Aggregates for concrete

This European Standard specifies the properties of aggregates and filler aggregates obtained by processing natural, manufactured or recycled materials and mixtures of these aggregates for use in concrete in conformity with EN 206-1 and concrete used in roads and other pavements and for use in precast concrete products.
It covers aggregates having an oven dried particle density greater than 2,0 Mg/m3 (2000 Kg/m3). It also covers recycled aggregate with particle densities greater than 1,50 Mg/m3 (1 500 kg/m3) with appropriate caveats and recycled fine aggregate with appropriate caveats.
A list of the source materials that have been considered and indicating those which are within the scope of this standard is given in Annex A (normative).
Requirements are given in EN 16236.
It incorporates a general requirement that aggregates 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 regulations of the member state of destination.
The tables in this standard include categories which are common across the four main aggregate standards: EN 12620, EN 13043, EN 13139 and EN 13242. Not all of these categories are appropriate for aggregates for use in concrete.
Categories, notes, comments etc, which are grey shaded, should not be used in concrete.
Aggregates used in construction should comply with all the requirements of the relevant European Standards. These standards include comprehensive and specific requirements for natural aggregates, iron and steel making slag and recycled aggregates, dealing with, for example, the stability of certain basalts, the expansion of certain slags and the constitution of recycled aggregates.
For materials from some other secondary sources however, work is ongoing and the requirements are incomplete. In the meantime, such materials, when placed on the market as aggregates, should conform fully to this standard but may also be required to conform to specific relevant additional requirements at the place of use. Additional characteristics and requirements may be specified on a case by case basis depending upon experience of use of the product, and defined in specific contractual documents.
NOTE    Requirements for lightweight aggregates are specified in EN 13055-1.
Requirements for the declaration of the potential of aggregates to release regulated dangerous substances are currently under development. Until such time as these are finalised, attention should be paid to requirements at the place of use.

Gesteinskörnungen für Beton

Diese Europäische Norm legt die Eigenschaften von Gesteinskörnungen und Füllern fest, die durch Aufbereitung natürlicher, industriell hergestellter oder rezyklierter Materialien und Mischungen daraus für die Verwendung in Beton nach EN 206 1 und in Beton zur Verwendung in Straßen, anderen Deckschichten und in Betonfertigteilen gewonnen werden.
Sie deckt Gesteinskörnungen mit einer Kornrohdichte nach Trocknung im Wärmeschrank größer als 2,00 Mg/m3 (2 000 kg/m3) ab. Die Norm deckt ebenfalls rezyklierte Gesteinskörnungen mit einer Rohdichte größer als 1,50 Mg/m3 (1 500 kg/m3) und rezyklierte feine Gesteinskörnungen ab, jeweils mit den entsprechenden Einschränkungen.
Anhang A (normativ) enthält ein Verzeichnis der berücksichtigten Ausgangsmaterialien, die im Anwen-dungsbereich dieser Europäischen Norm liegen.
Anforderungen an die Bewertung der Konformität von Produkten nach dieser Europäischen Norm sind in EN 16236 enthalten.
Die Norm enthält die allgemeine Anforderung, dass die Freisetzung gefährlicher Stoffe aus Gesteinskörnungen die maximal zulässigen Grenzwerte, die in der einschlägigen Europäischen Norm für das Material festgelegt sind bzw. die nach den nationalen Bestimmungen des Bestimmungsmitgliedstaats zulässig sind, nicht übersteigen darf.
Die Tabellen in dieser Norm enthalten Kategorien, die in allen vier Hauptnormen für Gesteinskörnungen festgelegt sind: EN 12620, EN 13043, EN 13139 und EN 13242. Nicht alle Kategorien sind für Gesteinskörnungen zur Verwendung in Beton geeignet.
Die grau hinterlegten Kategorien, Anmerkungen, Kommentare, usw. sollten nicht für Gesteinskörnungen in Beton verwendet werden.
Gesteinskörnungen im Bauwesen sollten mit allen einschlägigen Anforderungen der jeweiligen Europäischen Normen für Gesteinskörnungen übereinstimmen. Diese Normen enthalten umfassende und spezifische Anforderungen an natürliche Gesteinskörnungen, Hochofenstück- und Stahlwerksschlacken und rezyklierte Gesteinskörnungen, die sich zum Beispiel mit der Raumbeständigkeit bestimmter Basalte, der Volumenzunahme bestimmter Schlacken und der Zusammensetzung von rezyklierten Gesteinskörnungen befassen.
Die Arbeiten an Festlegungen für Materialien aus weiteren sekundären Quellen sind jedoch noch nicht abgeschlossen und die Anforderungen sind unvollständig. In der Zwischenzeit sollten solche Materialien, sofern sie als Gesteinskörnungen in Verkehr gebracht werden, den Anforderungen dieser Norm voll entsprechen. Unter Umständen müssen sie aber auch zusätzliche spezifische Anforderungen, die am Verwendungsort gelten, erfüllen. Abhängig von den Erfahrungen mit der Anwendung des Produkts dürfen im Einzelfall zusätzliche Eigenschaften und Anforderungen festgelegt werden und in den spezifischen Vertragsunterlagen definiert werden.
ANMERKUNG    Anforderungen an leichte Gesteinskörnungen sind in prEN 13055 festgelegt.
Zurzeit werden Anforderungen an die Angabe des Potenzials von Gesteinskörnungen, gesetzlich geregelte gefährliche Stoffe freizusetzen, erarbeitet. Bis zur Fertigstellung dieser Anforderungen sollten die Anforderungen am Verwendungsort beachtet werden.

