Table 1.

Descriptive statistics of the data set.

Continuous/numerical variable
Variable	Unit	Min.	Q1	Median	Mean	Q3	Max.	SD
Consistency	Bc	2.98	6.99	12.69	17.27	19.63	109.55	15.13
Time	Minutes	0.02	68.42	149.02	166.56	241.91	532.88	166.56
Temperature	Degrees Celsius	25	50	50	51.87	60	60	51.87
Discrete variable
Potassium Nitrate$\mathit{K}\mathit{N}{\mathit{O}}_{\mathbf{3}}$	g	Possible values (0, 1, 2 or 3) and proportions (%) of each (12.3, 34.2, 17, 36.5)
Calcium Carbonate$\mathit{C}\mathit{a}\mathit{C}{\mathit{O}}_{\mathbf{3}}$	g	Possible values (0, 3 or 4) and proportions (%) of each (63.5, 26.5, 10)
Aluminum hydroxide$\mathit{A}\mathit{l}\mathit{O}{\mathit{H}}_{\mathbf{3}}$	g	Proportions (0, 5 or 6) and proportions (%) of each (81, 12, 7)
$\mathit{K}-\mathit{s}\mathit{i}\mathit{l}\mathit{i}\mathit{c}\mathit{a}\mathit{t}\mathit{e}\mathit{s}\mathit{o}\mathit{l}\mathit{u}\mathit{t}\mathit{i}\mathit{o}\mathit{n}\left(\mathit{p}\mathit{H}\mathbf{14}\right)$	g	Possible values (77, 79, 82, 85, 88, 90 or 91) and proportions (%) of each (17, 20, 5, 18, 2, 1.5, 36.5)
$\mathit{K}-\mathit{s}\mathit{i}\mathit{l}\mathit{i}\mathit{c}\mathit{a}\mathit{t}\mathit{e}\mathit{s}\mathit{o}\mathit{l}\mathit{u}\mathit{t}\mathit{i}\mathit{o}\mathit{n}\left(\mathit{p}\mathit{H}\mathbf{11.5}\right)$	g	Possible values (220, 223, 225 or 228) and proportions (%) of each (1.5, 90.5, 3, 5)
Water${\mathit{H}}_{\mathbf{2}}\mathit{O}$	g	Possible values (47, 57 or 78) and proportions (%) of each (14, 76.5, 9.5)
Zinc Nitrate$\mathit{Z}\mathit{n}\mathit{N}{\mathit{O}}_{\mathbf{3}}$	g	Possible values (0, 4, 6 or 8) and proportions (%) of each (13, 34, 17, 36)
Binary variable
Sodium Hydroxide$\mathit{N}\mathit{a}\mathit{O}\mathit{H}$	g	Possible values (0 or 1) Proportions (%) of each (63.5, 36.5)
Granite	g	Possible values (350 or 490) Proportions (%) of each (9.5, 90.5)
Microsilica	g	Possible values (0 or 10) Proportions (%) of each (9.5, 90.5)
Ground granulated blast-furnace slag (BFS)	g	Possible values (200 or 350) Proportions (%) of each (90.5, 9.5)

Note: There are no missing values in the dataset. Total number of observations per variable is 8475.