Research Article
Optimization of River Sand with Spent Garnet Sand in Concrete Using RSM and R Programming Packages
Table 2
RSM 13 runs: mix proportions and responses.
| Experimental run | Mix Id | Cement (kg/m3) | Factors | Coarse aggregate (kg/m3) | Responses | River sand | Spent garnet sand (SGS) | at 28 days (N/mm2) | (%) | (kg/m3) | (%) | (kg/m3) | Compressive strength (CS28) | Flexural strength (FS28) |
| 1 | M1 | 413.3 | 80 | 569.87 | 20 | 142.47 | 1101.75 | 28.58 | 9.08 | 2 | M2 | 413.3 | 60 | 427.40 | 40 | 284.94 | 1101.75 | 28.99 | 6.55 | 3 | M3 | 413.3 | 40 | 284.94 | 60 | 427.40 | 1101.75 | 26.82 | 5.98 | 4 | M4 | 413.3 | 20 | 142.47 | 80 | 569.87 | 1101.75 | 24.54 | 4.62 | 5 | M5 | 413.3 | 80 | 569.87 | 20 | 142.47 | 1101.75 | 28.58 | 9.08 | 6 | M6 | 413.3 | 60 | 427.40 | 40 | 284.94 | 1101.75 | 28.99 | 6.55 | 7 | M7 | 413.3 | 40 | 284.94 | 60 | 427.40 | 1101.75 | 26.82 | 5.98 | 8 | M8 | 413.3 | 20 | 142.47 | 80 | 569.87 | 1101.75 | 24.54 | 4.62 | 9 | M9 | 413.3 | 80 | 569.87 | 20 | 142.47 | 1101.75 | 28.58 | 9.08 | 10 | M10 | 413.3 | 60 | 427.40 | 40 | 284.94 | 1101.75 | 28.99 | 6.55 | 11 | M11 | 413.3 | 40 | 284.94 | 60 | 427.40 | 1101.75 | 26.82 | 5.98 | 12 | M12 | 413.3 | 20 | 142.47 | 80 | 569.87 | 1101.75 | 24.54 | 4.62 | 13 | M13 | 413.3 | 80 | 569.87 | 20 | 142.47 | 1101.75 | 28.58 | 9.08 |
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