SIST EN 934-2:2002

SLOVENSKI STANDARD
01-september-2002
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SIST EN 934-2:1998
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Admixtures for concrete, mortar and grout - Part 2: Concrete admixtures - Definitions,
requirements, conformity, marking and labelling
Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 2: Betonzusatzmittel -
Definitionen, Anforderungen, Konformität, Kennzeichnung und Beschriftung
Adjuvants pour béton, mortier et coulis - Partie 2: Adjuvants pour béton - Définitions,
exigences, conformité, marquage et étiquetage
Ta slovenski standard je istoveten z: EN 934-2:2001
ICS:
01.040.91
91.100.30
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 934-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2001
ICS 01.040.91; 91.100.30 Supersedes EN 934-2:1997
English version
Admixtures for concrete, mortar and grout - Part 2: Concrete
admixtures - Definitions, requirements, conformity, marking and
labelling
Adjuvants pour béton, mortier et coulis - Partie 2: Adjuvants Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 2:
pour béton - Définitions, exigences, conformité, marquage Betonzusatzmittel - Definitionen, Anforderungen,
et étiquetage Konformität, Kennzeichnung und Beschriftung
This European Standard was approved by CEN on 2 May 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, 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
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 934-2:2001 E
worldwide for CEN national Members.

Contents
page
Foreword . 3
1 Scope . 3
2 Normative references . 3
3 Terms and definitions . 4
4 Requirements . 6
4.1 General requirements . 6
4.2 Requirements for specific types of admixtures . 6
4.3 Release of dangerous substances . 13
5 Sampling . 13
6 Conformity control . 13
7 Evaluation of conformity . 13
8 Marking and labelling . 15
8.1 General . 15
8.2 Designation of admixtures . 15
8.3 Additional information . 15
Annex A (informative) - Release of dangerous substances . 16
Annex ZA (informative) -Provisions for the CE-marking of admixtures for concrete under the EU Construction
Products Directive . 16
ZA.1 Clauses of this European standard addressing the provisions of the EU Construction Products Directive 16
ZA.2 Procedure for attestation of conformity of admixtures for concrete . 20
ZA.3 CE marking and labelling . 21
Table
Table 1 – General Requirements . 8
Table 2 – Specific requirements for water reducing/plasticizing admixtures (at equal consistence) . 9
Table 3.1 – Specific requirements for high range water reducing/super plasticizing admixtures
(at equal consistence) . 9
Table 3.2 – Specific requirements for high range water reducing/super plasticizing admixtures
(at equal w/c ratio) . 9
Table 4 – Specific requirements for water retaining admixtures (at equal consistence) . 10
Table 5 – Specific requirements for air entraining admixtures (at equal consistence) . 10
Table 6 – Specific requirements for set accelerating admixtures (at equal consistence) . 10
Table 7 – Specific requirements for hardening accelerating admixtures (at equal consistence) . 11
Table 8 – Specific requirements for set retarding admixtures (at equal consistence) . 11
Table 9 – Specific requirements for water resisting admixtures (at equal consistence or equal w/c ratio . 11
Table 10 – Specific requirements for set retarding/water reducing/plasticizing admixtures (at equal consistence) 12
Table 11.1 – Specific requirements for set retarding/high range water reducing/ super-plasticizing
admixtures (at equal consistence) . 12
Table 11.2 – Specific requirements for set retarding/high range water reducing/ super-plasticizing
admixtures (at equal w/c ratio) . 12
Table 12 – Specific requirements for set accelerating/water reducing/plasticizing admixtures
(at equal consistence) . 13
Table 13 – Minimum frequency of test for the factory production control of concrete admixtures according
to EN 934-2 . 14
Table ZA.1 – Scope and relevant clauses of this standard . 18
Table ZA.2 – System of attestation of conformity . 20
Table ZA.3 – Assignation of evaluation of conformity tasks . 20
Foreword
This European Standard has been prepared by Technical Committee CEN/TC 104 "Concrete", the secretariat of which
is held by DIN.
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 January 2002, and conflicting national standards shall be withdrawn at the latest by April
2003.
This European Standard supersedes EN 934-2:1997.
This European Standard has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s) see informative annex ZA which is an integral part of this standard.
This standard is a part of the series EN 934 "Admixtures for concrete, mortar and grout" which additionally comprises
the following parts
- Part 3 Admixtures for masonry mortar - Definitions, requirements, conformity, marking and labelling
- Part 4 Admixtures for grout for prestressing tendons - Definitions, requirements, conformity, marking and labelling
- Part 5 Admixtures for sprayed concrete - Definitions, requirements, conformity, marking and labelling
- Part 6 Sampling, conformity control and evaluation of conformity
This European Standard is used with the standards of the EN 480 series which comprises test methods for admixtures.
