ISO 29582-1:2009

DRAFT INTERNATIONAL STANDARD ISO/DIS 29582-1
Attributed to ISO/TC 74 by the Central Secretariat (see page iii)
Voting begins on Voting terminates on

2007-03-05 2007-08-05
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION


FAST-TRACK PROCEDURE
Methods of testing cement — Determination of the heat of
hydration —
Part 1:
Solution method
Méthodes d'essai des ciments — Détermination de la chaleur d'hydratation —
Partie 1: Méthode par dissolution
ICS 91.100.10


THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME
STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
©
International Organization for Standardization, 2007

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ISO/DIS 29582-1
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ii © ISO 2007 — All rights reserved

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ISO/DIS 29582-1
NOTE FROM THE ISO CENTRAL SECRETARIAT
This draft International Standard is submitted for voting to ISO member bodies under the fast-track procedure.
ISO 29582-1 was prepared by CEN (as EN 196-8) and is submitted for approval under a special “fast-track
procedure”, by Technical Committee ISO/TC 74, Cement and lime, in parallel with its approval by the ISO
member bodies (see the ISO/IEC Directives, Part 1, 2004, Annex F, F.2.1.1).
F.2  “Fast-track procedure”
F.2.1  Proposals to apply the fast-track procedure may be made as follows.
F.2.1.1  Any P-member or category A liaison organization of a concerned technical committee may propose that
an existing standard from any source be submitted for vote as an enquiry draft. The proposer shall obtain the
agreement of the originating organization before making a proposal. The criteria for proposing an existing
standard for the fast-track procedure are a matter for each proposer to decide.
F.2.1.2  An international standardizing body recognized by the ISO or IEC council board may propose that a
standard developed by that body be submitted for vote as a final draft International Standard.
F.2.1.3  An organization having entered into a formal technical agreement with ISO or IEC may propose, in
agreement with the appropriate technical committee or subcommittee, that a draft standard developed by that
organization be submitted for vote as an enquiry draft within that technical committee or subcommittee.
F.2.2  The proposal shall be received by the Chief Executive Officer, who shall take the following actions:
a) settle the copyright and/or trademark situation with the organization having originated the proposed
document, so that it can be freely copied and distributed to national bodies without restriction;
b) for cases F.2.1.1 and F.2.1.3, assess in consultation with the relevant secretariats which technical
committee/subcommittee is competent for the subject covered by the proposed document; where no
technical committee exists competent to deal with the subject of the document in question, the Chief
Executive Officer shall refer the proposal to the technical management board, which may request the Chief
Executive Officer to submit the document to the enquiry stage and to establish an ad hoc group to deal with
matters subsequently arising;
c) ascertain that there is no evident contradiction with other International Standards;
d) distribute the proposed document as an enquiry draft (F.2.1.1 and F.2.1.3) in accordance with 2.6.1, or as a
final draft International Standard (case F.2.1.2) in accordance with 2.7.1, indicating (in cases F.2.1.1 and
F.2.1.3) the technical committee/subcommittee to the domain of which the proposed document belongs.
F.2.3  The period for voting and the conditions for approval shall be as specified in 2.6 for an enquiry draft and
2.7 for a final draft International Standard. In the case where no technical committee is involved, the condition for
approval of a final draft International Standard is that not more than one-quarter of the total number of votes cast
are negative.
F.2.4  If, for an enquiry draft, the conditions of approval are met, the draft standard shall progress to the
approval stage (2.7). If not, the proposal has failed and any further action shall be decided upon by the technical
committee/subcommittee to which the document was attributed in accordance with F.2.2 b).
If, for a final draft International Standard, the conditions of approval are met, the document shall progress to the
publication stage (2.8). If not, the proposal has failed and any further action shall be decided upon by the
technical committee/subcommittee to which the FDIS was attributed in accordance with F.2.2 b), or by
discussion between the originating organization and the office of the CEO if no technical committee was
involved.
If the standard is published, its maintenance shall be handled by the technical committee/subcommittee to which
the document was attributed in accordance with F.2.2 b), or, if no technical committee was involved, the
approval procedure set out above shall be repeated if the originating organization decides that changes to the
standard are required.
© ISO 2007 — All rights reserved iii

