Effects of Paving Technology, Pavement Materials, and Structures on the Fatigue Property of Double-Layer Pavements

Table 2

Aggregate gradations of the different asphalt mixtures used in this study.

Mixture types	Percentage passing for sieve size (mm)
	31.5	26.5	19	16	13.2	9.5	4.75	2.36	1.18	0.6	0.3	0.15	0.075
AC-13	—	—	—	100	92.4	79.1	53.5	37.6	25.3	17.6	10.2	7.4	6.1
AC-16	—	—	100	98.8	88.4	70.6	44.3	32.5	22.1	15.6	9.3	6.8	5.7
AC-20	—	100	92.7	82.0	73.2	61.1	41.1	31.9	21.5	15.0	8.6	6.0	5.0
AC-25	100	99.3	80.5	70.6	63.0	52.8	40.1	32.7	22.0	15.3	8.6	6.0	5.0