Modified nonvolatile cold asphalt binder, recycled nonvolatile cold asphalt mixture containing the same, and method for repairing potholes and cracks using the same

A non-volatile room-temperature modified asphalt binder comprising:

• a) 0.1 to 30 wt % of petroleum asphalt selected from one or more of straight asphalt and blown asphalt;
• b) 0.1 to 30 wt % of natural asphalt selected from one or more of gilsonite, glance pitch, and grahamite;
• c) 0.1 to 15 wt % of rubber modification compound (RMC) polymer modifier, which is a vinyl aromatic hydrocarbon-conjugated diene block copolymer using one or more selected from styrene-butadiene block copolymer (SBS), styrene-isoprene block copolymer (SIS), and styrene-ethylene-butylene block copolymer (SEBS);
• d) 20 to 50 wt % of process oil selected from one or more of paraffin oil, naphthenic oil, aromatic oil, natural oil, and mineral oil;
• e) 0.5 to 30 wt % of adhesion enhancers selected from one of more of rosin ester-based, modified acrylic-based, modified silicone-based, polyvinyl ester-based, and silicone based resin;
• f) 2 to 5 wt % of crack inhibitors selected from one or more of polypropylene glycol and polyethylene glycol;
• g) 0.2 to 0.5 wt % of water-repellent additives selected from one or more of siloxane and silicone oil;
• h) 0.1 to 1 wt % of carboxymethyl cellulose having a carboxylation degree of 0.5 to 1 and a Brookfield viscosity of 3000 to 4000 cps at 25° C.;
• and
• i) 0.1 to 0.5 wt % of carbon nanotubes.