Research Article
Carbonation Characteristics of Alkali-Activated Blast-Furnace Slag Mortar
Table 5
Loss rate of compressive strength of the carbonated AAS mortar.
| | | Carbonation | Compressive strength of mortar (MPa) | Area (mm2) | Compressive strength of product (MPa) |
Loss rate of compressive strength (/) | | | Period
(days) | Depth
(mm) | Before carbonation () | After carbonation () | Noncarbonation product () | Carbonation product () | Noncarbonation product () | Carbonation product () |
| | G7 | 7 | 4.0 | 36.7 | 33.7 | 736 | 1764 | 36.7 | 26.51 | 72.2% | | 14 | 9.7 | 39.6 | 32.0 | 1564 | 936 | 39.6 | 27.45 | 69.3% | | 21 | 10.8 | 42.5 | 28.9 | 1694 | 806 | 42.5 | 22.42 | 52.8% |
| | G5 | 7 | 8.0 | 26.4 | 22.0 | 1344 | 1156 | 26.4 | 18.22 | 69.0% | | 14 | 13.5 | 28.1 | 19.5 | 1971 | 529 | 28.1 | 17.19 | 61.2% | | 21 | 17.5 | 30.4 | 16.7 | 2275 | 225 | 30.4 | 15.35 | 50.5% |
| | G3 | 7 | 18.0 | 12.5 | 7.5 | 2304 | 196 | 12.5 | 7.07 | 56.6% | | 14 | 25.0 | 13.1 | 7.2 | 2500 | 0 | 13.1 | 7.20 | 55.0% | | 21 | 25.0 | 14.9 | 7.6 | 2500 | 0 | 14.9 | 7.60 | 51.0% |
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