Using Lightweight Materials to Enhance Thermal Resistance of Asphalt Mixture for Cooling Asphalt Pavement

Table 3

Physical properties of aggregates and fillers.

Mixture type	Basalt aggregate			SC		Limestone powder	FAC
	5–15 mm	3–5 mm	0–3 mm	3–5 mm	0–3 mm
Apparent specific density	2.633	2.641	2.543	1.378	1.385	2.788	0.413
Bulk specific density	2.599	2.586	2.586	1.267	1.251	NA	NA
Moisture absorption ratio (%)	0.49	0.81	3.33	6.42	8.61	NA	NA