Pavement and Noise Reduction Performance of Open-Graded Asphalt Friction Course Improved by Waste Tire Crumb Rubber

Table 4

OGFC limits of gradation and suggested gradation.

Sieve size (mm)	16.000	13.200	9.500	4.750	2.360	1.180	0.300	0.075
Midvalue (%)	100	96	59	18	10	8	5	4
Upper limits (%)	100	100	68	22	13	10	7	4
Lower limits (%)	100	92	50	14	6	6	4	3