SIST EN 16622:2016
(Main)Silica-calcium fume for concrete - Definitions, requirements and conformity criteria
Silica-calcium fume for concrete - Definitions, requirements and conformity criteria
This European Standard applies to the hydraulic silico-calcium fume (HSCF) which is a by-product of the smelting process used to produce silico-calcium alloys.
This European Standard gives requirements for chemical and physical properties for HSCF to be used as a type II addition in concrete conforming to EN 206-1, or in mortars, grouts and other mixes. This European Standard also states conformity criteria and related rules.
This European Standard does not give rules for the use of HSCF in concrete. Some general rules for the use of type II additions are given in EN 206-1.
NOTE Supplementary rules related to the use of HCSF in concrete may be given in non conflicting national standards for concrete.
Siliko-Calciumstaub für Beton - Definitionen, Anforderungen und Konformitätskriterien
Diese Europäische Norm gilt für hydraulischen Siliko-Calciumstaub (HSCF), das als Nebenprodukt des Schmelzprozesses zur Herstellung von Siliko-Calcium-Legierungen anfällt.
Diese europäische Norm enthält Anforderungen an die chemischen und physikalischen Eigenschaften, die HSCF besitzen muss, um als Typ II-Zusatzstoff für Beton nach EN 206 1 oder in Mörteln, Einpressmörteln und anderen Mischgütern verwendet werden zu können. Darüber hinaus enthält dieses Dokument Konformitäts¬kriterien und die dazugehörigen Regeln.
Diese europäische Norm enthält keine Regeln für die Verwendung von HSCF in Beton. Einige allgemeine Regeln zur Verwendung von Typ II-Zusatzstoffen sind in EN 206 1 festgelegt.
ANMERKUNG In nicht entgegenstehenden Betonnormen können ergänzende Regeln zur Verwendung von HCSF in Beton angegeben werden.
Fumées hydrauliques de silico-calcium pour béton - Définitions, exigences et critères de conformité
Le présent WI 00104341 concerne la fumée hydraulique de silico-calcium (HSCF), co-produit du procédé de fusion permettant de produire des alliages de silico-calcium.
Le présent WI 00104341 présente les caractéristiques chimiques et physiques exigées pour de la fumée HSCF utilisée en tant que produit d'addition du béton de type II conformément à l'EN 206-1, des mortiers, des coulis et d'autres mélanges. Le présent WI 00104341 présente également les critères de conformité ainsi que les règles associées.
Le WI 00104341 ne présente pas les règles d'utilisation de la fumée HSCF dans le béton. Certaines règles générales relatives à l'utilisation des produits d'addition de type II sont données dans l'EN 206-1.
NOTE Des normes nationales non conflictuelles relatives au béton peuvent présenter des règles supplémentaires relatives à l'utilisation de la fumée HSCF dans le béton.
Kalcijska mikrosilika za beton - Definicije, zahteve in merila skladnosti
Ta evropski standard se uporablja za hidravlično kalcijsko mikrosiliko (HSCF), ki je stranski proizvod pri postopku taljenja, ki se uporablja za izdelavo silicij-kalcijevih zlitin.
Ta evropski standard podaja zahteve za kemijske in fizikalne lastnosti za hidravlično kalcijsko mikrosiliko, ki se uporablja kot dodatek tipa II v betonu v skladu s standardom EN 206-1 ali v malti, zalivni masi in drugih mešanicah. Ta evropski standard določa tudi merila skladnosti in povezana pravila.
Ta evropski standard ne podaja navodil za uporabo hidravlične kalcijske mikrosilike v betonu. Nekatera splošna navodila za uporabo dodatkov tipa II so podana v standardu EN 206-1.
