Preparation and Performance Analysis of High-Viscosity and Elastic Recovery Modified Asphalt Binder

Table 1

Testing results of basic properties of AH-70 neat asphalt.

Test item		Unit	Value	Test item		Unit	Value
Penetration (25°C, 100 g, 5 s)		0.1 mm	68	Viscosity at 135°C		Pa·s	1.40
Softening point (ring & ball)		°C	47.1	Viscosity at 165°C		Pa·s	0.34
Ductility (15°C, 5 m/min)		cm	120	Density at 25 °C		g/cm^3	1.037
Ductility (10°C, 5 m/min)		cm	69.8	Four components	Asphaltenes	%	9.7
Dynamic viscosity at 60°C		Pa·s	298		Saturates	%	19.6
Flash point (open cup)		°C	269		Aromatics	%	40.0
Solubility (trichloroethylene)		%	99.94		Resins	%	30.7
Residue after RTFOT (163°C, 85 min)	Mass loss	%	−0.02	Ductility (15°C, 5 m/min)		cm	71.3
	Penetration	0.1 mm	34	Ductility (10°C, 5 m/min)		cm	8.2
	Softening point	°C	54.4	Dynamic viscosity at 60°C		Pa·s	563.8