Figure 7.
Complex modulus and phase angle of modified bitumen with NPs after (a) 6 days of UV aging and (b) after 12 days of UV aging.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.