Investigation of the Road Performance of AH-30 Bitumen and Its Mixture: Comparison with AH-70 and SBS-Modified Bitumen

Table 2

Technical properties of asphalt.

Test item	AH-30	Technica requirements	SBS	Technical requirements	AH-70	Technical requirements	Test method
Penetration (25°C, 100 g, 5 s, 0.1 mm)	26	20∼40	56	30∼60	65	60∼80	T0604
Ductility: 5 cm/min, 5/15°C (cm)	43	≥50	34 (5°C)	≥20	113	≥100	T0605
Softening point, ring ball (°C)	60	≥55	79	≥60	50	≥46	T0606
Penetration index	−0.991	−1.5∼+1.0	0.533	≥0	−0.476	−1.5∼+1.0	T0604
Viscosity at 60°C (Pa·s)	1626	≥260	2.31 (135°C)	≤3	224	≥180	T0620
Paraffin content (%)	0.6	≤2.2	—	—	1.2	≤2.2	T0615
Solubility (%)	99.7	≥99.5	99.92	≥99	99.8	≥99.5	T0607
Flash point (°C)	296	≥260	267	≥230	330	≥260	T0611
Density at 15°C (g/cm^3)	1.022	Actual test results	1.032	Actual test results	1.012	Actual test results	T0603
After rolling thin-film oven short-term aging test (163°C, 5 h)
Mass loss (%)	0.0	≤±0.8	0.1	≤±1.0	−0.026	≤±0.8	T0610
Residual penetration ratio (%)	85	≥65	73	≥65	63	≥61	T0604
Residual ductility at 10°C (cm)	—	—	16 (5°C)	≥15	7	≥6	T0605