Research Article
Hydration of Reactive MgO as Partial Cement Replacement and Its Influence on the Macroperformance of Cementitious Mortars
Table 4
Carbonation depth and sorptivity of specimens with increasing MgO content.
| Mix | Carbonation depth (mm) | Sorptivity (×10−3 g/mm2) | 28 days | 91 days | 3 hours | 6 hours | 24 hours | 72 hours | Avg. | Std. | Avg. | Std. | Avg. | Std. | Avg. | Std. | Avg. | Std. | Avg. | Std. |
| CM | 1.32 | 1.44 | 1.76 | 1.47 | 4.21 | 0.09 | 5.49 | 0.17 | 9.69 | 0.61 | 12.12 | 0.50 | MA10 | 1.22 | 1.31 | 3.00 | 1.53 | 3.52 | 0.18 | 4.70 | 0.18 | 9.19 | 0.29 | 13.89 | 0.35 | MA15 | 1.39 | 1.21 | 4.38 | 0.88 | 3.86 | 0.29 | 5.19 | 0.34 | 10.21 | 0.09 | 15.18 | 0.16 | MA20 | 2.39 | 1.93 | 5.83 | 1.20 | 4.35 | 0.08 | 5.68 | 0.12 | 9.93 | 0.25 | 14.31 | 0.52 | MG10 | 1.21 | 1.14 | 2.04 | 1.07 | 3.33 | 0.14 | 4.46 | 0.17 | 8.36 | 0.12 | 12.42 | 0.20 | MG15 | 1.56 | 1.52 | 4.13 | 1.38 | 3.66 | 0.05 | 4.90 | 0.05 | 8.55 | 0.06 | 12.65 | 0.22 | MG20 | 2.74 | 1.82 | — | — | 4.74 | 0.09 | 6.36 | 0.13 | 11.27 | 0.26 | 16.77 | 0.36 |
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Note: CM: control mortar; MA: mortars with MgO A; MG: mortars with MgO G.
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