SIST EN 934-3:2004

SLOVENSKI STANDARD
SIST EN 934-3:2004
01-april-2004
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Admixtures for concrete, mortar and grout - Part 3: Admixtures for masonry mortar -
Definitions, requirements, conformity, marking and labelling
Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 3: Zusatzmittel für Mauermörtel -
Definitionen, Anforderungen, Konformität, Kennzeichnung und Beschriftung
Adjuvants pour béton, mortier et coulis - Partie 3: Adjuvants pour mortier a maçonner -
Définitions, exigences, conformité, marquage et étiquetage
Ta slovenski standard je istoveten z: EN 934-3:2003
ICS:
01.040.91
91.100.10
SIST EN 934-3:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN 934-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2003
ICS 01.040.91; 91.100.10
English version
Admixtures for concrete, mortar and grout - Part 3: Admixtures
for masonry mortar - Definitions, requirements, conformity,
marking and labelling
Adjuvants pour béton, mortier et coulis - Partie 3: Adjuvants Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 3:
pour mortier de montage - Définitions, exigences, Zusatzmittel für Mauermörtel - Definitionen, Anforderungen,
conformité, marquage et étiquetage Konformität, Kennzeichnung und Beschriftung
This European Standard was approved by CEN on 3 April 2003.
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,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, 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
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 934-3:2003 E
worldwide for CEN national Members.

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EN 934-3:2003 (E)
Contents
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions.5
4 Requirements .5
5 Sampling.7
6 Conformity control.7
7 Evaluation of conformity.8
8 Marking and labelling .8
8.1 General.8
8.2 Designation of admixtures.8
8.3 Additional information.9
Annex A (informative) Content and release of dangerous substances.10
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive ZA.1 .11
ZA.1 Scope and relevant characteristics .11
ZA.2 Procedure for attestation of conformity of admixtures for masonry mortar.12
ZA.2.1 System of attestation of conformity.12
ZA.2.2 EC certificate and declaration of conformity .13
ZA.3 CE marking and labelling.14
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EN 934-3:2003 (E)
Foreword
This document (EN 934-3:2003) has been prepared by Technical Committee CEN/TC 104 “Concrete and related
products”, 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 June 2004, and conflicting national standards shall be withdrawn at the latest by
April 2005.
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 Direkctive(s) see informative annex ZA which is an integral part of this standard.
This European standard is a part of the series EN 934 "Admixtures for concrete, mortar and grout" which
additionally comprises the following parts
 Part 2: Concrete admixtures - Definitions, requirements, conformity, marking and labelling
 Part 4: Admixtures for grout for prestressing tendons – Definitions, requirements, conformity and marking and
labelling
 Part 5: Admixtures for sprayed concrete – Definitions, requirements, conformity and marking and labelling
 Part 6: Sampling, conformity control, evaluation of conformity
This European Standard is used with the standards of the EN 480 series which comprise 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, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,
Slovakia, Spain, Sweden, Switzerland and the United Kingdom.
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EN 934-3:2003 (E)
1 Scope
This Draft European Standard defines and specifies the requirements and conformity criteria for admixtures for use
in cement based masonry mortar.
It covers two types of admixtures, long term retarding and air entraining/plasticising which are used in ready-mixed
and site made masonry mortars.
Provisions for the use of admixtures for masonry mortar are not part of this standard but are covered by EN 998-2.
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.
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 conventional dry
material content.
EN 480-10, Admixtures for concrete, mortar and grout — Test methods — Part 10: Determination of water soluble
chloride content.
EN 480-12, Admixtures for concrete, mortar and grout — Test methods — Part 12: Determination of the alkali
content of admixtures.
EN 480-13, Admixtures for concrete, mortar and grout — Test methods — Part 13: Reference masonry mortar for
testing mortar admixtures.
EN 934-2, Admixtures for concrete, mortar and grout — Part 2: Concrete admixtures — Definitions, requirements,
conformity and marking and labelling.
EN 934-6:2001, Admixtures for concrete, mortar and grout — Part 6: Sampling, conformity control and evaluation
of conformity.
EN 998-1:2003, Specification for mortar for masonry — Part 1: Rendering and plastering mortar.
EN 998-2:2003, Specification for mortar for masonry — Part 2: Masonry mortar.
EN 1015-4, Methods of test for mortar for masonry — Part 4: Determination of consistence of fresh mortar (by
plunger penetration).
