Research Article
Effects of Nanosilica on Compressive Strength and Durability Properties of Concrete with Different Water to Binder Ratios
Table 2
Composition of concrete mixtures and slump values.
| | w/b | NS (%) | Composition (kg/m3) | Slump (mm) | | Cement | NS | Water | Sand (SSD) | Coarse aggregate (SSD) | SP |
| | 0.65 | 0 | 308 | — | 200 | 924 | 924 | 1.5 | 175 | | 0.5 | 306.5 | 1.5 | 1.5 | 120 | | 1 | 304.9 | 3.1 | 1.5 | 75 | | 1.5 | 303.4 | 4.6 | 1.5 | 30 |
| | 0.55 | 0 | 344 | — | 189 | 924 | 924 | 2.4 | 240 | | 0.5 | 342.3 | 1.7 | 2.4 | 105 | | 1 | 340.6 | 3.4 | 2.4 | 40 | | 1.5 | 338.8 | 5.2 | 2.4 | 40 |
| | 0.5 | 0 | 366 | — | 183 | 922 | 922 | 1.8 | 50 | | 0.5 | 364.2 | 1.8 | 2.6 | 80 | | 1 | 362.3 | 3.7 | 3.1 | 150 | | 1.5 | 360.5 | 5.5 | 5.5 | 60 |
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Superplasticizer.
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