Table 3 Portlandite content in cement mortar incorporated nanosilica.
Sample | Portlandite content (%) | |||
|---|---|---|---|---|
1 days | 3 days | 7 days | 28 days | |
Cement mortar | 5.85 | 9.25 | 11.6 | 15.32 |
CM + 3 %SF | 5.38 | 6.9 | 7.55 | 10.5 |
CM + 3 % colloidal-NS | 4.2 | 6.3 | 6.7 | 6.5 |
CM + 3 % powder-NS | 4.0 | 5.8 | 5.4 | 4.8 |