EN 1015-7, Methods of test for mortar for masonry — Part 7: Determination of air content of fresh mortar.
EN 1015-9, Methods of test for mortar for masonry — Part 9: Determination of workable life and correction time of
fresh mortar.
EN 1015-11, Methods of test for mortar for masonry — Part 11: Determination of flexural and compressive strength
of hardened mortar.
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 content.
ISO 4316, Surface active agents — Determination of pH of aqueous solutions — Potentiometric method.
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EN 934-3:2003 (E)
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
Air entraining/plasticizing admixture
Admixture which increases workability, or allows water reduction, by incorporating during mixing a controlled
quantity of small, uniformly distributed air bubbles which remain after hardening.
3.2
Set retarding admixture for long term retarded masonry mortar
Set retarding admixture as defined in EN 934-2 but specifically intended for use in long term retarded mortar
incorporating entrained air.
3.3
Performance
Ability of an admixture to be effective in its intended use without detrimental effect.
3.4
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.
3.5
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 achieved 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.
3.6
Maximum recommended dosage
Upper limit of the recommended range of dosage.
4 Requirements
Masonry mortar admixtures, when sampled in accordance with EN 934-6, shall comply with the requirements in
table 1 using the test methods listed therein. Additional requirements specific to different types of mortar
admixtures are included in tables 2 and 3.
NOTE 1 Test should be carried out with the admixtures and other materials intended to be used in the mortar to check
whether the desired effect can be obtained.
For content of substances and release of substances from the hardened mortar which are dangerous to health,
hygiene and the environment see Annex A (informative).
NOTE 2 For requirements necessary for CE-marking see Annex ZA.
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EN 934-3:2003 (E)
Table 1 — General requirements
Property Test method a
Requirement
1 Homogeneity Visual Homogeneous when used. Segregation shall not exceed the limit
declared by the manufacturer
2 Colour Visual Uniform and similar to the description provided by the manufacturer
3 Effective EN 480-6 IR spectrum to show no significant change with respect to the effective
component component when compared to the reference spectrum provided by the
manufacturer
4 Relative density ISO 758 D ± 0,03 if D > 1,10
(for liquids only) D ± 0,02 if D £ 1,10
where D is the value declared by the manufacturer
5 Conventional dry EN 480-8 0,95T £ X £ 1,05T for T ‡ 20 %
material content
0,90T £ X £ 1,10T for T < 20 %
where T is the value in % by mass declared by the manufacturer and X
is the test result in % by mass
6 pH value ISO 4316 Value declared by the manufacturer ± 1 or within the range declared by
the manufacturer
f
7 b c Not above the value declared by the manufacturer
Total chlorine ISO 1158
f
8 Water soluble EN 480-10 Not above the value declared by the manufacturer
–
chloride (Cl )
d
9 Alkali content EN 480-12 not above the value declared by the manufacturer
(Na O
2
equivalent)
e
10 Corrosion No corrosion promoting effects on steel embedded in mortar
behaviour
a
Values declared by the manufacturer shall be documented and provided to the user on request.
b
If there is no significant difference between total chlorine content and water soluble chloride content, only the water soluble
chloride content shall be determined in subsequent tests on the admixture involved.
c
The procedure in ISO 1158 shall be modified as follows:
 In crease the sample size to 0,1 g of dry admixtures.
 Use silver nitrate and amonium thioczyanate solution 0,01 N.
d
For testing, CEM I with C A content less than 5 % by mass shall be used.
3
e
Until there is an accepted European Standard the national regulations in the place of use shall apply.
f
Where the chloride content is £ 0,10 % m/m the admixture may be described as "chloride free".
Table 2 — Additional requirements for air entraining/plasticizing admixtures at equal consistence
a
Property Reference mortar Test method
Requirement
1 Air content after EN 480-13 EN 1015-7 Total air content A = (17 ± 3) % by
1
standard mixing volume
method A
2 Air content after 1 h standing EN 480-13 EN 1015-7‡ A – 3 %
1
method A
3 Air content after extended EN 480-13 EN 1015-7£ A + 5 % and ‡ A – 5 %
1 1
mixing
method A
4 Reduction in water EN 480-13 EN 480-13‡ 8 % by mass
requirement for standard
consistence
5 Compressive strength at EN 480-13 EN 1015-11
...