Tests for general properties of aggregates - Part 3: Procedure and terminology for simplified petrographic description

This document specifies a basic procedure for the identification of the petrographic type of natural aggregates. It applies for usual requirements for the procedure and terminology for simplified petrographic description. Precise petrographic identification, of technical mineralogy and petrography for civil engineering or specific end uses, requires further examination and is therefore excluded from the scope of this document.
NOTE 1 In principle, a qualified geologist (petrographer), with experience of materials used in civil engineering and aware of the composition of the deposit, has sufficient skills to sample and name the rock.
NOTE 2 For precise petrographic identification and technical requirements for specific applications, a non-exhaustive list of reference literature is given in the Bibliography.
This document applies only to natural aggregates. It is used to describe rocks and sediments. It does not apply to the description and identification of manufactured or recycled aggregates.
Informative Annex A provides guidance on the petrographic nomenclature by giving definitions of simple petrographic terms applicable to rock types used for aggregates.

Prüfverfahren für allgemeine Eigenschaften von Gesteinskörnungen - Teil 3: Durchführung und Terminologie einer vereinfachten petrographischen Beschreibung

Dieses Dokument legt ein grundlegendes Verfahren zur Bestimmung des petrographischen Typs von natür-lichen Gesteinskörnungen fest. Es gelten die üblichen Anforderungen an das Verfahren und die Terminologie zur vereinfachten petrographischen Beschreibung. Die genaue petrographische Bestimmung der technischen Mineralogie und Petrographie für das Bauwesen oder sonstige spezifische Endanwendungen erfordert weitere Untersuchungen und ist daher vom Anwendungsbereich dieses Dokuments ausgeschlossen.
ANMERKUNG 1 Grundsätzlich verfügt ein qualifizierter Geologe (Petrograph), der Erfahrung mit den im Bauwesen ver¬wendeten Werkstoffen hat und die Zusammensetzung der Lagerstätte kennt, über ausreichende Fähigkeiten, um Proben zu nehmen und das Festgestein zu benennen.
ANMERKUNG 2 Zur genauen petrographischen Bestimmung sowie hinsichtlich der technischen Anforderungen für spezifische Anwendungen ist in den Literaturhinweisen eine Liste von Referenzliteratur angegeben, für die kein Anspruch auf Vollständigkeit besteht.
Dieses Dokument ist nur für natürliche Gesteinskörnungen anzuwenden. Es wird zur Beschreibung von Festgesteinen und Lockergesteinen verwendet. Es ist nicht für Beschreibung und Bestimmung von hergestellten oder rezyklierten Gesteinskörnungen anzuwenden.
Der informative Anhang A bietet eine Orientierungshilfe zur petrographischen Nomenklatur. Es werden einfache petrographische Begriffe definiert, die für in Gesteinskörnungen verwendete Gesteinsarten gelten.

Essais pour déterminer les propriétés générales des granulats - Partie 3 : Procédure et terminologie pour la description pétrographique simplifiée

Le présent document spécifie une procédure de base pour l’identification du type pétrographique des granulats d’origine naturelle. Elle s'applique aux exigences habituelles en matière de procédure et de terminologie pour la description pétrographique simplifiée. L’identification pétrographique précise, de la minéralogie technique et de la pétrographie pour le génie civil ou pour des applications spécifiques, nécessite un examen plus approfondi et est par conséquent exclue du domaine d’application du présent document.
NOTE 1 En principe, un géologue (pétrographe) qualifié ayant l’expérience des matériaux utilisés en génie civil et connaissant la composition du gisement possède les compétences nécessaires pour échantillonner et désigner la roche.
NOTE 2 Pour une identification pétrographique précise et des exigences techniques pour des applications spécifiques, une liste non exhaustive de références bibliographiques est donnée dans la Bibliographie.
Le présent document s’applique uniquement aux granulats d’origine naturelle. Il est utilisé pour décrire les roches et les sédiments. Il ne s'applique pas à la description et à l'identification des granulats artificiels ou recyclés.
L’Annexe A informative fournit des indications sur la nomenclature pétrographique en donnant les définitions de termes pétrographiques simples applicables aux types de roches utilisés dans les granulats.

