Effect of Multiple-Walled Carbon Nanotubes (MWCNTs) on Asphalt Binder Rheological Properties and Performance

Table 4

Physical properties of (MWCNTs).

Purity	Inner diameter	Outer diameter	Length	Surface area	Bulk density	Appearance
90%	5–10 nm	10–30 nm	10–30 µm	>200 m^2/g	0.06 g/cm^3	Black powder