Research Article
Improvement for Construction of Concrete-Wall with Resistance to Gas-Explosion
Table 7
Experiment result of concrete.
| | Division | Slump (mm) | Slump flow (mm) | Air contents (%) | Compression strength (MPa) | | 7 days | 28 days |
| | First agitator truck arrived in site | Before pumping | 130 | 225/220 | 4.0 | 20.9 | 30.9 | | After pumping | 170 | 240/300 | 3.6 | 23.8 | 32.7 |
| | Third agitator truck arrived in site | Before pumping | 135 | 230/240 | 3.8 | 21.8 | 31.0 | | After pumping | 160 | 310/280 | 3.5 | 24.2 | 33.1 |
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