Preskusi splošnih lastnosti agregatov - 3. del: Postopek in izrazje poenostavljenega petrografskega opisa

Ta dokument določa osnovni postopek za določanje petrografskega tipa naravnih agregatov. Za natančno petrografsko določanje, tehnično mineralogijo in petrografijo za gradbeništvo ali posebne končne načine uporabe so potrebne dodatne preiskave, zato navedeno ni vključeno v ta dokument.
OPOMBA 1:   Za vzorčenje in poimenovanje kamnine je zadostno usposobljen kvalificirani geolog (petrograf) z izkušnjami z materiali, ki se uporabljajo v gradbeništvu, in poznavanjem sestave nahajališča.
OPOMBA 2:   Za natančno petrografsko opredelitev je v razdelku Literatura podan neizčrpen seznam referenčne literature.
V tem dokumentu so obravnavani samo naravni agregati. Uporablja se za opis masivnih in nekonsolidiranih kamnin.
Dodatek A vsebuje smernice za petrografsko poimenovanje z opredelitvami preprostih petrografskih izrazov, ki se uporabljajo za vrste kamnin v agregatih.

General Information

Status
Published
Publication Date
21-Jun-2022
Withdrawal Date
30-Dec-2022
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
22-Jun-2022
Due Date
26-Aug-2021
Completion Date
22-Jun-2022

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SLOVENSKI STANDARD
SIST EN 932-3:2022
01-september-2022
Nadomešča:
SIST EN 932-3:1999
SIST EN 932-3:1999/A1:2004
Preskusi splošnih lastnosti agregatov - 3. del: Postopek in izrazje
poenostavljenega petrografskega opisa
Tests for general properties of aggregates - Part 3: Procedure and terminology for
simplified petrographic description
Prüfverfahren für allgemeine Eigenschaften von Gesteinskörnungen - Teil 3:
Durchführung und Terminologie einer vereinfachten petrographischen Beschreibung
Essais pour déterminer les propriétés générales des granulats - Partie 3 : Procédure et
terminologie pour la description pétrographique simplifiée
Ta slovenski standard je istoveten z: EN 932-3:2022
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
SIST EN 932-3:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 932-3:2022

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SIST EN 932-3:2022


EN 932-3
EUROPEAN STANDARD

NORME EUROPÉENNE

June 2022
EUROPÄISCHE NORM
ICS 91.100.15 Supersedes EN 932-3:1996
English Version

Tests for general properties of aggregates - Part 3:
Procedure and terminology for simplified petrographic
description
Essais pour déterminer les propriétés générales des Prüfverfahren für allgemeine Eigenschaften von
granulats - Partie 3 : Procédure et terminologie pour la Gesteinskörnungen - Teil 3: Durchführung und
description pétrographique simplifiée Terminologie einer vereinfachten petrographischen
Beschreibung
This European Standard was approved by CEN on 20 April 2022.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 932-3:2022 E
worldwide for CEN national Members.

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SIST EN 932-3:2022
EN 932-3:2022 (E)

Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions. 5
4 Reagent and apparatus . 6
5 Sampling and preparation of test portion . 7
5.1 General . 7
5.2 Rock sample . 7
5.3 Aggregates . 7
6 Test procedure . 7
6.1 Description of a rock sample . 7
6.2 Description of an aggregate test portion . 8
7 Test report . 9
7.1 Required data . 9
7.2 Optional data . 9
Annex A (informative) Nomenclature . 11
A.1 General . 11
A.2 Igneous rocks . 11
A.3 Sedimentary materials . 14
A.4 Metamorphic rocks . 16
A.5 Mineral ore . 17
Bibliography . 18

