FprEN 12620
(Main)Aggregates for concrete
Aggregates for concrete
This document specifies the characteristics 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. It also covers recycled and manufactured aggregates with particle densities greater than 1,50 Mg/m3.
NOTE 1 Assessment of the density of recycled aggregates is typically carried out on coarse fractions.
NOTE 2 Lightweight aggregates are specified in EN 13055.
Assessment and Verification of Constancy of Performance (AVCP) of aggregates to this document are given in EN 16236.
Aggregates used in construction are meant to comply with all the relevant European standards for aggregates. These standards include comprehensive and specific provisions for natural aggregates, manufactured and recycled aggregates, dealing with, for example, the stability of certain basalts, the expansion of certain slags and the constituents of recycled aggregates.
Gesteinskörnungen für Beton
Diese Europäische Norm legt die Merkmale von Gesteinskörnungen und Füllern fest, die durch Aufbereitung natürlicher, industriell hergestellter oder rezyklierter Materialien für die Verwendung in Beton zur Verwendung im Hochbau, im Straßenbau und bei Ingenieurbauten gewonnen werden.
Sie gilt für Gesteinskörnungen mit einer Trockenrohdichte größer als 2,00 Mg/m3. Die Norm behandelt ebenfalls rezyklierte industriell hergestellte Gesteinskörnungen mit einer Rohdichte größer als 1,50 Mg/m3, wobei entsprechende Vorbehalte gelten (siehe Anhang A). Die Bewertung der Dichte rezyklierter Gesteinskörnungen erfolgt üblicherweise an groben Fraktionen.
ANMERKUNG 1 Zu Festlegungen von leichten Gesteinskörnungen siehe EN 13055.
Der Einsatz von Gesteinskörnungen als Boden wird in dieser Norm nicht behandelt.
ANMERKUNG 2 Wegen der großen Unterschiede in den geologischen und pedologischen Gegebenheiten in Europa können genaue Definitionen zu Böden jenen Dokumenten entnommen werden, die sich mit ihrer Verwendung am jeweiligen Einsatzort befassen.
Anhang A (normativ) enthält eine Liste von betrachteten Ausgangsstoffen, die in den Anwendungsbereich der Norm fallen.
Festlegungen hinsichtlich der Bewertung und Überprüfung der Leistungsbeständigkeit (AVCP) von Gesteinskörnungen nach dieser Norm sind in FprEN 16236 zu finden.
Gesteinskörnungen für die Verwendung im Bauwesen müssen alle Anforderungen der einschlägigen Europäischen Normen zu Gesteinskörnungen erfüllen. Diese Normen legen allgemeine und besondere Anforderungen an natürliche Gesteinskörnungen, industriell hergestellte Gesteinskörnungen und rezyklierte Gesteinskörnungen, wie beispielsweise das Ausdehnungsverhalten bestimmter Schlacken und die Zusammensetzung rezyklierter Gesteinskörnungen, fest.
Granulats pour béton
La présente Norme européenne spécifie les caractéristiques des granulats et fillers, élaborés à partir de matériaux naturels, artificiels ou recyclés et des mélanges de ces granulats destinés à être utilisés dans la fabrication du béton, et dans les travaux de constructions de bâtiments, de routes et de génie civil.
Elle s'applique aux granulats dont la masse volumique réelle des particules séchées à l’étuve est supérieure à 2,00 Mg/m3. Elle s'applique également aux gravillons recyclés et artificiels dont la masse volumique réelle est supérieure à 1,50 Mg/m3, avec les mises en garde appropriées (voir Annexe A). L’évaluation de la densité des granulats recyclés est typiquement effectuée sur les gravillons.
NOTE 1 Les propriétés des granulats légers sont spécifiées dans l’EN 13055.
L’utilisation des granulats en tant que sols n’est pas couverte par cette norme.
