EN 934-5:2007

Admixtures for concrete, mortar and grout - Part 5: Admixtures for sprayed concrete - Definitions, requirements, conformity, marking and labelling

This European Standard defines and specifies requirements and conformity for admixtures specifically intended for use in sprayed concrete.
The types of admixtures covered are:
   set accelerating and non-alkaline set accelerating admixtures;
   consistence control admixtures;
   bond improving admixtures.
Provisions governing the practical application of these admixtures in the production of sprayed concrete are not part of this European Standard.

Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 5: Zusatzmittel für Spritzbeton - Begriffe, Anforderungen, Konformität, Kennzeichnung und Beschriftung

In dieser Europäischen Norm werden Anforderungen und Konformitätskriterien für Zusatzmittel speziell für Spritzbeton definiert und festgelegt.
Es werden folgende Zusatzmittel behandelt:
   Erstarrungsbeschleuniger und nicht alkalihaltige Erstarrungsbeschleuniger;
   Konsistenzregler;
   Verbundverbesserer.
Festlegungen zur praktischen Anwendung dieser Zusatzmittel bei der Herstellung von Spritzbeton sind nicht Gegenstand dieser Europäischen Norm.

Adjuvants pour béton, mortier et coulis - Partie 5 : Adjuvants pour béton projeté - Définitions, exigences, conformité, marquage et étiquetage

La présente Norme européenne définit et spécifie les exigences relatives aux adjuvants destinés spécifiquement à être utilisés dans le béton projeté et leur conformité.
Les types d’adjuvants traités sont les suivants :
   accélérateurs de prise et accélérateurs de prise sans alcalins ;
   adjuvants témoins pour la consistance ;
   adjuvants améliorant l’adhérence.
La présente Norme européenne ne comporte pas de dispositions régissant l’application pratique de ces adjuvants dans la production de béton projeté.

Kemijski dodatki za beton, malto in injekcijsko maso - 5. del: Kemijski dodatki za brizgani beton - Definicije, zahteve, skadnost, označevanje in obeleževanje

General Information

• Status: Published
• Publication Date: 23-Oct-2007
• Withdrawal Date: 30-Jul-2009
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: CEN/TC 104 - Concrete ( performance, production, placing and compliance criteria )
• Drafting Committee: CEN/TC 104/SC 3 - Admixtures for concrete
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 30-Jun-2023
• Completion Date: 14-Apr-2025
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/128 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on products for concrete, mortar and grout
• Ref Project: SIST EN 934-5:2008 - Admixtures for concrete, mortar and grout - Part 5: Admixtures for sprayed concrete - Definitions, requirements, conformity, marking and labelling

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2008
.HPLMVNLGRGDWNL]DEHWRQPDOWRLQLQMHNFLMVNRPDVRGHO.HPLMVNLGRGDWNL]D
EUL]JDQLEHWRQ'HILQLFLMH]DKWHYHVNDGQRVWR]QDþHYDQMHLQREHOHåHYDQMH
Admixtures for concrete, mortar and grout - Part 5: Admixtures for sprayed concrete -
Definitions, requirements, conformity, marking and labelling
Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 5: Zusatzmittel für Spritzbeton -
Begriffe, Anforderungen, Konformität, Kennzeichnung und Beschriftung
Adjuvants pour béton, mortier et coulis - Partie 5 : Adjuvants pour bétons projetés -
Définitions, exigences, conformité, marquage et étiquetage
Ta slovenski standard je istoveten z: EN 934-5:2007
ICS:
91.100.10
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 934-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2007
ICS 91.100.10
English Version
Admixtures for concrete, mortar and grout - Part 5: Admixtures
for sprayed concrete - Definitions, requirements, conformity,
marking and labelling
Adjuvants pour béton, mortier et coulis - Partie 5 : Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 5:
Adjuvants pour bétons projetés - Définitions, exigences, Zusatzmittel für Spritzbeton - Begriffe, Anforderungen,
conformité, marquage et étiquetage Konformität, Kennzeichnung und Beschriftung
This European Standard was approved by CEN on 13 August 2007.
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 CEN 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 CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, 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
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 934-5:2007: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope .5
2 Normative references .5
3 Terms and definitions .6
3.1 General definitions .6
3.2 Specific definitions.6
4 Requirements.7
4.1 General requirements.7
4.2 Specific requirements .7
5 Sampling.10
6 Conformity control.10
7 Evaluation of conformity.11
8 Marking and labelling .11
8.1 General.11
8.2 Designation of admixtures.11
8.3 Additional information .11
Annex A (informative) Content and release of dangerous substances.12
Annex B (normative) Reference concrete for testing consistence control admixture .13
B.1 General.13
B.2 Cement content.13
B.3 Aggregates .13
B.4 Consistence.13
B.5 Compressive strength.14
B.6 Test report .14
Annex C (normative) Measurement of tensile bond strength.15
C.1 General.15
C.2 Preparation of the control and test mix.15
C.3 Applying the concrete and storage of specimens .15
C.4 Testing .16
C.5 Test report .16
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive.17
ZA.1 Scope and relevant characteristics .17
ZA.2 Procedure for attestation of conformity of admixtures for sprayed concrete.19
ZA.2.1 System of attestation of conformity .19
ZA.2.2 EC certificate and declaration of conformity .20
ZA.3 CE marking and labelling.20
Bibliography .22