Granulats pour béton

La présente Norme européenne spécifie les caractéristiques des granulats, y compris celles des fillers, élaborés à partir de matériaux naturels, artificiels ou recyclés et des mélanges de ces granulats destinés à être utilisés dans la fabrication :
-   des bétons selon les prescriptions de l'EN 206-1
-   des bétons utilisés dans la construction des routes et chaussées,
-   des produits préfabriqués en béton.
Elle s'applique aux granulats dont la masse volumique réelle des particules séchées à l’étuve est supérieure à 2,00 Mg/m3 (2 000 kg/m3). Elle s'applique également aux granulats recyclés dont la masse volumique réelle est supérieure à 1,50 Mg/m3 (1 500 kg/m3), avec les mises en garde appropriées, ainsi qu’au sable recyclé, avec les mises en garde appropriées.
Une liste des origines des matériaux qui ont été prises en considération et relèvent du domaine d'application de la présente norme est donnée à l'Annexe A (normative).
Les exigences relatives à l’évaluation de la conformité sont spécifiées dans l’EN 16236.
La présente norme intègre une exigence générale stipulant que les granulats ne doivent dégager aucune substance dangereuse dont les valeurs d'émission dépassent les niveaux maximaux admissibles spécifiés dans une Norme européenne pertinente pour le matériau ou dans la réglementation nationale de l'Etat membre de destination.
Les tableaux de la présente norme contiennent des catégories qui sont communes aux quatre principales normes relatives aux granulats : EN 12620, EN 13043, EN 13139 et EN 13242. Ces catégories ne sont pas toutes appropriées pour un usage des granulats dans les bétons.
Les catégories, notes, commentaires, etc. qui sont grisés ne devraient pas être utilisées pour les applications dans les bétons.
Les granulats utilisés dans la construction doivent respecter toutes les exigences des Normes européennes concernées. Ces dernières contiennent les exigences générales et particulières relatives aux granulats naturels, au laitier de haut fourneau et d'aciérie et aux granulats recyclés, et traitent par exemple de la stabilité de certains basaltes, de l'expansion de certains laitiers et de la composition des granulats recyclés.
Cependant, pour les matériaux provenant d’autres sources secondaires, les travaux sont en cours et les exigences sont incomplètes. En attendant, il convient que ces matériaux, lorsqu'ils sont mis sur le marché en tant que granulats, respectent pleinement la présente norme, mais ils peuvent aussi devoir se conformer à des exigences complémentaires spécifiques pertinentes sur le lieu d'utilisation. Des caractéristiques et des exigences complémentaires peuvent être spécifiées au cas par cas, en fonction de l'expérience acquise à l'usage du produit, et définies dans des documents contractuels spécifiques.
NOTE   Les caractéristiques des granulats légers sont spécifiées dans le prEN 13055.
Les exigences relatives à la déclaration du potentiel des granulats à relarguer des substances dangereuses réglementées sont actuellement en cours d'élaboration. Tant qu'elles ne sont pas finalisées, il convient de tenir compte des exigences en vigueur sur le lieu d'utilisation.

