Research Article
The Transformation and Leachability of Fly Ash/Cement Waste Forms Subjected to the Simultaneous Effect of Heat and Chemistry
Table 5
ADC of Sr2+ (Dsr) and time for complete leaching (Tend).
| Leaching conditions | Fly ash/cement waste forms | Dsr (cm2/d) | Tend (d) |
| 20 C | 0 M | 4.06 × 10−10 | 2.15 × 108 | 0.6 M | 7.01 × 10−5 | 1.24 × 103 | 1 M | 1.02 × 10−4 | 8.58 × 102 | 3 M | 1.62 × 10−4 | 5.38 × 102 | 5 M | 1.65 × 10−4 | 5.28 × 102 |
| 40 C | 0 M | 1.27 × 10−9 | 6.87 × 107 | 0.6 M | 2.42 × 10−4 | 3.60 × 102 | 1 M | 3.60 × 10−4 | 2.42 × 102 | 3 M | 6.05 × 10−4 | 1.44 × 102 | 5 M | 6.53 × 10−4 | 1.34 × 102 |
| 60 C | 0 M | 1.90 × 10−9 | 4.58 × 107 | 0.6 M | 3.67 × 10−4 | 2.37 × 102 | 1 M | 5.21 × 10−4 | 1.68 × 102 | 3 M | 1.04 × 10−3 | 8.38 × 101 | 5 M | 1.27 × 10−3 | 6.86 × 101 |
| 80 C | 0 M | 3.78 × 10−9 | 2.31 × 107 | 0.6 M | 5.87 × 10−4 | 1.49 × 102 | 1 M | 1.04 × 10−3 | 8.38 × 101 | 3 M | 2.09 × 10−3 | 4.17 × 101 | 5 M | 2.53 × 10−3 | 3.44 × 101 |
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