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etween the bound water dielectric constant and the distance from the solid phase
surface is unknown.
Fig. 15.
Values of dielectric constant of bound water, ε bw , related to the distance, x, from the
phases interface
Or and Wraith [72] assume the exponential function, similar to the presented
below (Fig. 15):
ε (35)
bw = 80,2 − 77 ⋅e −kx
where k is the parameter influencing the change of ε bw with the distance of
water particles from the phases interface.
Fig. 16.
Effects of the 4-phase models for the investigated clay soils (Table 6, no. 10 and 11): A
– for model α, B - for de Loor model and C – effect of regression model (31) accounting
for soil bulk densities, the solid line represents model (31) for ρ = 1,42 [gcm -3 ]
40