Research Article
Micro Fine Sized Palm Oil Fuel Ash Produced Using a Wind Tunnel Production System
Table 3
Chemical composition of each sample from EDX analysis.
| Material | Silica | Calcium | Mapping area A | Mapping area B | Mapping area A | Mapping area B | Mass as oxide (%) | Mass as oxide (%) | Mass as oxide (%) | Mass as oxide (%) |
| OPC | 16.24 | 19.40 | 70.11 | 73.69 | Fly ash | 45.21 | 48.02 | — | 2.33 | POFA at 2 m | 50.08 | 69.59 | 12.90 | 14.25 | POFA at 4 m | 23.79 | 31.34 | 4.53 | 10.03 | POFA at 6 m | 35.34 | 45.21 | 8.97 | 5.70 | POFA at 8 m | 30.31 | 26.82 | 4.57 | 1.52 | POFA at 10 m | 41.48 | 28.27 | 7.44 | 7.13 |
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