Research Article
Experimental Study on the Effect of Expansive Agent on the Durability of Concrete in Civil Air Defense Engineering
Table 3
Concrete cube compressive strength value.
| Age | Specimen (MPa) | Specimen size (mm × mm × mm) | Peak load (kN) | Measured value of compressive strength (MPa) | Average compressive strength |
| M-7d | C30-1 | 100 × 100 × 100 | 247.75 | 23.5 | 24.6 | C30-2 | 100 × 100 × 100 | 281.53 | 26.7 | C30-3 | 100 × 100 × 100 | 258.67 | 23.4 | P-7d | C30-1 | 100 × 100 × 100 | 228.42 | 21.7 | 21.1 | C30-2 | 100 × 100 × 100 | 217.89 | 20.7 | C30-3 | 100 × 100 × 100 | 220.00 | 20.9 | M-28d | C30-4 | 100 × 100 × 100 | 414.75 | 39.4 | 40.1 | C30-5 | 100 × 100 × 100 | 408.07 | 38.8 | C30-6 | 100 × 100 × 100 | 444.88 | 42.3 | P-28d | C30-4 | 100 × 100 × 100 | 417.89 | 39.7 | 38.6 | C30-5 | 100 × 100 × 100 | 394.74 | 37.5 | C30-6 | 100 × 100 × 100 | 406.32 | 38.6 | M-56d | C30-7 | 100 × 100 × 100 | 454.85 | 43.2 | 45.3 | C30-8 | 100 × 100 × 100 | 465.81 | 44.3 | C30-9 | 100 × 100 × 100 | 507.97 | 48.3 | P-56d | C30-1 | 100 × 100 × 100 | 467.37 | 44.4 | 44.6 | C30-2 | 100 × 100 × 100 | 491.58 | 46.7 | C30-3 | 100 × 100 × 100 | 449.47 | 42.7 |
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