Long-lasting emission reduction modified asphalt: preparation, pavement performances and emission reduction efficacy
研究制备了一种沥青减排改性剂（TAP）及其改性沥青，测试了其高低温流变性和疲劳性能，验证了不同掺量下的长期减排效果，发现20%掺量时施工期气固态污染物减排率均超55%，运营期均超45%。
To reduce the emission of asphalt fumes from asphalt pavements, an asphalt emission reduction modifier (TAP) and its modified asphalt were prepared. Its high and low-temperature rheological properties and medium-temperature fatigue resistance were analyzed and evaluated. The influence of different TAP dosages on the emission reduction efficacy of asphalt pollutants was explored. The long-term emission reduction efficacy of long-lasting emission reduction modified asphalt was verified. The emission reduction efficacy of TAP on asphalt VOCs was verified by HS-GC–MS test. This lays a solid foundation for further popularizing low-carbon asphalt in the transportation infrastructure field. The results show that TAP can effectively improve the high-temperature deformation resistance, low-temperature crack resistance, and fatigue resistance of asphalt. Long-lasting emission reduction modified asphalt with different TAP dosages all show significant emission reduction efficacy. Among them, when the TAP content is 20%, the emission reduction rates of gaseous and solid pollutants during the construction period both exceed 55%, and those during the operation period both exceed 45%. The long-term emission reduction efficacy of long-lasting emission reduction modified asphalt is remarkable. The coefficients of variation of the emission reduction rates of gaseous and solid pollutants in asphalt fume before and after long-term aging are both less than 4%.