SIST EN 13242:2003
(Main)Aggregates for unbound and hydraulically bound materials for use in civil engineering work and road construction
Aggregates for unbound and hydraulically bound materials for use in civil engineering work and road construction
This European Standard specifies the properties of aggregates obtained by processing natural or manufactured or recycled materials for hydraulically bound and unbound materials for civil engineering work and road construction.
It provides for the evaluation of conformity of the products to this European Standard.
NOTE 1 The requirements in this European Standard are based upon experience with aggregate types with an established pattern of use. Care should be taken when considering the use of aggregates from sources with no such pattern of use, e.g., recycled aggregates and aggregates arising from certain industrial by-products. Such aggregates, which should comply with all the requirements of this European Standard, canould have other characteristics not included in Mandate M 125 that do not apply to the generality of aggregates types with an established pattern of use and when required, provisions valid at the place of use can be used to assess their suitability.
NOTE 2 Properties for lightweight aggregates are specified in prEN 13055-1:1997.
Gesteinskörnungen für ungebundene und hydraulisch gebundene Gemische für Ingenieur- und Straßenbau
Diese Europäische Norm legt die Eigenschaften von Gesteinskörnungen fest, die durch Aufbereitung natürlicher, industriell hergestellter oder rezyklierter Materialien für hydraulisch gebundene und ungebundene Gemische für den Ingenieur und Straßenbau gewonnen werden.
Sie enthält Festlegungen für die Bewertung der Konformität von Produkten nach dieser Europäischen Norm.
ANMERKUNG 1 Die Anforderungen dieser Europäischen Norm basieren auf Erfahrungen mit Gesteinskörnungsarten, die sich in der Anwendung bewährt haben. Die Verwendung von Gesteinskörnungen aus Bezugsquellen ohne eine derartige Bewährung, wie z. B. von rezyklierten oder als bestimmte Nebenprodukte industrieller Prozesse entstandenen Gesteinskörnungen, sollte sorgfältig geprüft werden. Derartige Gesteinskörnungen können trotz Übereinstimmung mit sämtlichen Anforderungen dieser Europäischen Norm Eigenschaften besitzen, die nicht im Mandat M 125 erfasst sind und die nicht für die Gesamtheit der Gesteinskörnungsarten mit einer bewährten Anwendung gelten; falls erforderlich, können für die Beurteilung ihrer Eignung die am jeweiligen Verwendungsort geltenden Vorschriften herangezogen werden.
ANMERKUNG 2 Die Eigenschaften von leichten Gesteinskörnungen sind in EN 13055 2 festgelegt.
Granulats pour matériaux traités aux liants hydrauliques et matériaux non traités utilisés pour les travaux de génie civil et pour la construction des chaussées
La présente Norme Européenne spécifie les caractéristiques des granulats élaborés a partir de matériaux natu-rels, artificiels ou de recyclage pour les matériaux traités aux liants hydrauliques et matériaux non traités utilisés dans les travaux de génie civil et la construction des chaussées.
Elle comprend l'évaluation de la conformité des produits a la présente Norme Européenne.
NOTE 1 Les exigences de la présente Norme Européenne sont fondées sur l'expérience acquise avec des types de gra-nulats disposant d'un mode établi d'utilisation. Il convient de preter une attention particuliere a l'utilisation des granulats dont le mode d'utilisation n'est pas établi, par exemple les granulats recyclés et les granulats issus de certains produits industriels dérivés. Ces granulats, qui doivent etre conformes a toutes les spécifications de cette Norme Européenne, pour-raient avoir d'autres caractéristiques non mentionnées dans le mandat M 125 et ne s'appliquant pas a des types de granu-lats disposant d'un mode d'utilisation établi. Le cas échéant, les dispositions en vigueur sur le lieu d'utilisation peuvent etre adoptées pour évaluer leur aptitude a l'emploi.
NOTE 2 Les caractéristiques pour les granulats légers sont spécifiées dans le EN 13055-2.
