The consequences of asphalt pavement in a long tunnel under fire are much more serious than in open air conditions. Micropowder additives directly affect the characteristics of the asphalt binder, influencing the flammability and mechanical performance of asphalt mixtures. This research is aimed at studying the flammability performance of phosphorus slag (PS) powder as an additive for asphalt modification. Asphalt binders mixed with 0%, 5%, 6%, 8%, and 10% PS powder were produced, and conventional physical tests, rolling thin film oven (RTFO) a...
