Research Article
Performance Evaluation and Microstructure Characterization of Metakaolin-Based Geopolymer Containing Oil Palm Ash
Table 1
Chemical composition (wt.%) and physical property of MK and OPA.
| Element | MK | OPA |
| SiO2 | 50.30 | 38.37 | Al2O3 | 41.02 | 1.48 | CaO | 0.33 | 13.84 | Fe2O3 | 1.05 | 3.01 | K2O | 4.08 | 14.09 | TiO2 | 1.50 | 0.21 | MgO | ā | 3.00 | Other | ā | 5.57 | LOI | 1.72 | 20.43 |
| Specific surface area (m2/g) BET | 13.61 | 13.06 |
| (m) | 1.352 | 4.321 | (m) | 6.308 | 19.305 | (m) | 88.803 | 100.109 |
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