Multiscale Study on the Modification Mechanism of Red Mud Modified Asphalt

Table 2

Group absorption position and vibration type.

Wavenumber (cm^−1)	Functional group	Vibration type
3322	O-H	Stretching vibration
1445	C-C	In-plane deformation vibration
1035	S=O	Oxidation reaction
717	C-H	Vibration absorption peak