Asphalt concrete is a widely consumed aggregate/binder mix used in paving. The global market for asphalt (bitumen) is over 100 million tonnes annually. Standard penetration grade bitumen is one of the widely used paving grades, essential in road construction. Standard penetration grade bitumen is added into asphalt concrete at around 5-7% concentration in the mix.
Turbostratic graphene, as a modifier in bitumen, offers the potential to improve elastic capacity, improve resistance to permanent deformation, increase resistance to crack propagation, increase water resistance and ultimately provide much higher durability