Evaluation of the Additives’ Behaviour to Determine the Best Modifier for Improving Asphalt Performance at High Temperature

Table 1

Physical properties of the base asphalt.

Test	Method	Quantity	Specification limits
Penetration at 25°C, 100 g, 5 s (0.1 mm)	ASTM D5	64	60–70
Ductility (25°C, 5 cm/min) (cm)	ASTM D113	150	Min 100
Kinematic viscosity at 135°C (Pa. s)	ASTM D2170	0.411	—
Softening point (R&B method) (°C)	ASTM D36	49	Min 46.0
Flash point (°C)	ASTM D92	317	—
Fire point (°C)	ASTM D92	331	—
Specific gravity at 25°C (g/cm^3)	ASTM D70	1.043	—
Loss on heat (%)	ASTM D-6	0.04	—
Dynamic viscosity at 60°C (Pa. s)	ASTM D2171	0.410	—