OPOMBA: Dodatna pravila glede uporabe hidravlične kalcijske mikrosilike v betonu so lahko podana v nacionalnih standardih, ki niso v nasprotju s tem standardom.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kalcijska mikrosilika za beton - Definicije, zahteve in merila skladnostiSiliko-Calciumstaub für Beton - Definitionen, Anforderungen und KonformitätskriterienFumées hydrauliques de silico-calcium pour béton - Définitions, exigences et critères de conformitéSilica-calcium fume for concrete - Definitions, requirements and conformity criteria91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:Ta slovenski standard je istoveten z:EN 16622:2015SIST EN 16622:2016en,fr,de01-maj-2016SIST EN 16622:2016SLOVENSKI
STANDARD
SIST EN 16622:2016
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16622
November
t r s w ICS
{ sä s r rä u r English Version
Silicaæcalcium fume for concrete æ Definitionsá requirements and conformity criteria Fumées de silicoæcalcium pour béton æ Définitionsá exigences et critères de conformité
SilikoæCalciumstaub für Beton æ Definitionená Anforderungen und Konformitätskriterien This European Standard was approved by CEN on
t x September
t r s wä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s w CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x x t tã t r s w ESIST EN 16622:2016
EN 16622:2015 (E) 2 Contents Page European foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 4 Health, hygiene and environment . 9 4.1 Release of dangerous substances . 9 4.2 Emission of radioactivity . 9 5 Product characteristics . 10 5.1 General . 10 5.2 Chemical requirements . 10 5.2.1 Silicon dioxide . 10 5.2.2 Elemental silicon . 10 5.2.3 Total calcium oxide . 10 5.2.4 Free calcium oxide . 10 5.2.5 Sulfate . 10 5.2.6 Total content of alkalis . 10 5.2.7 Chloride . 10 5.2.8 Loss on ignition . 11 5.3 Physical requirements . 11 5.3.1 Specific surface . 11 5.3.2 Activity index . 11 5.3.3 Particle density . 11 6 Assessment and verification of constancy of performance – AVCP. 11 6.1 General . 11 6.2 Type testing . 12 6.2.1 General . 12 6.2.2 Test samples, testing and compliance criteria . 13 6.2.3 Test reports . 13 6.3 Factory production control (FPC) . 13 6.3.1 General . 13 6.3.2 Requirements . 14 6.3.3 Product specific requirements . 17 6.3.4 Initial inspection of factory and of FPC . 17 6.3.5 Continuous surveillance of FPC . 18 6.3.6 Procedure for modifications . 18 7 Packaging, labelling and marking . 18 8 Compliance criteria . 19 8.1 General . 19 8.2 Statistical compliance criteria . 19 8.2.1 General . 19 8.2.2 Inspection by variables . 19 8.2.3 Inspection by attributes . 20 SIST EN 16622:2016
EN 16622:2015 (E) 3 8.3 Single result conformity criteria . 21 Annex ZA (informative)
Clauses of this European Standard addressing the provisions
of the EU Construction Products Regulation . 22 ZA.1 Scope and relevant characteristics . 22 ZA.2 Procedure for AVCP of SCF . 23 ZA.2.1 System of AVCP . 23 ZA.2.2 Declaration of performance (DoP) . 24 ZA.2.2.1 General . 24 ZA.2.2.2 Content . 25 ZA.2.2.3 Example of DoP . 26 ZA.3 CE marking and labelling . 28 Bibliography . 31
SIST EN 16622:2016
EN 16622:2015 (E) 4 European foreword This document (EN 16622:2015) 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 May 2016, and conflicting national standards shall be withdrawn at the latest by August 2017. 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. For relationship with Regulation (EU) No. 305/2011, see informative Annex ZA, which is an integral part of this document. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16622:2016
EN 16622:2015 (E) 5 Introduction Silica-calcium fume (SCF) according to this European Standard is a special type of silica fume containing some calcium. It is collected by filters as a by-product of the carbothermal process to produce silica-calcium alloys. It is only supplied as a densified product. SCF from more than one furnace, filter or intermediate storage silo will normally be blended in the production plant. Many years of practical experience, especially in France, have demonstrated that SCF which satisfies the requirements in this European Standard has both hydraulic and pozzolanic properties, and may be used to produce concrete with improved properties in both the fresh and hardened states. SCF is normally used in combination with a plasticizer and/or superplasticizer. This European Standard is based on EN 13263-1 “Silica fume for concrete - Part 1: Definitions, requirements and conformity criteria”, with similar structure and requirements. The differences in the material properties is taken into account, for instance that silica-calcium fume is partly hydraulic unlike silica fume. When it comes to conformity, this European Standard refers to EN 13263-2 “Silica fume for concrete - Part 2: Conformity evaluation”. SIST EN 16622:2016
