The Influence of Coffee Husk Ash as a Filler on the Performance of Bituminous Concrete Mix

Table 1

Aggregates gradation and specification criteria as per ASTM D3515 for nominal size 19 mm.

Sieve size (mm)	Percentage passing (%)	% used	Weight (gm)	AASHTO T27 and T37 [17] specification
19	100.00	0.00	0.00	100
12.5	93.10	6.90	82.80	90–100
4.75	63.00	30.10	361.20	44–74
2.36	43.20	19.80	237.60	28–58
0.3	11.40	31.80	381.60	5–21
0.075	3.40	8.00	96.00	2–10
Filler	0.00	3.40	40.80
Total		100.00	1200.00