ADDITIVE FOR A BITUMINOUS BINDER RESPECTIVELY A BITUMINOUS COMPOSITE MATERIAL

摘要

An additive for a bituminous binder respectively a bituminous composite material able to reduce bituminous binder respectively bituminous composite material viscosity when an alternating magnetic field is applied in particular for healing pavement cracks and in depth micro cracks in asphalt wherein the additive comprises an amount of magnetic iron oxide particles should be improved in order to reach bituminous composite material respectively a bituminous binder which can be melted in a faster and simplified way in particular usable for crack healing of asphalt structures on site. This is reached by forming the additive comprising at least a part of magnetic iron oxide nanoparticles with average sizes between 1 nm and 300 nm coated with a fatty acid.