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Homepage>BS EN 12697-7:2022 Bituminous mixtures. Test methods Determination of the bulk density of bituminous specimens by gamma rays

BS EN 12697-7:2022

Bituminous mixtures. Test methods Determination of the bulk density of bituminous specimens by gamma rays

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Označení normy:	BS EN 12697-7:2022
Počet stran:	14
Vydáno:	2022-03-11
ISBN:	978 0 539 15309 5
Status:	Standard

DESCRIPTION

BS EN 12697-7:2022

This standard BS EN 12697-7:2022 Bituminous mixtures. Test methods is classified in these ICS categories:

93.080.20 Road construction materials

This document specifies a method for measuring the bulk density of pavement mixtures using a transmission-type gamma radiation test bench. This method applies to cylindrical specimens or parallelepipedal blocks, prepared in a laboratory or cut from a pavement. The thickness and the mass absorption coefficient, which is a function of the chemical composition, are known. The thickness of the specimen body traversed by the radiation is between 30 mm and 300 mm. The method cannot be applied to materials containing slags, with variable metal content or chemical composition. NOTE Material containing metal or chemical compositions can affect the absorption of gamma rays.

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