Products and systems for the protection and repair of concrete structures - Test methods - Determination of stiffening time

This European Standard specifies a method for determining the stiffening time of repair products and systems specified in prEN 1504-3  comprising hydraulic based mortar and concrete (CC), including those modified by the addition of polymers (PCC).

Produkte und Systeme für den Schutz und die Instandsetzung von Betontragwerken - Prüfverfahren - Bestimmung der Verarbeitbarkeitszeit

Anwendungsbereich
Diese Europäische Norm legt ein Verfahren zur Bestimmung der Verarbeitbarkeitszeit von Instandsetzungsprodukten und -systemen nach prEN 1504-3 ) fest, die hydraulischen Mörtel und Beton (CC) enthalten, einschließlich der Produkte und Systeme mit Polymerzusatzstoffen (PCC).

Produits et systèmes de protection et de réparation des structures en béton - Méthodes d'essai - Temps de raidissement

La présente Norme européenne spécifie une méthode pour déterminer le temps de raidissement des produits et systèmes de réparation spécifiés dans le prEN 1504-3 ), à base de mortiers hydrauliques et de bétons hydrauliques (JHC), ainsi que ceux modifiés par l'ajout de polymères (PCC).

Proizvodi in sistemi za zaščito in popravilo betonskih konstrukcij - Preskusne metode - Določevanje časa strjevanja

General Information

Status
Published
Publication Date
21-May-2002
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
18-Jun-2021
Completion Date
14-Apr-2025

Overview - EN 13294:2002 (Determination of stiffening time)

EN 13294:2002 is a CEN test-method standard for measuring the stiffening time of repair products and systems for concrete structures. It applies to hydraulic-based mortars and concretes (CC) and polymer-modified variants (PCC) referred to in prEN 1504-3. The method is based on EN 480-2 and determines how the resistance to penetration of a freshly mixed repair material increases with time, producing defined initial and final stiffening times.

Key topics and technical requirements

  • Scope: Hydraulic-based mortar and concrete repair products, including polymer-modified repair mortars (PCC). For mixes with particles >5 mm, the mortar fraction is separated by sieving before testing.
  • Principle: A brass penetration rod is lowered into the fresh mix on a platform scale; penetration resistance is derived from the mass reading and recorded over time.
  • Defined stiffening criteria:
    • Initial stiffening: resistance to penetration = 0.5 N/mm²
    • Final stiffening: resistance to penetration = 3.5 N/mm²
  • Apparatus: 5 mm test sieve (EN 933-1), platform scale (readability ≤100 g), specified brass rod and washer, containers (75 mm dia. min), lever-type stand, standard mixers (EN 196-1 or forced-action pan mixer).
  • Test conditions: Standard laboratory climate (21 ± 2) °C, 60 ± 10 % RH; condition materials/equipment 24 h beforehand.
  • Procedure essentials: Mix per manufacturer or EN 1766; fill containers in increments; cover specimens; measure penetration hourly until 1 N/mm² then every 30 minutes until 4 N/mm².
  • Calculation: Convert scale reading (kg) to penetration resistance (N/mm²) by dividing the mass reading by 3 (based on rod geometry and 1 kg ≈ 10 N).
  • Reporting requirements: Complete test identification, batch/product info, preparation details, storage, equipment, times to initial/final resistances, observations of bleeding/segregation and precision data.

Applications and users

  • Quality control and factory testing of concrete repair mortars and grouts.
  • Product development and R&D for manufacturers of repair systems (CC and PCC).
  • Independent testing laboratories validating compliance with repair-product specifications (prEN 1504-3).
  • Specifiers, contractors and asset owners assessing workable life, handling time and application windows for repair operations.

Related standards

  • EN 480-2 (setting time / basis of method)
  • prEN 1504-3 (repair product specifications)
  • EN 196-1, EN 933-1, EN 1015-7, EN 1766 - referenced apparatus, mixing and sample preparation standards
  • EN 1015-9, prEN 13395-1 - related test methods for workable life and flow

Keywords: EN 13294:2002, stiffening time, test methods, concrete repair, penetration resistance, polymer-modified mortar, CC PCC, CEN.

