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Composition of commercial raw materials used to prepare the geopolymers.
| Raw Material | SiO2 (wt.%) | Al2O3 (wt.%) | Na2O (wt.%) | K2O (wt.%) | H2O (wt.%) | Other (wt.%) |
|---|---|---|---|---|---|---|
| Metakaolin (Argical 1200S) | 55.00 | 39.00 | <1.00 | <1.00 | - | 5 |
| Na silicate (Ingessil 2942) | 28.35 | - | 9.77 | - | 61.88 | - |
| K silicate (T205K) | 57.26 | - | - | 27.24 | 15.5 | - |
