Road Performance of Calcium Sulfate Whisker and Polyester Fiber Composite-Modified Asphalt Mixture

Table 1

Technical indexes of A road asphalt.

Parameter	Results	Standard in China (JTG E20-2011)
Penetration (0.1 mm)	66	60–80
Softening point (°C)	48	≥46
15°C ductility (cm)	>150	≥100
10°C ductility (cm)	32	≥20
Wax content (%)	1.8	≤2.2
Flash point (°C)	342	≥260
Solubility (trichloroethylene) (%)	99.96	≥99.5
After subjecting to aging in a thin-film oven (TFOT) (163°C 5 h)
Loss in weigh (%)	0.2	≤0.6
Penetration ratio (%)	68	≥65
Ductility (cm) (5 cm/min, 10°C)	7	≥6