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Density and porosity values of the control sample and geopolymer containing nano-silica. Uncertainties are indicated in brackets.
| Sample | Density (gm/cm3) | Porosity (%) |
|---|---|---|
| GP | 1.84 (0.02) | 22.20 (0.45) |
| GPNS-0.5 | 1.89 (0.02) | 20.87 (1.35) |
| GPNS-1.0 | 2.10 (0.02) | 16.08 (0.76) |
| GPNS-2.0 | 2.04 (0.03) | 17.49 (1.84) |
| GPNS-3.0 | 1.96 (0.08) | 20.33 (1.01) |
