EN 14488-2:2006
(Main)Testing sprayed concrete - Part 2: Compressive strength of young sprayed concrete
Testing sprayed concrete - Part 2: Compressive strength of young sprayed concrete
This part specifies two methods from which an estimate of the in situ compressive strength of young hardened sprayed concrete can be made
Prüfung von Spritzbeton - Teil 2: Druckfestigkeit von jungem Spritzbeton
Diese Norm legt zwei Verfahren fest, nach denen die Druckfestigkeit von jungem Spritzbeton abgeschätzt werden kann.
Essais pour béton projeté - Partie 2 : Résistance à la compression au jeune âge du béton projeté
La présente norme spécifie deux méthodes à partir desquelles il est possible d’effectuer une estimation de la résistance à la compression sur chantier au jeune âge du béton durci projeté.
Preskušanje brizganega betona – 2. del: Tlačna trdnost svežega brizganega betona
General Information
- Status
- Published
- Publication Date
- 06-Jun-2006
- Technical Committee
- CEN/TC 104 - Concrete ( performance, production, placing and compliance criteria )
- Drafting Committee
- CEN/TC 104/WG 10 - Sprayed concrete
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 30-Jun-2023
- Completion Date
- 14-Apr-2025
- Directive
- 89/106/EEC - Construction products
Overview
EN 14488-2:2006 is a CEN (European) standard titled "Testing sprayed concrete - Part 2: Compressive strength of young sprayed concrete." It defines two in situ test methods to estimate the compressive strength of newly applied sprayed concrete (shotcrete). The standard is intended for quick, on-site assessment of early-age strength development and requires calibrated test equipment and documented procedures.
Key topics and requirements
- Scope: Two methods are specified to estimate in situ compressive strength of young sprayed concrete.
- Measurement ranges:
- Method A (Penetration needle / penetrometer): intended for approx. 0.2 MPa to 1.2 MPa.
- Method B (Stud driving / pull-out): intended for approx. 3 MPa to 16 MPa.
- Method A – Penetration needle:
- Use a penetrometer that records force to ±10 N.
- Needle: diameter 3.0 mm ±0.1 mm; tip taper 60° ±5°.
- Penetrate to 15 mm ±2 mm in a single continuous push.
- Perform 10 measurements rapidly (within 1 minute for strengths < 0.5 MPa) and record mean force.
- Convert mean force to estimated compressive strength using the equipment producer’s calibration/conversion curve (no extrapolation).
- Method B – Stud driving and pull-out:
- Drive studs per manufacturer instructions (stud penetration ≥ 20 mm recommended).
- Measure projecting length, then extract and record pull-out force. Pull-out equipment accuracy: max force indicated to ±5%.
- Ten studs per test area, spacing > 80 mm, sprayed layer thickness ≥ 100 mm.
- Correct pull-out readings with the supplied calibration curve and compute mean P/l (pull-out force/penetration depth) to estimate compressive strength. No extrapolation.
- Calibration and reporting: Equipment must be supplied with certified calibration curves (examples in Annex A and B). Test reports must record location, times (spray completion, test start/finish), equipment type/serial, raw measurements and means.
- Precision: No inter-laboratory precision data are provided in this standard.
Practical applications and users
- Typical users: shotcrete/shotcrete contractors, tunnel and underground engineers, structural repair teams, site quality-control (QC) engineers, and manufacturers of penetrometers and stud-driving equipment.
- Use cases: rapid on-site strength checks during tunneling, slope stabilization, lining repairs, sprayed concrete curing monitoring, and acceptance testing where early-age strength verification is required.
Related standards
- EN 14488 series – Testing sprayed concrete:
- Part 1: Sampling fresh and hardened concrete
- Part 3–7: flexural strength, bond strength, energy absorption, thickness, fibre content
Keywords: EN 14488-2, sprayed concrete, young sprayed concrete, compressive strength, penetrometer, stud driving, in situ test, calibration curve, shotcrete testing.
Frequently Asked Questions
EN 14488-2:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Testing sprayed concrete - Part 2: Compressive strength of young sprayed concrete". This standard covers: This part specifies two methods from which an estimate of the in situ compressive strength of young hardened sprayed concrete can be made
This part specifies two methods from which an estimate of the in situ compressive strength of young hardened sprayed concrete can be made
EN 14488-2:2006 is classified under the following ICS (International Classification for Standards) categories: 91.100.30 - Concrete and concrete products. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 14488-2:2006 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Testing sprayed concrete - Part 2: Compressive strength of young sprayed concreteL]JDQHJDEHWRQDEssais pour béton projeté - Partie 2 : Résistance a la compression au jeune âge du béton projetéPrüfung von Spritzbeton - Teil 2: Druckfestigkeit von jungem SpritzbetonTa slovenski standard je istoveten z:EN 14488-2:2006SIST EN 14488-2:2006en91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:SLOVENSKI
STANDARDSIST EN 14488-2:200601-oktober-2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14488-2June 2006ICS 91.100.30 English VersionTesting sprayed concrete - Part 2: Compressive strength ofyoung sprayed concreteEssais pour béton projeté - Partie 2 : Résistance à lacompression au jeune âge du béton projetéPrüfung von Spritzbeton - Teil 2: Druckfestigkeit vonjungem SpritzbetonThis European Standard was approved by CEN on 3 May 2006.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, Romania,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© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14488-2:2006: E
Example of calibration curves for needle penetrometer.9 Annex B (informative)
Example of calibration curves for stud driver.10
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