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International Journal of Concrete Structures and Materials

Table 2 Mechanical properties of mixes at 28 days of curing

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

Group

Specimen ID

Compressive strength (MPa)

Splitting tensile strength (MPa)

Flexural strength (MPa)

Modulus of elasticity (GPa)

G1

NC-SF0.5

20.8

2.71

10.97

48.76

RC10-SF0.5

20.1

2.66

8.66

57.72

RC20-SF0.5

19.4

2.62

7.80

53.33

RC30-SF0.5

18.7

2.57

6.98

49.00

RC40-SF0.5

18.2

2.53

5.79

48.21

RC50-SF0.5

17.6

2.48

4.37

37.58

RC60-SF0.5

16.8

2.43

3.93

40.31

RC70-SF0.5

16.7

2.40

3.47

37.03

RC80-SF0.5

15.9

2.37

2.81

25.87

RC90-SF0.5

15.1

2.30

2.49

23.33

RC100-SF0.5

14.3

2.21

2.37

21.10

G2

NC-SF1.0

21.4

2.75

13.96

37.24

RC10-SF1.0

20.8

2.71

13.27

36.14

RC20-SF1.0

19.9

2.65

11.97

40.76

RC30-SF1.0

19.1

2.6

10.17

38.76

RC40-SF1.0

18.8

2.58

9.18

37.65

RC50-SF1.0

17.9

2.51

7.60

31.67

RC60-SF1.0

17.3

2.47

6.58

29.75

RC70-SF1.0

16.5

2.39

5.73

27.76

RC80-SF1.0

15.9

2.36

4.81

24.66

RC90-SF1.0

15.1

2.29

3.89

20.75

RC100-SF1.0

14.5

2.20

3.47

18.51

G3

NC-SF1.5

23.5

2.88

15.66

26.26

RC10-SF1.5

22.9

2.85

15.22

26.27

RC20-SF1.5

22.4

2.80

14.62

30.00

RC30-SF1.5

21.8

2.77

14.00

32.47

RC40-SF1.5

21.1

2.71

12.91

30.46

RC50-SF1.5

20.3

2.68

10.53

26.23

RC60-SF1.5

18.9

2.58

9.64

24.47

RC70-SF1.5

17.7

2.48

6.98

20.69

RC80-SF1.5

17.1

2.45

4.59

14.39

RC90-SF1.5

16.8

2.40

3.89

12.97

RC100-SF1.5

15.9

2.35

3.95

15.05

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