Agregati za nevezane in hidravlično vezane materiale za uporabo v inženirskih objektih in za gradnjo cest
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aggregates for unbound and hydraulically bound materials for use in civil engineering work and road constructionGranulats pour matériaux traités aux liants hydrauliques et matériaux non traités utilisés pour les travaux de génie civil et pour la construction des chausséesGesteinskörnungen für ungebundene und hydraulisch gebundene Gemische für Ingenieur- und StraßenbauTa slovenski standard je istoveten z:EN 13242:2002SIST EN 13242:2003en91.100.15ICS:SLOVENSKI
STANDARDSIST EN 13242:200301-marec-2003
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13242December 2002ICS 91.100.15English versionAggregates for unbound and hydraulically bound materials foruse in civil engineering work and road constructionGranulats pour matériaux traités aux liants hydrauliques etmatériaux non traités utilisés pour les travaux de génie civilet pour la construction des chausséesGesteinskörnungen für ungebundene und hydraulischgebundene Gemische für Ingenieur- und StraßenbauThis European Standard was approved by CEN on 23 September 2002.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 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13242:2002 E
EN 13242:2002 (E)2ContentspageForeword.31Scope.42Normative references.43Terms and definitions.54Geometrical requirements.65Physical requirements.126Chemical requirements.137Durability requirements.168Evaluation of conformity.199Designation and description.2010Marking and labelling.20Annex A (normative)
Assessment of fines.21Annex B (informative)
Notes for guidance on the freezing and thawing resistance of aggregates.22Annex C (normative)
Factory production control.24Annex ZA (informative)
Clauses of this European Standard addressing essential requirements orother provisions of EU Directives.30Bibliography.38
EN 13242:2002 (E)3ForewordThis document (EN 13242:2002) has been prepared by Technical Committee CEN/TC 154 "Aggregates", thesecretariat 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 orby endorsement, at the latest by June 2003, and conflicting national standards shall be withdrawn at the latest byJune 2004.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive 89/106 EEC.For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.In this European Standard the annexes A and C are normative and the annex B is informative.Requirements for other end uses of aggregates will be specified in the following European Standards:EN 12620Aggregates for concreteEN 13043Aggregates for bituminous mixtures and surface treatments for roads, airfields andother trafficked areasEN 13055-1Lightweight aggregates - Part 1: lightweight aggregates for concrete, mortar and groutprEN 13055-2Lightweight aggregates - Part 2: Lightweight aggregates for bituminous mixtures and surfacetreatmentsand for unbound and bound applications, excluding concrete, mortar and groutEN 13139Aggregates for mortarEN 13383-1Armourstone - Part 1: SpecificationprEN 13450Aggregates for railway ballastAccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.
EN 13242:2002 (E)41 ScopeThis European Standard specifies the properties of aggregates obtained by processing natural or manufactured orrecycled materials for hydraulically bound and unbound materials for civil engineering work and road construction.It provides for the evaluation of conformity of the products to this European Standard.NOTE 1The requirements in this European Standard are based upon experience with aggregate types with an establishedpattern of use.
Care should be taken when considering the use of aggregates from sources with no such pattern of use, e.g.,recycled aggregates and aggregates arising from certain industrial by-products.
Such aggregates, which should comply with allthe requirements of this European Standard, can have other characteristics not included in Mandate M 125 that do not apply tothe generality of aggregates types with an established pattern of use and when required, provisions valid at the place of use canbe used to assess their suitability.NOTE 2Properties for lightweight aggregates are specified in EN 13055-2.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. For datedreferences, subsequent amendments to or revisions of any of these publications apply to this European Standard onlywhen incorporated in it by amendment or revision.
