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oSIST prEN 17542-2:2020

(Main)

Earthworks - Geotechnical laboratory tests - Part 2: Fragmentability test standard

Earthworks - Geotechnical laboratory tests - Part 2: Fragmentability test standard

This document defines the principle and the methods for the determination of the "fragmentability coefficient" of rocky material.
The fragmentability coefficient IFR distinguishes the behaviour of certain rocky material and is used to show the change in particle size from the moment than the material is excavated through to its subsequent implementation and in certain cases during its whole service life. Changes in the particle size occur due to the structural resistance of the rock being unable to support the mechanical stress to which it is subjected during its implementation and use.

Erdarbeiten - Geotechnische Laborversuche - Teil 2: Prüfung der Zertrümmerbarkeit

Dieses Dokument definiert die Grundlagen und die Verfahren zur Bestimmung des "Zertrümmerbarkeits-koeffizienten" von Felsmaterial.
Der Zertrümmerbarkeitskoeffizient IFR unterscheidet das Verhalten bestimmter Felsmaterialien und wird verwendet, um die Änderungen der Korngröße ab dem Zeitpunkt des Lösens des Materials bis zum folgen-den Einbau und in bestimmten Fällen während der gesamten Einsatzdauer darzustellen. Veränderungen der Korngröße treten auf, da der Fels aufgrund seiner Strukturfestigkeit nicht die mechanische Belastung aushalten kann, der er während des Einbaus und der Verwendung ausgesetzt ist.

Terrassements - Essais géotechniques en laboratoire - Partie 2 : Essai de fragmentabilité

Le présent document définit le principe et les méthodes de détermination du « coefficient de fragmentabilité » d’un matériau rocheux.
Le coefficient de fragmentabilité IFR sert à distinguer le comportement de certains matériaux rocheux et est utilisé pour apprécier l’évolution de la granulométrie depuis l’extraction du matériau jusqu’à sa mise en oeuvre et, dans certains cas, pendant toute sa durée de vie. Des modifications de la granulométrie se produisent en raison de la résistance structurelle de la roche, qui est incapable de résister aux contraintes mécaniques auxquelles elle est soumise lors de sa mise en oeuvre et de son utilisation.

Zemeljska dela - Geotehnični laboratorijski preskusi - 2. del: Preskus drobljivosti

General Information

Status
Not Published
Public Enquiry End Date
19-Sep-2020
ICS
93.020 - Earthworks. Excavations. Foundation construction. Underground works
Technical Committee
ZEM - Zemeljska dela
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
28-Jul-2020
Due Date
15-Dec-2020
Completion Date
13-Oct-2020
Ref Project
prEN 17542-2 - Earthworks - Geotechnical laboratory tests - Part 2: Fragmentability test standard

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SLOVENSKI STANDARD
oSIST prEN 17542-2:2020
01-september-2020

Zemeljska dela - Geotehnični laboratorijski preskusi - 2. del: Preskus drobljivosti

Earthworks - Geotechnical laboratory tests - Part 2: Fragmentability test standard

Erdarbeiten - Geotechnische Laborversuche - Teil 2: Prüfung der Zertrümmerbarkeit

Terrassements - Essais géotechniques en laboratoire - Partie 2 : Essai de fragmentabilité

Ta slovenski standard je istoveten z: prEN 17542-2
ICS:
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
oSIST prEN 17542-2:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 17542-2:2020
---------------------- Page: 2 ----------------------
oSIST prEN 17542-2:2020
DRAFT
EUROPEAN STANDARD
prEN 17542-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2020
ICS 93.020
English Version
Earthworks - Geotechnical laboratory tests - Part 2:
Fragmentability test standard

Terrassements - Essais géotechniques en laboratoire - Erdarbeiten - Geotechnische Laborversuche - Teil 2:

Partie 2 : Essai de fragmentabilité Prüfung der Zertrümmerbarkeit

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 396.

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 17542-2:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 17542-2:2020
prEN 17542-2:2020 (E)
Contents Page

European foreword ...................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Symbols — Units .............................................................................................................................................. 5

5 Test principle ................................................................................................................................................... 5

6 Equipment end test material ...................................................................................................................... 6

7 Preparing samples .......................................................................................................................................... 6

8 Testing ................................................................................................................................................................ 6

9 Calculation and expression of results ..................................................................................................... 7

10 Test report ......................................................................................................................................................... 7

Annex A (informative) Test report – Fragmentability coefficient of rocky material (in

accordance with EN 17542-3) ...................................................................................................................... 8

---------------------- Page: 4 ----------------------
oSIST prEN 17542-2:2020
prEN 17542-2:2020 (E)
European foreword

This document (prEN 17542-2:2020) has been prepared by Technical Committee CEN/TC 396

“Earthworks”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
---------------------- Page: 5 ----------------------
oSIST prEN 17542-2:2020
prEN 17542-2:2020 (E)
Introduction

The fragmentability coefficient I is an identification parameter adopted in the classification of

materials for earthworks (EN 16907-2).
---------------------- Page: 6 ----------------------
oSIST prEN 17542-2:2020
prEN 17542-2:2020 (E)
1 Scope

This document defines the principle and the methods for the determination of the “fragmentability

coefficient” of rocky material.

The fragmentability coefficient I distinguishes the behaviour of certain rocky material and is used to

show the change in particle size from the moment than the material is excavated through to its

subsequent implementation and in certain cases during its whole service life. Changes in the particle

size occur due to the structural resistance of the rock being unable to support the mechanical stress to

which it is subjected during its implementation and use.
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 16907-2, Earthworks — Part 2: Classification of materials

EN ISO 17892-4, Geotechnical investigation and testing — Laboratory testing of soil — Part 4:

Determination of particle size distribution (ISO 17892-4)

ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth

ISO 3310-2, Test sieves
...

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