Infrared Spectrum Analysis of Aged Asphalt Regenerated by Recycled Engine Oil Bottom

Table 1

Performance index of recycled engine oil bottom (REOB).

Index	REOB	Method
Appearance	Black viscous liquid	Visual test
Density (20°C, g/cm³)	0.9605	GB/T1884
Viscosity (60°C, Pa.s)	0.235	GB/T11137
Flash point (COC) (°C)	295	GB/T3536
Pour point (°C)	6	GB/T3535
Viscosity ratio before and after film oven test	2.4	GB/T11137
Quality loss before and after film oven test	3.0	GB/T0609