Table 1 Physical and chemical properties... | Emerald Publishing

Table 1

Physical and chemical properties of the soil samples

Property	Unit	S1	S2
Initial moisture content	%	22.9	98.9
pH	—	7.35	6.53
Specific gravity	—	2.77	2.8
Plastic limit	%	22.2	35.6
Liquid limit	%	41.6	80.7
Plasticity index	%	19.4	45.1
Shrinkage limit	%	6.2	15
USCS classification	—	CL	CH
Optimum moisture content	%	15.5	34.4
Maximum dry density	Mg/m³	1.76	1.31
Silicon dioxide (SiO₂)	%	36.71	42.46
Aluminium oxide (Al₂O₃)	%	27.18	22.65
Calcium oxide (CaO)	%	0.04	0.13
Magnesium oxide (MgO)	%	0.78	0.52
Iron (III) oxide (Fe₂O₃)	%	9.35	7.69
Potassium oxide (K₂O)	%	5.32	1.66
Sulfur trioxide (SO₃)	%	0.06	0.04

Property	Unit	S1	S2
Initial moisture content	%	22.9	98.9
pH	—	7.35	6.53
Specific gravity	—	2.77	2.8
Plastic limit	%	22.2	35.6
Liquid limit	%	41.6	80.7
Plasticity index	%	19.4	45.1
Shrinkage limit	%	6.2	15
USCS classification	—	CL	CH
Optimum moisture content	%	15.5	34.4
Maximum dry density	Mg/m³	1.76	1.31
Silicon dioxide (SiO₂)	%	36.71	42.46
Aluminium oxide (Al₂O₃)	%	27.18	22.65
Calcium oxide (CaO)	%	0.04	0.13
Magnesium oxide (MgO)	%	0.78	0.52
Iron (III) oxide (Fe₂O₃)	%	9.35	7.69
Potassium oxide (K₂O)	%	5.32	1.66
Sulfur trioxide (SO₃)	%	0.06	0.04

CH, high-plasticity clay; CL, low-plasticity clay; USCS, Unified Soil Classification System