NOTE 2 En raison de l’importante variabilité des conditions géologiques et pédologiques en Europe, la définition précise du sol peut être trouvée dans les documents relatifs à l’application sur le lieu d’utilisation
Une liste des origines des matériaux qui ont été prises en considération et relèvent du domaine d'application de la présente norme est donnée en Annexe A (normative).
Les exigences relatives à l’Evaluation et la Vérification de la Constance des Performances (EVCP) des produits de cette norme européenne sont spécifiées dans le FprEN 16236.
Les granulats utilisés dans la construction doivent respecter toutes les exigences des Normes européennes concernées pour les granulats. Ces dernières contiennent les exigences générales et particulières relatives aux granulats naturels, artificiels et recyclés, et traitent par exemple de l'expansion de certains laitiers et de la composition des granulats recyclés.
Agregati za beton
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 12620:2015
01-julij-2015
Agregati za beton
Aggregates for concrete
Gesteinskornungen fur Beton
Granulats pour béton
Ta slovenski standard je istoveten z: prEN 12620
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
91.100.30 Beton in betonski izdelki Concrete and concrete
products
oSIST prEN 12620:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 12620:2015
oSIST prEN 12620:2015
EUROPEAN STANDARD
DRAFT
prEN 12620
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 91.100.30 Will supersede EN 12620:2002+A1:2008
English Version
Aggregates for concrete
Gesteinskornungen fur Beton
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 154.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12620:2015 E
worldwide for CEN national Members.
oSIST prEN 12620:2015
prEN 12620:2015 (E)
Contents Page
Foreword . 4
1 Scope. 6
2 Normative references . 6
3 Terms and definitions . 8
4 General requirements . 10
5 Geometrical requirements. 11
5.1 General . 11
5.2 Aggregate sizes . 11
5.3 Grading . 12
5.3.1 General . 12
5.3.2 Coarse aggregates . 13
5.3.3 Fine aggregates . 13
5.3.4 All-in aggregates . 14
5.3.5 Special use aggregates and declared grading categories . 14
5.3.6 Grading of added filler . 14
5.3.7 Natural graded 0/8 mm aggregates . 15
5.4 Fines content . 15
5.5 Fines quality . 17
5.6 Particle shape of coarse and all-in aggregates . 18
5.6.1 Flakiness index and shape index . 18
5.6.2 Percentage of crushed particles of coarse and all-in aggregates . 19
5.6.3 Angularity of fine aggregates . 19
5.7 Shell content of coarse and all-in aggregates . 20
6 Physical requirements . 20
6.1 General . 20
6.2 Resistance to fragmentation . 20
6.3 Resistance to wear . 21
6.4 Particle density and water absorption . 22
6.4.1 Particle density . 22
6.4.2 Water absorption . 22
6.5 Bulk density . 22
6.6 Resistance to polishing of Aggregates for application in trafficked courses . 22
6.7 Resistance to surface abrasion . 22
6.8 Resistance to abrasion from studded tyres for application insurface courses . 23
7 Chemical requirements . 23
7.1 General . 23
7.2 Petrographic description. 23
7.3 Classification of the constituents of coarse recycled aggregates . 23
7.4 Sulfur containing compounds . 26
7.4.1 Acid-soluble sulfate . 26
7.4.2 Total sulfur . 26
7.4.3 Water soluble sulfate content of recycled aggregates . 26
7.5 Chlorides . 27
7.6 Carbonate content for concrete pavement surface courses of fine aggregates. 27
7.7 Other constituents . 27
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7.7.1 Constituents which alter the rate of setting and hardening of concrete . 27
7.7.2 Constituents which affect the volume stability of air-cooled blastfurnace slag . 28
7.8 Dangerous substances. 28
8 Durability . 29
8.1 General . 29
8.2 Resistance to weathering . 29
8.3 Freeze – thaw resistance . 29
8.3.1 Water absorption as a screening test for freeze-thaw resistance . 29
8.3.2 Resistance to freezing and thawing . 30
8.3.3 Resistance to freezing and thawing in the presence of salt (extreme conditions) . 30
8.4 Volume stability - drying shrinkage . 31
8.5 Alkali-silica reactivity. 31
9 Assessment and Verification of Constancy of Performance . 31
10 Designation . 31
10.1 Designation and description . 31
10.2 Additional information for the description of an aggregate . 32
11 Marking and labelling . 32
Annex A (informative) Source materials considered in the development of EN 12620 and
their status in respect of the scope of the standard . 33
Annex B (informative) Procedure for the incorporation of new sources . 36
