Once upon a time bitumen was bitumen. Not anymore. Kristina Smith reports on why the chemistry of bitumen is more important than ever to the performance of pavements.
A raft of global pressures is driving developments in the materials and equipment we use for the handling, storage and treatment of bitumen. The goal is to achieve better performance and longer life for less financial outlay, and at the same time overcome the challenges of inconsistent and varying bitumen supplies. Kristina Smith reports.