Prediction of Low-Temperature Rheological Properties of SBS Modified Asphalt

Table 1

Test parameters and their indexes of matrix asphalt.

Type	Index
	PG-grade	Stiffness modulus (−18°C) (MPa)	m-value (−18°C) (MPa · s^−1)	Asphaltenes (%)	Colloids (%)	Aromatics (%)	Saturates (%)
SK 90	58-22	270–275	0.295–0.300	8.73–8.78	19.35–19.40	46.65–46.70	25.20–25.24
Shell 90	58-22	325–320	0.270–0.274	8.10–8.14	33.17–33.21	35.55–35.59	23.08–23.13
Kunlun 90	58-22	270–275	0.292–0.295	10.54–10.57	30.14–30.17	39.80–39.83	19.19–19.22
Zhenhai 90	58-22	265–269	0.288–0.293	7.24–7.28	30.08–30.12	39.62–39.65	23.00–23.03
Esso 70	58-16	311–315	0.190–0.195	15.50–15.52	20.14–20.17	44.20–44.26	20.09–20.13