Asphalt pavement recycling method and compositions
OwnerGary Helfinventor
Life of this patent
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Abstract
A method of heating old asphalt grindings for reuse, which is indirect and uses a screw dryer for the process. Granulated old asphalt is mixed with a composition comprising from about 60% to 96% by weight of asphalt, and from about 4% to 40% by weight of a terpenoid liquid.
Claims18
A method of heating asphalt concrete grindings for reuse, wherein the grindings are indirectly heated using a screw dryer and mixed with asphalt and terpenoid liquid to form an asphalt concrete mixture.
A composition comprising from about 60% to 96% by weight of asphalt concrete grindings, and from about 4% to 40% by weight of a terpenoid liquid.
A method of processing asphalt concrete grindings for reuse, wherein the grindings are indirectly heated and agitated using a screw dryer to break up any glued together pieces of aggregate.
Dependencies are inferred from the claim text.