Coal Bottom Ash for Portland Cement Production

Table 2

Bottom ash (BA) with fly ash (FA) and cement (CEM I 42.5 N) mixes.

Cement mix	Raw material	Fly ash + bottom ash mix codification
		α	β	γ	δ	λ
CEM I	Fly ash	0%
	Bottom ash	0%
	Cement	100%
CEM II/A-V	Fly ash		10%	9%	8%	5%	0%
	Bottom ash		0%	1%	2%	5%	10%
	Cement		90%	90%	90%	90%	90%
CEM II/B-V	Fly ash		25%	22,5%	20%	12,5%	0%
	Bottom ash		0%	2,5%	5%	12,5%	25%
	Cement		75%	75%	75%	75%	75%
CEM IV/A (V)	Fly ash		35%	31,5%	28%	17,5%	0%
	Bottom ash		0%	3,5%	7%	17,5%	35%
	Cement		65%	65%	65%	65%	65%