WARM-MIX RECYCLING POLYMER MODIFIED ASPHALT MIXTURE WITH LOW CARBON EMISSION

摘要

PURPOSE: A low carbon warm-mix modified regeneration asphalt mixture comprises warm-mix modified asphalt and an asphalt recycling additive, thereby lowering a temperature under 30 deg C in a process. CONSTITUTION: A low carbon warm-mix regeneration modified asphalt mixture comprises the following: 2-8 wt% of warm-mix modified aspha and 0.1-3 wt% of a regeneration additive for warm-mix to 100 wt% of an aggregate mixture comprising 25-95 wt% of recycled aggregate, 4-74 wt% of new aggregate, and 1-6 wt% of filler. The warm-mix regeneration modified asphalt mixture is produced and used at 130-140 deg C. The warm-mix modified asphalt comprises the following: 75-95 wt% of straight asphalt having a penetration grade of 60-80; 0.5-5.0 wt% of an amine-based additive; and 4.5-20.0 wt% of a modifier. The modifier comprises the following: sulfur, paraffin wax, microwax, Styrene butadiene styrene (SBS), and tire powder. The regeneration additive for warm-mix comprises the following: 1.0-10 wt% of a vegetable oil-wax mixture; 75-98 wt% of an antioxidant-straight asphalt mixture; and 1-15 wt% of an adhesion promoter. The antioxidant is more than one among phenyl- -naphthylamine, aromatic amines, and hydroquinone.