| 摘要 |
<p>Compsn consists of a bituminous binder, polymeric additives and minerals with an unusually high binder content for the grain structure, the polymeric additive consisting of one component which is insol. and one which is sol. in the binder. This compsn has improved resistance to traffic wear and tear, esp in winter. The amt. of polymeric additive used is 1-6, pref. 2-4 wt. % w.r.t. mineral/binder mixt of which 10-50 pref. 20-50 wt.% is bitumen- or tar-sol type.</p> |
