prEN 1097-1

Tests for mechanical and physical properties of aggregates - Part 1: Determination of the resistance to wear (micro-Deval)

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prEN 1097-1
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This document specifies the reference method used for type testing and in case of dispute, for determining the resistance to wear of coarse aggregates (main text) and aggregates for railway ballast (Annex A). Other methods can be used for other purposes, such as factory production control, provided that an appropriate working relationship with the relevant reference method has been established. This document applies to natural, manufactured or recycled aggregates. The reference test is performed with the addition of water. Annex B gives details of how the test can be performed without the addition of water. Annex C specifies the test performed with alternative narrow size fractions. Annexes D and E specify methods for determining the wear of fine aggregates. Precision data are given in Annex F. Annex A is normative and Annexes B, C, D, E and F are informative. WARNING – The use of this part of EN 1097 can involve hazardous materials, operations and equipment (such as dust, noise and heavy lifts). It does not purport to address all of the safety or environmental problems associated with its use. It is the responsibility of users of this document to take appropriate measures to ensure the safety and health of personnel and the environment prior to application of this document, and fulfil statutory and regulatory requirements for this purpose.
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