EN 16622:2015 (E) 6 1 Scope This European Standard applies to the silica-calcium fume (SCF) which is a by-product of the carbothermal process used to produce silica-calcium alloys. This European Standard gives requirements for chemical and physical properties for SCF to be used as a type II addition in concrete conforming to EN 206, or in mortars, grouts and other mixes. This European Standard also states conformity criteria and related rules. This European Standard does not give rules for the use of SCF in concrete. Some general rules for the use of type II additions are given in EN 206. NOTE Supplementary rules related to the use of SCF in concrete may be given in non-conflicting national standards for concrete. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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 196-2, Method of testing cement — Part 2: Chemical analysis of cement EN 196-6, Methods of testing cement — Part 6: Determination of fineness EN 196-7, Methods of testing cement — Part 7: Methods of taking and preparing samples of cement EN 197-1, Cement — Part 1: Composition, specifications and conformity criteria for common cements EN 413-2, Masonry cement — Part 2: Test methods EN 451-1, Method of testing fly ash — Part 1: Determination of free calcium oxide content EN 934-2, Admixtures for concrete, mortar and grout — Part 2: Concrete admixtures — Definitions, requirements, conformity, marking and labelling EN 1097-7, Tests for mechanical and physical properties of aggregates — Part 7: Determination of the particle density of filler — Pyknometer method EN 13263-2, Silica fume for concrete — Part 2: Conformity evaluation ISO 9277, Determination of the specific surface area of solids by gas adsorption — BET method ISO 9286, Abrasive grains and crude — Chemical analysis of silicon carbide SIST EN 16622:2016
EN 16622:2015 (E) 7 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE Some terms and definitions from EN 13263–2 to which this European Standard refers are included here for convenience. Where needed they are modified for the application to SCF. 3.1 activity index ratio (in percent) of the compressive strength of standard mortar bars, prepared with 90 % test cement plus 10 % SCF by mass, to the compressive strength of standard mortar bars prepared with 100 % test cement, when tested at the same age 3.2 allowable probability of acceptance CR for a given sampling plan, allowed probability of acceptance of SCF with a characteristic value outside the specified characteristic value 3.3 characteristic value value having a prescribed probability of not being attained in a hypothetical unlimited test series Note 1 to entry: Equivalent to “fractile” which is defined in ISO 3534-1. [SOURCE: ISO 8930:1987] 3.4 control period period of production and dispatch identified for the assessment of the test results 3.5 densified SCF SCF that has been treated to increase the bulk density by particle agglomeration, the bulk density typically being above 500 kg/m3 3.6 depot bulk SCF handling facility – not located at the production plant – used for the dispatch of SCF– whether in bulk or bagged – after transfer or storage where the manufacturer has full responsibility for all aspects of the quality of the SCF 3.7 initial period immediate period after the first issuing of the declaration of performance for a SCF 3.8 determination of product type testing of the first audit sample 3.9 new production plant production plant which is not already producing SCF SIST EN 16622:2016
EN 16622:2015 (E) 8 3.10 production plant facility producing SCF: a) silica-calcium alloy production plant; b) processing plant, for example for the selection, blending or densifying of SCF 3.11 quality control part of quality management focused on fulfilling quality requirements [SOURCE: EN ISO 9000:2015, 3.3.7] 3.12 sampling plan specific plan which states the (statistical) sample size(s) to be used, the percentage Pk on which the characteristic value is based, and the allowable probability of acceptance CR [SOURCE: EN 13263-1:2005+A1:2009, 3.23] 3.13 silica-calcium fume (SCF) very fine particles of amorphous silicon dioxide and dicalcium silicate collected as a by-product of the carbothermal process used to produce silica-calcium alloys Note 1 to entry: SCF may be processed, for example by classification, selection, blending, densifying, or by a combination of these processes, in adequate production plants. Such processed SCF may consist of SCF from different sources, each conforming to the definition given in this subclause. 3.14 single result limit value value of a chemical or physical property which – for any single test result – in the case of an upper limit is not to be exceeded or in the case of a lower limit is, as a minimum, to be reached [SOURCE: EN 13263-1:2005+A1:2009, 3.26] 3.15 specified characteristic value characteristic value of a chemical or physical property which in the case of an upper limit is not to be exceeded or in the case of a lower limit is, as a minimum, to be reached [SOURCE: EN 13263-1:2005+A1:2009, 3.27] 3.16 spot sample sample taken within a short period of time and at a fixed point from within a larger quantity, relating to the intended tests. It can be obtained by combining one or more immediately consecutive increments [SOURCE: EN 196-7:2007, 3.6] SIST EN 16622:2016