For undated references the latest edition of the publicationreferred to applies (including amendments).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 simplifiedpetrographic description.EN 932-5, Tests for general properties of aggregates — Part 5: Common equipment and calibration.EN 933-1, Tests for geometrical properties of aggregates — Part 1: Determination of particle sizedistribution - 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 933-5, Tests for geometrical properties of aggregates — Part 5: Determination of percentage of crushed andbroken surfaces in coarse aggregates particlesEN 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 1097-1, Tests for mechanical and physical properties of aggregates — Part 1: Determination of theresistance to wear (micro-Deval).EN 1097-2:1998, Tests for mechanical and physical properties of aggregates — Part 2: Methods for thedetermination of the resistance to fragmentation.EN 1097-6:2000, Tests for mechanical and physical properties of aggregates — Part 6: Determination ofparticle density and water absorption.EN 1367-1, Tests for thermal and weathering properties of aggregates — Part 1: Determination ofresistance to freezing and thawing.
EN 13242:2002 (E)5EN 1367-2, Tests for thermal and weathering properties of aggregates — Part 2: Magnesium sulphate test.EN 1367-3, Tests for thermal and weathering properties of aggregates — Part 3: Boiling test for“Sonnenbrand" basalt.EN 1744-1:1998, Tests for chemical properties of aggregates — Part 1: Chemical analysis.EN 1744-3, Tests for chemical properties of aggregates — Part 3: Preparation of eluates by leaching ofaggregates.ISO 565, Test sieves - Metal wire cloth, perforated metal plate and electroformed sheet – Nominal sizes ofopenings.3 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1aggregategranular material used in construction. Aggregates may be natural, manufactured or recycled3.2natural aggregateaggregate from mineral sources which have been subjected to nothing more than mechanical processing3.3manufactured aggregateaggregate of mineral origin resulting from an industrial process involving thermal or other modification3.4recycled aggregateaggregate resulting from the processing of inorganic material previously used in construction3.5normal weight aggregateaggregate of mineral origin having a particle density not less than 2,00 Mg/m3 (2 000 kg/m3) but less than3,00 Mg/m3 (3 000 kg/m3)3.6aggregate sizedesignation of aggregate in terms of lower (d) and upper (D) sieve sizes expressed in terms as d/DNOTEThis designation accepts the presence of some particles which will be retained on the upper sieve (oversize) andsome which will pass the lower sieve (undersize). The lower sieve size (d) can be zero.3.7fine aggregatedesignation given to size aggregates with d equal to 0 and D less than or equal to 6,3 mm (see Table 2)NOTEFine aggregate can be produced from natural disintegration of rock or gravel and/or by the crushing of rock or gravel.3.8coarse aggregatedesignation given to size aggregates with d equal to or greater than 1 mm and D greater than 2 mm3.9all-in aggregateaggregate consisting of a mixture of coarse and fine aggregates with D greater than 6,3 mm
EN 13242:2002 (E)6NOTEIt can be produced without separating into coarse and fine fractions or it can be produced by combining coarse andfine aggregate.3.10finesparticle size fraction of an aggregate which passes the 0,063 mm sieve3.11categorylevel of a property of an aggregate expressed as a range of values or a limiting valueNOTEThere is no relationship between the categories of different properties.3.12gradingparticle size distribution expressed as the percentage by mass passing a specified number of sieves3.13undersizepart of the aggregate passing the smaller of the limiting sieves used in the aggregate size description3.14oversizepart of the aggregate retained on the larger of the limiting sieves used in the aggregate size description4 Geometrical requirements4.1 GeneralThe necessity for testing and declaring all properties in this clause shall be limited according to the particularapplication or end use or origin of the aggregate.
When required, the tests specified in clause 4 shall be carried outto determine appropriate geometrical properties.NOTE 1When the value of a property is required but not defined by specified limits the value should be declared by themanufacturer as an XXDeclared category, e.g., in Table 5 a flakiness index of say 60 corresponds to FI60 (Declared value).NOTE 2When a property is not required, a “No requirement” category can be used.NOTE 3Guidance on selection of appropriate categories for specific applications can be found in national provisions in theplace of use of the aggregate.NOTE 4When specified, the requirements for the end-use product should supersede the requirements in this EuropeanStandard (e.g., grading and/or fines content for all-in aggregates).4.2 Aggregates sizesAll aggregates shall be described in terms of aggregate sizes using the designations d/D and shall comply with thegrading requirements specified in 4.3.Aggregate sizes shall be specified using the nominal sizes given in the Table 1 comprising the basic set or thebasic set plus set 1 or the basic set plus set 2. A combination of sieve sizes from set 1 and set 2 is not allowed.Aggregate sizes shall be separated by a ratio between their upper sieve size D and the lower sieve size d of notless than 1,4.
