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

Table 2

Technical index of coarse aggregate.

Technical indicators	Test value			Standard [24]
	2.36∼4.75 mm	4.75∼9.5 mm	9.5∼13.2 mm
Apparent density (g/cm^3)	2.870	2.877	2.890	≥2.60
Bulk volume density (g/cm^3)	2.838	2.870	2.880	—
Crushing value of stone (%)	—	—	10.9	≤26
Abrasion value (%)	—	11.9	11.9	≤28
Water absorption (%)	0.40	0.50	0.96	≤2.0
Sturdiness (%)	3.23	1.12	2.4	≤12
Needle and plate particle content (%)	—	2.64	3.1	≤15
Water washing method <0.075 mm particle content (%)	0.3	0.4	0.3	≤1
Soft rock content (%)	—	0.31	0.7	≤3