B.1 General procedure . 36
B.2 Format . 36
Annex C (informative) Guidance on the description of coarseness/fineness of
fine 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 Regulation . 41
ZA.1 Scope and relevant characteristics . 41
ZA.2 Procedure for AVCP of aggregates and filler aggregates . 44
ZA.2.1 Systems of AVCP . 44
ZA.2.2 Declaration of performance (DoP) . 45
ZA.2.2.1 General . 45
ZA.2.2.2 Content . 46
ZA.2.2.3 Examples of DoP . 47
ZA.3 CE marking and labelling . 51
Bibliography . 59
oSIST prEN 12620:2015
prEN 12620:2015 (E)
Foreword
This document (prEN 12620:2015) has been prepared by Technical Committee CEN/TC 154
“Aggregates”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12620:2002+A1:2008.
This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
Construction Products Regulation (EU) No. 305/2011.
For relationship with EU Regulation(s), see informative Annex ZA, which is an integral part of this
document.
The most significant technical changes compared to the previous edition include:
a) Harmonisation of vocabulary and Annex ZA to be consistent with Construction Products
Regulations;
b) Unification of categories which are common across the four main aggregate standards:
EN 12620, EN 13043, EN 13139 and EN 13242;
c) Description of assessment and verification of conformity of performance of aggregates (AVCP) -
type testing and factory production control in a separate new standard prEN 16236;
d) Implementing general sentences on dangerous substances and adding a new normative Annex A
dealing with all source materials considered;
e) Unification of definitions which are common across the four main aggregate standards:
EN 12620, EN 13043, EN 13139 and EN 13242, i.e. for coarse, fine, all-in aggregates and
natural graded 0/8 aggregates;
f) Adding categories for the sand equivalent value for fines quality;
g) Adding categories for the methylene blue value for fines quality;
h) Adding the categories for maximium Micro-Deval, angularity and water suction height
Inserting a new clause “General Requirements”
In this document the wordings ‘property and characteristic’ have the same meaning
Requirements for assessment and verification of constancy of performance are given in prEN 16236.
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;
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prEN 12620:2015 (E)
— 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.
Note: Due to fact that the EC has not yet been able to confirm the financial commitment for the New
Approach Consultants’ work in 2015, there are currently no New Approach Consultants in place for
2015. Therefore the provisions of CEN-CENELEC Guide 15 cannot be met.
This shall not prevent the processing of draft standards nor the offering of harmonized standards to
the European Commission. In particular, draft standards can be sent to vote without Consultant
assessment.
This note will be removed from the Foreword of the finalized publication.
oSIST prEN 12620:2015
prEN 12620:2015 (E)
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/m . It also covers
coarse recycled aggregate with particle densities between 1,50 Mg/m with appropriate caveats and
recycled fine aggregate with appropriate caveats(See Annex A)
NOTE 1 Properties for lightweight aggregates are specified in EN 13055.
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 Assessment and Verification of the Constancy of
Performance (AVCP) of the products to this European Standard are given in prEN 16236.
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.
NOTE 2 Categories, notes, comments etc, which are grey shaded, are not to be used in concrete
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 196-2, Method 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
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 933-6, Tests for geometrical properties of aggregates - Part 6: Assessment of surface
characteristics - Flow coefficient of aggregates
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
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prEN 12620:2015 (E)
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+A1:2012, 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
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 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other
trafficked areas
EN 13139, Aggregates for mortar
EN 13242, Aggregates for unbound and hydraulically bound materials for use in civil engineering work
and road construction;
EN 13450, Aggregates for railway ballast.
