Table 1.
Composition of cement pastes.
| Paste | Material | Mini Slump (mm) | |||||
|---|---|---|---|---|---|---|---|
| Cement (g) | NS or NSF | Superplasticising Additive |
Water (g) | ||||
| Solids (g) | Aqueous Suspension (g) | (g) | (%) by Mass of Cement | ||||
| P-REF | 2000.00 | 0.00 | 0.00 | 5.60 | 0.28 | 695.94 | 119.72 |
| P-NS | 1980.00 | 20.00 | 61.48 | 16.00 | 0.80 | 646.91 | 114.28 |
| P-NSF4 | 1980.00 | 20.00 | 128.87 | 14.00 | 0.70 | 580.97 | 116.76 |
| P-NSF8 | 1980.00 | 20.00 | 137.93 | 25.00 | 1.25 | 563.93 | 114.23 |
Note 1: The amount of water in the colloidal nanosilica (functionalized or not) and in the superplasticizer additive was subtracted from the amount of mixing water for all pastes, resulting in the water/solids ratio being = 0.35. Note 2: Material (solids content)—NS (32.53%), NSF4 (15.52%), NSF8 (14.50%), superplasticizer additive (27.44%).