Research Article
XRD-Rietveld Method for Evaluating the Leaching Characteristics of Hardened Cement Paste in Flowing Water
Table 2
Physical properties of silica fume.
| Analysis item | SiO2 (%) | Na2O (%) | K2O (%) | R2O (%) | Cl- (%) | LOI (%) | Activity index (%) | Specific surface area (m2/kg) | Average particle size (μm) |
| Silica fume | 93.1 | 0.32 | 0.46 | 0.48 | 0.02 | 2.9 | 107 | 18954 | 0.24 |
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