Agregati za beton

Ta evropski standard določa lastnosti agregatov in kamene moke, pridobljenih z obdelavo naravnih, umetnih ali recikliranih materialov in zmesi teh agregatov, za uporabo v betonu v skladu s standardom EN 206-1 in betonu za ceste in druga vozišča ter za uporabo pri montažnih betonskih izdelkih. Zajema agregate s prostorninsko maso sušenih zrn, večjo od 2,0 mg/m3 (2000 kg/m3). Prav tako zajema reciklirane agregate s prostorninsko maso zrn, večjo od 1,50 mg/m3 (1500 kg/m3), v skladu z ustreznimi pogoji in reciklirane fine agregate v skladu z ustreznimi pogoji. Seznam obravnavanih izvornih materialov, ki določa materiale, vključene v predmet tega standarda, je naveden v dodatku A (normativni). Zahteve za vrednotenje skladnosti izdelkov s tem evropskim standardom so navedene v standardu EN 16236.
Vključuje splošno zahtevo o tem, da agregati ne smejo oddajati nobenih nevarnih snovi v količinah, ki so večje od največjih dovoljenih količin v ustreznem evropskem standardu za materiale ali v nacionalni zakonodaji države članice. Razpredelnice v tem standardu vključujejo kategorije, ki so skupne vsem štirim glavnim standardom za agregate: EN 12620, EN 13043, EN 13139 in EN 13242. Nekatere od teh kategorij niso primerne za agregate za uporabo v betonu. Kategorije, opombe, komentarji itd. v sivi barvi se ne smejo uporabljati v betonu.
Agregati, ki se uporabljajo pri konstrukcijah, morajo izpolnjevati zahteve ustreznih evropskih standardov. Ti standardi vključujejo celovite in posebne zahteve za naravne agregate, žlindro, nastalo pri pridobivanju železa in jekla, in reciklirane agregate ter obravnavajo na primer stabilnost nekaterih bazaltov, raztezek nekaterih vrst žlindre in sestavo recikliranih agregatov.

General Information

Status
Withdrawn
Publication Date
30-Apr-2013
Withdrawal Date
11-Dec-2013
Current Stage
9960 - Withdrawal effective - Withdrawal
Due Date
12-Dec-2013
Completion Date
12-Dec-2013

RELATIONS

Effective Date
07-Nov-2009
Effective Date
22-Dec-2008

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Agregati za betonGesteinskörnungen für BetonGranulats pour bétonAggregates for concrete91.100.30Beton in betonski izdelkiConcrete and concrete products91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:Ta slovenski standard je istoveten z:EN 12620:2013SIST EN 12620:2013en,fr,de01-julij-2013SIST EN 12620:2013SLOVENSKI

STANDARDSIST EN 12620:2002+A1:20081DGRPHãþD
SIST EN 12620:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12620
May 2013 ICS 91.100.15 Supersedes EN 12620:2002+A1:2008English Version
Aggregates for concrete
Granulats pour béton

Gesteinskörnungen für Beton This European Standard was approved by CEN on 24 August 2011.