EN 16622:2015 (E) 9 3.17 test technical operation that consists of the determination of a characteristic of a product according to a specified procedure [SOURCE: EN 13263-1:2005+A1:2009, 3.29] 3.18 test cement cement used for evaluation of the activity index of SCF 3.19 testing laboratory laboratory which measures, examines, tests, calibrates or otherwise determines the characteristics or performance of materials or products [SOURCE: EN 13263-1:2005+A1:2009, 3.31] 3.20 test method specified technical procedure for performing a test 3.21 type II addition pozzolanic or latent hydraulic addition [SOURCE: EN 206:2013, 3.1.2.3] 3.22 works´ quality manual document that provides information on the production control which is applied by a manufacturer at a particular production plant to ensure conformity of the SCF with the requirements of this European Standard 4 Health, hygiene and environment 4.1 Release of dangerous substances National regulations on dangerous substances may require verification and declaration on release, and sometimes content, when construction products covered by this standard are placed on those markets. In the absence of European harmonized test methods, verification and declaration on release/content should be done taking into account national provisions in the place of use. NOTE An informative database covering European and national provisions on dangerous substances is available at the Construction website on EUROPA accessed through: http://ec.europa.eu/growth/tools-databases/cp-ds/index_en.htm. 4.2 Emission of radioactivity SCF used in products shall not release any radioactivity in excess of the maximum permitted levels specified in a relevant European Standard for the material or permitted in the national regulations of the member state of destination”. NOTE See ZA.1 in Annex ZA. SIST EN 16622:2016
EN 16622:2015 (E) 10 5 Product characteristics 5.1 General The chemical and physical requirements in 5.2 and 5.3 are specified as characteristic values. Compliance with a specified characteristic value is assessed by means of a statistical control procedure as described in Clause 8. The test methods prescribed in this European Standard are reference methods. In factory production control other methods may be used provided they give results equivalent to those obtained with the reference method. In case of dispute, only the reference method shall be used. 5.2 Chemical requirements 5.2.1 Silicon dioxide The content of silicon dioxide, SiO2, as determined by the method described as reference method in EN 196-2 shall not be less than 70 % by mass and shall be declared. NOTE In the 2013 edition of EN 196–2, the reference method is described in 4.5.3. 5.2.2 Elemental silicon The content of elemental silicon, determined according to ISO 9286, shall not be greater than 0,5 % by mass. 5.2.3 Total calcium oxide The total calcium oxide content, as determined by the reference method described in EN 196-2, shall be in the range of 10 % to 20 % by mass. 5.2.4 Free calcium oxide The content of free calcium oxide, free CaO, as determined by the method described in EN 451-1, shall not be greater than 1,0 % by mass. 5.2.5 Sulfate The sulfate content, as determined by the method described in EN 196-2 and expressed as SO3, shall not be greater than 2,0 % by mass. 5.2.6 Total content of alkalis The total content of alkalis determined by the method described in EN 196-2 and calculated as “Na2O equivalent” shall be declared. NOTE Different national provisions adopt different principles but in general only a small proportion of alkalis in the components of the concrete including silica-calcium fume are considered to contribute to alkali silica reaction, see CEN/TR 16349. Normally silica fumes are considered to reduce the risk of alkali aggregate reactions, see 5.3 in CEN/TR 16349:2012. 5.2.7 Chloride The content of chloride, calculated as Cl– and determined in accordance with the method described in EN 196-2, shall not be greater than 0,30 % by mass. If the Cl– content is above 0,10 % by mass, the upper limit for its characteristic value shall be declared by the manufacturer. SIST EN 16622:2016
EN 16622:2015 (E) 11 5.2.8 Loss on ignition The loss on ignition, as determined in accordance with the method described in EN 196-2, but using an ignition time of 1 h, shall not be greater than 6,5 % by mass. NOTE The loss on ignition is dominated by free carbon. There is also some carbonate coming from the unburnt limestone used in the process. 5.3 Physical requirements 5.3.1 Specific surface The specific surface, as determined by nitrogen adsorption according to the method given in ISO 9277, shall not be less than 12 m2/g, and shall be declared. 