Regenerated asphalt additive composition for asphalt-paved or repair of road and method thereof

The present invention relates to a recycled asphalt concrete additive composition for road pavement and maintenance and a method for manufacturing the recycled asphalt concrete additive composition for road pavement and maintenance including 40 to 55 wt% of process oil produced from at least one type of naphthene-based raw oil selected from aroma oil, naphthene oil, and paraffin oil, 30 to 45 wt% of at least one type of recycled mineral oil selected from used car engine oil, ship oil, and insulating oil, and 15 to 25 wt% of at least one type of recycled vegetable oil selected from used cooking oil, olive oil, sunflower seed oil, and rosin. The present invention improves penetration, a softening point, viscosity, ductility, and the like after these fall below reference values during retrogradation, recovers hardened waste asphalt to its original state by melting, recovers the adhesive force and viscoelasticity of a binder lowered during the retrogradation, and allows additive absorbing power to increase with respect to the waste asphalt. Accordingly, the present invention enhances recovery properties and exerts a high level of adhesive force, enhances intercoupling with a finished recycled asphalt concrete product, adds to storage stability, and allows homogeneous product supply. As a result, the present invention allows high-purity recycled asphalt concrete to be supplied at a low price.