EN 934-1:2008

SLOVENSKI STANDARD
01-april-2008
Kemijski dodatki za beton, malto in injekcijsko maso - Kemijski dodatki za beton -
1. del: Splošne zahteve
Admixtures for concrete, mortar and grout - Part 1: Common requirements
Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 1: Gemeinsame Anforderungen
Adjuvants pour béton , mortier et coulis - Partie 1 : Exigences communes
Ta slovenski standard je istoveten z: EN 934-1:2008
ICS:
91.100.30
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 934-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2008
ICS 91.100.30
English Version
Admixtures for concrete, mortar and grout - Part 1: Common
requirements
Adjuvants pour béton, mortier et coulis - Partie 1 : Zusatzmittel für Beton, Mörtel und Einpressmörtel - Teil 1:
Exigences communes Gemeinsame Anforderungen
This European Standard was approved by CEN on 24 October 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.
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© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 934-1:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
Introduction .4
1 Scope.5
2 Normative references.5
3 Terms and Definitions .6
4 General requirements.6
5 Corrosion behaviour.8
5.1 Testing and labelling .8
5.2 Test requirement.8
6 Special requirements.8
Annex A (normative) Approved and declared lists for corrosion behaviour.9
A.1 Approved list .9
A.2 Declared list.10

Foreword
This document (EN 934-1:2008) 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 July 2008, and conflicting national standards shall be withdrawn at the
latest by July 2008.
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 standard is part of the series EN 934 “Admixtures for concrete, mortar and grout”, which is comprised of
the following additional parts:
- 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 draft European Standard is used with the standards of the EN 480 series which comprises the test
methods for admixtures.
This standard has been prepared under a mandate issued to CEN by the European Commission and the
European Free Trade Association and supports essential requirements of the Construction Products Directive.
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.

Introduction
This European Standard covers the requirements that are common to all admixtures. The general
requirements replace those which were previously included in EN 934 parts 2 to 5. They include the
requirements for the effect on corrosion behaviour when admixtures are used in concrete, mortar or grout
containing embedded metal.
The requirements for corrosion behaviour in this standard include an approved list and a declared list of active
substances used in some admixtures. These lists are based on experience, which shows that the use of
admixtures only containing substances on the approved list do not promote the corrosion of embedded steel.
Materials on the declared list are subject, in some countries, to national restrictions on their use for certain
applications and should be declared on the CE mark.
The specific requirements that characterise the performance of an admixture in a cementitous mix are detailed
in EN 934 parts 2 to 5.
The special requirements are new and relate to specific uses of admixtures and/or their effect on the
environment. It is anticipated that, in the future, special requirements will result from European legislation and,
for example, will be applicable to admixtures used in concrete or mortar in contact with drinking water and to
the release of dangerous regulated substances.
1 Scope
This European Standard specifies the common requirements for all admixtures covered by EN 934-2,
EN 934-3, EN 934-4 and EN 934-5, which contain the specific requirements for each type of admixture.

The requirements for corrosion behaviour are not applicable to chloride based admixtures.
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 196-2, Methods of testing cement - Part 2: Chemical analysis of cement
EN 197-1, Cement - Part 1: Composition, specifications and conformity criteria for common cements
EN 206-1:2000, Concrete - Part 1: Specification, performance, production and conformity
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
...