Nonvolatile ordinary temperature modified asphalt binder and nonvolatile ordinary temperature regenerated asphalt mixture using same

A nonvolatile cold modified asphalt binder comprising:

• A) 0.1 to 30 wt % of at least one petroleum asphalt selected from a straight asphalt or a blown asphalt;
• B) 0.1 to 30 wt % of at least one native asphalt selected from gilsonite, glance pitch, and grahamite;
• C) 0.1 to 15 wt % of a rubber-modified-compound (RMC) polymer modifier which is a vinyl aromatic hydrocarbon-conjugated diene block copolymer including at least one of a styrene-butadiene block copolymer (SBS), a styrene-isoprene block copolymer (SIS), and a styrene-ethylene-butylene block copolymer (SEBS);
• D) 20 to 50 wt % of at least one process oil selected from paraffin oil, naphthenic oil, aromatic oil, natural oil, and mineral oil;
• and
• (E) 0.5 to 30 wt % of at least one adhesive strength enhancer selected from rosin esters, modified acryls, modified silicones, polyvinyl esters, and silicone resins, wherein the nonvolatile cold modified asphalt binder is manufactured via steps of:
• a) preparing the petroleum asphalt and the native asphalt by heating to 160 to 170° C.;
• b) adding the rubber-modified-compound polymer modifier of C) to the heated petroleum asphalt and native asphalt and performing stirring in a batch plant at a temperature of 170 to 180° C. for three hours or more, thus manufacturing a modified asphalt;
• c) adding the adhesive strength enhancer to the modified asphalt and performing stirring at a temperature of 170 to 180° C. for one hour or more;
• d) adding the process oil to the modified asphalt containing the adhesive strength enhancer obtained during step c) and performing stirring at a temperature of 170 to 180° C. for one hour or more;
• and
• e) cooling a mixture after step d).