Preparation of asphalt concrete with organic contaminated soil

Details Preparation of asphalt concrete with organic contaminated soil Preparation of asphalt concrete with organic contaminated soil

1992-10-15

1994-08-23

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106671, 106277, 1062811, 404 17, 404 79, C04B 2626

Patent

active

053403967

ABSTRACT:
A method for the preparation of asphalt concrete from organic contaminated soils such as petroleum contaminated soils in batch mix processing, with reduced levels of pollution emissions. The resultant asphalt concrete is also either strengthened or the asphalt content can be reduced without loss of strength. The contaminated soil is added to superheated aggregate (380.degree.-450.degree. F.) in a closed mixer, in amounts ranging from 5-25% by weight of total aggregate, and the combination is mixed to uniformity, prior to addition of the asphalt cement binder. A conveying system for the cold wet contaminated soil is also described.

REFERENCES:
patent: 4025057 (1977-05-01), Shearer
patent: 4153471 (1979-05-01), Mendenhall
patent: 4245915 (1981-01-01), Bracegirdle
patent: 4898472 (1990-02-01), Sasaki
patent: 4921730 (1990-05-01), Sasaki

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