| 摘要 |
Bituminous roadbuilding material obtained by impregnating, coating or contacting an aggregate, a recycling material, a coated aggregate or a mixture of these products with a bituminous emulsion (E), characterized in that the bitumen particles of the bituminous emulsion (E) used for the impregnating, coating or contacting comprise a fraction (F) representing 10 to 40% of the bitumen particles and having a median diameter of less than or equal to 0.6 mum, preferably of between 0.1 mum and 0.6 mum, the remainder of the bitumen particles of the emulsion having a median diameter of greater than or equal to 1 mum, preferably of between 1 and 20 mum. The material is advantageously composed of cold mixes or of emulsion-stabilized gravel.
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