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-CENELEC 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-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of 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 United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12620:2013: ESIST EN 12620:2013

EN 12620:2013 (E) 2 Contents Page Foreword ............................................................................................................................................................. 4 1 Scope...................................................................................................................................................... 5 2 Normative references ........................................................................................................................... 5 3 Terms and definitions ........................................................................................................................... 7 4 Geometrical requirements.................................................................................................................... 8 4.1 General ................................................................................................................................................... 8 4.2 Aggregate sizes ..................................................................................................................................... 9 4.3 Grading ................................................................................................................................................ 10 4.3.1 General ................................................................................................................................................. 10 4.3.2 Coarse aggregates .............................................................................................................................. 11 4.3.3 Fine aggregates ................................................................................................................................... 12 4.3.4 All-in aggregates ................................................................................................................................. 12 4.3.5 Special use aggregates and declared grading categories ............................................................. 13 4.3.6 Grading of added filler ........................................................................................................................ 13 4.3.7 Natural graded 0/8 mm aggregates ................................................................................................... 14 4.4 Fines content ....................................................................................................................................... 14 4.5 Fines quality ........................................................................................................................................ 15 4.6 Particle shape of coarse and all-in aggregates  Flakiness index and shape index ................. 17 4.7 Shell content of coarse and all-in aggregates ................................................................................. 18 5 Physical requirements ........................................................................................................................ 18 5.1 General ................................................................................................................................................. 18 5.2 Resistance to fragmentation .............................................................................................................. 19 5.3 Resistance to wear .............................................................................................................................. 20 5.4 Particle density and water absorption .............................................................................................. 20 5.4.1 Particle density .................................................................................................................................... 20 5.4.2 Water absorption ................................................................................................................................. 21 5.5 Bulk density ......................................................................................................................................... 21 5.6 Resistance to polishing for application in surface courses ........................................................... 21 5.7 Resistance to surface abrasion ......................................................................................................... 21 5.8 Resistance to abrasion from studded tyres for application in surface courses .......................... 21 6 Chemical requirements ...................................................................................................................... 22 6.1 General ................................................................................................................................................. 22 6.2 Petrographic description.................................................................................................................... 22 6.3 Classification of the constituents of coarse recycled aggregates ................................................ 22 6.4 Sulfur containing compounds ........................................................................................................... 25 6.4.1 Acid-soluble sulfate ............................................................................................................................ 25 6.4.2 Total sulfur ........................................................................................................................................... 25 6.4.3 Water soluble sulfate content of recycled aggregates ................................................................... 26 6.5 Chlorides .............................................................................................................................................. 26 6.6 Carbonate content for concrete pavement surface courses of fine, and all-in aggregates ........................................................................................................................................... 27 6.7 Other constituents .............................................................................................................................. 27 6.7.1 Constituents which alter the rate of setting and hardening of concrete ...................................... 27 6.7.2 Constituents which affect the volume stability of air-cooled blast furnace slag ......................... 28 7 Durability .............................................................................................................................................. 28 7.1 General ................................................................................................................................................. 28 7.2 Magnesium sulfate soundness of coarse aggregates .................................................................... 28 7.3 Freeze – thaw resistance .................................................................................................................... 29 SIST EN 12620:2013

EN 12620:2013 (E) 3 7.3.1 Water absorption as a screening test for freeze-thaw resistance ................................................. 29 7.3.2 Resistance to freezing and thawing .................................................................................................. 29 7.3.3 Resistance to freezing and thawing in the presence of salt (extreme conditions) ...................... 30 7.4 Volume stability - drying shrinkage .................................................................................................. 31 7.5 Alkali-silica reactivity.......................................................................................................................... 31 8 Evaluation of conformity .................................................................................................................... 31 9 Designation .......................................................................................................................................... 31 9.1 Designation and description .............................................................................................................. 31 9.2 Additional information for the description of an aggregate ........................................................... 32 10 Marking and labelling ......................................................................................................................... 32 Annex A (normative)

