Research Article
Effects of GO/Al2O3 and Al2O3 Nanoparticles on Concrete Durability against High Temperature, Freeze-Thaw Cycles, and Acidic Environments
Table 1
Required aggregates for the investigated mix design (kg.m−3).
| Specimen | Cement (kg/m3) | Water (kg/m3) | GO/Al2O3 (kg/m3) | Al2O3 (kg/m3) | Sand (kg/m3) | Gravel (kg/m3) | Superplasticizer (kg/m3) |
| Control sample | 400 | 180 | — | — | 1225 | 525 | 0.6 | GO/Al2O3 1% | 396 | 180 | 4 | — | 1225 | 525 | 0.6 | GO/Al2O3 2% | 392 | 180 | 8 | — | 1225 | 525 | 0.6 | GO/Al2O3 3% | 388 | 180 | 12 | — | 1225 | 525 | 0.6 | GO/Al2O3 4% | 384 | 180 | 16 | — | 1225 | 525 | 0.6 | Al2O3 1% | 396 | 180 | — | 4 | 1225 | 525 | 0.6 | Al2O3 2% | 392 | 180 | — | 8 | 1225 | 525 | 0.6 | Al2O3 3% | 388 | 180 | — | 12 | 1225 | 525 | 0.6 | Al2O3 4% | 384 | 180 | — | 16 | 1225 | 525 | 0.6 |
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