Frequently Asked Questions

EN 13294:2002 is a standard published by the European Committee for Standardization (CEN). Its full title is "Products and systems for the protection and repair of concrete structures - Test methods - Determination of stiffening time". This standard covers: This European Standard specifies a method for determining the stiffening time of repair products and systems specified in prEN 1504-3 comprising hydraulic based mortar and concrete (CC), including those modified by the addition of polymers (PCC).

This European Standard specifies a method for determining the stiffening time of repair products and systems specified in prEN 1504-3 comprising hydraulic based mortar and concrete (CC), including those modified by the addition of polymers (PCC).

EN 13294:2002 is classified under the following ICS (International Classification for Standards) categories: 91.080.40 - Concrete structures. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 13294:2002 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.

You can purchase EN 13294:2002 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-november-2002
3URL]YRGLLQVLVWHPL]D]DãþLWRLQSRSUDYLOREHWRQVNLKNRQVWUXNFLM3UHVNXVQH
PHWRGH'RORþHYDQMHþDVDVWUMHYDQMD
Products and systems for the protection and repair of concrete structures - Test methods
- Determination of stiffening time
Produkte und Systeme für den Schutz und die Instandsetzung von Betontragwerken -
Prüfverfahren - Bestimmung der Verarbeitbarkeitszeit
Produits et systemes de protection et de réparation des structures en béton - Méthodes
d'essai - Temps de raidissement
Ta slovenski standard je istoveten z: EN 13294:2002
ICS:
91.080.40 Betonske konstrukcije Concrete structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 13294
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2002
ICS 91.080.40
English version
Products and systems for the protection and repair of concrete
structures - Test methods - Determination of stiffening time
Produits et systèmes de protection et de réparation des Produkte und Systeme für den Schutz und die
structures en béton - Méthodes d'essai - Temps de Instandsetzung von Betontragwerken - Prüfverfahren -
raidissement Bestimmung der Verarbeitbarkeitszeit
This European Standard was approved by CEN on 4 January 2002.
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, Malta, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13294:2002 E
worldwide for CEN national Members.

Contents
page
Foreword.3
1 Scope .4
2 Normative references .4
3 Principle.4
4 Apparatus .4
5 Procedure .5
5.1 General.5
5.2 Preparation of mortar or concrete.5
5.3 Separation of mortar and filling of containers.6
5.4 Storage conditions .6
5.5 Times of determination of resistance to penetration.6
5.6 Resistance to penetration.6
6 Expression of the test results.6
7 Test report .6
Foreword
This document EN 13294:2002 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 November 2002, and conflicting national standards shall be withdrawn at the latest
by December 2002.
It has been prepared by sub-committee 8 "Products and systems for the protection and repair of concrete
structures", the secretariat of which is held by AFNOR.
This European Standard is one of a series dealing with products and systems for the protection and repair of
concrete structures. It describes a method of test determining the stiffening time of grout, mortar or concrete repair
products and systems, making allowance for the presence of coarse aggregate.
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, Malta, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies a method for determining the stiffening time of repair products and systems

specified in prEN 1504-3 comprising hydraulic based mortar and concrete (CC), including those modified by the
addition of polymers (PCC).
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 196-1, Methods of testing cement - Part 1: Determination of strength.
EN 480-2, Admixtures for concrete, mortar and grout - Test methods - Part 2: Determination of setting time.
EN 933-1, Tests for geometric properties of aggregates - Part 1: Determination of particle size distribution – Sieving
method.
EN 1015-7, Methods of test for mortar for masonry - Part 7: Determination of air content of fresh mortar.
EN 1766, Products and systems for the protection and repair of concrete structures - Test methods - Reference
concretes for testing.
3 Principle
The method shall be based on EN 480-2. A sample of freshly-mixed repair product is placed into a container set on
a weigh balance. Periodically, a penetration rod is pressed into the mortar to a defined depth and the penetration
resistance calculated from the mass reading on the scale. As the mortar stiffens due to hydration of the
cementitious components, the resistance to penetration will increase and by recording the penetration resistance
with time, the stiffening time can be determined.
The stiffening time is the period from completion of mixing of the grout, mortar or concrete until a resistance to
2 2
penetration of 0,5 N/mm
...

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