Source materials considered in the development of EN 12620 and their status in respect of the scope of the standard ....................................................................... 33 Annex B (informative)

Guidance on the description of coarseness/fineness of fine aggregates .................................................................................................................................... 36 Annex C (normative)

Reduced grading tolerances on producer’s declared typical grading for natural graded 0/8 mm aggregates .............................................................................................. 37 Annex D (informative)

Guidance on the effects of some chemical constituents of aggregates on the durability of concrete in which they are incorporated .................................... 38 D.1 Chlorides .............................................................................................................................................. 38 D.1.1 Chlorides in natural aggregates ........................................................................................................ 38 D.1.2 Chlorides in recycled aggregates ..................................................................................................... 38 D.2 Sulfates ................................................................................................................................................ 38 D.3 Alkali-silica reaction ........................................................................................................................... 39 D.3.1 Alkali-silica reaction with natural aggregates .................................................................................. 39 D.3.2 Alkali-silica reaction with recycled aggregates (including manufactured glass) ........................ 39 D.4 Constituents affecting the surface finish of concrete ..................................................................... 39 D.5 Constituents affecting the setting and hardening of concrete ...................................................... 40 D.6 Constituents of air-cooled blastfurnace slag ................................................................................... 40 Annex ZA (informative)

Clauses of this European Standard addressing the provisions of the EU Construction Products Directive .......................................................................................... 41 ZA.1 Scope and relevant characteristics ................................................................................................... 41 ZA.2 Procedures for attestation of conformity of aggregates and fillers .............................................. 44 ZA.2.1 System(s) of attestation of conformity ............................................................................................. 44 ZA.2.2 EC Certificate Declaration of conformity .......................................................................................... 46 ZA.3 CE marking and labelling ................................................................................................................... 48 Bibliography ..................................................................................................................................................... 54

SIST EN 12620:2013

EN 12620:2013 (E) 4 Foreword This document (EN 12620:2013) has been prepared by Technical Committee CEN/TC 154 “Aggregates”, the secretariat of which is held by BSI. 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 November 2013, and conflicting national standards shall be withdrawn at the latest by February 2015. 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 supersedes EN 12620:2002+A1:2008. Requirements for other end uses of aggregates are specified in the following European Standards:  EN 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked areas;  EN 13055, Lightweight aggregates;  EN 13139, Aggregates for mortar;  EN 13242, Aggregates for unbound and hydraulically bound materials for use in civil engineering work and road construction;  EN 13383-1, Armourstone — Part 1: Specification;  EN 13450, Aggregates for railway ballast. Requirements for evaluation of conformity are specified in EN 16236. According to the CEN/CENELEC Internal Regulations, the national standards organisations 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 12620:2013

EN 12620:2013 (E) 5 1 Scope This European Standard specifies the properties of aggregates and filler aggregates obtained by processing natural, manufactured or recycled materials and mixtures of these aggregates for use in concrete. It covers aggregates having an oven dried particle density greater than 2,00 Mg/m3 (2 000 kg/m3) for all concrete, including concrete in conformity with EN 206-1 and concrete used in roads and other pavements and for use in precast concrete products. It also covers recycled aggregate with particle densities between 1,50 Mg/m3 (1 500 kg/m3) and 2,00 Mg/m3 (2 000 kg/m3) with appropriate caveats and recycled fine aggregate with appropriate caveats. A list of the source materials that have been considered and indicating those which are within the scope of this standard is given in Annex A (normative). Requirements for the evaluation of conformity of the products to this European Standard are given in EN 16236. It incorporates a general requirement that aggregates 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 regulations of the member state of destination. The tables in this standard include categories which are common across the four main aggregate standards: EN 12620, EN 13043, EN 13139 and EN 13242. Not all of these categories are appropriate for aggregates for use in concrete. Categories, notes, comments etc, which are grey shaded, should not be used in concrete. Aggregates used in construction should comply with all the requirements of the relevant European Standards. These standards include comprehensive and specific requirements for natural aggregates, iron and steel making slag and recycled aggregates, dealing with, for example, the stability of certain basalts, the expansion of certain slags and the constitution of recycled aggregates. For materials from some other secondary sources, however, work is ongoing and the requirements are incomplete. In the meantime, such materials, when placed on the market as aggregates, should conform fully to this standard but may also be required to conform to specific relevant additional requirements at the place of use. Additional characteristics and requirements may be specified on a case by case basis depending upon experience of use of the product, and defined in specific contractual documents.

