Effects of Commercial Antioxidants on Aging Resistances of Asphalt Binders

Table 8

Effect of Irgafos 168 on the functional group index of 2#.

Content/%	Before aging				After aging
	I C=O	I S=O	I Ar	I B	I C=O	I S=O	I Ar	I B
0	0.0055	0.0075	0.0372	0.2106	0.0155	0.0171	0.0561	0.2062
1	0.0034	0.0072	0.0516	0.2306	0.0075	0.0068	0.0747	0.1963
5	0.0037	0.0080	0.0577	0.3081	0.0055	0.0106	0.0808	0.1771
10	0.0028	0.0082	0.0731	0.3272	0.0033	0.0085	0.0962	0.1886