Method of producing an asphalt mixture having high skid...

Details Method of producing an asphalt mixture having high skid... Method of producing an asphalt mixture having high skid...

C - Chemistry, Metallurgy

08

L

6/169

C08L 95/00 (2006.01)

Patent

CA 1300818

Abstract of the Disclosure 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 ethylacrylate copolymer by an amount of 0.1 to 0.8% by weight relative to the whole mixture is added to the mixture prepared in that way and the mixture is then mixed further, resulting in a product having much less deformation rate than the conventional mixture containing rubber, olefin-based copolymer or the like being obtained. -20-

551571

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