Evaluation of the Physical Performance and Working Mechanism of Asphalt Containing a Surfactant Warm Mix Additive

Table 1

Physical properties and chemical compositions of base asphalt.

Properties	Specifications	Measured values
Penetration (25°C, 0.1 mm)	T0604	70
Penetration index PI	T0604	−1.15
Softening point (R&B,°C)	T0606	48.6
Ductility (15°C, cm)	T0605	>100
Kinematic viscosity (135°C, Pa∙s)	T0625	0.483
Density (15°C, g∙cm^−3)	T0603	1.029
Saturates/wt.%	SH/T 0509	20.46
Aromatics/wt.%		38.65
Resins/wt.%		27.56
Asphaltenes/wt.%		13.33