Cement - Part 4: Composition, specifications and conformity criteria for low early strength blastfurnace cements

This prEN 197-4 defines and gives the specifications of 3 distinct low early strength blastfurnace cement products 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, chemical, including where appropriate, heat of hydration, requirements and strength classes. This prEN 197-4 also states the conformity criteria and the related rules. Necessary durability requirements are also given.
NOTE 1   In addition to the specified requirements, an exchange of additional information between the cement producer and user can be helpful. The procedures for such an exchange are not within the scope of prEN 197-4 but should be dealt with in accordance with national standards or regulations or can be agreed between the parties concerned.
NOTE 2   The word "cement" in this prEN 197-4 is used to refer only to low early strength blastfurnace cements unless otherwise indicated.

Zement - Teil 4: Zusammensetzung, Anforderungen und Konformitätskriterien von Hochofenzement mit niedriger Anfangsfestigkeit

Diese prEN 197-4 legt die Anforderungen an drei verschiedene Hochofenzementprodukte mit niedriger Anfangsfestigkeit und ihre Bestandteile sowie die entsprechenden Definitionen fest. Die Definition jedes Zementes beinhaltet die Anteile, die erforderlich sind, um jedes dieser Produkte für drei Festigkeitsklassen herzustellen. Sie beinhaltet ferner die Anforderungen an die Bestandteile und an die mechanischen, physikalischen und chemischen Eigenschaften sowie - sofern zutreffend - die Anforderungen an die Hydratationswärme und die Festigkeitsklassen. Darüber hinaus werden in prEN 197-4 die Konformitäts-kriterien und die entsprechenden Regeln festgelegt. Die notwendigen Anforderungen an die Dauerhaftigkeit sind auch angegeben.
ANMERKUNG 1   Neben den festgelegten Anforderungen kann ein Austausch von zusätzlichen Informationen zwischen Zementhersteller und -anwender hilfreich sein. Die Vorgehensweisen für einen solchen Informationsaustausch sind nicht Gegenstand von prEN 197-4. Sie sollten in Übereinstimmung mit nationalen Normen oder Vorschriften festgelegt werden oder können zwischen den Beteiligten vereinbart werden.
ANMERKUNG 2   Sofern nicht anders angegeben, kennzeichnet das Wort "Zement" in prEN 197-4 ausschließlich Hochofenzemente mit niedriger Anfangsfestigkeit.

Ciment - Partie 4 : Composition, spécification et critères de conformité des ciments de haut fourneau et à faible résistance à court terme

La présente EN 197-4 définit et fournit les spécifications de 3 ciments de haut fourneau à faible résistance à court terme et de leurs constituants. La définition de chaque ciment inclut les proportions dans lesquelles les constituants doivent être associés pour produire ces produits différents dans trois classes de résistance. La définition comporte également des exigences que les constituants doivent satisfaire ainsi que les exigences mécaniques, physiques, chimiques et, le cas échéant, de chaleur d'hydratation, de même que les classes de résistance. La présente EN 197-4 établit également les critères de conformité et les règles correspondantes. En outre, elle fournit des exigences portant sur la durabilité.
NOTE 1   En plus des exigences spécifiées, il peut s'avérer utile que le fabricant et l'utilisateur du ciment échangent des informations complémentaires. Les procédures afférentes à un tel échange ne sont pas du domaine d'application de l'EN 197-4, mais il convient de les traiter conformément aux normes ou réglementations nationales ; elles peuvent également faire l'objet d'un accord entre les parties concernées.
NOTE 2   Sauf spécification contraire, le mot " ciment " est utilisé dans la présente EN 197-4 uniquement pour qualifier les ciments de haut fourneau à faible résistance à court terme.

