| 摘要 |
<p>A method of preparing surfacing masses having a high pressure resistance and a high wear resistance, for instance masses suited as surfacings for streets and roads and comprising a ballast material of mineralic type, for instance a stone material, a fine grain polymer material and a fibre material included in the ballast material and a binder of bitumen type. A surfacing mass prepared according to the method. A combined fibre-polymer material for use in the surfacing mass. The preparation is made in that the ballast material is heated, in that a combined polymer-fibre material, which has been prepared in that a very fine grain polymer material and the fibre material have been brought to stick to each other's surfaces, is supplied and is mixed into the ballast material, and that the binder of bitumen material is heated to substantially the same temperature as that of the ballast material and is admixed thereby forming a final surfacing mass.</p> |
