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%.
Yuan et al. (Mon,) studied this question.