SIST EN 13263-1:2005
(Main)Silica fume for concrete - Part 1: Definitions, requirements and conformity criteria
Silica fume for concrete - Part 1: Definitions, requirements and conformity criteria
This European Standard applies to the silica fume which is a by-product of the smelting process used to produce silicon metal and ferro-silicon alloys.
This part of EN 13263 gives requirements for chemical and physical properties for silica fume to be used as a type II addition in concrete conforming to EN 206-1, or in mortars, grouts and other mixes. This part of EN 13263 also states conformity criteria and related rules.
EN 13263 does not give rules for the use of silica fume in concrete. Some rules are given in EN 206 1.
NOTE 1 Supplementary rules related to the use of silica fume in concrete may be given in non conflicting national standards for concrete.
NOTE 2 EN 206-1 (5.2.5.1 in the 2000 edition) provides conditions for national acceptance of silica fumes coming from calcium silicon alloys production or other silica fumes, not conforming completely to EN 13263, as type II additions for use in concrete.
Silikastaub für Beton - Teil 1: Definitionen, Anforderungen und Konformitätskriterien
Anwendungsbereich
Diese Europäische Norm gilt für Silikastaub, der ein Nebenprodukt des Schmelzprozesses zur Herstellung von Siliciummetall und
Dieser Teil der EN 13263 enthält Anforderungen an chemische und physikalische Eigenschaften von Silikastaub, der als Typ II-Zusatzstoff für Beton nach EN 206-1 oder für Mörtel, Einpressmörtel und andere Mischungen verwendet wird. Dieser Teil der EN 13263 enthält auch Konformitätskriterien und betreffende Regeln.
EN 13263 1 enthält keine Regeln zur Verwendung von Silikastaub in Beton. Einige Regeln sind in EN 206-1 aufgeführt.
ANMERKUNG 1 Zusätzliche Regeln für die Verwendung von Silikastaub in Beton können in nicht entgegenstehenden nationalen Normen für Beton angegeben sein.
ANMERKUNG 2 EN 206-1 (5.2.5.1 in der Ausgabe 2000) enthält die Bedingungen für die nationale Annahme von Silikastaub aus der Herstellung von Calciumsilicium-Legierungen oder anderem Silikastaub, der EN 13263 nicht vollständig entspricht, als Typ II-Zusatzstoff für Beton.
Fumée de silice pour béton - Partie 1: Définitions, exigences et criteres de conformité
La présente Norme européenne concerne la fumée de silice, co-produit du processus de fusion permettant de
produire du silicium métal et des alliages de ferrosilicium.
La présente partie de l?EN 13263 présente les caractéristiques chimiques et physiques exigées pour de la
fumée de silice utilisée en tant que produit d?addition du béton de type II conforme a l?EN 206-1, des mortiers,
des coulis ou d?autres mélanges. La présente partie de l?EN 13263 présente également les criteres de
conformité ainsi que les regles associées.
L?EN 13263 ne présente pas les regles d?utilisation de la fumée de silice dans le béton. Certaines regles sont
présentées dans l?EN 206-1.
NOTE 1 Des normes nationales non conflictuelles relatives au béton peuvent présenter des regles supplémentaires
relatives a l?utilisation de la fumée de silice dans le béton.
NOTE 2 L?EN 206-1 (5.2.5.1 de l?édition 2000) prévoit selon les termes d?un reglement, l?utilisation nationale, en tant
que produit d?addition du béton de type II, des fumées de silice provenant de la fabrication d?alliages de silico-calcium ou
d?autres fumées de silice conformes partiellement a l?EN 13263.