5.3.2 Activity index The activity index is determined as the ratio (in percent) of the compressive strength of standard mortar bars, prepared with 90 % test cement plus 10 % SCF per mass of total binder, to the compressive strength of standard mortar bars prepared with 100 % test cement, when tested at the same age. The test cement shall be a selected brand of Portland cement of type CEM I, strength class 42,5 N or higher, conforming to EN 197-1 to be used for carrying out the tests needed to evaluate conformity to the requirement of 5.3.2 in this European Standard. Test cement is selected by the SCF manufacturer and is further characterized by its fineness and contents of tricalcium aluminate and alkalis as follows: — fineness: 300 m2/kg to 400 m2/kg when determined in accordance with EN 196-6; — tricalcium aluminate: 8 % to 12 % when determined in accordance with EN 196-2; — Alkalis (Na2O eqv): 0,6 % to 1,2 % when determined in accordance with EN 196-2. Preparation of standard mortar bars and determination of the compressive strength shall be carried out in accordance with the method described in EN 196-1. The mortar containing SCF shall be mixed with an amount of superplasticizer (conforming to EN 934-2) so that the mortar has a consistency equivalent to the reference mortar when tested by the flow table method given in EN 413-2. The activity index shall be at least 95 % when tested at a mortar age of 28 days. NOTE 1 The result of the activity index tests gives no direct information on the strength contribution of SCF in concrete, nor is the use of SCF limited to mixing ratio used in these tests. NOTE 2 In the 2005 edition of EN 413–2, the flow table method is described in 5.3. 5.3.3 Particle density The density shall be determined in accordance with EN 1097-7 and shall be declared. 6 Assessment and verification of constancy of performance – AVCP 6.1 General The compliance of silica-calcium fume for concrete (SCF) with the requirements of this European Standard and with the performances declared by the manufacturer in the Declaration of Performance (DoP) shall be demonstrated by: SIST EN 16622:2016
EN 16622:2015 (E) 12 — determination of the product type; — factory production control by the manufacturer, including product assessment. The manufacturer shall always retain the overall control and shall have the necessary means to take responsibility for the conformity of the product with its declared performances. NOTE The assignment of tasks to the notified body(ies) and the manufacturer is shown in Annex ZA, Table ZA.3. 6.2 Type testing 6.2.1 General All performances related to characteristics included in this European Standard shall be determined when the manufacturer intends to declare the respective performances. Assessment previously performed in accordance with the provisions of this European Standard, may be taken into account provided that they were made to the same or a more rigorous test method, under the same AVCP system on the same product or products of similar design, construction and functionality, such that the results are applicable to the product in question. NOTE 1 Same AVCP system means testing by an independent third party, under the responsibility of a notified product certification body. For the purposes of assessment, the manufacturer's products may be grouped into families, where it is considered that the results for one or more characteristics from any one product within the family are representative for that same characteristics for all products within that same family. NOTE 2 Products may be grouped in different families for different characteristics. Reference to the assessment method standards should be made to allow the selection of a suitable representative sample. In addition, the determination of the product type shall be performed for all characteristics included in the standard for which the manufacturer declares the performance — at the beginning of the production of a new or modified SCF (unless a member of the same product range); or — at the beginning of a new or modified method of production (where this may affect the stated properties); or — they shall be repeated for the appropriate characteristic(s), whenever a change occurs in the SCF design, in the raw material or in the supplier of the components, or in the method of production (subject to the definition of a family), which would affect significantly one or more of the characteristics. Where components are used whose characteristics have already been determined, by the component manufacturer, on the basis of assessment methods of other product standards, these characteristics need not be re-assessed. The specifications of these components shall be documented. Products bearing regulatory marking in accordance with appropriate harmonized European specifications may be presumed to have the performances declared in the DoP, although this does not replace the responsibility on the SCF manufacturer to ensure that the SCF as a whole is correctly manufactured and its component products have the declared performance values. SIST EN 16622:2016
EN 16622:2015 (E) 13 6.2.2 Test samples, testing and compliance criteria The number of samples of SCF to be tested/assessed shall be in accordance with Table 1. Table 1 — Number of samples to be tested and compliance criteria Characteristic Requirement Assessment method a b Minimum No.
of samples Compliance criteria Silicon dioxide 5.2.1 5.2.1 1 5.2.1 Elemental silicon 5.2.2 5.2.2 1 5.2.2 Total calcium oxide 5.2.3 5.2.3 1 5.2.3 Free calcium oxide 5.2.4 5.2.4 1 5.2.4 Sulfate 5.2.5 5.2.5 1 5.2.5 Total alkalis 5.2.6 5.2.6 1
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