2

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SIST EN 932-3:2022
EN 932-3:2022 (E)
European foreword
This document (EN 932-3:2022) 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 December 2022, and conflicting national standards shall
be withdrawn at the latest by December 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 932-3:1996.
In comparison with the previous edition, the following technical modifications have been made:
a) The Scope has been revised to emphasize that the method only applies for simplified (not precise)
petrographic description of natural aggregates, and that it does not apply to manufactured or
recycled aggregates. The Scope, and the whole standard, now uses the term petrographic type, which
is used in the product standards. Note 1 has been reworded to show the role of the petrographer,
without normative wording. Presentation of Annex A has been included;
b) The Foreword and Normative references have been updated;
c) Clauses 3 Terms and definitions and 4 Reagent and apparatus have been extended;
d) Clauses 5 Sampling, 6 Description of a rock sample and 7 Description of an aggregate sample, have
been revised. They have been clarified, restructured and renamed to 5 Sampling and preparation of
test portion and 6 Test procedure, which is further divided into examination, description and
designation;
e) Test report has been revised and adapted to the current rules;
f) Annex A has been updated, restructured and extended with three illustrating figures;
g) The Bibliography has been updated and extended.
This document forms part of a series of standards for general properties of aggregates. Test methods for
other properties of aggregates are covered by the following European Standards:
— EN 933 (all parts), Tests for geometrical properties of aggregates
— EN 1097 (all parts), Tests for mechanical and physical properties of aggregates
— EN 1367 (all parts), Tests for thermal and weathering properties of aggregates
— EN 1744 (all parts), Tests for chemical properties of aggregates
— EN 13179 (all parts), Tests for filler aggregate used in bituminous mixtures
3

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SIST EN 932-3:2022
EN 932-3:2022 (E)
The other parts of EN 932 include:
— Part 1: Methods for sampling
— Part 2: Methods for reducing laboratory samples
— Part 5: Common equipment and calibration
— Part 6: Definitions of repeatability and reproducibility
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
4

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SIST EN 932-3:2022
EN 932-3:2022 (E)
1 Scope
This document specifies a basic procedure for the identification of the petrographic type of natural
aggregates. It applies for usual requirements for the procedure and terminology for simplified
petrographic description. Precise petrographic identification, of technical mineralogy and petrography
for civil engineering or specific end uses, requires further examination and is therefore excluded from the
scope of this document.
NOTE 1 In principle, a qualified geologist (petrographer), with experience of materials used in civil engineering
and aware of the composition of the deposit, has sufficient skills to sample and name the rock.
NOTE 2 For precise petrographic identification and technical requirements for specific applications, a non-
exhaustive list of reference literature is given in the Bibliography.
This document applies only to natural aggregates. It is used to describe rocks and sediments. It does not
apply to the description and identification of manufactured or recycled aggregates.
Informative Annex A provides guidance on the petrographic nomenclature by giving definitions of simple
petrographic terms applicable to rock types used for aggregates.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 932-1, Tests for general properties of aggregates - Part 1: Methods for sampling
EN 932-2, Tests for general properties of aggregates - Part 2: Methods for reducing laboratory samples
EN 933-2, Tests for geometrical properties of aggregates - Part 2: Determination of particle size distribution
- Test sieves, nominal size of apertures
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/ui
— IEC Electropedia: available at https://www.electropedia.org/
3.1
rocks
3.1.1
rock
natural solid substance composed of crystals or minerals
Note 1 to entry: The term also includes the relatively rare natural glasses. Rocks are classified into three categories
according to their origin: igneous, sedimentary and metamorphic.
5

