Low-Temperature Performance and Evaluation Index of Gussasphalt for Steel Bridge Decks

Table 1

Technical indicators of GA.

Technical indicators	Test value		Standard [24]
	15% TLA	30% TLA
Penetration (25°C, 5 s, 100 g) (0.1 mm)	29.4	17	10∼40
Ductility (10°C) (cm)	22.0	12.4	≥10
Softening point (R&B) (°C)	86.0	90.2	≥72
Flash point (Cleveland open cup) (°C)	275	289	≥240
Density ρ15°C (g/cm^3)	1.110	1.121	≥1.00