NOTE Requirements for lightweight aggregates are specified in prEN 13055. Requirements for the declaration of the potential of aggregates to release regulated dangerous substances are currently under development. Until such time as these are finalised, attention should be paid to requirements at the place of use. 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 196-2, Methods of testing cement — Part 2: Chemical analysis of cement EN 932-3, Tests for general properties of aggregates — Part 3: Procedure and terminology for simplified petrographic description SIST EN 12620:2013

EN 12620:2013 (E) 6 EN 933-1, Tests for geometrical properties of aggregates — Part 1: Determination of particle size distribution — Sieving method EN 933-3, Tests for geometrical properties of aggregates — Part 3: Determination of particle shape — Flakiness index EN 933-4, Tests for geometrical properties of aggregates — Part 4: Determination of particle shape — Shape index EN 933-7, Tests for geometrical properties of aggregates — Part 7: Determination of shell content — Percentage of shells in coarse aggregates EN 933-8, Tests for geometrical properties of aggregates — Part 8: Assessment of fines — Sand equivalent test EN 933-9, Tests for geometrical properties of aggregates — Part 9: Assessment of fines — Methylene blue test EN 933-10, Tests for geometrical properties of aggregates — Part 10: Assessment of fines — Grading of filler aggregates (air jet sieving) EN 933-11, Tests for geometrical properties of aggregates — Part 11: Classification test for the constituents of coarse recycled aggregate EN 1097-1, Tests for mechanical and physical properties of aggregates — Part 1: Determination of the resistance to wear (micro-Deval) EN 1097-2, Tests for mechanical and physical properties of aggregates — Part 2: Methods for the determination of resistance to fragmentation EN 1097-3, Tests for mechanical and physical properties of aggregates — Part 3: Determination of loose bulk density and voids EN 1097-6, Tests for mechanical and physical properties of aggregates — Part 6: Determination of particle density and water absorption EN 1097-8, Tests for mechanical and physical properties of aggregates — Part 8: Determination of the polished stone value EN 1097-9, Tests for mechanical and physical properties of aggregates — Part 9: Determination of the resistance to wear by abrasion from studded tyres — Nordic test EN 1367-1, Tests for thermal and weathering properties of aggregates — Part 1: Determination of resistance to freezing and thawing EN 1367-2, Tests for thermal and weathering properties of aggregates — Part 2: Magnesium sulfate test EN 1367-4, Tests for thermal and weathering properties of aggregates — Part 4: Determination of drying shrinkage EN 1367-6, Tests for thermal and weathering properties of aggregates — Part 6: Determination of resistance to freezing and thawing in the presence of salt (NaCl). EN 1744-1:2009, Tests for chemical properties of aggregates — Part 1: Chemical analysis EN 1744-5, Tests for chemical properties of aggregates — Part 5: Determination of acid soluble chloride salts SIST EN 12620:2013

