Laboratory Performance Evaluation of Hot Mix Asphalt Mixture Using Belessa Kaolin as a Filler with Superpave Aggregate Gradation

Table 7

Adopted Superpave aggregate gradation of asphalt mix for 19 mm nominal size.

Sieve size in (mm)	Sieve size raised to 0.45 power	Percentage passing for three Superpave gradations			Specifications of Superpave gradation
					Control points		Restricted zone
		5%	6%	7%	Lower	Upper	Lower	Upper
25	4.257	100	100	100	100
19	3.762	92.5	92	93	90	100
12.5	3.116	80	81.5	81		90
9.5	2.754	69	72	70
4.75	2.016	51	52.5	51.5
2.36	1.472	33	32	31	23	49	34.6	34.6
1.18	1.077	20	21	20			22.3	28.3
0.6	0.795	14	15	14			16.7	20.7
0.3	0.582	11	12	11.5			13.7	13.7
0.15	0.426	8	9	9.5
0.075	0.312	5	6	7			2	8