Foreword
This document (EN 934-5:2007) 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 April 2008, and conflicting national standards shall be withdrawn at the
latest by July 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EC Directive(s).
For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this document.
This European Standard is a part of the series EN 934 Admixtures for concrete, mortar and grout which is
comprised of the following parts:
1)
Part 1: Common requirements
Part 2: Concrete admixtures — Definitions, requirements, conformity, marking and labelling
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 series EN 480 which comprises test methods for
admixtures.
Subject to the provisions in EN 14487-1, Sprayed concrete – Part 1: Definitions, specifications and conformity
admixtures covered by EN 934-2 may also be considered for the use in sprayed concrete.
A previous draft of EN 934-5 had been submitted to Formal Vote in 2004 and had formally passed the vote by
majority of CEN-members in 2005. Together with this vote, however, some members presented severe
technical comments which were agreed upon by the relevant CEN/TC 104/SC 3 to be taken into account by
an amendment. In order to avoid the need of using two separate papers in practice, CEN/TC 104 decided,
however, not to publish the agreed document but to submit a further consolidated version including the
amended issues to UAP, which finally should be published.
The amendments to the final draft prEN 934-5:2004-11 are the following:
- Table 1: requirements in line 5 (Conventional dry material content), 7 (Total chlorine) and 8 (Water soluble
chloride);
d
- Table 2: heading of table; curing conditions in footnote ;

1) This document is under preparation.
- Table 3: heading of table;
- Table 4: heading of table;
- Table 5: minimum frequency of testing of alkali content;
- Annex B: new clauses B.4 and B.5 with more details of testing; new clause B.6, extending the test report;
- Annex C: detailing the testing in clause C.4.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