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prEN 12620:2015 (E)
prEN 16236, 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
level
result of the assessment of the performance of an aggregate in relation to its essential characteristics
expressed as a numerical value
EXAMPLE WA = 0,5 %
24 Declared
3.6
class
range of levels, delimited by a minimum and a maximum value, of performance of an aggregate
EXAMPLE G 85/15
c
3.7
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.
EXAMPLES FI 50, f 25 (Declared category)
Declared
3.8
declared value
level of property declared by the manufacturer
EXAMPLE ρ 1,5 (Declared value)
rd Declared
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prEN 12620:2015 (E)
3.9
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).
3.10
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 aggregates for bituminous mixtures only
G = grit (D≤4 and d≥1)
F = fine
NG = natural graded
A = all-in
X: lower limit passing D
Y: upper limit passing d
3.11
fines
particle size fraction of an aggregate that passes the 0,063 mm sieve
3.12
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 grit – see 3.10) are treated as
coarse aggregate.
3.13
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.
3.14
natural graded 0/8 mm aggregate
designation given to natural aggregate of glacial and/or fluvial origin with D less than or equal to 8 mm
Note 1 to entry: This aggregate can also be produced by blending processed aggregate.
3.15
all-in aggregate
aggregate consisting of a mixture of coarse and fine aggregates with D greater than 4 mm and d = 0
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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.
3.16
filler aggregate
aggregate, most of which passes a 0,063 mm sieve
3.17
added filler
filler aggregate, which has been produced separately, which can be added to construction materials
to provide certain properties
3.18
mixed filler
filler aggregate of mineral origin, which has been mixed with calcium hydroxide
3.19
particle size fraction
fraction of an aggregate passing the larger of two sieves and retained on the smaller
Note 1 to entry: The lower limit can be zero.
3.20
oversize
that part of the aggregate retained on the larger of the limiting sieves used in aggregate size
description
3.21
undersize
part of the aggregate passing the smaller of the limiting sieves used in aggregate size description
3.22
batch
production quantity, a delivery quantity, a partial delivery quantity (railway wagon, load, lorry load,
ship’s cargo) or a stockpile produced at one time under conditions that are presumed uniform
Note 1 to entry: With a continuous process the quantity produced during a specified period should be treated as a
batch.
4 General requirements
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, are not used for aggregates for concrete.
NOTE Guidance on selection of appropriate categories for specific applications can be found in national
provisions in the place of use of the aggregate.
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).
When the value of a property is required but not defined by specified limits the value should be
declared as an XX category, e.g. a value of say 55 for the flakiness index corresponds to
Declared
FI 55 (Declared category).
Declared
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When a property is not required, a “No requirement” category may be used
5 Geometrical requirements
5.1 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 5 to determine the relevant geometrical properties.
5.2 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 5.3, 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 1with 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. 0/4 mm, 0/2 mm, 2/4 mm 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.
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 –
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prEN 12620:2015 (E)
– 56 –
63 63 63
– – 80
– 90 –
a) Rounded sizes shown in parentheses can be used as simplified descriptions of
aggregate sizes.
5.3 Grading
5.3.1 General
The grading of the aggregate, when determined in accordance with EN 933-1, shall conform to the
requirements of 5.3.2 to 5.3.5 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.
Size designations and grading categories are essentially categories of convenience and different
declared sizes and grading categories may be agreed for use.
