Relationship between DN and G class for sealed roads

Material classification

Soaked CBR/DN

Approximate field DN—sealed road

Subgrade

Base, subbase and selected layers

Wet

Dry

Very dry

25% OMC

Dry

50% OMC

Moderate

75% OMC

Damp

OMC

G4

3.62

2.90

2.80

1.22

1.59

2.06

2.68

G5

5.70

3.62

3.45

1.50

1.95

2.53

3.30

G6

9.05

4.60

4.26

1.86

2.41

3.14

4.07

G7

13.53

5.70

5.24

2.24

2.90

3.77

4.93

G8

18.62

6.51

5.90

2.60

3.36

4.37

5.70

G9

24.65

7.27

6.65

2.97

3.81

4.93

6.51

G10

48.04

10.79

9.34

4.02

5.16

6.79

8.77