Research Article
Performance Evaluation and Microstructure Characterization of Metakaolin-Based Geopolymer Containing Oil Palm Ash
Table 2
Mix proportions of geopolymer samples.
| Sample name | MK (by weight) | OPA (by weight) | CaO/SiO2 (molar ratio) | SiO2/Al2O3 (molar ratio) | Heat curing (h) |
| Control-1 | 100 | — | 0.01 | 2.77 | 1 | O5-1 | 95 | 5 | 0.02 | 2.88 | O10-1 | 90 | 10 | 0.03 | 3.01 | O15-1 | 85 | 15 | 0.04 | 3.15 |
| Control-2 | 100 | — | 0.01 | 2.77 | 2 | O5-2 | 95 | 5 | 0.02 | 2.88 | O10-2 | 90 | 10 | 0.03 | 3.01 | O15-2 | 85 | 15 | 0.04 | 3.15 |
| Control-4 | 100 | — | 0.01 | 2.77 | 4 | O5-4 | 95 | 5 | 0.02 | 2.88 | O10-4 | 90 | 10 | 0.03 | 3.01 | O15-4 | 85 | 15 | 0.04 | 3.15 |
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