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 conditionsFly ash/cement waste forms
Dsr (cm2/d)Tend (d)

20 C0 M4.06 × 10−102.15 × 108
0.6 M7.01 × 10−51.24 × 103
1 M1.02 × 10−48.58 × 102
3 M1.62 × 10−45.38 × 102
5 M1.65 × 10−45.28 × 102

40 C0 M1.27 × 10−96.87 × 107
0.6 M2.42 × 10−43.60 × 102
1 M3.60 × 10−42.42 × 102
3 M6.05 × 10−41.44 × 102
5 M6.53 × 10−41.34 × 102

60 C0 M1.90 × 10−94.58 × 107
0.6 M3.67 × 10−42.37 × 102
1 M5.21 × 10−41.68 × 102
3 M1.04 × 10−38.38 × 101
5 M1.27 × 10−36.86 × 101

80 C0 M3.78 × 10−92.31 × 107
0.6 M5.87 × 10−41.49 × 102
1 M1.04 × 10−38.38 × 101
3 M2.09 × 10−34.17 × 101
5 M2.53 × 10−33.44 × 101