Influence of Fiber Type on Low-Temperature Fracture Performance of Presawed Asphalt Mixture Beams

Table 2

Major technical indexes of asphalt.

Indicator		Quality indicators	Measured values
Penetration (25°C 100 g 5 s)		60–80	65
PI		−1.5 to +1.0	−1.1
Ductility (10°C 5 cm/min) (cm) ≥		20	42
Ductility (15°C 5 cm/min) (cm) ≥		100	>150
Softening point (°C) ≥		46	47.5
Dynamic viscosity (60°C) ≥		180	218
Wax content (distillation method) (%) ≥		2.2	1.8
Flash point (°C)		260	300
Solubility (%)		99.5	99.88
Density (15°C) (g/)		Measured	1.035
TFOT residue	Quality (%) ≤	0.8	−0.044
	Penetration ratio (25°C) (%) ≥	61	62.2
	Ductility (10°C) ≥	6	6.9