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

Table 8

Marshall properties of specimen mix with the two filler materials at OAC.

Mix type	Marshall parameters
	OBC (%)	UW (g/cc)	AV (%)	VMA (%)	VFA (%)	Stability (kN)	Flow (mm)	Marshall Quotient (kN/mm)
BSD	5.10	2.404	4.70	18.05	70.12	10.53	2.37	4.44
CHA	5.53	2.275	4.97	14.65	72.25	14.30	3.43	4.17
Standards	—	—	3–5	Min 13	65–75	Min 8	2–4	2–5