Research Article
Mechanical Performance and Durability Evaluation of Sandstone Concrete
Table 1
Characteristics of Portland cement.
| | Parameter | Value |
| | Physical characteristics | | Density (g/m3) | 3.10 | | Initial set (min) | 175 | | Final set (min) | 315 | | Mechanical characteristics | | 3-day compressive strength (MPa) | 16.9 | | 7-day compressive strength (MPa) | 25.0 | | 28-day compressive strength (MPa) | 42.0 | | Chemical characteristics | | SiO2 (%) | 21.67 | | Al2O3 (%) | 4.76 | | Fe2O3 (%) | 4.68 | | CaO (%) | 61.31 | | MgO (%) | 2.88 | | SO3 (%) | 1.98 | | Na2O (%) | 0.20 | | K2O (%) | 0.51 | | Equivalent alkali (%) | 0.54 | | SiO2 (%) | 21.67 | | LOI (%) | 4.84 |
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