A New Method for Designing Dense Skeleton Asphalt Mixture Based on Meso Parameter

Table 4

Properties of asphalt.

Test indicators	Test result
	70# asphalt	UM rock asphalt	SBS-modified asphalt
Penetration (25°C, 100 g, 5 s)/0.1 mm	66	63	62
Ductility (5 cm/min, 15°C) (cm)	135	138	147
Softening point (°C)	50.0	70	79.0
Density (15°C) (g/cm^3)	1.058	1.043	1.033