Research Article

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

Table 1

Technical indexes of A road asphalt.

ParameterResultsStandard in China (JTG E20-2011)

Penetration (0.1 mm)6660–80
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