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International Journal of Concrete Structures and Materials

Table 4 Fracture parameters of the notched beam samples with various steel fiber content

From: Experimental and Analytical Investigation of Fracture Characteristics of Steel Fiber-Reinforced Recycled Aggregate Concrete

Parameter

KIC

GF

lch

B

JIC

 

N/mm3/2

N/mm

m

 

N/mm

Notch

Concrete

Equation (1)

Equation (2)

Equation (3)

Equation (4)

Equation (5)

Equation (6)

Equation (7)

Equation (8)

Equation (9)

ID

G1

NC-SF0.5

80.66

27.61

44.11

13.34

8.56

59.22

8.86

0.05

0.17

RC10-SF0.5

63.65

14.28

23.20

7.02

8.36

58.30

5.73

0.05

0.11

RC20-SF0.5

57.34

12.12

20.38

6.16

8.15

57.35

4.79

0.05

0.11

RC30-SF0.5

51.33

10.45

17.78

5.38

7.94

56.39

3.99

0.05

0.10

RC40-SF0.5

42.53

6.85

12.40

3.75

7.79

55.69

2.83

0.05

0.09

RC50-SF0.5

32.12

4.44

9.07

2.74

7.61

54.84

1.68

0.06

0.09

RC60-SF0.5

28.89

3.53

6.85

2.07

7.37

53.68

1.41

0.06

0.07

RC70-SF0.5

25.52

2.74

5.81

1.76

7.34

53.53

1.13

0.06

0.07

RC80-SF0.5

20.68

2.84

5.47

1.65

7.09

52.34

0.76

0.06

0.08

RC90-SF0.5

18.33

2.37

4.76

1.44

6.84

51.11

0.64

0.06

0.08

RC100-SF0.5

17.45

2.14

4.77

1.44

6.58

49.85

0.62

0.07

0.08

G2

NC-SF1.0

102.66

56.97

93.56

28.30

8.73

60.00

13.94

0.05

0.28

RC10-SF1.0

97.52

52.77

87.02

26.32

8.56

59.22

12.95

0.05

0.27

RC20-SF1.0

87.99

32.53

62.79

18.99

8.30

58.03

11.03

0.06

0.22

RC30-SF1.0

74.79

28.43

47.72

14.43

8.06

56.94

8.28

0.05

0.19

RC40-SF1.0

67.46

22.09

39.96

12.09

7.97

56.53

6.84

0.05

0.18

RC50-SF1.0

55.87

19.53

32.59

9.86

7.70

55.27

4.96

0.05

0.18

RC60-SF1.0

48.40

14.97

26.02

7.87

7.52

54.41

3.84

0.05

0.16

RC70-SF1.0

42.09

11.93

21.10

6.38

7.28

53.24

3.10

0.05

0.15

RC80-SF1.0

35.34

7.60

16.75

5.07

7.09

52.34

2.24

0.07

0.14

RC90-SF1.0

28.60

6.00

13.03

3.94

6.84

51.11

1.56

0.07

0.14

RC100-SF1.0

25.52

4.39

11.63

3.52

6.65

50.16

1.35

0.08

0.14

G3

NC-SF1.5

115.12

106.60

166.83

50.46

9.32

62.64

15.98

0.05

0.44

RC10-SF1.5

111.90

98.80

157.56

47.66

9.15

61.90

15.41

0.05

0.43

RC20-SF1.5

107.50

80.72

127.36

38.52

9.01

61.27

14.74

0.05

0.36

RC30-SF1.5

102.95

66.77

107.90

32.64

8.84

60.51

13.81

0.05

0.32

RC40-SF1.5

94.88

58.98

97.72

29.56

8.64

59.61

12.26

0.05

0.31

RC50-SF1.5

77.43

39.41

75.58

22.86

8.41

58.56

8.35

0.06

0.30

RC60-SF1.5

70.83

34.40

67.79

20.50

8.00

56.67

7.54

0.06

0.29

RC70-SF1.5

51.33

15.68

42.10

12.73

7.64

54.98

4.28

0.08

0.25

RC80-SF1.5

33.73

8.30

26.13

7.90

7.46

54.12

1.90

0.10

0.23

RC90-SF1.5

28.60

2.03

20.85

6.31

7.37

53.68

1.42

0.31

0.22

RC100-SF1.5

29.04

1.98

18.53

5.60

7.09

52.34

1.53

0.28

0.19

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