Patent ID: 9150728
Filing Date: 2015-10-06
Classification: C08L,E01C

Abstract:
1. A method of manufacturing discoloration-resistant colored regenerated asphalt concrete using recycled aggregate from waste asphalt concrete, comprising: subjecting waste asphalt concrete to grinding to less than 13 mm and heating to 130° C. to 150° C.; mixing the ground waste asphalt concrete, a resin oil composition containing an antioxidant, a pigment and a UV blocker to obtain a waste asphalt concrete mixture, the resin oil composition is used in an amount of 5 wt % to 30 wt %, the pigment is used in an amount of 0.5 wt % to 3 wt %, and the UV blocker is used in an amount of 0.5 wt % to 5 wt %, and the antioxidant is phenyl-beta-naphthylamine, and the resin oil composition comprises 35 wt % to 70 wt % of Vacuum High boiling point Gas Oil (VHGO), 20 wt % to 40 wt % of aromatic base oil, 10 wt % to 30 wt % of paraffin base oil, and 0.3 wt % to 1 wt % of the antioxidant; and mixing the waste asphalt concrete mixture with 30 wt % to 70 wt % of a novel asphalt concrete mixture based on a total weight thereof, wherein the novel asphalt concrete mixture is composed of 50 wt % of aggregate having a size of 8 mm or less, 38 wt % of aggregate having a size of 8-13 mm, 5-8 wt % of asphalt, and 4-7 wt % of a filler.