Research Article
Sawdust Ash as Powder Material for Self-Compacting Concrete Containing Naphthalene Sulfonate
Table 1
Chemical and physical properties of OPC and SDA.
| Oxides | Ashaka PC | Sawdust ash |
| SiO2(%) | 20.7 | 67.2 | Al2O3 (%) | 6.1 | 4.1 | Fe2O3 (%) | 2.3 | 2.3 | CaO (%) | 62.1 | 10.0 | MgO (%) | 1.2 | 5.8 | Na2O (%) | 0.9 | 0.1 | K2O (%) | 1.0 | 0.1 | SO2 (%) | 1.6 | 0.5 | P2O5 (%) | — | 0.5 | MnO (%) | — | 0.01 | Specific gravity | 3.15 | 2.29 | Ignition loss (%) | 1.00 | 4.6 | Loose bulk density (kg/m3) | 1550 | 830 | Specific surface Blaine (m2/kg) | 355 | 151 | Moisture content (%) | — | 0.37 | pH value | | 10.10 |
| Bogue potential compound
composition: |
C3S 46 |
C2S 24 |
C3A 12 |
C4AF 7 |
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