MEDIUM-LOW TEMPERATURE ASPHALT MODIFIER HAVING DEODORIZATION FUNCTION, ASPHALT MIXTURE PREPARED USING THE SAME, AND CONSTRUCTION METHOD THEREOF
Provided are a high-strength medium-low temperature asphalt modifier including: i) a styrenic thermoplastic elastomer powder which is frozen ground to 0.1 to 1 mm at a low temperature, wherein the styrenic thermoplastic elastomer is selected from a polystyrene-polybutadiene-polystyrene block copolymer (SBS), a styrene-butadiene rubber (SBR), a styreneisoprene-styrene block copolymer (SIS), a styrene-ethylenebutylene-styrene block copolymer (SEBS), and a styrenic thermoplastic elastomer (STE), ii) a high-boiling point process oil, iii) a rosin resin tackifier modified by an aliphatic hydrocarbon, iv) a polymer-silica nanocomposite, and v) an asphalt deodorant, an asphalt mixture prepared using the same, and a construction method thereof.