Cement - 1. del: Sestava, zahteve in merila skladnosti za žlindrine cemente z nizko zgodnjo trdnostjo

General Information

Status
Withdrawn
Publication Date
20-Apr-2004
Withdrawal Date
13-Sep-2011
Current Stage
9960 - Withdrawal effective - Withdrawal
Due Date
14-Sep-2011
Completion Date
14-Sep-2011

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cement - Part 4: Composition, specifications and conformity criteria for low early strength blastfurnace cementsCement - 1. del: Sestava, zahteve in merila skladnosti za žlindrine cemente z nizko zgodnjo trdnostjoCiment - Partie 4 : Composition, spécification et criteres de conformité des ciments de haut fourneau et a faible résistance a court termeZement - Teil 4: Zusammensetzung, Anforderungen und Konformitätskriterien von Hochofenzement mit niedriger AnfangsfestigkeitTa slovenski standard je istoveten z:EN 197-4:2004SIST EN 197-4:2004en91.100.10ICS:SLOVENSKI

STANDARDSIST EN 197-4:200401-julij-2004

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 197-4April 2004ICS 91.100.10English versionCement - Part 4: Composition, specifications and conformitycriteria for low early strength blastfurnace cementsCiment - Partie 4 : Composition, spécification et critères deconformité des ciments de haut fourneau et à faiblerésistance à court termeZement - Teil 4: Zusammensetzung, Anforderungen undKonformitätskriterien von Hochofenzement mit niedrigerAnfangsfestigkeitThis European Standard was approved by CEN on 19 September 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36

B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 197-4:2004: E

EN 197-4:2004 (E)2ContentsPageForeword......................................................................................................................................................................3Introduction.................................................................................................................................................................41Scope...............................................................................................................................................................42Normative references....................................................................................................................................43Terms and definitions....................................................................................................................................54Low early strength blastfurnace cement.....................................................................................................55Constituents...................................................................................................................................................56Composition and notation............................................................................................................................57Mechanical, physical, chemical and durability requirements...................................................................68Standard designation....................................................................................................................................89Conformity criteria.........................................................................................................................................8Annex A (informative)

Water-soluble hexavalent chromium................................................................................14Annex ZA (informative)

Clauses of this European Standard addressing the provisions of EU ConstructionProducts Directive.......................................................................................................................................15