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EN 196-8:2003 (E)
ISO/DIS 29582-1
Contents
page
Foreword .3
1 Scope.4
2 Normative references.4
3 Principle .4
4 Materials.4
4.1 Acid mixture.4
4.2 Zinc oxide (ZnO).5
4.3 Anhydrous cement.5
4.4 Hydrated cement .5
5 Apparatus.5
5.1 Calorimeter .5
6 Calorimeter calibration .7
6.1 Principle .7
6.2 Procedure.7
6.3 Calculation of calibration characteristics.8
6.3.1 Corrected temperature increase, DT . .8
c
6.3.2 Thermal leakage coefficient, K .8
6.3.3 Thermal capacity, C .8
7 Determination of heat of solution.9
7.1 Heat of solution of anhydrous cement.9
7.1.1 Procedure.9
7.1.2 Calculation .10
7.1.3 Expression of results.11
7.2 Heat of solution of hydrated cement.11
7.2.1 Procedure.11
7.2.2 Correction for bound water.11
7.2.3 Calculation .12
7.2.4 Expression of results.13
8 Heat of hydration.13
8.1 Calculation of results.13
8.2 Reporting of results .13
8.3 Precision .13
8.3.1 Repeatability.13
8.3.2 Reproducibility .13
Bibliography .14
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EN 196-8:2003 (E)
ISO/DIS 29582-1
Foreword
This document (EN 196-8:2003) has been prepared by Technical Committee CEN/TC 51, ‘Cement
and building limes’, the secretariat of which is held by IBN.
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 April 2004, and conflicting national standards shall
be withdrawn at the latest by April 2004.
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
EN 196-21: Methods of testing cement — Part 21: Determination of the chloride, carbon dioxide and
alkali content of cement
EN 196-21 is currently being 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.
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, Hungary, Iceland, Ireland, Italy, Luxembourg,
Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United
Kingdom.
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EN 196-8:2003 (E)
ISO/DIS 29582-1
1 Scope
This European Standard describes a method of determining the heat of hydration of cements by
means of solution calorimetry, also known as the solution method. The heat of hydration is expressed
in joules per gram of cement.
This standard is applicable to cements and hydraulic binders whatever their chemical composition.
NOTE 1 Another procedure, called the semi-adiabatic method, is described in EN 196-9. Either procedure can
be used independently.
NOTE 2 It has been demonstrated that the best correlation between the two methods is obtained at 7 days for
the solution method (EN 196-8) compared with 41 h for the semi-adiabatic method (EN 196-9).
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 197-1, Cement — Part 1: Composition, specifications and conformity criteria for common
cements.
3 Principle
The method consists in measuring the heats of solution, in an acid mixture, of anhydrous cement and
cement hydrated under standardized conditions for a predetermined period of time, e.g. 7 days.
These standardized hydration conditions are as follows:
 water/cement ratio 0,40;
 use of neat cement paste;
o
 storage at constant temperature of (20,0 ± 0,2) C during the whole hydration process.
The heat of hydration for each period, H , is obtained from the difference between the heat of solution
i
of anhydrous cement, Q , and that of hydrated cement, Q .
a i
4 Materials
4.1 Acid mixture
Analytical reagent quality acid mixture, obtained by adding 2,760 g of 40 % hydrofluoric acid (HF) for
every 100,0 g of (2,00 ± 0,01) mol/l nitric acid (HNO ), or 2,600 ml of hydrofluoric acid for every
3
100,0 ml of nitric acid.
WARNING Hydrofluoric acid can cause painful skin burns which heal only with difficulty and
precautions in handling this very corrosive substance should be strictly observed.
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EN 196-8:2003 (E)
ISO/DIS 29582-1
The quantity (mass or volume) of acid to be used, which is common to all tests, shall be measured to
± 0,2 %.
4.2 Zinc oxide (ZnO)
Use zinc oxide of analytical quality to determine the thermal capacity of the calorimeter. Weigh 40 g to
o
50 g. Ignite at (950 ± 25) C for one hour. Cool in a desiccator. Grind to pass a 125 mm sieve. Store in
a desiccator.
4.3 Anhydrous cement
Store anhydrous cement, from which metallic iron has been removed with a magnet, in a sealed
container to avoid absorption of water or carbon dioxide. Bring the test sample to ambient
temperature and carefully homogenize it before use.
4.4 Hydrated cement
Prepare the hydrated cement test sample by vigorously mixing, either manually or mechanically,
(100,0 ± 0,1) g of anhydrous cement with (40,0 ± 0,1) g of distilled or deionised water for 3 min at
ambient temperature. Place the resulting paste in plastics or glass cylindrical vials (three for each
hydration period to be tested) so that each vial contains 15 g to 20 g of material. Seal the vials by
means of a stopper and, if necessary, with paraffin wax or similar material and store them horizontally
o
in a thermostatic bath maintained at a temperature of (20,0 ± 0,2) C.
5
Apparatus
5.1 Calorimeter
NOTE The method does not deal with the standardization of the calorimetric apparatus, or
...