Table 5 Response surface experimental design and results.
Standard order | Factor | Tensile strength (MPa) | Fluidity (mm) | |||
|---|---|---|---|---|---|---|
ER content (%) | Water-cement ratio | Fe3O4 content (%) | SAC content (%) | |||
1 | 5 | 0.45 | 10 | 2.5 | 1.87 | 245.00 |
2 | 9 | 0.45 | 10 | 2.5 | 2.57 | 226.00 |
3 | 5 | 0.55 | 10 | 2.5 | 0.82 | 266.00 |
4 | 9 | 0.55 | 10 | 2.5 | 1.43 | 255.00 |
5 | 5 | 0.45 | 20 | 2.5 | 1.85 | 238.00 |
6 | 9 | 0.45 | 20 | 2.5 | 1.65 | 216.00 |
7 | 5 | 0.55 | 20 | 2.5 | 1.33 | 264.00 |
8 | 9 | 0.55 | 20 | 2.5 | 1.26 | 244.00 |
9 | 5 | 0.45 | 10 | 7.5 | 1.21 | 233.00 |
10 | 9 | 0.45 | 10 | 7.5 | 1.78 | 221.00 |
11 | 5 | 0.55 | 10 | 7.5 | 0.98 | 243.00 |
12 | 9 | 0.55 | 10 | 7.5 | 1.63 | 248.00 |
13 | 5 | 0.45 | 20 | 7.5 | 1.12 | 233.00 |
14 | 9 | 0.45 | 20 | 7.5 | 1.31 | 217.00 |
15 | 5 | 0.55 | 20 | 7.5 | 1.57 | 255.00 |
16 | 9 | 0.55 | 20 | 7.5 | 2.03 | 242.00 |
17 | 3 | 0.5 | 15 | 5 | 1.01 | 255.00 |
18 | 11 | 0.5 | 15 | 5 | 1.98 | 209.00 |
19 | 7 | 0.4 | 15 | 5 | 1.86 | 204.00 |
20 | 7 | 0.6 | 15 | 5 | 1.14 | 259.00 |
21 | 7 | 0.5 | 5 | 5 | 1.66 | 247.00 |
22 | 7 | 0.5 | 25 | 5 | 1.93 | 229.00 |
23 | 7 | 0.5 | 15 | 0 | 1.34 | 243.00 |
24 | 7 | 0.5 | 15 | 10 | 1.37 | 228.00 |
25 | 7 | 0.5 | 15 | 5 | 2.05 | 235.00 |
26 | 7 | 0.5 | 15 | 5 | 1.98 | 235.00 |
27 | 7 | 0.5 | 15 | 5 | 2.18 | 235.00 |
28 | 7 | 0.5 | 15 | 5 | 2.12 | 235.00 |
29 | 7 | 0.5 | 15 | 5 | 2.09 | 235.00 |
30 | 7 | 0.5 | 15 | 5 | 2.18 | 235.00 |
