Metaheuristic Approach to Resolve the Real-World Problem of Binder in Concrete by Synthesizing Natural Iron-Rich Binder System Using Chemical Activation

Table 2

Combination chosen for Taguchi’s optimization techniques for L9 orthogonal array.

Exp. no.	Levels	Binder materials	Levels	Percentage of G or F or A	Levels	Activator solution	Levels	Molarity of NaOH or KOH or H3PO4 (mols)	Mean compressive strength (N/mm^2)
1	1	LaG	1	10	1	N	1	5	0.27
2	1	LaG	2	20	2	K	2	8	8.19
3	1	LaG	3	30	3	P	3	10	0.38
4	2	LaF	1	10	2	K	3	10	0.75
5	2	LaF	2	20	3	P	1	5	0.49
6	2	LaF	3	30	1	N	2	8	4.60
7	3	LaA	1	10	3	P	2	8	2.43
8	3	LaA	2	20	1	N	3	10	21.97
9	3	LaA	3	30	2	K	1	5	25.77