Abstract:
The present study was undertaken to address the influence of surfacetreated
Montmorillonite Nano Clay (MNC) on aging and temperature susceptibility
of base bitumen. This study used a control VG-30 grade bitumen as base binder with
different percentages ofMNCby weight of bitumen (3–6% at an increment of 0.5%).
Surface modification of MNC was done with Octadecyl amine and Aminopropyltriethoxysilane.
The binder’s aging susceptibility was characterized using different
aging indices determined based on conventional and performance parameters. The
outcome of the aging indices indicates a significant improvement in temperature and
aging resistance potential of base bitumen with the incorporation of NC. It can also
be stated that an increase in aging resistance can be effective in delaying the intermediate
temperature cracking of bitumen. The overall study inferred that the addition
of MNC can be considered to sustain bitumen’s oxidative aging.