EN 13242:2002 (E)7Table 1 — Sieve sizes for specifying aggregate sizesBasic setmmBasic set plus set 1mmBasic set plus set 2mm0124––8––––16––31,5 (32)–––63––01245,6 (5)–8–11,2 (11)––16–22,431,5 (32)–455663–900124–6,3 (6)810–12,5 (12)141620–31,5 (32)40–6380––NOTE 1
Greater than 90 mm sieve sizes can be used for particular applicationsNOTE 2
Rounded sizes shown in parentheses can be used as simplifieddescriptions of aggregate sizes.4.3 Grading4.3.1 GeneralThe grading of aggregate sizes when determined in accordance with EN 933-1 shall comply with the requirementsof 4.3.2 and 4.3.3 as appropriate to its aggregate size d/D.Combinations of two or more than two adjacent aggregate sizes or all-in aggregates are permitted.NOTEAggregate supplied as a mixture of different sizes or types should be uniformly blended. When aggregates ofsignificantly different density are blended caution is necessary to avoid segregation.When assessing production within a system of factory production control at least 90 % of gradings, taken ondifferent batches within a maximum period of 6 months, shall fall within the limits specified in 4.3.2 and 4.3.3 fortolerances on manufacturers' declared typical gradings.
EN 13242:2002 (E)8Table 2 — General grading requirementsPercentage passing by massAggregateSizemm2 Da1,4 D b cD dd c ed/2 b cCategoryGCoarsed
110098 to 10085 to 990 to 150 to 5GC 85-15and D > 210098 to 10080 to 990 to 200 to 5GC 80-20Fine d = 010098 to 10085 to 99––GF 85and D
6,310098 to 10080 to 99––GF 80 d = 0-10085 to 99––GA 85All-in10098 to 10080 to 99––GA 80and D > 6,3100–75 to 99––GA 75a
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
Where the sieves calculated as 1,4 D and d/2 are not exact sieve sizes in the ISO 565/R20 series then
the next higher or lower sieve size respectively shall be adopted.c
For special uses additional requirements may be specified.d
The percentage passing D may be greater than 99 % but in such cases the manufacturer 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. Sieves with a ratio less than 1,4 times the next lower sieve
may be excluded.e
Limits for the percentage passing d can be modified to 1 to 15 for GC 85-15 and 1 to 20 for GC 80-20
where necessary to ensure a well graded aggregate.4.3.2Coarse aggregateAll coarse aggregates shall comply with the general grading requirements specified in Table 2 appropriate to theirsize d/D.When required, for graded coarse aggregate where D/d ³ 2, the following additional requirements shall apply forthe percentage passing the mid-size sieve:¾
all gradings shall comply with the overall limits given in Table 3;¾
the manufacturer shall document and, on request, declare the typical grading passing the mid-size sieve.
The
limit deviations shall comply with the requirements of the categories selected in Table 3 according to theparticular
application or end use.For single coarse aggregate where D/d <2, there shall be no requirement additional to those specified in Table 2.
EN 13242:2002 (E)9Table 3 — Categories of overall limits and tolerances for coarse aggregate at mid-size sievesOverall limits and tolerances at mid-size sieves(Percentage passing by mass)where D/d
³ 2D/dMid-sizesievemmOverall limitsLimit deviations onmanufacturer's declaredtypical gradingCategoryGT<4D/1,425 to
80± 15GTC25/1520 to 70± 15GTC20/15³4D/220 to 70± 17,5GTC20/17,5No requirementGTNRWhen the mid-size sieves calculated in the above is not an exact sieve size in the ISO 565/R20 seriesthen the nearest sieve in the series shall be used.4.3.3Fine aggregate and all-in aggregateFine aggregates and all-in aggregates shall comply with the general grading requirements specified in Table 2.When required, the manufacturer shall document, and on request declare, the typical grading for each fineaggregate and all-in aggregate size produced.
