Rheological properties of nanoclay as new nanotechnology of apshalt concrete: review

Abstract

This paper aim to review literature of applies nanoclay to asphalt in order to improve asphalt concrete pavement. Nowadays, nanotechnology is one of a new creation that has been applied in most area. One of them is in asphalt concrete pavement where engineer and researcher use nanoclay for asphalt modification. The fundamental material characterization testing i.e. penetration, softening point and Dynamic Shear Rheometer was performed on conventional and modified asphalt. In addition, the Marshall Stability and ductility were examined. In previous study, asphalt type 60/70 PEN with the percentage of nanoclay were added were 2%, 4%, 6% and 8% by weight of asphalt. According to previous research they were proved that nanoclay as modified asphalt increase in softening point; kinematics viscosity and decrease in binder penetration. The overall performance of nanoclay as modified asphalt binder is improved in terms of rutting and fatigue cracking resistance. The best improvement in the modified asphalt binders were obtained with 6% nanoclay.