Method of producing a recycled asphalt mixture

Details Method of producing a recycled asphalt mixture Method of producing a recycled asphalt mixture

1988-04-25

1990-05-01

Childs, Sadie

Coating processes

Coating pavement or the earth

Asphalt, bitumen, oil, or tar containing coating

1062811, 427215, 427403, B05D 510, E01C 512

Patent

active

049217305

ABSTRACT:
Disclosed are a method of and an apparatus for producing a heated recyled asphalt mixture, in which a new material and a normal-temperature waste material, the water content of which is set at a limited range of values, are adapted to be mixed together in the ratio of (90 to 40):(10 to 60) in terms of weight. The temperature of heating the new material by means of a dryer is controlled to range from 190.degree. C. to 350.degree. C. so as to be in conformity with the above mixing weight ratio. Both the materials are mixed and kneaded together in a mixer at a kneading temperature of 150.degree. C. or more. The gas generated within the mixer is exhausted toward a chimney in a state wherein the amount exhausted is made adjustable.

REFERENCES:
patent: Re30685 (1981-07-01), Mendenhall
patent: Re31905 (1985-06-01), Mendenhall
patent: 1991319 (1935-02-01), Finley
patent: 2572068 (1951-10-01), Sommer
patent: 3513005 (1970-05-01), Bradshaw et al.
patent: 4000000 (1976-12-01), Mendenhall
patent: 4177080 (1979-12-01), Mendenhall

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