The limit deviations shall comply with the requirements of thecategories selected in Table 4 according to the particular application or end use.Table 4 — Categories of tolerances on manufacturer’s declaredtypical grading of fine aggregate and all-in aggregateLimit deviationsPercentage passing by massCategoryD sieveD/2 sieve0,063 mm sieveFine aggregateGTFAll-in aggregateGTA± 5± 5± 7,5± 10± 20± 25± 3 a± 4 b± 5 cGTF10GTF20GTF25GTA10GTA20GTA25No requirementGTFNRGTANRWhen the mid-size sieve calculated as above is not an exact sieve size in the ISO 565/R20 series, thenthe nearest sieve in the series shall be used.NOTE
Limit deviations of D sieves are further limited by the requirements of Table 2.a
Except for category f 3
(see Table 8).b
Except for categories f 3 and f 7 for fine aggregates and f 3 , f 5 and f 7 for all-in aggregates (see Table 8).c
Except for categories f 3 and f 7 for fine aggregates and f 3 , f 5 , f 7 and f 9 for all-in aggregates (see Table 8).
EN 13242:2002 (E)104.4 Shape of coarse aggregateWhen required, the shape of coarse aggregates shall be determined in terms of the flakiness index, as specified inEN 933-3.
The flakiness index shall be the reference test for the determination of the shape of coarse aggregates.The flakiness index shall be declared in accordance with the relevant category specified in Table 5 according to theparticular application or end use.Table 5 — Categories for maximum values of flakiness indexFlakiness indexCategoryFI£ 20£ 35£ 50> 50FI20FI35FI50
FIDeclaredNo requirementFINRWhere required, the shape index, determined in accordance with EN 933-4, shall be declared in accordancewith the relevant category specified in Table 6 according to the particular application or end use.Table 6 — Categories for maximum values of shape indexShape indexCategorySI£ 20£ 40£ 55> 55SI20SI40SI55
SIDeclaredNo requirementSINR4.5 Percentage of crushed or broken particles and of totally rounded particles in coarse aggregatesWhen required, the percentage of crushed or broken and of totally rounded particles in coarse aggregates,determined in accordance with EN 933-5, shall be declared in accordance with the relevant category specified inTable 7.Aggregates obtained from crushing rock shall be assumed to be category C90/3 and do not require furthertesting.
EN 13242:2002 (E)11Table 7 — Categories for percentage of crushed or broken particlesand totally rounded particles in coarse aggregatesMass fraction of crushed orbroken particles%Mass fraction of totallyrounded particles%CategoryC90 to 1000 to 3
C90/350 to 1000 to 10
C50/1050 to 1000 to 30
C50/30-0 to 50
CNR/50-0 to 70
CNR/70Declared valueDeclared value
CDeclaredNo requirementNo requirementCNR4.6 Fines contentWhen required, the fines content for coarse aggregate, fine aggregate and all-in aggregate, shall be declared inaccordance with the relevant category specified in Table 8.Table 8 — Categories for maximum values of fines contentAggregateMass fraction of passing0,063 mm sieve,%Categoryf£ 2f 2£ 4f 4> 4
f DeclaredCoarseNo requirementf NR£ 3f 3£ 7f 7£ 10f 10£ 16f 16£ 22f 22> 22
f DeclaredFineNo requirementf NR£ 3f 3£ 5f 5£ 7f 7£ 9f 9£ 12f 12£ 15f 15> 15
f DeclaredAll-inNo requirementf NR
EN 13242:2002 (E)124.7 Fines qualityWhen the fines content in the fine aggregate exceeds a mass fraction of 3 % and there is documented evidence ofsatisfactory use, further testing may not be necessary.