Where the specification requires the use of sieves which are a fraction or a multiple of the upper sieve
size (e.g. 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, 1,4D, 2D size,
the manufacturer may choose to use this R20 size
Table 2 — General grading requirements
Size Percentage passing by mass Category
Aggregate
b d
2Da 1,4D D d d/2 G
mm
G 90/10
100 100 90 to 99 0 to 10 0 to 2
C
G 90/15
100 98 to 100 90 to 99 0 to 15 0 to 5
C
G 90/20
100 98 to 100 90 to 99 0 to 20 0 to 5
C
G 85/15
100 98 to 100 85 to 99 c 0 to 15 0 to 5
C
D > 4
d ≥ 1
G 85/20
100 98 to 100 85 to 99 c 0 to 20 0 to 5
C
G 80/20
Coarse 100 98 to 100 80 to 99 0 to 20 0 to 5
C
G 85/35
100 98 to 100 85 to 99 0 to 35 0 to 5
C
G A85/15
100 98 to 100 85 to 99 c 0 to 15 0 to 2
C
G 85/15
100 95 to 100 85 to 99 0 to 15 –
G
D ≤ 4
G 85/20
100 98 to 100 85 to 99 0 to 20 0 to 5
G
d ≥ 1
G 85/35
100 98 to 100 85 to 99 0 to 35 0 to 5
G
GF85
100 95 to 100 85 to 99 – –
D ≤ 4
Fine
d = 0
100 98 to 100 80 to 99 – – GF 80
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Natural
D = 8
graded 100 98 to 100 90 to 99 – – GNG90
d = 0
aggregates
100 98 to 100 90 to 99 – – GA90
100 98 to 100 85 to 99 – – GA85
D > 4
All-in
d = 0
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 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.
c For single size coarse aggregates d/D, where D/d<2, of the categories G 85/15, G 85/20 and
C C
G A85/15the value of the percentage passing by mass at D may be lowered by 5 % according to the
C
particular application or end use.
d
Limits for the percentage passing d can be modified to 1 to 15 for G 85/15 and 1 to 20 for G 85/20
C G
where necessary to ensure a well-graded aggregate.
5.3.2 Coarse aggregates
Coarse aggregates shall conform to the general grading requirements specified in Table 2 appropriate
to their size designation d/D and grading category GCX/Y.
When required for graded coarse aggregates, defined as those where D/d > 2 and > 11,2 mm, all
gradings shall conform to the overall limits in Table 3. The typical grading passing the mid size sieve
shall be declared and the tolerances selected from Table 3 appropriate to the grading category shall
be applied.
Table 3 — Overall limits and tolerances for coarse aggregate grading at mid-size sieves
Overall limits and tolerances at mid-size sieves
Mid-size sieve
(Percentage passing by mass)
Category
D/d
Tolerances on
G
mm Overall limits manufacturer’s declared
typical grading
25 to 80 ± 15 G25/15
< 4 D/1,4
20 to 70 ± 15 G20/15
≥ 4 D/2 20 to 70 ± 17,5 G20/17,5
No requirement GNR
5.3.3 Fine aggregates
Fine aggregates shall conform to the general grading requirements of Table 2 appropriate to their
upper sieve size D and grading category GF85.
When required the typical grading, in terms of the percentages passing the 4 mm, 2 mm, 1 mm,
0,250 mm and 0,063 mm sieves shall be declared.
When required, the grading of the fine aggregates shall comply with the tolerances in Table 4 applied
around the declared typical grading.
oSIST prEN 12620:2015
prEN 12620:2015 (E)
5.3.4 All-in aggregates
All-in aggregates shall conform to the general grading requirements of Table 2 appropriate to their
upper sieve size D and grading category G X/Y.
A
When required, the typical grading passing the mid-size sieve shall be declared and the tolerances
selected from Table 4 appropriate to the grading category shall be applied.
When required, all in aggregate for concrete shall, additionally, comply with the grading limits at
intermediate sieves from Table 5 appropriate to their upper sieve size D.
