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Table 7 Compressive strength test results of specimens embedded with steel reinforcement.

From: The Effect of Rebar Embedment and CFRP Confinement on the Compressive Strength of Low-Strength Concrete

Specimen name

Compressive strength (MPa)

Specimen compressive strength at rebar slip (MPa)

The final output of rebar from the concrete body (mm)

Axial cracking strain (mm/mm, %)

Maximum of rebar axial strain (μstrain)

Axial ultimate strain (mm/mm, %)

Average of compressive strength (MPa)

C14.77D8L3.5-1

19.57

19.42

2.5

0.26

0.37

19.55

C14.77D8L3.5-2

19.53

19.12

3

0.24

650.7

0.36

C14.77D8L5.5-1

19.91

19.51

4

0.29

0.38

19.88

C14.77D8L5.5-2

19.86

18.76

4

0.3

753.4

0.39

C14.77D10L3.5-1

21.77

21.41

1.5

0.32

0.39

21.53

C14.77D10L3.5-2

21.29

21.01

1

0.33

536.5

0.4

C14.77D10L5.51

22.65

21.66

1.5

0.32

0.42

22.61

C14.77D10L5.5-2

22.57

21.70

1

0.33

536.5

0.41

C12.45D8L3.5-1

15.88

15.27

3

0.23

0.31

16.24

C12.45D8L3.5-2

16.21

15.61

2.5

0.21

519.5

0.33

C12.45D8L5.5-1

16.73

16.21

4

0.29

0.38

17.08

C12.45D8L5.5-2

17.06

16.56

4

0.31

572.5

0.39

C12.45D10L3.5-1

17.18

16.63

2

0.32

0.35

17.16

C12.45D10L3.5-2

17.14

16.58

2.5

0.3

395.7

0.36

C12.45D10L5.5-1

17.36

16.90

1.8

0.33

0.34

17.28

C12.45D10L5.5-2

17.25

16.74

2.2

0.29

343.2

0.32