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SIST EN 932-3:2022
EN 932-3:2022 (E)
3.1.2
igneous rock
rock crystallized from molten rock (magma) either at or below the earth's surface, with a nomenclature
which is based on the mineralogical composition
Note 1 to entry: Rocks formed below the earth’s surface can be divided into two classes, plutonic and hypabyssal.
Plutonic rocks are formed at depth in large bodies and typically have a coarse crystalline texture, with crystals
clearly visible to the naked eye. Hypabyssal rocks are formed in smaller bodies near, but not at, the earth's surface
and have usually a fine crystalline texture.
Note 2 to entry: Extrusive or volcanic rocks are formed as lavas and pyroclastics at the earth's surface and have a
very fine or glassy texture.
3.1.3
sedimentary rock
rock formed by solidification of sedimentary deposits, trough diagenesis and lithification
Note 1 to entry: Generally, sedimentary rocks are stratified and they are classified into the same categories as
sediment. Both sedimentary rocks and sediments form the sedimentary materials.
3.1.4
metamorphic rock
rock transformed from a pre-existing rock by fluids or heat (contact metamorphism) and pressure in the
earth's crust (burial metamorphism)
Note 1 to entry: Metamorphism changes the mineral content and composition and the microstructure of the pre-
existing rock, dominantly by solid state chemical reactions. Metamorphism is often associated with tectonic
processes and therefore, metamorphic rocks frequently have anisotropic textures.
3.2
sediment
natural deposit composed of unsolidified fragments of rocks or minerals
Note 1 to entry: Sediments are classified into three categories according to their origin: clastic or detrital, chemical
and biogenic. Clastic sediments are products of mechanical weathering (e.g. sand or gravel), chemical sediments are
products of chemical weathering (e.g. kaolin clay) and biogenic sediments are products of organisms (fossils,
microfossils, etc.).
3.3
laboratory sample
sample intended for laboratory testing
3.4
test portion
sample used as a whole in a single test
4 Reagent and apparatus
4.1 Test sieves, of nominal size of apertures conforming to EN 933-2, including at least the 4 mm sieve.
4.2 Hand lens.
4.3 Pen knife.
4.4 Stereoscopic microscope, with a magnification of typically 10× to 100×.
6

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SIST EN 932-3:2022
EN 932-3:2022 (E)
4.5 Polarizing microscope, optional.
4.6 Reagent, diluted hydrochloric acid.
NOTE Typically, limestone reacts with hydrochloric acid diluted to ~10 % and dolomite reacts with
hydrochloric acid diluted to ~20 %.
4.7 Magnet, optional.
5 Sampling and preparation of test portion
5.1 General
The laboratory sample shall be taken either from exposed faces of exploitation sites or drill cores, or from
stock piles for aggregates. In the case of aggregates, the sampling shall be carried out according to
EN 932-1.
5.2 Rock sample
The mass of the test portion for examination shall be not less than 5 kg.
5.3 Aggregates
The minimum mass of the laboratory sample depends on the aggregate size D and on the petrographic
heterogeneity of the aggregates.
Samples (laboratory sample and other samples) shall be reduced in accordance with the requirements of
EN 932-2 to produce the test portion. The size of the test portion should be representative of the material.
NOTE In the case of heterogeneous aggregates (when no single petrographic type or mineral is predominant,
the material is said to be “heterogeneous”), generally 150 particles are sufficient for the examination.
6 Test procedure
6.1 Description of a rock sample
6.1.1 Examination and description
First, examine the sample visually to determine the constituent rock or mineral types.
NOTE 1 It can be appropriate to wash the sample before examination.
Then, inspect each rock type carefully using a hand lens or a stereoscopic microscope and other
appropriate means.
Describe the sample and include the following:
a) grain size of the main constituents, texture, anisotropy, porosity, vesicularity (in volcanic rocks) and
colour;
b) main minerals that can be identified (quartz, feldspars, calcite, dolomite, etc.);
c) state of alteration and weathering.
NOTE 2 The description can also include comments on the presence, even in small quantities, of some
constituents which can be of concern in particular circumstances (suc
...

SLOVENSKI STANDARD
oSIST prEN 932-3:2020
01-november-2020
Preskusi splošnih lastnosti agregatov - 3. del: Postopek in izrazje
poenostavljenega petrografskega opisa
Tests for general properties of aggregates - Part 3: Procedure and terminology for
simplified petrographic description
Prüfverfahren für allgemeine Eigenschaften von Gesteinskörnungen - Teil 3:
Durchführung und Terminologie einer vereinfachten petrographischen Beschreibung
Essais pour déterminer les propriétés générales des granulats - Partie 3 : Procédure et
terminologie pour la description pétrographique simplifiée
Ta slovenski standard je istoveten z: prEN 932-3
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
oSIST prEN 932-3:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 932-3:2020

