Device for creating vibrations within the bulk of highway materials during their spreading and compaction.

摘要

The invention relates to a device making it possible to create vibrations within the bulk of the highway materials during spreading in order to facilitate their compaction. The device, mounted onto conventional spreading machines or special machines, consists either of vibrating rods 1, or of a vibrating plate placed at the bottom or within the thickness of the layer of the swelled material to be spread. The device may be connected in certain cases to a plate 3 in order to facilitate the flow of the materials. The vibrations of 1, and optionally 3, enable the aggregates to be more efficiently arranged and facilitate the subsequent compaction by conventional means of the spread layer. The layers produced by this method have a low density gradient in relation to the thickness, resulting in a better mechanical performance and a longer service life. IMAGE