Feasibility Evaluation of a Long-Life Asphalt Pavement for Steel Bridge Deck

Table 2

Technique indices of EA, SBS, and the aggregate.

Materials	Technical indices	Criteria [16]	Measured value
EA	Tension strength (MPa)	≥1.5	3.26
	Elongation at break (%)	≥200	243
SBS	Penetration ratio (25°C, 100 g, 5 s), 0.1 mm	50∼70	68
	Softening point (R&B) (°C)	≥70	85
	Ductility (5°C, 50 mm/min) (cm)	≥30	37
	Brookfield viscosity (135°C) (Pa·s)	≤3.00	2.77
	Elastic restitution (25°C, 10 cm, 30 min) (%)	≥85.0	95.2
Aggregate	Wear value (%)	≤22.0	11.5
	Crushing value (%)	≤12	8.9
	Adhesion level	≥4	4
	Soundness (%)	≤5	0.7