EN 197-4:2004/prA1

SLOVENSKI STANDARD
SIST EN 197-4:2004/oprA1:2006
01-november-2006
Cement - 4. del: Sestava, zahteve in merila skladnosti za žlindrine cemente z nizko
zgodnjo trdnostjo - Dopolnilo A1
Cement - Part 4: Composition, specifications and conformity criteria for low early strength
blastfurnace cements; Amendment A1
Zement - Teil 4: Zusammensetzung, Anforderungen und Konformitätskriterien von
Hochofenzement mit niedriger Anfangsfestigkeit; Änderung A1
Ciment - Partie 4 : Composition, spécification et criteres de conformité des ciments de
haut fourneau et a faible résistance a court terme; Amendement A1
Ta slovenski standard je istoveten z: EN 197-4:2004/prA1
ICS:
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
SIST EN 197-4:2004/oprA1:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
DRAFT
EN 197-4:2004
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
August 2006
ICS 91.100.10

English Version
Cement - Part 4: Composition, specifications and conformity
criteria for low early strength blastfurnace cements; Amendment
A1
Ciment - Partie 4 : Composition, spécification et critères de Zement - Teil 4: Zusammensetzung, Anforderungen und
conformité des ciments de haut fourneau et à faible Konformitätskriterien von Hochofenzement mit niedriger
résistance à court terme; Amendement A1 Anfangsfestigkeit; Änderung A1
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 51.
This draft amendment A1, if approved, will modify the European Standard EN 197-4:2004. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment was established by CEN 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, 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 197-4:2004/prA1:2006: E
worldwide for CEN national Members.

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EN 197-4:2004/prA1:2006 (E)
Foreword
This document (EN 197-4:2004/prA1:2006) has been prepared by Technical Committee CEN/TC 51 “Cement and
building limes”, the secretariat of which is held by IBN.
This document is currently submitted to the CEN Enquiry.
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 EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
This Amendment extends the European Standard EN 197-4:2004 to cover the optional property of sulfate
resistance for low early strength blastfurnace cement. The further technical content of EN 197-4:2004 has not been
changed.

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EN 197-4:2004/prA1:2006 (E)
The numbering of the clauses refers to EN 197-4:2004.
Amendment 1
Foreword
Add (modification is underlined):
rd
3 paragraph:
The amendment A1:2006 contained the sulfate resisting low early strength blastfurnace cements.
th
9 paragraph:
The requirements in EN 197-4 are based on the results of tests on cement in accordance with EN 196-1, -2, -3, -5,
-6, -7, -8, and -9. The scheme for the evaluation of conformity of low early strength blastfurnace cements and low
early strength blastfurnace cements with adequate sulfate resistance is specified in EN 197-2.
th
10 paragraph:
In order to find out whether cement with high sulfate resistance should be taken into account in EN 197, there was
an investigation within CEN/TC 51 comprising all national specifications and recommendations in the European
Union. The review of these investigations led to the following results:
- A wide variety of cements are classified in the EU Member States. This is due to the different geographical and
climatic conditions under which sulphate attacks on mortar and concrete occur at the place of use and the
traditionally different rules governing the production and use of sulphate resistant mortars and concretes.
- Sulfate resistance is an additional property and therefore sulfate resisting cements have first to comply with the
requirements of the standards which define the product, e. g. EN 197-4 low early strength blastfurnace cements.
- The additional requirements to be met by the nationally specified sulfate resisting cements refer to selected
characteristics for which the required limit values are more stringent than those for low early strength blastfurnace
cements.
- Having satisfied the local requirements for various cement types many countries apply further restrictions to the
production of concrete to be used in a sulfate environment, such as minimum cement contents and/or maximum
water/cement ratio that vary depending on the cement type and the type and intensity of the sulphate conditions.
Based on the above results low early strength blastfurnace cements types to be harmonized on European level on
a consensual basis have been chosen. The predominant part of the low early strength blastfurnace cements with
high sulfate resistance in the market is covered by this selection. It was not possible to take into account national
local particularities the use of which is laid down within national application rules and regulations/provisions.
1 Scope
Add (modification is underlined):
This EN 197-4 defines and gives the specifications of 3 distinct low early strength blastfurnace cement products
and 2 sulfate resisting low early strength blastfurnace cements and their constituents. The definition of each
cement includes the proportions in which the constituents are to be combined to produce these distinct products in
a range of three strength classes. The definition also includes requirements the constituents have to meet and the
mechanical, physical and chemical, including where appropriate, heat of hydration, requirements and strength
classes. This EN 197-4 also states the conformity criteria and the related rules. Necessary durability requirements
are also given.
In addition to
...