Table 1 Basic physical index of loess from five sampling sites.

From: Correlation between clay activity and dynamic properties of intact loess: evidence from microstructure and water-retention capacity

Sampling site

Natural water content (%)

Natural dry density (g/cm3)

Particle grading characteristics

Specific gravity, ds

Consistency index

Clay activity, αc

Soil classification

Specific surface area, SSA (m2/g)

0.075–2.0 mm (%)

0.005–0.075 mm (%)

< 0.005 mm (%)

Liquid limit, wL (%)

Plastic limit wP (%)

Plasticity index, IP

BJ

16.1–19.9

1.53–1.62

5.97

(1.17)

75.12

(2.92)

18.91

(2.85)

2.69

(0.02)

34.8

(0.9)

19.3

(0.8)

15.6

(0.7)

0.82

(0.09)

CL

9.68

(1.09)

YL

16.6–18.9

1.58–1.62

4.88

(2.27)

75.36

(2.56)

19.76

(3.29)

2.70

(0.01)

34.5

(0.6)

19.7

(0.6)

14.8

(0.6)

0.75

(0.12)

CL

14.25

(1.69)

XY

17.3–20.2

1.56–1.66

5.62

(1.17)

72.78

(2.27)

21.60

(3.17)

2.70

(0.01)

32.7

(0.8)

18.9

(0.7)

13.8

(0.5)

0.64

(0.06)

CL

17.54

(0.98)

XA

15.6–19.5

1.58–1.63

6.35

(2.09)

71.12

(3.15)

22.53

(3.47)

2.70

(0.02)

34.6

(0.5)

21.1

(0.5)

13.5

(0.5)

0.60

(0.05)

CL

20.49

(2.35)

WN

16.2–18.7

1.55–1.67

2.94

(0.77)

72.23

(2.62)

24.83

(2.52)

2.71

(0.02)

32.1

(0.7)

20.2

(0.6)

11.9

(0.7)

0.48

(0.06)

CL

24.66

(1.44)

  1. Data given in the parentheses are the standard deviation of five replicate samples.
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