Moisture Susceptibility of Sustainable Warm Mix Asphalt

Table 2

Physical properties of aggregates.

Property	ASTM designation	Test results		SCRB specification
		VA	RCA
Coarse aggregate
1. Bulk specific gravity	C-127	2.632	2.331	—
2. Apparent specific gravity		2.636	2.501	—
3. Water absorption (%)		0.261	2.91	—
4. Percent wear by Los Angeles abrasion (%)	C-131	18	28	30 max
5. Soundness loss by sodium sulfate solution (%)	C-88	4.3	6.1	12 max
6. Fractured pieces (%)	D5821	97	100	90 min
Fine aggregate
1. Bulk specific gravity	C-128	2.561		—
2. Apparent specific gravity		2.622		—
3. Water absorption (%)		0.809		—
4. Sand equivalent (%)	D-2419	59		45 min
5. Clay lumps and friable particles (%)	C142	1.2		3 max