Table 4 — Tolerances on declared typical grading for fine and all-in aggregate
a b
Sieve size D D/2 0,063 0,250 Category
G
TC
mm
± 5 ± 10a ± 3 ± 20 G 10
TC
Tolerances
± 5 ± 20 ± 5 ± 25 G 20
TC
G 25
± 7.5 ± 25 ± 5 ± 25
TC
Percentage
passing by mass
G NR
No requirement
TC
a
In all cases the upper limit determined by fines category takes preference
b
Requirements on 0,250 mm sieve are only for fine aggregates
Table 5 — Overall limits for all-in aggregate at intermediate sieves
Size Overall limits at intermediate sieves
mm (Percentage passing by mass)
D/2 4 mm 2 mm 1 mm
D ≤ 10 50 to 90 — — 20 to 60
10 < D < 32 50 to 90 — 20 to 60 —
D ≥ 32 50 to 90 20 to 60 — —
NOTE Tolerances are further limited by the requirements for the percentage passing the appropriate sieve.
5.3.5 Special use aggregates and declared grading categories
When special aggregates gradings are required for a particular end use, or to define a specific source
special grading envelopes shall be defined using the appropriate sieves from Table 1. The general
principles of Clause 4 shall be applied using appropriate requirements at 2D, 1,4D, D, d, d/2. The
grading category shall be quoted as D X/Y to indicate clearly that it is a declared or special use
G
category. The aggregate shall conform to the grading requirements specified.
This recognises that size designations and grading categories are essentially categories of
convenience and different declared sizes and grading categories may be agreed for use.
5.3.6 Grading of added filler
The grading shall be determined in accordance with EN 933-10 and shall conform to the values
specified in Table 6.
oSIST prEN 12620:2015
prEN 12620:2015 (E)
Table 6 — Grading requirements for added filler
Sieve size Percentage passing by mass
mm Overall range for Manufacturer's maximum declared grading
a
individual results range
2 100 —
0,125 85 to 100 10
0,063 70 to 100 10
a
Declared grading range on the basis of the last 20 values.
5.3.7 Natural graded 0/8 mm aggregates
Natural graded 0/8 mm aggregates shall conform to the general grading requirements specified in
Table 2.
The following additional requirements shall be applied to control the variability of natural graded
0/8 mm aggregates.
a) the manufacturer shall document and, on request, declare the typical grading for each aggregate
produced;
b) gradings shall comply with the tolerances given in Table 7.
Table 7 — Tolerances on manufacturer's declared typical grading for natural graded 0/8 mm
aggregate
Sieve size Tolerances
mm Percentages passing by mass
8a ± 5
2 ± 10
1 ± 10
0,250 ± 10
0,125 ± 3
0,063b ± 2
a
Tolerances of ± 5 are further limited by the requirements for the percentage
passing D in Table 2.
b
In addition to the tolerances stated the maximum value of the fines content for the
category selected from Table 8 applies for the percentage passing the 0,063 mm
sieve.
5.4 Fines content
When required, the fines content shall be determined in accordance with EN 933-1, and the results
declared in accordance with the relevant category specified in Table 8.
oSIST prEN 12620:2015
prEN 12620:2015 (E)
Table 8 — Categories for maximum values of fines content
0,063 mm sieve Category
Aggregate
Percentage passing by
f
mass
f 0,5
≤ 0,5
≤ 1 f1
f1,5
≤ 1,5
Coarse
≤ 2 f2
≤ 4 f4
> 4 f
Declared
No requirement f
NR
≤ 3 f3
≤ 5 f5
≤ 7 f7
Natural graded
≤ 10 f10
0/8 mm
≤ 16 f16
> 16 f
Declared
No requirement f
NR
≤ 3 f3
≤ 5 f5
≤ 7 f7
≤ 9 f 9
All-in ≤ 11 f11
≤ 12 f12
≤ 15 f15
> 15 f
Declared
No requirement f
NR
≤ 3 f3
≤ 4 f4
≤ 5 f5
≤ 6 f6
≤ 7 f7
Fine
≤ 10 f10
≤ 16 f16
≤ 22 f22
> 22 f
Declared
No requirement f
NR
oSIST prEN 12620:2015
prEN 12620:2015 (E)
5.5 Fines quality
When required the fines quality of fine or all-in aggregates shall be evaluated and declared as follows:
When the fines content in the fine aggregate, or in the all-in aggregate 0/D with D ≤ 8 mm, is not
greater than 3 %, or any other value according to the provisions valid in the place of use of the
aggregate, no further testing is required.