1 Scope
This European Standard defines and specifies requirements and conformity for admixtures specifically
intended for use in sprayed concrete.
The types of admixtures covered are:
 set accelerating and non-alkaline set accelerating admixtures;
 consistence control admixtures;
 bond improving admixtures.
Provisions governing the practical application of these admixtures in the production of sprayed concrete are
not part of this European Standard.
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 196-1, Methods of testing cement — Part 1: Determination of strength
EN 196-3, Methods of testing cement — Part 3: Determination of setting times and soundness
EN 197-1, Cement — Part 1: Composition, specifications and conformity criteria for common cements
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 480-6, 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 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 934-6:2001, Admixtures for concrete, mortar and grout — Part 6: Sampling, conformity control and
evaluation of conformity
EN 1542:1999, Products and systems for the protection and repair of concrete structures — Test methods —
Measurement of bond strength by pull-off
EN 12350-2, Testing fresh concrete — Part 2: Slump test
EN 12350-5, Testing fresh concrete — Part 5: Flow table test
EN 12390-3, Testing hardened concrete — Part 3: Compressive strength of test specimens
EN ISO 1158, Plastics — Vinyl chloride homopolymers and copolymers — Determination of chlorine content
(ISO 1158:1998)
ISO 758, Liquid chemical products for industrial use — Determination of density at 20 degrees C
ISO 4316, Surface active agents — Determination of pH of aqueous solutions — Potentiometric method
3 Terms and definitions
For the purposes of this European 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
dosage of an admixture, expressed in % by mass of cement, stated by the manufacturer, which will meet the
requirements of this European Standard
NOTE The compliance dosage should be within the recommended range of dosage.
3.1.3
recommended range of dosage
dosages between limits expressed in % by mass of cement that 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 European 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
control mix
prescribed mix without admixture
3.1.6
test mix
prescribed mix incorporating an admixture
3.2 Specific definitions
3.2.1
sprayed concrete admixture
material added to the concrete mix before or during the spraying process, in a quantity not exceeding 5 % by
mass of cement, except for sprayed concrete set accelerating admixture, where the dosage should not
exceed 12 %, to modify the properties of the mix in the fresh and/or hardened state
3.2.2
sprayed concrete set accelerating admixture
admixture to develop very early setting of the sprayed concrete differing from set accelerating admixtures as
defined and specified in EN 934-2
3.2.3
non-alkaline sprayed concrete set accelerating admixture
sprayed concrete set accelerating admixture according to 3.2.2 with an alkali content (given as Na O-
equivalent) not exceeding 1,0 % by mass of the admixture
3.2.4
consistence control admixture
admixture that retains consistency for a long period
NOTE This type of admixture is normally used in combination with a compatible sprayed concrete set accelerating
admixture.
3.2.5
bond improving admixture
admixture added to the concrete mix before or during the process of spraying and which improves the bond
between the sprayed concrete layers and/or the substrate surface
4 Requirements
4.1 General requirements
All the admixtures defined in this European Standard shall conform to the general requirements given in
Table 1.
NOTE For requirements that lead to the CE-marking, see Table ZA.1.
4.2 Specific requirements
Additional to the general requirements in 4.1, the admixtures defined in 3.2.1 to 3.2.5 shall conform to the
following specific requirements:
Sprayed concrete set accelerating admixture Table 2
Non-alkaline sprayed concrete set accelerating admixture Table 2
Consistence control admixture Table 3
Bond improving admixture Table 4
These requirements shall be satisfied within the recommended range of dosage.
i
Table 1 — General requirements
Property Test method Requirements
Homogeneous when used. Segregation shall not
a
1 Homogeneity Visual
exceed the limit stated by the manufacturer.
Uniform and similar to the description declared
a
2 Colour Visual
by the manufacturer.
Infrared spectra to show no significant change
with respect to the effective component when
a b
3 Effective component EN 480-6
compared to reference spectrum provided by the
manufacturer.
D ± 0,03 if D > 1,10
D ± 0,02 if D ≤ 1,10
a
4 ISO 758
Relative density
Where D is the manufacturer's stated value of
density.
0,95 T ≤ X < 1,05 T, if T ≥ 20 %
0,90 T ≤ X < 1,10 T, if T < 20 %
a c
5 Conventional dry material content EN 480-8
T is manufacturer's stated value % m/m.; X is
test result % by mass on dry material content.
a
pH-Value (only for liquid
Manufacturer's stated value ± 1 or within
6 admixtures) ISO 4316
manufacturer's stated range.
Either ≤ 0,10 % by mass or not above the
a d e
7 Total chlorine EN ISO 1158
manufacturer's stated range.
h
Either ≤ 0,10 % by mass or not above the
a
8 Water soluble chloride EN 480-10
manufacturer's stated range.
Not above the manufacturer's stated maximum.
a
Alkali content (Na O-equivalent)
9 EN 480-12
≤ 1,0 % by mass for non-alkaline sprayed
concrete set accelerating admixture.
No corrosion promotion effects on steel
f g
10 Corrosion behaviour
embedded in concrete.
a
Manufacturer's stated value shall be provided in writing, to the user, on request.
b
If the method in EN 480-6 is not suitable, the manufacturer shall recommend an alternative test method.
c
If the method in EN 480-8 is not suitable, the manufacturer shall recommend an alternative test method.
d
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.
e
The procedure in EN ISO 1158 shall be modified as follows:
 increase the sample size to 0,1 g of dry admixture;
 use silver nitrate and ammonium thiocyanate solutions 0,01 N.
f
For testing, cement CEM I with C A content less than 5 % by mass shall be used.
g
If admixtures are tested for corrosion behaviour, tests should be performed in accordance with EN 480-14
h
Where the chloride content is ≤ 0,10 % by mass, the admixture may be described as "chloride free".
i
Table 1 including European provisions for corrosion behaviour will be incorporated in EN 934-1, "Admixtures for concrete, mortar and
grout - Part 1: Common requirements" which is currently under development. Table 1 shall be used when EN 934-1 is published.

Table 2 — Specific requirements for sprayed concrete set acceleration and non-alkaline set
acceleration admixtures at equal w/c ratio
Property Reference mortar Test Requirements
method
Initial setting time ≤ 10 min
Reference mortar
c
1 Setting time
EN 480-2 Final setting time ≤ 60 min
a b
EN 480-1
(average of three tests)
At 28 days:
Compressive strength of test mix ≥ 75 %
compressive strength of control mix or
≥ 90 % for non-alkaline accelerators.
Reference mortar
2 Compressive strength EN 196-1
a d e
EN 480-1
At 90 days:
Compressive strength of test mix ≥
compressive strength of test mix at
28 days.
a
The w/c ratio shall be ≤ 0,50 and such that the test mix shall have the standard consistence defined in EN 196-3 immediately prior to
addition of the admixture.
b
In difference to EN 480-1, the set accelerating admixture is added to a cement mortar of standard consistence, just before the end of
the mixing time. Adding the admixture, mixing and filling the mould, without undue segregation or vibration, shall be completed in a time
not exceeding 30 s.
c
The difference to EN 480-2, the total mass of the moving parts of the Vicat shall be (300 ± 2) g.
d
All components of the mortar shall be conditioned to a temperature of (5 ± 1) °C. The test specimen shall be stored at
(20 + 2) °C.
e
The set accelerating admixture is added to the mortar just before the end of the mixing time. The filling and compacting of the mould
with the mortar shall then be completed as quickly as possible.

Table 3 — Specific requirements for consistence control admixtures at equal con
...