EN 12620:2013 (E) 7 EN 1744-6, Tests for chemical properties of aggregates — Part 6: Determination of the influence of recycled aggregate extract on the initial setting time of cement EN 16236:2013, Evaluation of conformity of aggregates — Initial Type Testing and Factory Production Control ISO 565, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 aggregate granular material of natural, manufactured or recycled origin used in construction 3.2 natural aggregate aggregate from mineral sources which has been subjected to nothing more than mechanical processing 3.3 manufactured aggregate aggregate of mineral origin resulting from an industrial process involving thermal or other modification 3.4 recycled aggregate aggregate resulting from the processing of inorganic or mineral material previously used in construction 3.5 category level of a property of an aggregate expressed as a range of values or a limiting value Note 1 to entry: There is no relationship between the categories of different properties. 3.6 aggregate size designation of aggregate in terms of lower (d) and upper (D) sieve sizes expressed as d/D Note 1 to entry: This designation accepts the presence of some particles which are retained on the upper sieve (oversize) and some which pass the lower sieve (undersize). 3.7 grading particle size distribution expressed as the percentages by mass passing a specified set of sieves Note 1 to entry: In this standard grading categories are used and expressed as GnX/Y in which: n: = type of grading defined below C = coarse CA = coarse for asphalt only G = grit (D<4 and d>1) SIST EN 12620:2013

EN 12620:2013 (E) 8 F= fine NG = natural graded A = all-in X: lower limit passing D

Y: upper limit passing d 3.8 fines particle size fraction of an aggregate that passes the 0,063 mm sieve 3.9 coarse aggregate designation given to the larger aggregate sizes with D greater than 4 mm and d greater than or equal to 1 mm Note 1 to entry: Aggregates that do not fit the definitions for fine or coarse (like 1/3, 1/4 and 2/4) are treated as coarse aggregate. 3.10 fine aggregate designation given to the smaller aggregate sizes with D less than or equal to 4 mm and d = 0 Note 1 to entry: Fine aggregate can be produced from natural disintegration of rock or gravel and/or by the crushing of rock or gravel or processing of manufactured aggregates. 3.11 all-in aggregate aggregate consisting of a mixture of coarse and fine aggregates with D greater than 4 mm and d = 0 Note 1 to entry: It can be produced without separating into coarse and fine fractions or it can be produced by combining coarse and fine aggregates. 3.12 filler aggregate aggregate, most of which passes a 0,063 mm sieve, which can be added to construction materials to provide certain properties

3.13 added filler filler aggregate of mineral origin, which has been produced separately 4 Geometrical requirements

4.1 General The necessity for testing and declaring all properties specified in this clause shall be limited according to the particular application at end use or origin of the aggregate. When required, the aggregates shall be tested as specified in Clause 4 to determine the relevant geometrical properties. When the value of a property is required but not defined by specified limits the value should be declared as an XXDeclared category, e.g. a value of, say, 55 for the flakiness index corresponds to FI55 (Declared Value). NOTE 1 When a property is not required, a “No requirement” category can be used. SIST EN 12620:2013

EN 12620:2013 (E) 9 NOTE 2 Guidance on selection of appropriate categories for specific applications can be found in national provisions in the place of use of the aggregate. NOTE 3 Where conformity with a category is based on a value of a property being less than or equal to a given value, conformity with a more severe category (lower value) automatically confers conformity with all less severe categories (higher values). Similarly for categories based on the value of a property being greater than or equal to a given value, conformity with a more severe (higher value) automatically confers conformity with all less severe categories (lower values). The tables in this standard include categories which are common across the four main aggregate standards: EN 12620, EN 13043, EN 13139 and EN 13242.

