Effect of Pore-Water Salinity on the Electrical Resistivity of Partially Saturated Compacted Clay Liners

Table 2

Properties of testing soils [26, 27].

Properties	Kaolin	Bentonite
Liquid limit (%)	74	504
Plastic limit (%)	32	53
Gs	2.58	2.68
pH in water (28%–40% solid)	7	9.5
Cation exchange capacity (meq/100 g)	0.075	80
Total surface area (m^2/g)	20	750
Surface charge density (µC/m^2)	0.36	10.24
Optimum moisture content (%)	29	23
Main chemical composition (weight %)
SiO2	45.2	63.8
Al2O3	38.8	13.6