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

Table 7

Laboratory mix design result with CHA.

Bitumen (%)	A (gm/cc)	VA (%)	VMA (%)	VFA (%)	Stability (kN)	Flow (mm)	Stability (kN) (after 24 h)
4.0	2.13	12.39	18.97	34.70	10.91	2.77	9.67
4.5	2.23	7.79	15.76	50.59	11.95	3.08	11.06
5.0	2.25	6.31	15.46	59.17	13.98	3.17	13.54
5.5	2.27	4.44	14.83	70.04	14.54	3.37	15.32
6.0	2.28	3.43	14.97	77.11	13.87	3.60	13.84
Standard values		3–5	Min 13	65–75	Min 8	2–4	Min 8