Categories, notes, comments etc, which are grey shaded, should not be used in concrete. 4.2 Aggregate sizes All aggregates shall be described in terms of aggregate sizes using the designations d/D, and shall conform to the grading requirements specified in 4.3, except for aggregates added as fillers which shall be specified as filler aggregate. Aggregate sizes shall be described by the pair of sieve sizes in millimetres selected from the basic set, or the basic set plus set 1, or the basic set plus set 2 in Table 1 with d as the lower limit designation and D as the upper limit designation sieve between which most of the particle size distribution lies, (e.g. 0/4mm, 0/2mm, 2/4mm etc.). A combination of sizes from set 1 and set 2 is not permissible. Aggregate sizes shall have D/d not less than 1,4. SIST EN 12620:2013

EN 12620:2013 (E) 10

Table 1 — Sieve sizes for specifying aggregate sizes Basic set Basic set plus set 1 Basic set plus set 2 mm mm mm 0 0 0 1 1 1 2 2 2 4 4 4 – 5,6 (5) – – – 6,3 (6) 8 8 8 – – 10 – 11,2 (11) – – – 12,5 (12) – – 14 16 16 16 – – 20 – 22,4 (22) – 31,5 (32) 31,5 (32) 31,5 (32) – – 40 – 45 – – 56 – 63 63 63 – – 80 – 90 – NOTE Rounded sizes shown in parentheses can be used as simplified descriptions of aggregate sizes.

4.3 Grading 4.3.1 General The grading of the aggregate, when determined in accordance with EN 933-1, shall conform to the requirements of 4.3.2 to 4.3.5 as appropriate to its aggregate size d/D. Aggregates may comprise single sizes, all-in aggregates or combinations of two or more than two sizes. Aggregates supplied as a mixture of different sizes or types should be uniformly blended. When aggregates of significantly different density are blended, caution is necessary to avoid segregation. When assessing aggregates within a system of factory production control, at least 90% of gradings, taken on different batches, within a maximum period of six months, shall fall within the limits specified in Tables 2 to 5 for tolerances on manufacturer declared typical gradings. Size designations and grading categories are essentially categories of convenience and different sizes and grading categories may be used by agreement between supplier and purchaser. Where the specification requires the use of sieves which are a fraction or a multiple of the upper sieve size (eg D/2 or D/1,4 or 1,4D; 2D) the sieve chosen shall be the next nearest from basic set plus set 1 or basic set plus set 2. When a sieve size of the ISO 565 R20 series is closer to the calculated d/2, D/1,4 D/2 size, the manufacturer may choose to use this R20 size; SIST EN 12620:2013

EN 12620:2013 (E) 11 Table 2 — General grading requirements Aggregate Size mm Percentage passing by mass

Category G
2D a 1,4D
D b
d d/2 Coarse
D>4
d≥1
100

100 90 to 99 0 to 10 0 to 2 GC90/10 100 98 to 100 90 to 99 0 to 15 0 to 5 GC90/15 100 98 to 100 85 to 99 c 0 to 15 0 to 5 GC85/15 100 98 to 100 85 to 99 c 0 to 20 0 to 5 GC85/20 100 98 to 100 80 to 99 0 to 20 0 to 5 GC80/20 100 98 to 100 85 to 99 c 0 to 15 0 to 2 GCA85/15 d≥1 a≤4 100 95 to 100 85 to 99 0 to 15 -- GG85/15 100 98 to 100 85 to 99 0 to 20 0 to 5 GG85/20 Fine a≤4 d=0 100 95 to 100 85 to 99 - - GF85 All-in

D>4 d=0 100 98 to 100 90 to 99 - - GA90

100 98 to 100 85 to 99 - - GA85 100 98 to 100 80 to 99 - - GA80 100 - 75 to 99 - - GA75 a For aggregate sizes where D is greater than 63 mm (e.g. 80 mm and 90 mm) only the oversize requirements related to the 1,4 D sieve apply since there is no ISO 565/R20 series sieve above 125 mm. b If the percentage retained on D is < 1 % by mass the producer shall document and declare the typical

grading including the sieves D, d, d/2 and sieves in the basic set plus set 1 or basic set plus set 2

intermediate between d and D. c For single size coarse aggregates d/D, where D/d<2, of the categories GC85/15, GC85/20 a

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