Research Article
Effect of Chopped Basalt Fibers on the Mechanical Properties and Microstructure of High Performance Fiber Reinforced Concrete
Table 1
Physical and chemical composition of OPC, silica fume, and metakaolin.
| | Properties | OPC | Silica fume | Metakaolin |
| | Specific gravity | 3.05 | 2.2 | — | | BET surface area (m2/g) | 0.39 | 16.46 | 12.17 | | Loss on ignition (%) | — | 2.0 | 1.85 | | Average particle size (µm) | — | — | 2.5–4.5 | | SiO2 (%) | 20.44 | 91.40 | 53.87 | | Al2O3 (%) | 2.84 | 0.09 | 38.57 | | CaO (%) | 67.73 | 0.93 | 0.04 | | MgO (%) | 1.43 | 0.78 | 0.96 | | SO3 (%) | 2.20 | — | — | | Na2O (%) | 0.02 | 0.39 | 0.04 | | K2O (%) | 0.26 | 2.41 | 2.68 | | TiO2 (%) | 0.17 | — | — | | MnO (%) | 0.16 | 0.05 | 0.01 | | Fe2O3 (%) | 4.64 | — | 1.40 | | TiO2 (%) | — | 0.04 | 0.95 | | P2O5 (%) | — | 0.38 | 0.10 |
|
|
Note: properties were determined by X-ray fluorescence (XRF) and Brunauer-Emmett-Teller (BET) specific surface area analysis.
|
