Utilizing Coal Bottom Ash from Thermal Power Plants in Vietnam as Partial Replacement of Aggregates in Concrete Pavement

Table 3

Mix proportions of the concrete.

No.	Sample	Replacement ratio of fine aggregates	Fine CBA (<5 mm) (kg)	Coarse CBA (>5 mm) (kg)	Coarse aggregates (kg)	Fine aggregates (kg)	Cement (C) (kg)	Water (W) (l)	W/C
1	AK1	100	535	240	820	0	405	240	0.59
2	AK2	100	535	240	820	0	440	240	0.55
3	AK3	100	535	240	820	0	475	240	0.51
4	AK4	100	535	240	820	0	524	270	0.52
5	AK5	100	535	240	820	0	524	280	0.53
6	TC	100	0	0	1060	535	410	189	0.46
7	CN1	100	535	30	1030	0	414	272	0.66
8	CN2	100	535	30	1030	0	430	289	0.67
9	CN3	100	535	30	1030	0	468	281	0.60
10	CN4	100	535	30	1030	0	506	276	0.55
11	CN5	100	535	30	1030	0	520	252	0.48
12	CN6	30	160	30	1030	375	443	214	0.48
13	CN7	15	80	30	1030	454	443	214	0.48

Note: AK, concrete using An Khanh CBA; CB, concrete using Cao Ngan CBA; TC, concrete M30 without CBA.