The Effect of Wetfix and Nanohydrated Lime Additives on Bitumen Aging and the Cohesion and Adhesion Failure Mechanisms of Hot Asphalt Mixtures

Table 2

Physical characteristics for both types of stone materials.

Test	Standard	Limestone		Granite		Specification
Specific gravity (coarse aggregates)	ASTM C 127
Bulk (g/cm^3)		2.612		2.654		–
SSD (g/cm^3)		2.643		2.667		–
Apparent (g/cm^3)		2.659		2.692		–
Specific gravity (fine aggregates)	ASTM C 128
Bulk density (g/cm^3)		2.618		2.659		–
SSD (g/cm^3)		2.633		2.661		–
Apparent (g/cm^3)		2.650		2.687		–
Specific gravity (filler)	ASTM D 854	2.641		2.657		–
Los Angeles abrasion (%)	ASTM C 131	25.6		19		Max 45
Flat and elongated particles (%)	ASTM D 4791	9.2		6.5		Max 10
Sodium sulfate soundness (%)	ASTM C 88	2.56		1.5		Max 10–20
Fine aggregates angularity (%)	ASTM C 1252	46.65		56.3		Min 40