SS en 196 5 2005 en PDF
SS en 196 5 2005 en PDF
SS en 196 5 2005 en PDF
SVENSK STANDARD
SS-EN 196-5:2005
Fastställd 2005-02-25
Utgåva 2
Cement – Provning –
Del 5: Puzzolanitetstest av puzzolancement
ICS 91.100.10
Språk: engelska
Publicerad: april 2005
© Copyright SIS. Reproduction in any form without permission is prohibited.
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Europastandarden EN 196-5:2005 gäller som svensk standard. Detta dokument innehåller den officiella
engelska versionen av EN 196-5:2005.
The European Standard EN 196-5:2005 has the status of a Swedish Standard. This document contains the
official English version of EN 196-5:2005.
Standarder kan beställas hos SIS Förlag AB som även lämnar allmänna upplysningar om svensk och
utländsk standard.
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English version
Méthodes d'essais des ciments - Partie 5: Essai de Prüfverfahren für Zement - Teil 5: Prüfung der Puzzolanität
pouzzolanicité des ciments pouzzolaniques von Puzzolanzementen
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.
© 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.
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EN 196-5:2005 (E)
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
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EN 196-5:2005 (E)
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 European Standard on the methods of testing cement comprises the following Parts:
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 196-7, Methods of testing cement — Part 7: Methods of taking and preparing samples 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.
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;
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.
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EN 196-5:2005 (E)
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.
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
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.
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).
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.
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EN 196-5:2005 (E)
Repeatability and reproducibility in this document are expressed as repeatability standard deviation(s)
and reproducibility standard deviation(s).
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.
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.
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.
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.
6.6 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.
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EN 196-5:2005 (E)
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, (CaCO3), dried to constant mass at (200 ± 10) °C (purity greater than
99,9 %).
6.12 Murexide indicator, prepared by grinding (1,0 ± 0,1) g of murexide with (100 ± 1) g of dry
sodium chloride (NaCl).
6.14 EDTA solution, about 0,03 mol/l, prepared by dissolving (11,17 ± 0,01) g of EDTA in water
and making up to 1 000 ml. Store in an air-tight polyethylene container.
6.15 Sodium carbonate, (Na2CO3), dried to constant mass at (250 ±10) °C.
6.16 Mixed calcein and methylthymol blue indicator, prepared by grinding (0,20 ± 0,02) g calcein
(bis [bis (carboxymethyl)-amino-methyl)] –2’, 7’-fluorescein (Fluoresceindi-(methylimino diacetic acid)
sodium salt) and (0,10 ± 0,01) g methylthymol blue, sodium salt of 3’, 3’’-bis- [bis (carboxy-methyl)-
aminomethyl]-thymolsulfophthalein, (C37H41N2O13SNa3) with (100 ± 1) g of potassium nitrate (KNO3).
6.17 Calcon indicator, prepared by grinding (1,0 ± 0,1) g of calcon, sodium 2-hydroxy-4-(2-hydroxy-
1-napthylazo) napthalene-1-sulfonate, (EriochromeBlue-Black R) with (100 ± 1) g of anhydrous
sodium sulfate (Na2SO4).
6.18 Patton and Reeders reagent, prepared by mixing (1,0 ± 0,1) g of Calcon carboxylic acid,
(2-hydroxy-1-(2-hydroxy-4-sulfo-1-napthylazo)-3-napthoic acid, C21H14N2O7S), with (100 ± 1) g of
anhydrous sodium sulfate (Na2SO4).
7 Apparatus
7.1 500 ml cylindrical polyethylene container, of about 70 mm diameter with a pressure seal-
plug locked by a screw plug, capable of preventing evaporation during storage.
7.4 Filter paper, with low porosity (mean pore diameter of about 2 µm).