Patent ID: 7581871

Claim:
A method for producing asphaltic product from aggregate, RAP, and liquid asphalt, said method comprising the steps of: introducing aggregate material interiorly of a first end of an inclined, horizontal rotating drum to flow generally from said first end to the second end of said drum and to successively pass through drying, combustion and first and second stage mixing zones of said drum; generating a hot gas stream within the combustion zone of said drum to flow through the drying zone of said drum to said first end in countercurrent relation to said aggregate material; adding RAP material directly to the combustion zone of said rotating drum to combine therein with said aggregate material; delivering said heated and dried aggregate and RAP material to the first stage mixing zone of said rotating drum; mixing said aggregate and RAP material with liquid asphalt within the first stage mixing zone to form an asphaltic composition.