When required, aggregates shall be assessed for harmfulfines in accordance with annex A.5 Physical requirements5.1 GeneralThe necessity for testing and declaring all properties in this clause shall be limited according to the particularapplication or end use or origin of the aggregate.
When required, the tests specified in clause 5 shall be carried outto determine appropriate physical properties.NOTE 1When the value of a property is required but not defined by specified limits the value should be declared by themanufacturer as an XXDeclared category, e.g., in Table 9 a Los Angeles coefficient of say 65 corresponds to LA65 (Declaredvalue).NOTE 2When a property is not required, a “No requirement” category can be used.NOTE 3Guidance on selection of appropriate categories for specific applications can be found in national provisions in theplace of use of the aggregate.5.2 Resistance to fragmentation of coarse aggregateWhen required, the resistance to fragmentation shall be determined in terms of the Los Angeles coefficient, asspecified in EN 1097-2:1998, clause 5.
The Los Angeles test method shall be the reference test for thedetermination of resistance of fragmentation.
The Los Angeles coefficient shall be declared in accordance with therelevant category specified in Table 9 according to the particular application or end use.Table 9 —Categories for maximum values of Los Angeles coefficientsLos Angeles coefficientCategoryLA£ 20LA20£ 25LA25£ 30LA30£ 35LA35£ 40LA40£ 50LA50£ 60LA60> 60
LADeclaredNo requirementLANRWhere required, the impact value, determined in accordance with EN 1097-2:1998, clause 6 shall be declared inaccordance with the relevant category specified in Table 10 according to the particular application or end use.
EN 13242:2002 (E)13Table 10 — Categories for maximum values of resistance to impactImpact test value%CategorySZ£ 18SZ18£ 22SZ22£ 26SZ26£ 32SZ32£ 35SZ35£ 38SZ38> 38
SZDeclaredNo requirementSZNR5.3 Resistance to wear of coarse aggregateWhen required, the resistance to wear of coarse aggregate (micro-Deval coefficient, MDE) determined inaccordance with EN 1097-1, shall be declared in accordance with the relevant category specified in Table 11according to the particular application or end use.Table 11 — Categories for maximum values of resistance to wearmicro-Deval coefficientCategoryMDE£ 20£ 25£ 35£ 50> 50MDE20MDE25MDE35MDE50
MDEDeclaredNo requirementMDENR5.4 Particle densityWhen required, the particle density shall be determined in accordance with EN 1097-6:2000, clauses 7, 8 or 9,depending upon the particle size of the aggregate, and the results declared.5.5 Water absorptionWhen required, the water absorption shall be determined in accordance with EN 1097-6:2000, clauses 7, 8 or 9,depending upon the particle size of the aggregate, and the results declared.6 Chemical requirements6.1 GeneralThe necessity for testing and declaring all properties in this clause shall be limited according to the particularapplication or end use or origin of the aggregate. When required, the tests specified in clause 6 shall be carried outto determine appropriate chemical properties.
