Method and apparatus for recycling roofing shingles as an additi

Details Method and apparatus for recycling roofing shingles as an additi Method and apparatus for recycling roofing shingles as an additi

1986-07-07

1987-11-17

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With heating or cooling of material

241 34, 241 65, 241101B, 366 18, B02C 1912

Patent

active

047068930

ABSTRACT:
A method and apparatus for recycling asphalt shingles in an asphalt plant which heats and dries aggregate and mixes the heated and dried aggregate with liquid asphalt to form an asphalt paving composition. The shingles are comminuted to particles of a size which can be easily flowed and metered, and the shingle particles are introduced into the asphalt plant such that they are heated to melt the asphalt in the shingle particles. The aggregate, heated shingle particles, and liquid asphalt are thoroughly mixed to form an asphalt paving composition.

REFERENCES:
patent: 3825192 (1974-07-01), Knight
patent: 4210290 (1980-07-01), Andersson et al.
patent: 4325641 (1982-04-01), Babus et al.
patent: 4627577 (1986-12-01), Hyuga et al.

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