Table 2 Varying CBR values with reinforcement addition

Non-reinforced

14.64

15 mm × 15 mm square reinforcement (5 mm spacing)

1 mm

18.58

26.91

1.26

30 mm × 30 mm square reinforcement (10 mm spacing)

1 mm

26.08

78.14

1.78

30 mm × 30 mm square reinforcement (5 mm spacing)

1 mm

30.41

107.71

2.07

15 mm × 15 mm square reinforcement (5 mm spacing)

Twisted 2 mm

18.0

22.95

1.22

30 mm × 30 mm square reinforcement (10 mm spacing)

Twisted 2 mm

18.68

27.59

1.27

30 mm × 30 mm square reinforcement (5 mm spacing)

Twisted 2 mm

23.35

59.49

1.59

15 mm × 15 mm square reinforcement (5 mm spacing)

2 mm

23.94

63.52

1.63

30 mm × 30 mm square reinforcement (10 mm spacing)

2 mm

28.22

92.75

1.92

30 mm × 30 mm square reinforcement (5 mm spacing)

2 mm

34.89

138.31

2.38

One reinforcement at center

1 mm

16.64

13.66

1.13

Two reinforcements at diametrically opposite

1 mm

19.90

35.92

1.35

Four reinforcements at diametrically opposite

1 mm

21.89

49.52

1.49

Four reinforcements at diametrically opposite and one at center

1 mm

22.77

55.53

1.55

One reinforcement at center

Twisted 2 mm

16.0

9.28

1.09

Two reinforcements at diametrically opposite

Twisted 2 mm

18.83

28.26

1.28

Four reinforcements at diametrically opposite

Twisted 2 mm

20.82

42.21

1.42

Four reinforcements at diametrically opposite and one at center

Twisted 2 mm

23.26

58.87

1.58

One reinforcement at center

2 mm

21.36

45.90

1.54

Two reinforcements at diametrically opposite

2 mm

21.45

46.51

1.46

Four reinforcements at diametrically opposite

2 mm

22.28

52.18

1.52

Four reinforcements diametrically and one at center

2 mm

24.23

65.50

1.65