Preparation of bio-oil and its application in asphalt modification and rejuvenation: A review of the properties, practical application and life cycle assessment

Biomass is an important product of bio-material pyrolysis, which can be used as an asphalt modifier or a rejuvenator for an aged asphalt binder. This paper synthetically reviews types of biomass, preparation and properties of bio-oils, preparation of bio-asphalt and the conventional, rheological, and chemical properties of bio-modified and bio-rejuvenated asphalts. Finally, the life cycle assessment was compared between the conventional asphalt...