Table 2.
Mixture proportions of mortars with different limestone and CaCl2 additions.
| MIX ID | OPC | LS_20-LS_30-LS_40 | CaCl2_1-CaCl2_2-CaCl2_3 | Hybrid | LS2_05-LS2_13 |
|---|---|---|---|---|---|
| Cement (gc) | 710 | 710 | 710 | 710 | 710 |
| Limestone (% by mass of cement) | 0 | 21.7-37.1-59.3 | 0 | 21.7 | 4.74-12.8 |
| CaCl2 (% by mass of cement) | 0 | 0 | 1-2-3 | 1 | 0 |
|
| |||||
| Cement (g) | 710 | 710 | 710 | 710 | 710 |
| Limestone powder (g) | 0.00 | 154.1-263.4-421 | 0 | 154.1 | 33.6-90.9 |
| CaCl2·2H2O (g) | 0 | 0 | 9.4-18.8-28.2 | 9.4 | 0 |
| F95 Fine sand (g) | 401 | 254.2-150.1-0 | 387.7-374.5-361.2 | 241.0 | 368.2-313.5 |
| Graded sand C778 (g) | 305 | 305 | 305 | 305 | 305 |
| 20–30 sand C778 (g) | 305 | 305 | 305 | 305 | 305 |
| S16 coarse sand (g) | 594 | 594 | 594 | 594 | 594 |
| HRWRA (g) | 0.0 | 0.0-1.29-3.54 | 0.0 | 0.0 | 0.0 |
| Water (g) | 284 | 284 | 284 | 284 | 284 |
|
| |||||
| Limestone (% vol. of powders) | 0.0 | 20.0-30.0-40.6 | 0.0 | 19.7 | 5.2-13.0 |
| CaCl2·2H2O (% vol. of powders) | 0.0 | 0.0 | 2.2-4.3-6.4 | 1.8 | 0.0 |
|
| |||||
| Water (% total volume) | 25.28 | 25.28 | 25.28 | 25.28 | 25.28 |
| Sand volume fraction | 0.55 | 0.50-0.46-0.41 | 0.54-0.54-0.53 | 0.49 | 0.54-0.52 |
| w/p ratio (by mass)d | 0.40 | 0.33-0.29-0.25 | 0.39-0.39-0.38 | 0.33 | 0.38-0.35 |
c
454 g = 1 lb
d
powder includes cement and limestone powder or CaCl2