Table 3 Composition of the Geoplymer mixes.

Mix	MK, %	CEM I, %	NaOH, 10 M(ml)	Sodium silicate (ml)	Water/ binder	Total M₂O/ Al₂O₃	SiO₂/ Al₂O₃	Total M₂O/ SiO₂	Ca/Si
M1	100	0	33.50	66.50	0.396	0.100	2.310	0.030	0.019
M2	95	5	33.50	66.50	0.380	0.100	2.350	0.030	0.062
M3	90	10	33.50	66.50	0.380	0.110	2.400	0.030	0.125
M4	85	15	33.50	66.50	0.360	0.120	2.440	0.030	0.193
M5	80	20	33.50	66.50	0.360	0.120	2.490	0.030	0.260
M6	75	25	33.50	66.50	0.350	0.120	2.550	0.040	0.341
M7	70	30	33.50	66.50	0.350	0.130	2.610	0.040	0.422
N1	90	10	18.75	37.50	0.638	0.230	2.690	0.060	0.112
N2	80	20	18.75	37.50	0.576	0.260	2.820	0.060	0.234
N3	70	30	18.75	37.50	0.563	0.290	2.980	0.070	0.370
N4	60	40	18.75	37.50	0.633	0.330	3.190	0.070	0.523
N5	50	50	18.75	37.50	0.625	0.390	3.450	0.080	0.697

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