Review Article
Effect of Agricultural Crop Wastes as Partial Replacement of Cement in Concrete Production
Table 7
Chemical compositions of SCBA.
| Chemical oxides (%) | Authors | Quedou et al. [66] | Ganesan et al. [78] | Abd Elhameed Hussein et al. [79] | Mangi et al. [80] |
| SiO2 | 30.27 | 64.15 | 77.25 | 65.00 | Al2O3 | 23.80 | 9.05 | 6.37 | 3.95 | Fe2O3 | 4.87 | 5.52 | 4.21 | 9.17 | CaO | 1.69 | 8.14 | 4.05 | 12.60 | MgO | 1.37 | 2.85 | 2.61 | 0.60 | SO3 | — | — | 0.11 | 0.10 | K2O | — | 1.35 | 2.34 | — | Na2O | — | 0.92 | 1.38 | — | LOI | 5.43 | 4.90 | 1.4 | 9.02 | SiO2 + Al2O3 + Fe2O3 | 58.94 | 78.72 | 87.83 | 78.12 | ASTM class | Class C | Class F | Class F | Class N |
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