Performance of nanomaterial modified asphalt as paving materials

The anomaterial organobentonite, nano-SiO2 and SBS at different dimensions and scales were used to modify base asphalt material. The processing methods of modified asphalt were applied according to the structural properties of different modifier. The general performance and unconventional performance indicators were used to assess the performance of modification. The general indicators contain penetration, softening point, ductility and brookfield viscosity as well. The unconventional indicators contain rutting factor, zero shear viscosity and flexural creep stiffness as well. The results show that the nanomaterial as modifiers can improve significantly the performance of asphalt binder as paving materials.