SIST EN 196-5:2011

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



SIST EN 196-5:2011



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
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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



EN 196-5:2011 (E) 2 Contents Page Foreword . 31Scope. 52Normative references . 53Principle . 54General requirements for testing . 54.1Number of tests . 54.2Repeatability and reproducibility . 54.3Expression of masses, volumes and factors . 64.4Determination of constant mass . 65Preparation of a test sample of cement . 66Reagents . 67Apparatus . 78Standardization of solutions . 88.1Standardization of the EDTA solution . 88.2Standardization of the 0,1 mol/l solution of hydrochloric acid . 99Procedure . 99.1Storage and filtration . 99.2Determination of the hydroxyl ion concentration . 99.3Determination of the calcium oxide concentration . 1010Results . 1010.1Calculation and expression of results . 1010.2Assessment of pozzolanicity . 1010.3Repeatability and reproducibility . 1111Reporting of results . 11Bibliography . 12 SIST EN 196-5:2011



EN 196-5:2011 (E) 3 Foreword This document (EN 196-5:2011) has been prepared by Technical Committee CEN/TC 51 “Cement and building limes”, the secretariat of which is held by NBN. 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 September 2011, and conflicting national standards shall be withdrawn at the latest by September 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 196-5:2005. This European Standard on the methods of testing cement comprises the following Parts: − 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; − CEN/TR 196-4, Methods of testing cement — Part 4: Quantitative determination of constituents; − EN 196-5, Methods of testing cement — Part 5: Pozzolanicity test for pozzolanic cement; − EN 196-6, Methods of testing cement — Part 6: Determination of fineness; − EN 196-7, Methods of testing cement — Part 7: Methods of taking and preparing samples of cement; − EN 196-8, Methods of testing cement — Part 8: Heat of hydration — Solution method; − EN 196-9, Methods of testing cement — Part 9: Heat of hydration — Semi-adiabatic method; − EN 196-10, Methods of testing cement — Part 10: Determination of the water-soluble chromium (VI) content of cement. NOTE A previous part, EN 196-21: Methods of testing cement — Part 21: Determination of the chloride, carbon dioxide and alkali content of cement, has been revised and incorporated into EN 196-2. This edition introduces the following technical changes based on comments received by the secretariat: a) the procedure, reagents and layout of the standard have been aligned with the relevant clauses of EN 196-2; b) the procedure for preparation of a test sample has been clarified; SIST EN 196-5:2011



EN 196-5:2011 (E) 4 c) Patton and Reeders reagent has been included as an additional, optional indicator for visual determination of EDTA titrations; d) the specification for apparatus has been extended to include a balance of specified accuracy; apparatus for measuring the absorbance of a solution whilst being stirred and a pH meter of specified accuracy. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom.
SIST EN 196-5:2011



EN 196-5:2011 (E) 5 1 Scope 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. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-7, Methods of testing cement — Part 7: Methods of taking and preparing samples of cement EN ISO 385:2005, Laboratory glassware — Burettes (ISO 385:2005) EN ISO 835:2007, Laboratory glassware — Graduated pipettes (ISO 835:2007) 3 Principle The pozzolanicity is assessed by comparing the concentration of calcium ion, expressed as calcium oxide, present in the aqueous solution in contact with the hydrated cement, after a fixed period of time, with the quantity of calcium ion capable of saturating a solution of the same alkalinity. The cement is considered to satisfy the test, i.e. gives a positive result, if the concentration of calcium ion in the solution is lower than the saturation concentration. NOTE Experiment has shown that a mixture of 20 g of cement and 100 ml of water at 40 °C achieves equilibrium after a period of between 8 d and 15 d. If the cement satisfies the test at 8 d (see 10.2) it is not necessary to continue to 15 d. 4 General requirements for testing 4.1 Number of tests Where the determination is one of a series subject to statistical control, determination by a single test shall be the minimum required. Where the determination is not part of a series subject to statistical control, the number of tests shall be two (see also 10.1). In the case of dispute, the number of tests shall be two. 4.2 Repeatability and reproducibility Repeatability and reproducibility in this document are expressed as repeatability standard deviation(s) and reproducibility standard deviation(s). SIST EN 196-5:2011



EN 196-5:2011 (E) 6 4.3 Expression of masses, volumes and factors Express masses in grams to the nearest 0,000 1 g and volumes from the burette in millilitres to the nearest 0,05 ml. Express the factors of solutions, given by the mean of three determinations, to three decimal places. 4.4 Determination of constant mass Determine constant mass by drying for successive periods at the stated temperature, or making successive 15 min ignitions, followed each time by cooling and then weighing. Constant mass is reached when the difference between two successive weighings is less than 0,000 5 g. 5 Preparation of a test sample of cement Before starting the determinations, treat the laboratory sample, taken in accordance with EN 196-7, as follows to obtain a homogenous test sample. Take approximately 100 g of the sample using a sample divider or by quartering. Sieve this portion on a 150 µm or 125 µm sieve until the residue remains constant. Grind the retained material so that it completely passes the 150 µm or 125 µm sieve. Transfer the sample to a clean dry container with an airtight closure and shake vigorously to mix it thoroughly. Carry out all operations as quickly as possible to ensure that the sample is exposed to ambient air only for the minimum time. 6 Reagents Use only reagents of an
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