Research Article
The Transformation and Leachability of Fly Ash/Cement Waste Forms Subjected to the Simultaneous Effect of Heat and Chemistry
Table 6
ADC of Cs+ (Dcs) and time for complete leaching (Tend).
| | Leaching conditions | Fly ash/cement waste forms | | Dcs (cm2/d) | Tend (d) |
| | 20°C | 0 M | 4.64 × 10−14 | 5.15 × 107 | | 0.6 M | 9.78 × 10−10 | 2.44 × 103 | | 1 M | 9.83 × 10−10 | 2.42 × 103 | | 3 M | 1.77 × 10−09 | 1.35 × 103 | | 5 M | 2.50 × 10−09 | 9.56 × 102 |
| | 40°C | 0 M | 3.31 × 10−12 | 7.22 × 105 | | 0.6 M | 2.72 × 10−09 | 8.79 × 102 | | 1 M | 2.21 × 10−09 | 1.08 × 103 | | 3 M | 3.38 × 10−09 | 7.06 × 102 | | 5 M | 4.77 × 10−09 | 5.00 × 102 |
| | 60°C | 0 M | 5.37 × 10−12 | 4.45 × 105 | | 0.6 M | 3.10 × 10−08 | 7.70 × 101 | | 1 M | 1.35 × 10−07 | 1.76 × 101 | | 3 M | 6.71 × 10−07 | 3.56 | | 5 M | 1.51 × 10−06 | 1.58 |
| | 80°C | 0 M | 1.58 × 10−11 | 1.51 × 105 | | 0.6 M | 6.40 × 10−09 | 3.73 × 102 | | 1 M | 5.85 × 10−09 | 4.08 × 102 | | 3 M | 8.13 × 10−09 | 2.94 × 102 | | 5 M | 1.08 × 10−08 | 2.22 × 102 |
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