-Oct-2018

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RNDPrüfung von Beton in Bauwerken - Teil 4: Bestimmung der UltraschallgeschwindigkeitEssais pour béton dans les structures - Partie 4: Determination de la vitesse de propagation du sonTesting concrete - Part 4: Determination of ultrasonic pulse velocity91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:Ta slovenski standard je istoveten z:EN 12504-4:2004SIST EN 12504-4:2004en01-december-2004SIST EN 12504-4:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12504-4August 2004ICS 91.100.30English versionTesting concrete - Part 4: Determination of ultrasonic pulsevelocityEssais pour béton dans les structures - Partie 4:Determination de la vitesse de propagation du sonPrüfung von Beton - Teil 4: Bestimmung derUltraschallgeschwindigkeitThis European Standard was approved by CEN on 26 February 2004.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© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12504-4:2004: ESIST EN 12504-4:2004

Determination of pulse velocity — indirect transmission.9 Annex B (informative)
Factors influencing pulse velocity measurements.10 B.1 General.10 B.2 Moisture content.10 B.3 Temperature of the concrete.10 B.4 Path length.10 B.5 Shape and size of specimen.10 B.6 Effect of reinforcing bars.11 B.7 Cracks and voids.11 Annex C (informative)
Correlation of pulse velocity and strength.12 C.1 General.12 C.2 Correlation using moulded specimens.12 C.3 Correlation by tests on cores.12 C.4 Correlation with the strength of precast units.13 Bibliography.14
It is recognised that the ultrasonic pulse velocity determined using this standard is a convention in as much that the path length over which the pulse travels may not strictly be known. The measurement of pulse velocity can be used for the determination of the uniformity of concrete, the presence of cracks or voids, changes in properties with time and in the determination of dynamic physical properties. These subjects were considered to be outside the scope of this standard, but some information is given in Annex B and more information can be found in the technical literature. The measurement may also be used to estimate the strength of in-situ concrete elements or specimens. However, it is not intended as an alternative to the direct measurement of the compressive strength of concrete.
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.
3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 206-1:2000 and the following apply. 3.1 transit time time taken for an ultrasonic pulse to travel from the transmitting transducer to the receiving transducer, passing through the interposed concrete 3.2 onset leading edge of the pulse detected by the measuring apparatus 3.3 rise time time for the leading edge of the first pulse to rise from 10 % to 90 % of its maximum amplitude 4 Principle A pulse of longitudinal vibrations is produced by an electro-acoustical transducer held in contact with one surface of the concrete under test. After traversing a known path length in the concrete, the pulse of vibrations is converted into an electrical signal by a second transducer and electronic timing circuits enable the transit time of the pulse to be measured. 5 Apparatus 5.1 General The apparatus consists of an electrical pulse generator, a pair of transducers, an amplifier and an electronic timing device for measuring the time interval elapsing between the onset of a pulse generated at the transmitting transducer and the onset of its arrival at the receiving transducer. A calibration bar is provided to provide a datum for the velocity measurement. Two forms of the electronic timing apparatus are available: a) an oscilloscope on which the first front of the pulse is displayed in relation to a suitable time scale. b) an interval timer with a direct reading digital display. SIST EN 12504-4:2004
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