Evaluation of the potential use of waste sunflower and rapeseed oils-modified natural bitumen as binders for asphalt pavement design

摘要

Bitumen is the common binder for road building processes. It consists of about 5% of the asphalt concrete mass but provides the major viscoelastic properties needed for the good behavior of the pavement structure. The mechanical performance and the durability, in terms of aging of the asphalt concrete, depend on the choice of the binder and the time evolution of its properties. So, the choice of the binder is of prime interest to guarantee a minimum performance of the pavement structure.