Effects of Commercial Antioxidants on Aging Resistances of Asphalt Binders

Table 9

Effect of Irgafos168 on the functional group index of 4#.

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	0.0036	0.0043	0.0477	0.1820	0.0065	0.0064	0.1463	0.1790
1	0.0029	0.0043	0.0879	0.2306	0.0047	0.0070	0.1523	0.1966
5	0.0027	0.0050	0.0984	0.3244	0.0039	0.0074	0.1565	0.2593
10	0.0031	0.0040	0.1042	0.3476	0.0040	0.0046	0.162	0.3228