Research Article
The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC
Table 2
The main characteristics of thermal effects typical of CAH.
| Composition | Hydration time (h) | Onset, °C | Peak, °C | Heat of process, J/g | Unreacted CAH, wt.% |
| OPC-CAH2 | 0 | 250.2 | 268.6 | 21.81 | 100 | 1.8 | 253.8 | 271.0 | 14.65 | 67.17 | 3 | 254.5 | 273.3 | 14.51 | 66.53 | 5.5 | 256.7 | 276.3 | 13.67 | 62.68 | 9.5 | 261.6 | 280.5 | 12.24 | 56.12 | 13 | 265.2 | 282.5 | 11.94 | 54.75 | 16.5 | 264.1 | 286.0 | 11.71 | 53.69 | 24 | 267.7 | 286.8 | 10.39 | 47.64 |
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