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

Table 3

Specifications of bitumen.

Parameter	PG64-16	PG58-22	Test method
Density in 25°C	1.02	1.03	ASTM D70-76
Degree of penetration at 25°C	68	91	ASTM D5-73
Softening point (°C)	51	48	ASTM D36-76
Ductility (25°C, 5 cm/min) (cm)	105	112	ASTM D113-79
Flash point (°C)	262	248	ASTM D92-78
Weight loss (%)	75	75	ASTM D1754-78
Purity (%)	99.5	99.5	ASDM D2042-76
Viscosity (Pa·s)	0.776	0.576	ASTM D2170
Rotational viscosity at 135°C (Pa·s)	0.305	0.260	ASTM D4402