EN 197-4:2004 (E)3ForewordThis document (EN 197-4:2004) has been prepared by Technical Committee CEN/TC 51 “Cement and building limes”,the secretariat of which is held by IBN.This European Standard shall be given the status of a national standard, either by publication of an identical text or byendorsement, at the latest by October 2004, and conflicting national standards shall be withdrawn at the latest by October2004.This document has been prepared under a mandate given to CEN by the European Commission and the European FreeTrade 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.Annex A is informative.This document includes a Bibliography.The various stages in the development of a European Standard for common cement, in response to the preliminaryMandate given to CEN by the EC and the EFTA, are described in EN 197-1. It is indicated that, in view of the largenumbers of different cements involved, it was considered necessary to separate the "common cements", which are nowcovered by EN 197-1, from special cements i.e. those with additional or special properties or those having hardeningprocesses not mainly dependent on the hydration of calcium silicates.The strength attained at 28 days is the important criterion in classifying cement for most uses. In order to achieve aspecific strength class at 28 days the early strength, at 2 days or at 7 days, can vary and some types of cement may notattain the minimum early strengths specified in EN 197-1 for common cements. The heat of hydration is linked to the earlyreactivity and lower early strengths indicate lower heat evolution and lower temperatures in concrete. For these cementsadditional precautions in use can be necessary to ensure adequate curing and safety in construction. The purpose of thisEN 197-4 is to specify the composition requirements and conformity requirements for low early strength blastfurnacecements and low early strength blastfurnace cements with low heat of hydration.The requirements in EN 197-4 are based on the results of tests on cement in accordance with EN 196 Parts 1, 2, 3, 7, 8,9 and 21. The scheme for the evaluation of conformity of low early strength blastfurnace cements to EN 197-4 is includedin EN 197-2.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries arebound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EN 197-4:2004 (E)4IntroductionIt is recognised that different cements have different properties and performance. Those performance tests now available(i.e. setting time, strength, soundness and heat of hydration), have been included in this EN 197-4. In addition, work isbeing carried out by CEN/TC 51 to identify any additional tests which are needed to specify further performancecharacteristics of cement. Until further performance tests are available it is highly recommended that the choice ofcement, especially the type and/or strength class in relation to the requirements for durability depending on exposureclass and type of construction in which it is incorporated, follows the appropriate standards and/or regulations for concretevalid in the place of use.1 ScopeThis EN 197-4 defines and gives the specifications of 3 distinct low early strength blastfurnace cement products and theirconstituents. The definition of each cement includes the proportions in which the constituents are to be combined toproduce these distinct products in a range of three strength classes. The definition also includes requirements theconstituents have to meet and the mechanical, physical, chemical, including where appropriate, heat of hydration,requirements and strength classes. This EN 197-4 also states the conformity criteria and the related rules. Necessarydurability requirements are also given.NOTE 1In addition to the specified requirements, an exchange of additional information between the cement producer and user canbe helpful. The procedures for such an exchange are not within the scope of EN 197-4 but should be dealt with in accordance withnational standards or regulations or can be agreed between the parties concerned.NOTE 2The word "cement" in this EN 197-4 is used to refer only to low early strength blastfurnace cements unless otherwiseindicated.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. These normativereferences 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 whenincorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies(including amendments).EN 196-1, Methods of testing cement — Part 1 : Determination of strength.EN 196-2, Methods of testing cement — Part 2 : Chemical analysis of cement.EN 196-3, Methods of testing cement — Part 3 : Determination of setting time and soundness.EN 196-7, Methods of testing cement — Part 7 : Methods of taking and preparing samples of cement.EN 196-8, Methods of testing cement —- Part 8 : Determination of heat of hydration — Solution method.EN 196-9, Methods of testing cement — Part 9 : Determination of heat of hydration — Semi-adiabatic method.EN 196-211) , Methods of testing cement — Part 21 : Determination of the chloride, carbon dioxide and alkali content ofcement.

1)EN 196-21 is currently being incorporated into EN 196-2.

EN 197-4:2004 (E)5EN 197-1:2000, Cement — Part 1 : Composition, specifications and conformity criteria for common cements.EN 197-1:2000/A1:2004, Cement — Part 1 : Composition, specifications and conformity criteria for common cements.EN 197-2:2000, Cement — Part 2 : Conformity evaluation.3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN 197-1:2000 and the following apply.3.1type of low early strength blastfurnace cementone of the 3 products (see Table 1) in the family of low early strength cements3.2heat of hydrationquantity of heat developed by the hydration of a cement within a given period of time3.3low heat low early strength blastfurnace cementlow early strength blastfurnace cement with a limited heat of hydration4 Low early strength blastfurnace cementLow early strength blastfurnace cement is a hydraulic binder, i.e. a finely ground inorganic material which, when mixedwith water, forms a paste which sets and hardens by means of hydration reactions and processes and which, afterhardening, retains its strength and stability even under water. It has hydration reactions and processes identical to thoseof common cements (see EN 197-1) but through composition, fineness or reactivity of constituents the early hydrationprocess is slower.5 ConstituentsFor the purpose of this European Standard the requirements for constituents specified in clause 5 of EN 197-1:2000apply.6 Composition and notationThe 3 products in the family of low early strength blastfurnace cements, covered by this European Standard, and theirnotation are given in Table 1. They are grouped into one main cement type:¾ CEM III

Blastfurnace cementThe composition of the different low early strength blastfurnace cements shall be in accordance with Table 1.NOTEFor clarity in definition, the requirements for the composition refer to the sum of all main and minor additional constituents.The final cement should be understood as the main and minor additional constituents plus the necessary calcium sulfate (see 5.4 of EN197-1:2000) and any additives (see 5.5 of EN 197-1:2000).