If the fines content is greater than 3 %, the fines of fine or all-in aggregate shall be considered non-
harmful (e.g. swelling of clay) when one of the two following conditions apply:
a) The sand equivalent value (SE) of the required size fraction, when tested in accordance with
EN 933-8, and declared in accordance with the relevant size fraction and category in Table 9 is
higher than a specified limit.
Table 9 — Categories for minimum sand equivalent (SE) values
Sand equivalent Category (0/2) Category (0/4)
SE
SE10
SE 65
≥ 65 SE 65
10 4
SE 60
≥ 60 SE 60
10 4
SE 55
≥ 55 SE 55
10 4
SE 50
≥ 50 SE 50
10 4
SE 45
≥ 45 SE 45
10 4
SE 40
≥ 40 SE 40
10 4
SE 35
≥ 35 SE 35
10 4
SE 30
≥ 30 SE 30
10 4
SE
< 30 SE
10Declared 4Declared
SE NR
No requirement SE NR
10 4
b) The methylene blue value (MB) on the required size fraction, when tested in accordance with
EN 933-9, and declared in accordance with the relevant size fraction andcategory in Table 10 is
lower than a specified limit.
Table 10 — Categories for maximum methylene blue (MB) values
Category
Aggregate Methylene blue values
MB
MB value MB 0/2
g/kg
MB 1
≤ 1
MB 1,5
≤ 1,5
MB 2
Fine ≤ 2
MB 2,5
≤ 2,5
MB 3
≤ 3
MB
> 3
Declared
MB NR
No requirement
oSIST prEN 12620:2015
prEN 12620:2015 (E)
a
MB
0/D
MB
A
g/kg
≤ 0,8 MB 0,8
A
All-in
≤ 1 MB 1
A
> 1 MB
ADeclared
No requirement MB NR
A
a
MB is MB measured on 0/2 mm fraction and reported on 0/D mm.
0/D
NOTE If the fines content is greater than 3 % by mass and there is documented evidence of satisfactory
use, further testing might not be necessary.
5.6 Particle shape of coarse and all-in aggregates
5.6.1 Flakiness index and shape index
When required, the shape shall be determined in accordance with EN 933-3 in terms of the flakiness
index, and the results declared in accordance with the relevant category specified in
Table 11,according to the particular application or end use.
The flakiness index shall be the reference test for the determination of the shape.
Table 11 — Categories for maximum values of flakiness index
Flakiness index Category
FI
≤ 10 FI 10
≤ 15 FI 15
≤ 20 FI20
≤ 25 FI25
≤ 30 FI30
≤ 35 FI35
≤ 40 FI40
≤ 50 FI50
> 50 FI
Declared
No requirement FI
NR
When required, the shape index shall be determined in accordance with EN 933-4, and the results
declared in accordance with the relevant category specified in Table 12 according to the particular
application or end use.
oSIST prEN 12620:2015
prEN 12620:2015 (E)
Table 12 — Categories for maximum values of shape index
Category
Shape index
SI
≤ 15 SI15
≤ 20 SI 20
≤ 25 SI 25
≤ 30 SI 30
≤ 35 SI35
≤ 40 SI 40
≤ 50 SI50
≤ 55 SI 55
> 55 SI
Declared
No requirement SI NR
5.6.2 Percentage of crushed particles of coarse and all-in aggregates
When required, the percentage of crushed or broken particles including totally crushed particles and
the percentage of totally rounded particles shall be determined in accordance with EN 933-5 and the
results declared in accordance with the relevant category specified in Table 13.
Aggregates obtained from crushing rock shall be assumed to be category C and not require
100/0
further testing.
Table 13 — Categories for percentage of crushed or broken particles (including percentage of
totally crushed or broken particles and
...
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