In order to improve the pavement performance and toughness of foam asphalt cold recycled mixture (FACRM), the effects of lignin fiber on the pavement performance of FACRM at 0%, 0.3%, 0.6% and 0.9% dosage (relative to foam asphalt cold recycled mixtures) were investigated. Through the high temperature rutting, semi-circular bending and freeze-thaw splitting tests, the influence of different fiber dosage on the performance of FACRM was investigated, and the microscopic morphology of the fiber on the FACRM damage interface was observed by scanning electron microscope (SEM). The results show that...