---------------------- Page: 2 ----------------------
oSIST prEN 932-3:2020


DRAFT
EUROPEAN STANDARD
prEN 932-3
NORME EUROPÉENNE

EUROPÄISCHE NORM

September 2020
ICS 91.100.15 Will supersede EN 932-3:1996
English Version

Tests for general properties of aggregates - Part 3:
Procedure and terminology for simplified petrographic
description
Essais pour déterminer les propriétés générales des Prüfverfahren für allgemeine Eigenschaften von
granulats - Partie 3 : Procédure et terminologie pour la Gesteinskörnungen - Teil 3: Durchführung und
description pétrographique simplifiée Terminologie einer vereinfachten petrographischen
Beschreibung
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 932-3:2020 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 932-3:2020
prEN 932-3:2020 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Reagent and apparatus . 5
5 Laboratory sample . 6
5.1 General . 6
5.2 Massive rock sample . 6
5.3 Unconsolidated rock sample . 6
5.4 Laboratory sample taken directly on aggregates . 6
6 Test procedure . 6
6.1 Description of a massive rock sample . 6
6.1.1 Examination and description . 6
6.1.2 Designation . 6
6.2 Description of an aggregate sample . 7
6.2.1 General . 7
6.2.2 Examination and description of test portion . 7
6.2.3 Designation . 7
7 Test report . 8
7.1 Required data . 8
7.2 Optional data . 8
Annex A (informative) Nomenclature . 9
A.1 General . 9
A.2 Igneous rocks . 9
A.3 Sedimentary rocks . 12
A.4 Metamorphic rocks . 13
A.5 Sediments or unconsolidated rocks . 14
A.6 Mineral ore. 14
Bibliography . 15

2

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oSIST prEN 932-3:2020
prEN 932-3:2020 (E)
European foreword
This document (prEN 932-3:2020) 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 932-3:1996.
In comparison with the previous edition, the following technical modifications have been made:
a) The Scope has been revised;
b) Clauses 3 Terms and definitions and 4 Reagent and apparatus have been extended;
c) Clauses 5, 6 and 7 have been revised with new title, structure and texts;
d) Test report has been revised;
e) Annex A has been updated;
f) The Foreword, Normative references and Bibliography have been partly updated.
This document forms part of a series of standards for general properties of aggregates. Test methods
for other properties of aggregates are covered by the following European Standards:
— EN 933 (all parts), Tests for geometrical properties of aggregates
— EN 1097 (all parts), Tests for mechanical and physical properties of aggregates
— EN 1367 (all parts), Tests for thermal and weathering properties of aggregates
— EN 1744 (all parts), Tests for chemical properties of aggregates
— EN 13179 (all parts), Tests for filler aggregate used in bituminous mixtures
The other parts of EN 932 include:
— Part 1: Methods for sampling
— Part 2: Methods for reducing laboratory samples
— Part 5: Common equipment and calibration
— Part 6: Definitions of repeatability and reproducibility
3

---------------------- Page: 5 ----------------------
oSIST prEN 932-3:2020
prEN 932-3:2020 (E)
1 Scope
This document specifies a basic procedure for the identification of the petrographic type of natural
aggregates. Precise petrographic identification, of technical mineralogy and petrography for civil
engineering or specific end uses, requires further examination and is therefore excluded from the scope
of this document.
NOTE 1 A qualified geologist (petrographer), with experience of materials used in civil engineering and aware
of the composition of the deposit, has sufficient skills to sample and name the rock.
NOTE 2 For precise petrographic identification, a non-exhaustive list of reference literature is given in the
Bibliography.
This document covers only natural aggregates. It is used to describe massive rocks and unconsolidated
rocks.
Annex A provides guidance on the petrographic nomenclature by giving definitions of simple
petrographic terms applicable to rock types used for aggregates.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 932-1, Tests for general properties of aggregates - Part 1: Methods for sampling
EN 933-1, Tests for geometrical properties of aggregates - Part 1: Determination of particle size
distribution - Sieving method
EN 933-2, Tests for geometrical properties of aggregates - Part 2: Determination of particle size
distribution - Test sieves, nominal size of apertures
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
massive rock
rock consisting of consolidated mineral phases. Massive rocks can be classified into three major
petrographic types, according to their origin: igneous, sedimentary and metamorphic
3.2
unconsolidated rock
rock consisting of individual particles, e.g. alluvial or natural lightweight rock. Unconsolidated rocks can
be classified into three major petrographic types, according to their origin: igneous, sedimentary and
metamorphic
4

