| 摘要 |
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 DEG -450 DEG 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.
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