C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 95/00 (2006.01) C08J 3/20 (2006.01) C08K 3/36 (2006.01) E01C 7/18 (2006.01)
Patent
CA 2636568
Apparatus and a process for producing cold asphalt for road repair and construction that allows cold asphalt to be easily produced at or near the job site. The apparatus includes at least two hoppers for receiving granular and screened particulates, a live feed for additive oil, and another for optional lime, conveyors in which to convey the granular and screened particulars, oil, and optional lime to a mixer. The mixer is controlled through a controller that is programmed to determine the correct proportion of RAP (recycled asphalt and a small amount of new asphalt), sand (silicates and/or sieved RAP), additive hydrocarbon oil, and optional lime (limestone powder). The apparatus may be permanently installed to create a cold asphalt manufacturing plant or placed on a trailer for use at a construction site. The invention further includes a method of manufacturing cold asphalt through the introduction of RAP, sand, and additive oil, and optional lime into the apparatus and a product-by-process in which cold asphalt mix is produced through the process claimed in the method. The end product is essentially non toxic with little to no VOCs and HAPs, has long shelf-life, and is produced, stored, used, and compacted at ambient temperature.
Ackerman John T.
Oyen Wiggs Green & Mutala Llp
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