Characterization of Evotherm Warm Mix Binder - Petersen Asphalt ...

Before and After PAV
(a)
Unmodified
(b)
3% SBR Latex
100
100
T g =-16°C
T g =-11°C
T g =-23°C
T g =-18°C
0.4 Hz
Loss Moulus (G"), MPa
After
PAV
Loss Modulus (G"), MPa
After PAV
10
-30 -25 -20 -15 -10 -5 0 5
10
-30 -25 -20 -15 -10 -5 0 5
Temperature, °C
Temperature, °C
• 7°C reduction in T g with 3% SBR latex polymer
• 5°C increase in T g after PAV, both unmodified and modified residues
14