Feasibility of Stabilized Zn and Pb Contaminated Soils as Roadway Subgrade Materials
Table 4
Parameters obtained from the simulated PSD curves of KMP and PC stabilized soils (6% cement, 28 days of curing) based on peak analysis.
Specimens
a1 (mL/g)
a2 (mL/g)
μ1
μ2
σ1
σ2
R2
Zn0Pb0 (KMP)
0.001
0.028
0.019
0.391
0.007
0.328
0.90
Zn0.5 (KMP)
0.001
0.027
0.019
0.395
0.007
0.320
0.91
Zn1.0 (KMP)
0.001
0.031
0.022
0.405
0.007
0.325
0.93
Zn1.5 (KMP)
0.002
0.033
0.028
0.423
0.012
0.286
0.92
Zn1.5Pb2 (KMP)
0.002
0.044
0.034
0.440
0.013
0.339
0.93
Pb2 (KMP)
0.001
0.033
0.022
0.416
0.008
0.327
0.93
Zn0Pb0 (PC)
0.001
0.026
0.021
0.411
0.009
0.265
0.90
Zn0.5 (PC)
0.001
0.028
0.024
0.435
0.010
0.279
0.94
Zn1.0 (PC)
0.001
0.033
0.028
0.448
0.007
0.322
0.94
Zn1.5 (PC)
0.002
0.044
0.031
0.461
0.012
0.323
0.92
Zn1.5Pb2 (PC)
0.003
0.048
0.040
0.485
0.019
0.280
0.91
Pb2 (PC)
0.002
0.037
0.022
0.477
0.009
0.310
0.94
n = number of peaks in the fitted PSD curves; a1 = volume of intra-aggregate pore; a2 = volume of interaggregate pore; μ1 = mean diameter of intra-aggregate pore; μ2 = mean diameter of interaggregate pore; σ1 and σ2 = standard deviation; R = correlation coefficient.
