Table 1 Physical properties of selected soil.

From: IoT based soil moisture measurement and type prediction using advanced regression and machine learning models

Soil type

USCS Class

% Fines

% Sand

Bulk density

Sp. gravity

\(D_{50}\)

Cu

Cc

    

(g/cc)

 

(mm)

  

Sand 1

SW-Well graded

0.42

99.58

1.88

2.67

0.439

4.65

1.29

Sand 2

SP-Poorly graded

1.51

98.50

1.75

2.64

0.268

2.58

1.05

Sand 3

SP-Poorly graded

2.06

97.95

1.74

2.63

0.190

2.03

1.20

Sand 4

SP-Poorly graded

6.30

93.71

1.70

2.63

0.138

1.91

0.97

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