Batch method of recycling asphaltic concrete

Details Batch method of recycling asphaltic concrete Batch method of recycling asphaltic concrete

1981-05-11

1983-06-14

Coe, Philip R.

Agitating

Mortar mixer type

Methods

366 7, 366 14, 366 25, 366 37, B28C 504, B28C 520

Patent

active

043879969

ABSTRACT:
A batch method of producing asphalt-aggregate composition having a temperature of at least about 200.degree. F. and at least about 20% used asphaltic concrete comprises heating solid particles of the used material in a first drum to a temperature of at least about 150.degree. F., separately heating virgin aggregate in a second drum to a temperature of less than about 400.degree. F., and mixing the two materials, preferably with the addition of hot liquid or paving grade asphalt. In a second embodiment, unheated used asphaltic concrete is mixed with heated used asphaltic concrete and heated virgin aggregate.

REFERENCES:
patent: 1703864 (1929-03-01), Arnold
patent: 3999743 (1976-12-01), Mendenhall
patent: 4075710 (1978-02-01), Jakob et al.
patent: 4096588 (1978-06-01), Mendenhall
patent: 4104736 (1978-08-01), Mendenhall
patent: 4147436 (1979-04-01), Garbelman et al.
patent: 4165184 (1979-08-01), Schlarmann
Construction Bulletin, Oct. 1, 1976, "Hot Mix Recycling Project is Nation's First Using Conventional Equipment".
Recycling Report, vol. 1, No. 1, May 27, 1977, "State of the Art: Hot Recycling".

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