EN 196-5:2011

Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement

This European Standard specifies the method of measuring the pozzolanicity of pozzolanic cements conforming to [1] EN 197-1. This standard does not apply to Portland pozzolana cements or to pozzolanas.
This method constitutes the reference procedure.

Prüfverfahren für Zement - Teil 5: Prüfung der Puzzolanität von Puzzolanzementen

Diese Europäische Norm legt das Verfahren zur Prüfung der Puzzolanität von Puzzolanzementen, die EN 197-1 [1] entsprechen, fest. Diese Norm gilt nicht für Portlandpuzzolanzemente und nicht für Puzzolane. Dieses Verfahren ist das Referenzverfahren.

Méthodes d'essais des ciments - Partie 5: Essai de pouzzolanicité des ciments pouzzolaniques

Le présent document décrit la méthode de mesurage de la pouzzolanicité des ciments pouzzolaniques
conformes à [1] EN 197-1. Le présent document ne s’applique pas aux ciments Portland à la pouzzolane ni
aux pouzzolanes.
Cette méthode constitue la méthode de référence.

Metode preskušanja cementa - 5. del: Določanje pucolanske aktivnosti za pucolanske cemente

Ta evropski standard določa metodo merjenja pucolanske aktivnosti pucolanskih cementov v skladu z EN 197-1. Ta evropski standard ne velja za portlandske pucolanske cemente ali pucolane.
Ta metoda določa referenčni postopek.

General Information

• Status: Published
• Publication Date: 22-Mar-2011
• Withdrawal Date: 29-Sep-2011
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: CEN/TC 51 - Cement and building limes
• Drafting Committee: CEN/TC 51/WG 15 - Revision of methods of testing cement
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 14-Jun-2022
• Completion Date: 11-Feb-2026
• Directive: Harmonized Standard305/2011 - 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:

  ---

  Not Harmonized89/106/EEC - Construction products
• Ref Project: SIST EN 196-5:2011 - Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement

Relations

• Replaces: EN 196-5:2005 - Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement
• Effective Date: 24-Apr-2010
• Refers: EN 196-7:2007 - Methods of testing cement - Part 7: Methods of taking and preparing samples of cement
• Effective Date: 28-Jan-2026
• Refers: CEN/TR 16823:2015 - Railway applications - Driver's cab - Background information on anthropometric data
• Effective Date: 28-Jan-2026
• Referred By: EN 12715:2000 - Execution of special geotechnical work - Grouting
• Effective Date: 28-Jan-2026
• Referred By: EN 14679:2005 - Execution of special geotechnical works - Deep mixing
• Effective Date: 28-Jan-2026
• Referred By: EN 14216:2004 - Cement - Composition, specifications and conformity criteria for very low heat special cements
• Effective Date: 28-Jan-2026
• Referred By: EN 14216:2015 - Cement - Composition, specifications and conformity criteria for very low heat special cements
• Effective Date: 28-Jan-2026
• Referred By: EN 197-1:2011 - Cement - Part 1: Composition, specifications and conformity criteria for common cements
• Effective Date: 28-Jan-2026

Overview

EN 196-5:2011, developed by the European Committee for Standardization (CEN), specifies the reference method for determining the pozzolanicity of pozzolanic cements. This standard is applicable to pozzolanic cements that comply with EN 197-1. It is important to note that EN 196-5:2011 does not apply to Portland pozzolana cements or to natural pozzolanas themselves. The method defines the procedure, reagents, apparatus, and criteria for assessment, establishing a harmonized approach for quality assurance and regulatory compliance across the cement industry.

Key Topics

• Scope of Application

  • Applies exclusively to pozzolanic cements defined by EN 197-1
  • Excludes Portland pozzolana cements and raw pozzolanic materials

• Principle of the Test

  • The standard measures pozzolanic activity by comparing the concentration of calcium ions (as calcium oxide) in solution after set periods with the saturation concentration at a given alkalinity.

• Test Samples and Preparation

  • Emphasizes robust sample preparation and sieving for homogenization
  • Specifies storage, handling, and minimum exposure to air for reliable results

• Reagent and Apparatus Requirements

  • Mandates the use of high-purity reagents and calibrated laboratory equipment (e.g., precise balances, pH meters, burettes, and titration indicators)

• Repeatability and Reproducibility

  • Establishes criteria for test repeatability and reproducibility to ensure consistent results
  • Provides acceptance thresholds for differences between duplicate tests

• Assessment and Reporting

  • Evaluation is based on graphical and mathematical comparison to reference curves of calcium oxide versus hydroxyl ion concentration
  • Results are reported as compliant or non-compliant with pozzolanicity criteria

Applications

EN 196-5:2011 is fundamental for:

• Cement Manufacturers:

  • Enables consistent quality control of pozzolanic cements
  • Ensures product compliance with European and international standards

• Construction and Civil Engineering:

  • Supports the selection and validation of cements for durable, sustainable concrete in structures where pozzolanic activity enhances performance-such as resistance to sulfate attack or alkali-silica reaction

• Accredited Laboratories:

  • Serves as the official reference method for third-party testing and certification of pozzolanic cement types in line with regulatory and project requirements

• Regulatory Bodies:

  • Provides a harmonized methodology to verify compliance in the European marketplace and supports cross-border recognition under the Construction Products Regulation (CPR)

Related Standards

• EN 197-1: Cement - Part 1: Composition, specifications and conformity criteria for common cements (defines categories of pozzolanic cement covered by EN 196-5)
• EN 196-1: Methods of testing cement - Part 1: Determination of strength
• EN 196-2: Methods of testing cement - Part 2: Chemical analysis of cement
• EN 196-3: Methods of testing cement - Part 3: Determination of setting times and soundness
• EN 196-7: Methods of testing cement - Part 7: Methods of taking and preparing samples of cement

These related standards collectively form a comprehensive framework for testing, certifying, and regulating cement and cementitious materials in Europe.

Keywords: EN 196-5, pozzolanicity test, pozzolanic cement, cement testing methods, CEN standards, cement quality control, EN 197-1, laboratory testing, construction materials standardization

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prüfverfahren für Zement - Teil 5: Prüfung der Puzzolanität von PuzzolanzementenMéthodes d'essais des ciments - Partie 5: Essai de pouzzolanicité des ciments pouzzolaniquesMethods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement91.100.10Cement. Mavec. Apno. MaltaCement. Gypsum. Lime. MortarICS:Ta slovenski standard je istoveten z:EN 196-5:2011SIST EN 196-5:2011en,fr,de01-junij-2011SIST EN 196-5:2011SLOVENSKI
STANDARDSIST EN 196-5:20051DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 196-5
March 2011 ICS 91.100.10 Supersedes EN 196-5:2005English Version
Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement
Méthodes d'essais des ciments - Partie 5: Essai de pouzzolanicité des ciments pouzzolaniques
Prüfverfahren für Zement - Teil 5: Prüfung der Puzzolanität von Puzzolanzementen This European Standard was approved by CEN on 20 February 2011.
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 CEN-CENELEC 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 CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 196-5:2011: ESIST EN 196-5:2011
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