Determination and Monitoring of Key Construction Control Indices for Low-Temperature Performance of Asphalt Mixtures Based on BIM Platform

Table 5

Test results of Marshall compaction.

Test number		Gradation	Asphalt-aggregate ratio (%)	Molding temperature (°C)	Air voids (%)
		A	B	C
Orthogonal test (OT)	1	Upper limit of fluctuation	4.7	145	5.0
	2	Upper limit of fluctuation	5.0	160	3.8
	3	Upper limit of fluctuation	5.3	175	2.9
	4	Design gradation	4.7	160	4.4
	5	Design gradation	5.0	175	3.5
	6	Design gradation	5.3	145	3.0
	7	Lower limit of fluctuation	4.7	175	6.0
	8	Lower limit of fluctuation	5.0	145	5.8
	9	Lower limit of fluctuation	5.3	160	4.4
Control group	Design gradation	5.0	160	3.7