A New Method for Designing Dense Skeleton Asphalt Mixture Based on Meso Parameter

Table 10

Pavement performance of asphalt mixture.

Pavement performance	Test project	Test conditions	Evaluation parameter	Test results
				70# asphalt		UM rock asphalt		SBS-modified asphalt
High-temperature stability	Rutting test	60°C, 0.7 MPa	Dynamic stability (times·mm^−1)	2351		4515		4639
Water stability and low-temperature bending test	Immersed Marshall test	Before immersion (kN)	Residual stability (%)	12.63	82.7	16.2	87.1	16.7	85.6
		After immersion (kN)		10.44		14.1		14.3
	Freeze-thaw splitting test	No freeze-thaw (MPa)	Splitting strength ratio (%)	0.87	85.1	0.93	92.1	0.96	92.8
		After freeze-thaw (MPa)		0.74		0.85		0.89
	Seepage test	—	Seepage coefficient (mL·min^−1)	Impermeable		Impermeable		Impermeable