Effects of Commercial Antioxidants on Aging Resistances of Asphalt Binders

Table 4

Influence of matrix asphalt on three indexes before and after mixing and aging.

Name	Property	Before aging				After aging
		0	1	5	10	0	1	5	10
1#	Penetration (0.1 mm)	81	79	76	60	49	49	47	37
	Softening point (°C)	48.9	48.6	48.8	48.4	54.4	53.6	53.9	53.3
	Ductility (10 °C, cm)	39.0	44.8	33.6	—	6.6	7.9	7.2	—
2#	Penetration (0.1 mm)	81	77	80	87	49	49	53	56
	Softening point (°C)	48.9	48.8	48.2	48.0	54.4	54.1	53.0	52.3
	Ductility (10 °C, cm)	39.0	41.6	35.8	50.3	6.6	7.3	7.5	10.0
3#	Penetration (0.1 mm)	145	144	138	117	89	94	88	77
	Softening point (°C)	49.2	48.5	48.8	50.0	49.9	48.9	49.3	50.3
	Ductility (10 °C, cm)	150.0	150.0	142.5	117.1	52.7	53.1	52.6	44.3
4#	Penetration (0.1 mm)	145	145	141	142	89	97	101	98
	Softening point (°C)	49.2	49.0	48.4	48.3	49.9	49.6	48.7	48.5
	Ductility (10 °C, cm)	150.0	150.0	150.0	144.5	52.7	58.5	68.7	70.7