Mikro silika za beton – 1. del: Definicije, zahteve in merila skladnosti
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Silica fume for concrete - Part 1: Definitions, requirements and conformity criteriaMikro silika za beton – 1. del: Definicije, zahteve in merila skladnostiFumée de silice pour béton - Partie 1: Définitions, exigences et criteres de conformitéSilikastaub für Beton - Teil 1: Definitionen, Anforderungen und Konformitätskriterien91.100.30Beton in betonski izdelkiConcrete and concrete productsICS:SIST EN 13263-1:2005enTa slovenski standard je istoveten z:EN 13263-1:200501-september-2005SIST EN 13263-1:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13263-1June 2005ICS 91.100.30English versionSilica fume for concrete - Part 1: Definitions, requirements andconformity criteriaFumée de silice pour béton - Partie 1: Définitions,exigences et critères de conformitéSilikastaub für Beton - Teil 1: Definitionen, Anforderungenund KonformitätskriterienThis European Standard was approved by CEN on 19 May 2005.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© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13263-1:2005: E
EN 13263-1:2005 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Health, hygiene and environment.9 5 Specifications.9 5.1 General.9 5.2 Chemical requirements.10 5.3 Physical requirements.10 6 Packaging, labelling and marking.11 7 Conformity criteria.11 7.1 Autocontrol testing.11 7.2 Conformity criteria for physical and chemical properties and evaluation procedure.12 Annex A (normative)
Release of dangerous substances and emission of radioactivity.16 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive.17 Bibliography.23
EN 13263-1:2005 (E) 3 Foreword This document (EN 13263-1:2005) 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 December 2005, and conflicting national standards shall be withdrawn at the latest by April 2007. 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. EN 13263 consists of the following parts, under the general title Silica fume for concrete: Part 1: Definitions, requirements and conformity criteria; Part 2: Conformity evaluation. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound 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 13263-1:2005 (E) 4 Introduction Silica fume consists of mainly spherical particles of amorphous silicon dioxide smaller than 10–6 m and is highly pozzolanic. It is collected by filters as a by-product of the smelting process to produce silicon metal and ferro-silicon alloys. It can be supplied as collected from the filters (undensified), after treatment to increase its bulk density (densified), or as a slurry. Silica fume from more than one furnace, filter or intermediate storage silo will normally be blended in the production plant. Many years of research and practical experience have demonstrated that silica fume which satisfies the requirements in this Part of this European Standard has highly pozzolanic properties, and may be used to produce concrete with improved properties in both the fresh and hardened states. Silica fume is normally used in combination with a plasticizer and/or superplasticizer.
EN 13263-1:2005 (E) 5 1 Scope This European Standard applies to the silica fume which is a by-product of the smelting process used to produce silicon metal and ferro-silicon alloys. This part of EN 13263 gives requirements for chemical and physical properties for silica fume to be used as a type II addition in concrete conforming to EN 206-1, or in mortars, grouts and other mixes. This part of EN 13263 also states conformity criteria and related rules. EN 13263 does not give rules for the use of silica fume in concrete. Some rules are given in EN 206-1. NOTE 1 Supplementary rules related to the use of silica fume in concrete may be given in non conflicting national standards for concrete. NOTE 2 EN 206-1 (5.2.5.1 in the 2000 edition) provides conditions for national acceptance of silica fumes coming from calcium silicon alloys production or other silica fumes, not conforming completely to EN 13263, as type II additions for use in concrete. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. 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, Methods of testing cement — Part 2: Chemical analysis of cement; EN 196-6, Methods of testing cement — Part 6: Determination of fineness;. EN 196-7:1989, 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 206-1 Concrete — Part 1: Specification, performance, production and conformity; 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 13263-2:2005, Silica fume for concrete — Part 2: Conformity evaluation ISO 9277, Determination of the specific surface area of solids by gas adsorption using the BET method; ISO 9286, Abrasive grains and crude — Chemical analysis of silicon carbide. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 activity index measurement of the effect of silica fume on the compressive strength of mortar
EN 13263-1:2005 (E) 6 3.2 allowable probability of acceptance
CR for a given sampling plan, the allowed probability of acceptance of silica fume with a characteristic value outside the specified characteristic value 3.3 autocontrol continuous statistical quality control of the silica fume based on the testing of samples taken by the manufacturer at point(s) of release from the silica fume production plant 3.4 autocontrol testing continual testing by the manufacturer of silica fume spot samples taken at the point(s) of release from the production plant
3.5 certificate of conformity to EN 13263-1 document issued under the rules of a certain scheme for the evaluation of conformity indicating that adequate confidence is provided that a silica fume is in conformity with this part of EN 13263 3.6 certification procedure by which a third party gives written assurance that a product, process or service conforms to specified requirements [EN 45020:1998] 3.7 certification body impartial body, governmental or non-governmental, possessing the necessary competence and responsibility to carry out conformity certification according to given rules of procedure and management 3.8 certified silica fume silica fume for which a certificate of conformity (see 3.5) has been issued 3.9 characteristic value value having a prescribed probability of not being attained in a hypothetical unlimited test series [ISO 8930: 1987] NOTE Equivalent to "fractile" which is defined in ISO 3534-1:1993. 3.10 conformity mark protected mark applied on the basis of the certificate of conformity (see 3.5) 3.11 control period period of production and dispatch identified for the evaluation of the autocontrol test results 3.12 densified silica fume silica fume that has been treated to increase the bulk density by particle agglomeration, the bulk density typically being above 500 kg/m3
EN 13263-1:2005 (E) 7 3.13 depot bulk silica fume handling facility – not located at the production plant – used for the dispatch of silica fume – whether in bulk or bagged – after transfer or storage where the manufacturer has full responsibility for all aspects of the quality of the silica fume 3.14 existing production plant production plant which is already producing silica fume under the certification scheme
3.15 factory production control permanent internal control of silica fume production exercised by the manufacturer including internal quality control and autocontrol testing NOTE The required activities are stated in 4.1 to 4.3 in EN 13263-2:2005. 3.16 further testing of samples testing according to 4.4 in EN 13263-2:2005 3.17 initial period immediate period after the first issuing of the certificate of conformity for a silica fume (see 5.6.1 in EN 13263-2:2005 for duration) 3.18 intitial type testing testing of the first audit sample according to 5.4 in EN 13263-2:2005 3.19 inspection body impartial body having the organization, staffing, competence and integrity to perform according to specified criteria functions such as assessing, recommending for acceptance and subsequent audit of manufacturers´ quality control operations, and selection and evaluation of products on site or in factories or elsewhere, according to specific criteria 3.20 new production plant production plant which is not already producing silica fume under the certification scheme 3.21 production plant facility used by a manufacturer for the production of silica fume: a) silicon metal or silicon alloy production plant; b) processing plant, for example for the selection, slurrifying, blending or densifying of silica fume. 3.22 quality control part of quality management focused on fulfilling quality requirements [EN ISO 9000:2000] 3.23 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
EN 13263-1:2005 (E) 8 3.24 silica fume very fine particles of amorphous silicon dioxide collected as a by-product of the smelting process used to produce silicon metal and ferro-silicon alloys NOTE 1 Silica fume may be processed, for example by classification, selection, blending, densifying, or slurrifying, or by a combination of these processes, in adequate production plants. Such processed silica fume may consist of silica fumes from different sources, each conforming to the definition given in this subclause.
