Mechanism and Rheological Properties of High-Modulus Asphalt

Table 1

Technical indexes of 70# asphalt and SBS-modified asphalt.

Test properties			70# asphalt		SBS-modified asphalt
			Test results	Technical index	Test results	Technical index
P25°C, 100 g, 5 s (0.1 mm)			61	60–80	55	40–60
TR&B (°C)			48.5	≥46	81	≥60
Ductility (cm)	5°C		—	—	34.4	≥20
	10°C		18.3	≥15	—	—
RTFOT (163°C, 85 min)	Mass loss (%)		0.092	±0.8	−0.047	±1.0
	Penetration ratio		72	≥61	80	≥65
	Ductility (cm)	5°C	—	—	22	≥15
		10°C	6.2	≥6	—	—