Research Article
The Study on Early-Age Expansion and Shrinkage Model of Massive Self-Compacting Concrete Pumped in Steel Tube Column
Table 2
Major parameters of massive self-compacting concrete pumped in steel tube columns.
| | Mixture performance (1 hour after the concrete is discharged from the mixer) | Compressive strength/MPa | Dry shrinkage/×10−6 m/m | | Air contents | Slump | Slump flow | V-shaped funnel test | 3 d | 7 d | 28 d | 60 d | 3 d | 7 d | 14 d | 28 d | 60 d | 90 d | 180 d |
| | 3.2% | 255 mm | 700 mm | 14 s | 39.5 | 54.8 | 78.9 | 86.7 | −79 | −176 | −237 | −305 | −378 | −412 | −431 |
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