Fig. 8From: Atomistic-scale investigation of self-healing mechanism in Nano-silica modified asphalt through molecular dynamics simulationDensity of Asphalt Models at Different Aging Level and with Different Sized Nano-SiO2 on during 20 ns All-Atom MD Simulations: (a) Different Aging Levels, and (b) Different Sized Nano-SiO2Back to article page