Method for recycling asphaltic concrete

Details Method for recycling asphaltic concrete Method for recycling asphaltic concrete

1981-08-17

1984-11-06

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

366 4, 366 25, B28C 546, C08L 9500

Patent

active

044810393

ABSTRACT:
An improved process for recycling asphaltic concrete comprises introducing asphaltic concrete particles at one end of an elongated rotating drum while supplying flame and hot gases of combustion to the drum at the opposite end, and introducing virgin aggregate into the drum intermediate the two ends. The asphaltic concrete is heated as it travels along a portion of the length of the drum and is recovered just prior to reaching the position along the drum length at which the aggregate is introduced. The aggregate is heated as it travels toward the end of the drum at which the flame and hot gases are introduced. Heated aggregate may be returned to the drum for further heating, and may be directed to the opposite drum end and mixed with the asphaltic concrete in a section of the drum.

REFERENCES:
patent: 1774649 (1930-09-01), Hepburn et al.
patent: 3614071 (1971-10-01), Brock
patent: 3845941 (1974-11-01), Mendenhall
patent: 3999743 (1976-12-01), Mendenhall
patent: 4075710 (1978-02-01), Jakob
patent: 4147436 (1979-04-01), Garbelman
patent: 4182631 (1980-01-01), Mendenhall
patent: 4189238 (1980-02-01), Mendenhall
patent: 4215941 (1980-08-01), Mendenhall
patent: 4309113 (1982-01-01), Mendenhall
patent: 4318619 (1982-03-01), Schlarman
patent: 4332478 (1982-06-01), Binz
NAPA Action News, Jul. 16, 1976.

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