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  • BSI
    BS EN 1097-2:2020 Tests for mechanical and physical properties of aggregates - Methods for the determination of resistance to fragmentation
    Edition: 2020
    $500.66
    / user per year

Description of BS EN 1097-2:2020 2020

This document describes the reference method, the Los Angeles test, used for type testing and in case of dispute (and an alternative method, the impact test) for determining the resistance to fragmentation of coarse aggregates (main text) and aggregates for railway ballast (Annex A). For other purposes, in particular factory production control, other methods are possible provided that an appropriate working relationship with the reference method has been established.

This document applies to natural, manufactured or recycled aggregates used in building and civil engineering.

Annex A describes a method for the determination of resistance to fragmentation of aggregates for railway ballast.

Annex B gives alternative narrow range classifications for the Los Angeles test and the impact test.

Annex C contains construction, operation and safety requirements for the impact tester.

Annex D describes a method for checking of the impact tester.

Annex E gives precision data.

Annex F contains a worked example of calculation of impact value SZ.

Annex G gives an alternative narrow range classification for the Los Angeles test of 16/32 mm recycled aggregates.

Annex H proposes an additional sieve for the evaluation of the Los Angeles test for railway ballast.

Annex A is normative and Annexes B to H are informative.



Standard NumberBS EN 1097-2:2020
TitleTests for mechanical and physical properties of aggregates - Methods for the determination of resistance to fragmentation
StatusDefinitive
Publication Date2020-04-23
ReplacesBS EN 1097-2:2010
Identical National Standard OfEN 1097-2
DescriptorsCrushing, Natural aggregates, Drop tests, Strength of materials, Coarse aggregates, Hardness, Reproducibility, Synthetic aggregates, Classification systems, Aggregates, Hardness testing, Impact testing, Fragmentation tests, Cement and concrete technology, Mechanical properties of materials, Testing conditions, Physical properties of materials, Test specimens, Mechanical testing, Impact strength, Specimen preparation, Test equipment, Ballast (aggregates)
ICS91.100.15 Mineral materials and products
CommitteeB/502/6
ISBN978 0 580 51892 8
PublisherBSI
Pages46

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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