Research Article
Research on Influence of Water-Cement Ratio on Reinforcement Effect for Permeation Grouting in Sand Layer
Table 1
Basic physical and mechanical properties of cement in test.
| | Cement grade | Specific surface area (m2/kg) | Initial setting time (h) | Final setting time (h) | 3 d compressive strength (MPa) | 28 d compressive strength (MPa) |
| | PO42.5 | 385 | 15.1 | 21.5 | 4 | 13 |
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