---------------------- Page: 6 ----------------------
oSIST prEN 932-3:2020
prEN 932-3:2020 (E)
3.3
igneous rock
rock formed from molten rock (magma) either at or below the earth's surface. The latter can be divided
into two classes, plutonic and hypabbysal. Plutonic rocks are formed at depth in large bodies and
typically have a coarse crystalline texture, with crystals clearly visible to the naked eye. Hypabyssal
rocks are formed in smaller bodies near, but not at, the earth's surface and have usually a fine crystalline
texture. Extrusive or volcanic rocks are formed as lavas and pyroclastics at the earth's surface and have
a very fine or glassy texture
3.4
sedimentary rock
indurated rock formed at the earth's surface by the accumulation, or precipitation, of the products of
weathering and erosion of existing rocks. They can also be formed by the accumulation of organic debris.
Such accumulated material can remain unconsolidated or it can be lithified into rock. Sedimentary rocks
are usually layered
3.5
metamorphic rock
rock formed from pre-existing rocks by the action of heat and/or pressure in the earth's crust, which
has caused mineralogical and structural transformations. Metamorphic rocks frequently have
anisotropic texture
3.6
natural lightweight aggregate
3
or a loose bulk density not exceeding
aggregate with a particle density not exceeding 2000 kg/m
3
1200 kg/m
3.7
laboratory sample
sample intended for laboratory testing
3.8
test portion
sample used as a whole in a single test
3.9
gravel
an unconsolidated, natural accumulation of typically rounded rock particles resulting from erosion
The gravel particles are often rounded, (e.g. from alluvial deposits), but they can also be angular to sub-
rounded in shape (e.g. from moraine deposits)
4 Reagent and apparatus
4.1 Test sieve, 4 mm, conforming to EN 933-2
4.2 Handlens
4.3 Pen knife
4.4 Stereoscopic microscope, (magnification: typically 10X to 100X)
4.5 Polarizing microscope, optional
4.6 Reagent, diluted hydrochloric acid
5

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oSIST prEN 932-3:2020
prEN 932-3:2020 (E)
4.7 Magnet, optional
5 Laboratory sample
5.1 General
The laboratory sample shall be taken either from exposed faces of quarries or drill cores, or from stock
piles for aggregates.
5.2 Massive rock sample
In the case of a massive rock sample, the mass of a laboratory sample for the examination shall be not
less than 5 kg.
5.3 Unconsolidated rock sample
In the case of unconsolidated rock, the testing will be done on aggregates. The sampling of aggregates
shall be carried out according to EN 932-1.
5.4 Laboratory sample taken directly on aggregates
The minimum mass of the laboratory sample depends on the aggregate size D, and shall be determined
by sieving according to EN 933-1.
6 Test procedure
6.1 Description of a massive rock sample
6.1.1 Examination and description
First, examine the sample visually to determine the constituent rock or mineral types.
NOTE 1 It can be appropriate to wash the sample before examination.
Then, inspect each rock type carefully using a handlens or a stereoscopic microscope and other
appropriate means.
Describe the sample and include the following:
a) grain size of the main constituents, texture, anisotropy, porosity, vesicularity (in volcanic rocks) and
colour;
b) main minerals that can be identified (quartz, feldspars, calcite, dolomite, etc.);
c) state of alteration and weathering.
NOTE 2 The description can also include comments on the presence, even in small quantities, of some
constituents which can be of concern in particular circumstances (such as opal, micas or other phyllosilicates,
sulphates, iron sulphides and organic materials).
6.1.2 Designation
From the examination specified in 6.1.1, assign if poss
...

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