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International Journal of Concrete Structures and Materials

Table 7 Ratio of experimental and code predicted bond strengths for LM and HM bars.

From: Bond Strength of GFRP Bars Embedded in Engineered Cementitious Composite using RILEM Beam Testing

Spec. ID

Ratio of τex/τpre (= r)

CSA S806-12 (2012)

CSA S6-06 (2006)

ACI 440.1R (2015)

Okelo and Yuan (2005)

Lee et al. (2008)

 

5D

7D

10D

5D

7D

10D

5D

7D

10D

5D

7D

10D

5D

7D

10D

Engineered cementitious composite (ECC) specimens

 HM bar

  ECC-12.7

1.96

1.55

1.24

2.79

2.21

1.77

1.14

1.18

1.22

2.56

2.03

1.63

1.66

1.32

1.05

  ECC-15.9

2.74

2.35

1.97

4.06

3.48

2.92

1.39

1.53

1.67

3.58

3.07

2.58

1.90

1.63

1.37

  ECC-19.1

2.25

2.07

1.85

3.43

3.16

2.82

1.03

1.23

1.41

2.96

2.73

2.43

1.36

1.25

1.12

 LM bar

  ECC-12.7

2.23

1.97

1.77

3.17

2.80

2.51

1.30

1.50

1.73

2.84

2.51

2.25

1.97

1.74

1.56

  ECC-15.9

2.46

2.16

1.96

3.62

3.18

2.89

1.25

1.42

1.67

3.02

2.65

2.41

1.79

1.58

1.43

  ECC-19.1

2.57

2.29

1.96

3.91

3.48

2.98

1.18

1.36

1.49

3.33

2.96

2.54

1.62

1.44

1.23

  Max

2.74

4.06

1.73

3.58

1.97

  Min

1.24

1.77

1.03

1.63

1.05

  Mean

2.08

3.07

1.37

2.67

1.50

Normal concrete (NC) specimens

 HM bar

  NC-15.9

2.05

1.84

1.44

3.13

2.79

2.19

0.80

0.94

0.95

2.42

2.16

1.69

1.32

1.18

0.92

  NC-19.1

1.55

1.48

1.45

2.46

2.34

2.29

0.55

0.69

0.88

1.87

1.78

1.74

0.89

0.84

0.82

 LM bar

  NC-15.9

2.37

2.22

1.78

3.56

3.33

2.67

1.05

1.29

1.34

2.76

2.58

2.07

1.62

1.52

1.22

  NC-19.1

1.65

1.57

1.43

2.55

2.43

2.20

0.64

0.80

0.94

1.96

1.88

1.70

0.98

0.94

0.85

  Max

2.37

3.56

1.34

2.76

1.62

  Min

1.43

2.19

0.55

1.69

0.82

  Mean

1.74

2.66

0.91

2.05

1.09

Overall statistics

 Mean

2.18

1.95

1.68

3.27

2.92

2.52

1.03

1.19

1.33

2.73

2.43

2.10

1.51

1.34

1.16

 SD

0.38

0.32

0.27

0.55

0.47

0.40

0.28

0.29

0.32

0.55

0.45

0.38

0.37

0.30

0.25

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