Skip to main content

Table 4 The basic parameter and bearing capacity of CB and GPC.

From: Flexural Behavior of Low Calcium Fly Ash Based Geopolymer Reinforced Concrete Beam

Beam designation

fcu (Mpa)

fc (Mpa)

ft (Mpa)

ρ (%)

Mcr (kN m) (theoretical)

Mcr (kN m) (experimental)

Mu (kN m) (theoretical)

Mu (kN m) (experimental)

Mcr/Mu

fmax (mm)

Ws (mm)

lm (mm)

CB-1

23.60

19.82

2.80

0.807

4.45

4.49

19.95

20.20

0.22

72

2.28

154.3

CB-1

22.80

19.38

2.45

0.807

3.93

20.15

0.19

69

2.46

156.7

CB-1

24.10

20.13

2.90

0.807

4.66

20.22

0.23

68

2.34

152.7

GPC-1

25.40

21.33

3.06

0.807

4.91

20.29

0.24

78

1.98

131.8

GPC-2

27.60

23.21

3.40

0.807

5.46

20.38

0.26

75

1.86

132.4

GPC-3

26.13

20.86

3.15

0.807

5.06

20.32

0.25

76

1.91

132.9

  1. fy is yield strength of steel, fu is the tensile strength of steel, fcu is cube compressive strength, fc is the compressive strength of prism and ft is the tensile strength of concrete, Mcr is the cracking bending moment, Mu is the ultimate bending moment, fmax maximum deflection, Ws is the maximum crack width, lm is the average crack space.