Assessing Mechanical Properties of Hot Mix Asphalt with Wire Wool Fibers

Table 1

Physical properties of the used asphalt cement.

Property	Value	AASHTO specifications for 60/70 penetration asphalt
		Minimum	Maximum
Penetration (0.1 mm)	66	60	70
Flash point (°C)	320	232	—
Ductility at 25°C (cm)	134	100	—
Specific gravity at 25°C	1.032	1.01	1.06
Softening point (°C)	53	48	56
Penetration of residue (% of original)	66	54	—
Weight loss on heating (%)	0.58		0.8