US Patent 9745472 Asphalt recycling method

An asphalt paving mixture comprising aggregate; liquid asphalt; recycled asphalt material in an amount greater than 10% by weight of said mixture; and an amount from about 0.5% to about 20%, by weight of said liquid asphalt of a recycled asphalt pavement rejuvenating additive, said additive comprising a mixture of amine and glycol is used to form pavement. Incorporation of the recycled asphalt pavement rejuvenating additive permits higher amounts of recycled asphalt material in the mixture to be used to form pavement.