Laboratory Evaluation on Performance of Fiber-Modified Asphalt Mixtures Containing High Percentage of RAP

Table 5

Asphalt mixture gradation.

Sieve size (mm)		19	16	13.2	9.5	4.75	2.36	1.18	0.6	0.3	0.15	0.075
Passing rate (%)	Upper limit	100	90	76	60	34	20	13	9	7	5	4
	Lower limit	100	100	92	80	62	48	36	26	18	14	8
	0% RAP	100	94.8	85.2	68.5	49.0	34.1	24.8	15.8	11.5	8.8	6.4
	20% RAP	100	95.7	85.9	69.4	49.2	34.6	25.3	16.2	11.9	8.8	6.7
	40% RAP	100	95.8	85.9	69.6	49.6	34.8	25.6	16.4	11.5	9.1	6.8