| 摘要 |
<p>A method of re-using cutted masses or crushed masses of old asphalt coverings indoors and outdoors by reactivating the cutted or crushed asphalt mass, whereby the old asphalt covering is cutted or broken up to a grain size of up to 100 mm or preferably 20-40 mm and in cold condition or heated up to 50 DEG C is mixed with 1-4 or preferably 2-3 % by weight of a bitumenous foam containing 0.1-10 or preferably 1-3 by weight of water and having a temperature of 110-250 DEG C or preferably 140-180 DEG C. Up to 30 % by weight as a maximum of the cutted mass or the crushed mass can be substituted by a stone material having a grain size of 10-30 mm for improving the grain structure of the asphalt mixture, and a slight amount of an adhesion agent and/or a plastic or cautchouc agent may be added. The binder of bitmuenous foam may contain bitumen, tar, and asphalt solution, a combination of bitumen and tar and/or plastic or a rubber modified binder or any equivalen other rock oil product. The invention also relates to an asphalt covering mass produced according to the above method.</p> |