EN 13242:2002 (E)14NOTE 1When the value of a property is required but not defined by specified limits the value should be declared by themanufacturer as an XXDeclared category, e.g., in Table 12 a value of say with a mass fraction of 1,4 % for the acid-solublesulphate content of air-cooled blastfurnace slag corresponds to AS1,4 (Declared value).NOTE 2When a property is not required, a “No requirement” category can be used.NOTE 3Guidance on selection of appropriate categories for specific applications can be found in national provisions in theplace of use of the aggregate.6.2 Acid-soluble sulphateWhen required, the acid soluble sulphate content of combined aggregates for hydraulically bound materials,determined in accordance with EN 1744-1:1998, clause 12, shall be declared in accordance with the relevantcategory specified in Table 12.Table 12 — Categories for maximum values of acid-soluble sulphate contentAggregateAcid soluble sulfatecontent%CategoryAS£ 0,2AS0,2£ 0,8AS0,8> 0,8
ASDeclaredAggregates other than air-cooledblastfurnace slagNo requirementASNR£ 1,0AS1,0> 1,0
ASDeclaredAir-cooled blastfurnace slagNo requirementASNR6.3 Total sulfurWhen required, the total sulfur content of the aggregate, determined in accordance with EN 1744-1:1998,clause 11, shall be declared in accordance with the relevant category specified in Table 13.Table 13 — Categories for maximum values of total sulfur contentAggregateTotal sulfur content%CategoryS£ 1S1> 1
SDeclaredAggregates other than air-cooledblastfurnace slagNo requirement
SNR£ 2S2> 2
SDeclaredAir-cooled blastfurnace slagNo requirement
SNR
EN 13242:2002 (E)15NOTE
Special precautions are necessary if pyrrhotite, an unstable form of iron sulphide (FeS), is present in the aggregate. Ifthis mineral is known to be present, a maximum total sulphur content of 0,4 % as S should apply.6.4 Other constituents6.4.1 Constituents which alter the rate of setting and hardening of hydraulically bound mixturesAggregates and filler aggregates that contain organic or other substances in proportions that alter the rate ofsetting and hardening of hydraulically bound mixtures shall be assessed for the effect on stiffening time andcompressive strength in accordance with EN 1744-1:1998, 15.3.The proportions of such materials shall be such that they do not:a)increase the stiffening time of mortar test specimens by more than 120 min;b)decrease the compressive strength of mortar test specimens by more than 20 % at 28 days.The presence of organic matter shall be determined in accordance with EN 1744-1:1998, 15.1 (sodium hydroxidetest).
If the results indicate the presence of humic acid, the presence of fulvo acids shall be determined inaccordance with EN 1744-1:1998, 15.2.
If the supernatant liquid in these tests is lighter than the standard coloursthe aggregates shall be considered to be free from organic matter.NOTE 1Some inorganic compounds which discolour the supernatant liquid in the sodium hydroxide test do not adverselyaffect the setting and hardening of hydraulically bound mixtures.NOTE 2Sugars do not affect the colour of the supernatant liquid in the sodium hydroxide test or the fulvo acid test.
If it issuspected that sugars or sugar type materials are present, the aggregate should be tested using the mortar specimen test (seeEN 1744-1:1998, 15.3). The stiffening time and compressive strength requirements shown above should apply.6.4.2 Constituents which affect volume stability of blastfurnace and steel slag for unbound aggregates6.4.2.1 Volume stability of steel slagsWhen required the volume stability of steel slag aggregate shall be determined in accordance withEN 1744-1:1998, 19.3.
Steel slag aggregate shall be considered to be volumetrically stable if the expansion is notgreater than the specified maximum value declared in accordance with the category specified in Table 14according to the particular application or end use. For determination of the magnesium oxide (MgO) content thetest specified in EN 196-2 shall be used.
EN 13242:2002 (E)16Table 14 — Categories for maximum expansion values for steel slag unbound aggregateType of steel slagExpansionPercentage by volumeCategoryV5V5
V7,5
V10 > 10
VDeclaredBOF-slag a /EAF-slag bNo requirement VNRNOTE 1
When the MgO content determined in accordance with EN 196-2 is not greater than orequal to 5 %, the testing time should be 24 h.
When the MgO content is more than 5 %, thetesting time should be 168 h.NOTE 2
The total MgO content is used as a measure of free MgO, in the absence, at presentof a reliable method of determining the content of free MgO. In the event of a reliable methodbeing developed, the types should be redefined in terms of free MgO content. MgO valuesdeclared by steel manufacturers are acceptable for use in determining testing time for steel slag.a BOF-slag: Basic oxygen furnace slag.b EAF-slag: Electric arc furnace slag.6.4.2.2 Dicalcium silicate disintegration of air-cooled blastfurnace slagsWhen required, air-cooled blastfurnace slag aggregate shall be tested in accordance with EN 1744-1:1998, 19.1,and shall be free from dicalcium silicate disintegration.6.4.2.3 Iron disintegration of air-cooled
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