Moisture Stability of Hard Sandstone Asphalt Mixture Based on APT with MMLS3

Table 1

Properties of coarse aggregate.

Properties		Unit	Requirements	Results
Crushing value		%	≤26	23.4
Los Angeles abrasion		%	≤28	25.0
Bulk relative density	5–10 mm	—	≥2.60	2.715
	10–15 mm			2.714
Water absorption	5–10 mm	%	≤2.0	0.45
	10–15 mm			0.43
Flat and elongated particles (%)	>9.5	%	≤12	11.1
	<9.5		≤18	12.8
Washing method <0.075 mm		%	<1	0.9
Durability/soundness		%	≤12	6