Research Article
Research on the Mechanical Properties and NMR Characteristics of Cement Mortar during Freeze-Thaw Cycles
Table 1
P.O 42.5 R Portland cement quality performance metrics.
| | Initial setting times | Final setting time | Compressive strength (MPa) | Breaking strength (MPa) | Fineness (%) | Loss on ignition (%) | MgO content (%) | SO3 content (%) | | 3 d | 28 d | 3 d | 28 d |
| | 70 min | 6 h | 20 | 38.5 | 3.6 | 7.8 | 3.4 | 3.6 | 2.3 | 2.8 |
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