WARM-MIX RECYCLED ASPHALT ADDITIVES COMPRISING FAT RESIDUE AND WARM-MIX RECYCLED ASPHALT MIXTURE COMPRISING THE SAME

摘要

PURPOSE: A medium temperature recycle asphalt additive is provided to prevent deterioration of brittleness or a low temperature property even if waste asphalt concrete and new ascon are mixed when ascon is produced by using oil sediments after extracting fatty acid from fats. CONSTITUTION: A medium temperature recycle asphalt additive contains oil sediments after extracting fatty acids from fats. The fats are one or more selected from vegetable oil, animal oil or synthesized oil. The fatty acid is one or more stearic acid, lauric acid, palmatin acid, myristic acid, oleic acid, linoleic acid, ricinoleic acid. Viscosity of the oil sediments is lower than 80 cps at 140 degreeC. The medium temperature recycle asphalt additive further includes 10-100.0 of a viscosity reducing agent per 100 parts by weight of the oil sediments. The medium temperature recycle asphalt mixture contains 2-15 weight% of the medium temperature recycle asphalt additivie which contains the oil sediments based on a total amount of the waste asphalt among the waste asphalt concrete.