Research Article
Flexural Toughness of Steel Fiber Reinforced High Performance Concrete Containing Nano-SiO2 and Fly Ash
Table 1
Properties of cement and fly ash.
| Composition (%) | Cement | Fly ash |
| Chemical compositions | | | SiO2 | 20.85 | 51.50 | Al2O3 | 5.32 | 18.46 | Fe2O3 | 2.69 | 6.71 | CaO | 62.97 | 8.58 | MgO | 3.66 | 3.93 | Na2O | 0.15 | 2.52 | K2O | 0.62 | 1.85 | SO3 | 2.48 | 0.21 | Physical properties | | | Specific gravity | 3.11 | 2.16 | Specific surface (cm2/g) | 3287 | 2470 |
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