Road Performance and Microscopic Mechanism Analysis of Modified Straw Fiber Asphalt Binder

Table 3

Physical properties of filler.

Parameter		Value	Technical requirements
Apparent density (t/m^3)		2.785	≮2.50
Particle size range (%)	<0.6 mm	100	100
	<0.15 mm	94.6	90–100
	<0.075 mm	85.3	75–100
Water content (%)		0.32	≯1
Hydrophilic coefficient (%)		0.43	<1
Appearance		No agglomerates	No agglomerates