Table 3 The experimental designs.
Test numbers | Water content (%) | Curing time (days) | Temperature (°C) |
|---|---|---|---|
1−0 | 41 | 7, 14, 28, 60, 90, 150, 180, 240 | 20, 30, 40 |
1–1 | 49.2 | 7, 14, 28, 60, 90, 150, 180, 240 | 20, 30, 40 |
1–2 | 57.4 | 7, 14, 28, 60, 90, 150, 180, 240 | 20, 30, 40 |
1–3 | 65.6 | 7, 14, 28, 60, 90, 150, 180, 240 | 20, 30, 40 |
1–4 | 73.8 | 7, 14, 28, 60, 90, 150, 180, 240 | 20, 30, 40 |
1–5 | 82 | 7, 14, 28, 60, 90, 150, 180, 240 | 20, 30, 40 |
1–6 | 90.2 | 7, 14, 28, 60, 90, 150, 180, 240 | 20, 30, 40 |