NOTE 2 Other names used for silica fume are condensed silica fume and microsilica. 3.25 silica fume slurry homogeneous, pH regulated liquid suspension of silica fume in water, typically with a dry content of 50 % by mass, corresponding to about 700 kg of silica fume per m³ of slurry 3.26 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 3.27 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 NOTE Conformity with the specified characteristic values in this part of EN 13263 is verified by the methods in 7.2. 3.28 spot sample sample taken at the same time and from one and the same place, relating to the intended tests. It can be obtained by combining one or more immediately consecutive increments [EN 196-7:1989] 3.29 test technical operation that consists of the determination of a characteristic of a product according to a specified procedure [Adapted from EN 45020:1998] 3.30 test cement 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 5.3.3 in this part of EN 13263 Test cement is selected by the silica fume 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.
EN 13263-1:2005 (E) 9 3.31 testing laboratory laboratory which measures, examines, tests, calibrates or otherwise determines the characteristics or performance of materials or products 3.32 test method specified technical procedure for performing a test [EN 45020:1998] 3.33 type II addition finely divided inorganic, pozzolanic or latent hydraulic material that may be added to concrete in order to improve certain properties or to achieve special properties, see EN 206-1 3.34 undensified silica fume silica fume taken directly from the collection filter, the bulk density typically being in the range 150 kg/m³ to 350 kg/m3 3.35 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 silica fume with the requirements of this part of EN 13263 4 Health, hygiene and environment Concerning release of dangerous substances and emission of radioactivity, see Annex A (normative). Materials used in products shall not release any dangerous substances in excess of the maximum permitted levels specified in a relevant European Standard for the material or permitted in the national regulation of the Member State of destination. 5 Specifications 5.1 General The chemical and physical requirements in 5.2 and 5.3 are specified as characteristic values. Conformity to a specified characteristic value is assessed by means of a statistical control procedure as described in clause 7. The test methods prescribed in this part of EN 13263 are reference methods. In factory production control, see EN 13263-2, 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. The properties in 5.2.1 to 5.3.1 are specified as proportions by mass of dry silica fume. The laboratory samples shall be dried in a ventilated oven at (105 ± 5) °C to constant mass and then cooled in a dry atmosphere.
EN 13263-1:2005 (E) 10 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 85 % by mass. NOTE In the 1994 edition of EN 196-2, the reference method is described in 13.2. 5.2.2 Elemental silicon The content of elemental silicon, Si, determined according to ISO 9286, shall not be greater than 0,4 % by mass. 5.2.3 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. 5.2.4 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. 5.2.5 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 silica fume are considered to contribute to alkali silica reaction, see CEN Report 1901. 5.2.6 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 0,3 % 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. 5.2.7 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 hour, shall not be greater than 4,0 % by mass. 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 15,0 m2/g, nor more than 35,0 m2/g.
EN 13263-1:2005 (E) 11
5.3.2 Dry mass content in slurry The dry mass content shall not deviate from the value declared by the supplier by more than ± 2 % by mass of the slurry when determined by drying a representative sample of at least 5 g of slurry in a well ventilated oven at (105 ± 5) °C to constant mass. Constant mass is considered to be reached when successive weighings at least 1 hour apart during drying at (105 ± 5) °C do not differ by more than 0,2 %. 5.3.3 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 % silica fume per mass of total binder, to the compressive strength of standard mortar bars prepared with 100 % test cement, when tested at the same age. 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 silica fume 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 100 % 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 silica fume in concrete, nor is the use of silica fume limited to mixing ratio used in these
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