EN 197-4:2004 (E)6Table 1 — The 3 products in the family of low early strength blastfurnace cementsComposition (proportion by mass, in % a)Main constituentsClinkerBlastfurnaceSlagMinor additionalconstituentsMain typesNotation of the 3 products(types of low early strengthblastfurnace cements)KSCEM III/A35-6436-650-5CEM III/B20-3466-800-5CEM IIIBlastfurnacecementCEM III/C5-1981-950-5aThe values in the table refer to the sum of the main and minor additional constituents.7 Mechanical, physical, chemical and durability requirements7.1 Mechanical requirements7.1.1 Standard strengthThe standard strength of cement is the compressive strength determined in accordance with EN 196-1 at 28 days andshall conform to the requirements in Table 2, which are identical to those in EN 197-1.Three classes of standard strength, as defined in EN 197-1, are included; class 32,5, class 42,5 and class 52,5 (seeTable 2).7.1.2 Early strengthThe early strength of cement is the compressive strength determined in accordance with EN 196-1 at either 2 days or7 days and shall conform to the requirements in Table 2.One class of early strength is included for each class of standard strength indicated by L (see Table 2).NOTEThe requirements for early strength class (L) for these cements are the only requirements that differ from those in EN 197-1.Table 2 — Mechanical and physical requirements given as characteristic valuesCompressive strengthMPaEarly strengthStandard strengthInitialsetting timeSoundness(Expansion)Strength class2 days7 days28 daysminmm32,5 L–³ 12,0³ 32,5£ 52,5³ 7542,5 L–³ 16,0³ 42,5£ 62,5³ 6052,5 L³ 10,0–³ 52,5–³ 45£ 10

EN 197-4:2004 (E)77.2 Physical requirements7.2.1 Initial setting timeThe initial setting time, determined in accordance with EN 196-3, shall conform to the requirements in Table 2, which areidentical to those in EN 197-1.7.2.2 SoundnessThe expansion, determined in accordance with EN 196-3, shall conform to the requirement in Table 2, which is identicalto that in EN 197-1.7.2.3 Heat of hydrationThe heat of hydration of low heat low early strength blastfurnace cements shall not exceed the characteristic value of270 J/g, determined in accordance with either EN 196-8 at 7 days or in accordance with EN 196-9 at 41 h and is identicalto that in EN 197-1: 2000/A1:2004.NOTEA pre-normative research project has demonstrated the equivalence of test results for EN 196-8 at 7 days and EN 196-9 at41 h. Nevertheless, in case of dispute between laboratories, the method to be applied should be agreed.Low heat low early strength blastfurnace cements are indicated by LH.7.3 Chemical requirementsThe properties of the cements of the cement type and strength class shown in columns 3 and 4 respectively of Table 3shall conform to the requirements listed in column 5 of this table when tested in accordance with the standard referred toin column 2. These requirements are identical to those in EN 197-1 for the cement types CEM III.NOTESome European countries have regulations for the content of water-soluble hexavalent chromium (see informative annexA).Table 3 — Chemical requirements given as characteristic values12345PropertyTest referenceCement typeStrength classRequirements aLoss on ignitionEN 196-2CEM IIIall£ 5,0 %Insoluble residueEN 196-2 bCEM IIIall£ 5,0 %Sulfate content (as SO3)EN 196-2CEM III call£ 4,0 %Chloride contentEN 196-21CEM III dall£ 0,10 %aRequirements are given as percentage by mass of the final cement.bDetermination of residue insoluble in hydrochloric acid and sodium carbonate.cCement type CEM III/C may contain up to 4,5 % sulfate.dCement type CEM III may contain more than 0,10 % chloride but in that case the maximum chloride content shall be stated onthe packaging and/or the delivery note.7.4 Durability requirementsIn many applications, particularly in severe environmental conditions, the choice of cement has an influence on thedurability of concrete, mortar and grouts, e. g. frost resistance, chemical resistance and protection of reinforcement.

