Establishment of Rutting Model of Wheel-Tracking Test for Real-Time Prediction of Rut Depth of Asphalt Layers

Table 1

Properties of asphalt for AC-13.

Item		Tested result	Requirement	Test method [25]
Penetration (25°C, 100 g, 5 s) (0.1 mm)		68	60 ∼ 80	T 0604
Penetration index		0.32	≥ − 0.4	T 0604
Ductility (5°C, 5 cm/min) (cm)		44	≥ 30	T 0605
Softening point (°C)		77.9	≥ 55	T 0606
Kinematical viscosity (135°C) (Pa s)		1.73	≤ 3	T 0625
Flashpoint (°C)		256	≥ 230	T 0611
Solubility in trichloroethylene (%)		99.64	≥ 99	T 0607
Elastic recovery (%)		85.8	≥ 65	T 0662
Density (25°C) (g/cm^3)		1.023	NA	T 0603
Storage stability (°C)		1.3	≤ 2.5	T 0661
Thin-film oven test (163°C)	Mass loss (%)	−0.04919	−1.0 ∼ 1.0	T 0609
	Residual penetration ratio (25°C) (%)	73.5	≥ 60	T 0604
	Residual ductility (5°C) (cm)	26.37	≥ 20	T 0605