Method of producing an asphalt mixture having high skid resistance

Abstract From the Canadian patent

Heated aggregate containing nickel slag by amount more than 25% by weight relative to the whole aggregate and filler having a room temperature are introduced into a mixer, the thus introduced materials of aggregate and filler are dry mixed in the mixer, asphalt by an amount of 3.5 to 9.5% by weight relative to the whole mixture is added to the latter and the thus prepared mixture is wet mixed in the mixer whereby a product having higher skid resistance than the conventional asphalt mixture is obtainable. To practice the method of the invention the asphalt used therefor is heated to such an extent that it has viscosity in the range of 150 to 300 centistokes. Further powder of ethylene …