[Retracted] A New Method for the Aggregate Proportion Calculation and Gradation Optimization of Asphalt-Treated Base (ATB-25)

Table 3

Design factors and levels of aggregate gradation.

	Factors
	Cumulative passing rate of coarse aggregate (%)						Cumulative passing rate of fine aggregate (%)
Sieve size (mm)	31.5	26.5	19	16	13.2	9.5	2.36	1.18	0.6	0.3	0.15	0.075
Level 1	100	95	70	58	52	42	23.5	17.5	13	9.5	6.5	4
Level 2	100	97.5	75	63	57	47	27.75	21.25	15.5	11.75	8.25	5
Level 3	100	92.5	65	53	47	37	19.25	13.75	10.5	7.25	4.75	3