Table 4.
Mix designs used to determine optimum mix design for SPAC.
| S. No | S/B | W/B | Silica Fume (%Age by Weight of Binder) |
SP dosage (% by Weight of Binder) |
SP Model | Flowability (mm) |
Comments | Three-Day Compressive Strength (MPa) |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 0.37 | 5 | 1 | AG 300 | 280 | Sufficient flowability | 17.87 |
| 2 | 1 | 0.37 | 10 | 1 | AG 300 | 229 | Grout too thick | - |
| 3 | 1 | 0.38 | 10 | 1 | AG 300 | 254 | Grout too thick | - |
| 4 | 1 | 0.39 | 10 | 1 | AG 300 | 280 | Sufficient flowability | 19.73 |
| 5 | 1 | 0.39 | 15 | 1 | AG 300 | 242 | Grout too thick | - |
| 6 | 1 | 0.41 | 15 | 1 | AG 300 | 267 | Grout too thick | - |
| 7 | 1 | 0.41 | 20 | 1 | AG 300 | 166 | Grout too thick | - |
| 8 | 1 | 0.45 | 20 | 1 | AG 300 | 254 | Grout too thick | - |