The annexes A and ZA are informative.
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, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
the United Kingdom.
1 Scope
This European Standard specifies definitions and requirements for admixtures for use in concrete.
It covers admixtures for plain, reinforced and prestressed concrete which are used in site mixed, ready mixed concrete
and precast concrete.
The performance requirements in this standard apply to admixtures used in concrete of normal consistence. They may
not be applicable to admixtures intended for other types of concrete such as semi-dry and earth moist mixes.
Provisions governing the practical application of admixtures in the production of concrete, i. e. requirements concerning
composition, mixing, placing, curing etc. of concrete containing admixtures are not part of this standard.
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 480-1, Admixtures for concrete, mortar and grout - Test methods - Part 1: Reference concrete and reference
mortar for testing.
EN 480-2, Admixtures for concrete, mortar and grout - Test methods - Part 2: Determination of setting time.
EN 480-4, Admixtures for concrete, mortar and grout - Test methods - Part 4: Determination of bleeding of concrete.
EN 480-5, Admixtures for concrete, mortar and grout - Test methods - Part 5: Determination of capillary absorption.
EN 480-6, Admixtures for concrete, mortar and grout - Test methods - Part 6: Infrared analysis.
EN 480-8, Admixtures for concrete, mortar and grout - Test methods - Part 8: Determination of the conventional dry
material content.
EN 480-10, Admixtures for concrete, mortar and grout - Test methods - Part 10: Determination of the water soluble
chloride content.
EN 480-11, Admixtures for concrete, mortar and grout - Test methods - Part 11: Determination of air void charac-
teristics in hardened concrete.
EN 480-12, Admixtures for concrete, mortar and grout - Test methods - Part 12: Determination of the alkali content of
admixtures.
EN 934-6:2001, Admixtures for concrete, mortar and grout - Part 6: Sampling, conformity control and evaluation of
conformity.
prEN 1015-13:1993, Methods of test for mortar for masonry - Part 13: Determination of the dimensional stability of
hardened mortars.
EN 12350-2, Testing fresh concrete - Part 2: Slump test.
EN 12350-5, Testing fresh concrete - Part 5: Flow table test.
EN 12350-7, Testing fresh concrete - Part 7: Air content - Pressure method.
prEN 12390-3:1999, Testing hardend concrete - Part 3: Compressive strength of test specimens.
ISO 758, Liquid chemical products for industrial use - Determination of density at 20 °C.
ISO 1158, Plastics - Vinyl chloride homopolymers and copolymers - Determination of chlorine.
Surface active agents - Determination of pH of aqueous solutions - Potentiometric method
ISO 4316, .
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply:
3.1 General definitions
3.1.1
performance
ability of an admixture to be effective in its intended use without detrimental effects
3.1.2
compliance dosage
the dosage of an admixture, expressed in % by mass of cement, stated by the manufacturer which will meet the
requirements of this standard. The compliance dosage is within the recommended range of dosage
3.1.3
recommended range of dosage
dosages between limits expressed in % by mass of cement which the manufacturer recommends for the product based
on experience on site
NOTE The use of the recommended dosage does not imply that compliance with this standard will be met over the whole range.
Trial tests should be carried out with the materials to be used on site to find the dosage necessary to achieve the required result.
3.1.4
maximum recommended dosage
upper limit of the recommended range of dosage
3.1.5
reference concrete and mortar
concrete and mortar as specified in EN 480-1 for testing admixtures for conformity with this standard
3.1.6
multifunction admixture
admixture which affects several properties of fresh and/or hardened concrete by performing more than one of the main
functions defined in 3.2.2 to 3.2.9
3.1.7
primary function
a single function of a multifunction admixture designated by the manufacturer
3.1.8
secondary function
a function of a multifunction admixture which is additional to the primary function
3.2 Specific definitions
3.2.1
admixtures for concrete
material added during the mixing process of concrete in a quantity not more than 5 % by mass of the cement content
of the concrete, to modify the properties of the mix in the fresh and /or hardened state
3.2.2
water reducing/plasticizing admixture
admixture which without affecting the consistence, permits a reduction in the water content of a given concrete mix, or
which, without affecting the water content increases the slump/flow or produces both effects simultaneously
3.2.3
high range water reducing/superplasticizing admixture
admixture which, without affecting the consistence, permits a high reduction in the water content of a given concrete
mix, or which, without affecting the water content increases the slump/flow considerably, or produces both effects
simultaneously
3.2.4
water retaining admixture
admixture which reduces the loss of water by a reduction of bleeding
3.2.5
air entraining admixture
admixture which allows a controlled quantitiy of small, unif
...