EN 197-4:2004 (E)8The choice of cement, from this European Standard, particularly as regards type and class for different applications andexposure classes shall follow the appropriate standards and/or regulations for concrete or mortar valid in the place of use.These cements will have lower early strength compared with a common cement of the same standard strength class andmay require additional precautions in their use such as extension of formwork stripping times and protection duringadverse weather. In all other respects their performance and suitability of application will be similar to those of commoncements, conforming to EN 197-1, of the same type and standard strength class.8 Standard designationLow early strength blastfurnace cements shall be identified by at least the notation of the cement type as specified inclause 6 and the figures 32,5, 42,5, or 52,5 indicating the strength class (see 7.1). In order to indicate the low earlystrength the letter L shall be added (see 7.1). For cements having a low heat of hydration this shall be indicated by addingthe letters LH (see 7.2.3).EXAMPLE 1Blastfurnace cement with a granulated blastfurnace slag (S) content between 66 % and 80 %, a strength class 32,5and low early strength is identified by:Low early strength blastfurnace cement EN 197-4 – CEM III/B 32,5 L.EXAMPLE 2Blastfurnace cement with a granulated blastfurnace slag (S) content between 81 % and 95 %, a strength class 32,5,low early strength and low heat of hydration is identified by:Low early strength low heat blastfurnace cement EN 197-4 – CEM III/C 32,5 L - LH.9 Conformity criteria9.1 General requirementsConformity of the 3 products to this European Standard shall be continually evaluated on the basis of testing of spotsamples. The properties, test methods and the minimum testing frequencies for the autocontrol testing by themanufacturer are specified in Table 4. Concerning testing frequencies for cement not being dispatched continuously andother details, see EN 197-2.For certification of conformity by an approved certification body, conformity of cement with this European Standard shallbe evaluated in accordance with the scheme specified in EN 197-2.NOTEThis European Standard does not deal with acceptance inspection at delivery.

EN 197-4:2004 (E)9Table 4 — Properties and test methods and minimum testing frequencies for the autocontrol testing by themanufacturer and the statistical assessment procedureAutocontrol testingMinimum testing frequencyStatistical assessment procedureInspection byPropertyCementsto betestedTestmethod a bRoutinesituationInitial period for anew type of cementVariables eAttributes1234567Early strengthStandard strengthAllEN 196-12/week4/weekxInitial setting timeAllEN 196-32/week4/weekx fSoundness(expansion)AllEN 196-31/week4/weekxLoss on ignitionAllEN 196-22/month c1/weekx fInsoluble residueAllEN 196-22/month c1/weekx fSulfate contentAllEN 196-22/week4/weekx fChloride contentAllEN 196-212/month c1/weekx fHeat of hydrationLow heatcementsEN 196-8 orEN 196-91/month1/weekx fCompositionAll– d1/month1/weekaWhere allowed in the relevant part of EN 196, other methods than those indicated may be used providing they give results equivalent to thoseobtained with the reference method.bThe methods used to take and prepare samples shall be in accordance with EN 196-7.cWhen none of the test results within a period of 12 months exceeds 50 % of the characteristic value the frequency may be reduced to one permonth.dAppropriate test method chosen by the manufacturer.eIf the data are not normally distributed then the method of assessment may be decided on a case by case basis.fIf the number of samples is at least one per week during the control period, the assessment may be made by variables.9.2 Conformity criteria for mechanical, physical and chemical properties and evaluation procedure9.2.1 GeneralConformity of cement to the requirements for mechanical, physical and chemical properties in this European Standard isassumed if the conformity criteria specified in 9.2.2 and 9.2.3 are met. Conformity shall be evaluated on the basis ofcontinual sampling using spot samples taken at the point of release and on the basis of the test results obtaine

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