Design Optimization and Performance Evaluation of the Open-Graded Friction Course with Small Particle Size Aggregate

Table 2

The main technical indexes of high viscosity asphalt.

Items	Penetration (25°C, 0.1 mm)	Softening point (°C)	Ductility (5°C) (cm)	Flash point (COC) (°C)	Elastic recovery (25°C, 10 cm) (%)	Dynamic viscosity (60°C) (Pa.s)	TFOT (163°C, 5 h)
							Mass loss (%)	Penetration ratio (%)
Test value	62.8	87	37	290	91	191000	0.2	68