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EN 12697-31:2004

Bituminous mixtures - Test methods for hot mix asphalt - Part 31: Specimen preparation by gyratory compactor

Aug 30, 2005

General information

99.60 Withdrawal effective   Apr 4, 2007

CEN

CEN/TC 227 Road materials

European Norm

93.080.20   Road construction materials

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Scope

This European Standard specifies the method for compaction of cylindrical specimens of bituminous mixtures using a gyratory compactor. Such compaction is achieved by combining a rotary shearing action and a vertical resultant force applied by a mechanical head.
The method can be used for
a) determination of the air voids content of a mixture for a given number of gyrations;
b) derivation of a curve density versus number of gyrations;
c) preparation of specimens of given height at a predetermined density, for subsequent testing of their mechanical properties.
For purposes a) and b), the performance based procedure of the annex A specifies a calibration chain so that the result of the test should be independent from the used type of gyratory compactor.
For purpose c), compliance with annex A may be not necessary.
This European Standard applies to bituminous mixtures (both those made up in laboratory and those resulting from work site sampling), with an upper aggregate size not larger than 31,5 mm.

Related directives

Directives related to this standards.

89/106/EEC

Construction products

305/2011

Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec

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EN 12697-31:2004
99.60 Withdrawal effective
Apr 4, 2007