EN 196-5:2005
(Main)Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement
Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement
This document specifies the method of measuring the pozzolanicity of pozzolanic cements conforming to EN 197-1. This document 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
Dieses Dokument legt das Verfahren zur Prüfung der Puzzolanität von Puzzolanzementen, die der Euro-
päischen Norm EN 197-1 entsprechen, fest. Dieses Dokument 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 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
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2005
1DGRPHãþD
SIST EN 196-5:1995
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Methods of testing cement - Part 5: Pozzolanicity test for pozzolanic cement
Prüfverfahren für Zement - Teil 5: Prüfung der Puzzolanität von Puzzolanzementen
Méthodes d'essais des ciments - Partie 5: Essai de pouzzolanicité des ciments
pouzzolaniques
Ta slovenski standard je istoveten z: EN 196-5:2005
ICS:
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 196-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2005
ICS 91.100.10 Supersedes EN 196-5:1994
English version
Methods of testing cement - Part 5: Pozzolanicity test for
pozzolanic cement
Méthodes d'essais des ciments - Partie 5: Essai de Prüfverfahren für Zement - Teil 5: Prüfung der Puzzolanität
pouzzolanicité des ciments pouzzolaniques von Puzzolanzementen
This European Standard was approved by CEN on 29 December 2004.
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 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 translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 196-5:2005: E
worldwide for CEN national Members.
Contents Page
Foreword. 3
1 Scope. 4
2 Normative references . 4
3 Principle . 4
4 General requirements for testing . 4
4.1 Number of tests. 4
4.2 Repeatability and reproducibility . 4
4.3 Expression of masses, volumes and factors. 5
4.4 Determination of constant mass . 5
5 Preparation of a test sample of cement. 5
6 Reagents . 5
6.1 General. 5
7 Apparatus . 6
8 Standardization of solutions. 7
8.1 Standardization of the EDTA solution . 7
8.2 Standardization of the 0,1 mol/l solution of hydrochloric acid . 8
9 Procedure . 8
9.1 Storage and filtration. 8
9.2 Determination of the hydroxyl ion concentration. 8
9.3 Determination of the calcium oxide concentration . 9
10 Results . 9
10.1 Calculation and expression of results. 9
10.2 Assessment of pozzolanicity. 9
10.3 Repeatability and reproducibility . 10
11 Reporting of results. 11
Bibliography . 12
Foreword
This document (EN 196-5:2005) has been prepared by Technical Committee CEN/TC 51 ‘Cement
and building limes’, the secretariat of which is held by IBN/BIN.
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 August 2005, and conflicting national standards shall
be withdrawn at the latest by August 2005.
This document supersedes EN 196-5:1994.
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 time and soundness
EN 196-5, Methods of testing cement — Part 5: Pozzolanicity test for pozzolanic cements
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
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.
Another document, ENV 196-4 Methods of testing cement — Part 4: Quantitative determination of constituents,
has been drafted and will be published as a CEN Technical Report.
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;
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, 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.
1 Scope
This document specifies the method of measuring the pozzolanicity of pozzolanic cements conforming
to EN 197-1. This document 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 — Methods of taking and preparing samples of cement
ISO 385-1, Laboratory glassware — Burettes — Part 1: General requirements
ISO 835-1, Laboratory glassware — Graduated pipettes — Part 1: General requirements
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 - Precision under repeatability conditions where independent test results are obtained
with the same method on identical test items (material) in the same laboratory by the same operator
using the same equipment within short intervals of time.
Reproducibility - Precision under reproducibility conditions where test results are obtained with the
same method on identical test items (material) in different laboratories with different operators using
different equipment.
Repeatability and reproducibility in this document are expressed as repeatability standard deviation(s)
and reproducibility standard deviation(s).
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
6.1 General
Use only reagents of analytical quality. References to water mean distilled or de-ionised water having
an electrical conductivity ≤ 0,5 mS/m. The quantities of reagents listed are to indicate concentrations;
actual quantities to be prepared shall be adjusted according to the amounts required.
Unless otherwise stated (%) means percent by mass.
3 3
6.2 Concentrated hydrochloric acid (HCl), (ρ = 1,18 g/cm to 1,19 g/cm ).
6.3 Dilute hydrochloric acid, about 0,1 mol/l, prepared by adding 8,5 ml of concentrated
hydrochloric acid (6.2), measured using the 50 ml burette (7.8), to a 1 litre volumetric flask (7.10)
containing about 500 ml of water and making up to 1 000 ml with water.
6.4 Dilute hydrochloric acid, (1 + 2), prepared by adding 250 ml of concentrated hydrochloric acid
(6.2) to 500 ml water.
6.5 Methyl orange, (dimethylaminoazobenzene p-sodium sulfonate).
6.6 Methyl orange indicator, prepared by dissolving (0,020 ± 0,002) g of methyl orange (6.5) in
water and making up to 1 000 ml.
6.7 Sodium hydroxide, (NaOH).
6.8 Sodium hydroxide solution, prepared by dissolving (100 ± 1) g of sodium hydroxide (6.7) in
water and making up to 1 000 ml.
6.9 Calcium carbonate, (CaCO ), dried to constant mass at (200 ± 10) °C (purity greater than
99,9 %).
6.10 Sodium chloride, (NaCl), dried to constant mass at (110 ± 5) °C.
6.11 Murexide, (ammonium purpurate).
6.12 Murexide indicator, prepared by grinding (1,0 ± 0,1) g of murexide
...
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