Abstract:
Typically, asphalt pavements encounter two major types of distresses,
rutting and cracking. Rutting occurs mostly in early stage or immature age while
cracking occurs eventually after aging when the pavement becomes stiffer. Generally,
stiffer asphalt pavements have good rutting resistance and softer pavements have good
cracking resistance. It is important to achieve a balanced asphalt mixture having
both good rutting and cracking resistances. This study aims to evaluate the use of
two types of recycled materials, plastic waste and granulated crumb rubber, on the
rutting and cracking properties of asphalt. Penetration Grade 60/70 binder was used
as base binder, and for the control-mix. Different types of samples were prepared
with Marshall and gyratory compactors and the asphalt properties were determined
with respect to resilient modulus, cracking resistance and Hamburg wheel tracking
test, before and after simulated aging in the laboratory.
