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Chemical composition of geopolymer as determined from EDS analysis.
| Mix | Si | Al | Na | K | Ca | O | Si/Al |
|---|---|---|---|---|---|---|---|
| M1 | 10.2 | 2.7 | 3.8 | 0.2 | 5.5 | 46.3 | 3.8 |
| M3 | 14.9 | 3.5 | 5.7 | 0.6 | 6.8 | 54.5 | 4.3 |
| M5 | 15 | 5.7 | 7.1 | 0.6 | 9.5 | 56.3 | 2.6 |
| M7 | 15 | 4.8 | 8.3 | 0.4 | 9 | 52.8 | 3.1 |
| M9 | 15 | 5.2 | 5.6 | 0.4 | 11.7 | 51.7 | 2.9 |
| M11 | 16.2 | 5.5 | 4.9 | 0.4 | 11.4 | 51.7 | 3.0 |
