Effects of Nonaqueous Phase Liquids Pollution on the Permeability and Microstructure of In-Filed and Laboratory Soaked Contaminated Clay Soils

Table 9

Changes of clay porosity between TCE contaminated soils and uncontaminated soils.

Soil samples	Soil layer	The result value of mercury intrusion
		sample weight (g)	total volume of mercury (mL/g)	total pore surface area (m^2/g)	average pore diameter ()	Porosity (%)
Uncontaminated clay	Layer (2)	1.1792	0.2159	9.2350	0.0935	35.5756
	Layer (3)	0.7899	0.4876	6.0540	0.3222	54.2128
	Layer (4)	0.8404	0.3876	16.0010	0.0969	48.9643
	Layer (5)	0.7328	0.3823	12.3330	0.1240	49.9791
The filed contaminated clay of vinyl chloride and CH2ClCHCl2	Layer (2)	0.7379	0.3518	14.3610	0.9799	46.8538
	Layer (3)	0.7074	0.5345	4.9380	0.4330	53.3527
	Layer (4)	0.8290	0.3576	12.5630	0.1138	49.1841
	Layer (5)	0.7556	0.4165	18.8110	0.8857	51.6281
Indoor soaked contaminated clay of TCE	Layer (4)	0.8904	0.4000	7.882	0.2030	50.7780