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Table 2 Strain variation of single form-block.

From: Compression Behavior of Form Block Walls Corresponding to the Strength of Block and Grout Concrete

Block type

B1 series

B2 series

B3 series

B3 series

B1-1

B1-2

Avg.

B2-1

B2-2

Avg.

B3-1

B3-2

Avg.

B4-1

B4-2

Avg.

At ultimate state

Load, P bu (kN)

588.06

599.29

593.67

937.50

1031.60

984.55

1025.1

977.93

1,001.52

1030.10

1,119.21

1,074.66

Stress*, f bu (MPa)

23.56

24.01

23.79

37.56

41.33

39.45

41.07

39.18

40.13

41.27

44.84

43.06

Displacement δ bu (mm)

1.868

2.030

1.95

1.556

1.482

1.52

1.809

1.853

1.83

1.399

1.575

1.49

Strain+, ε bu (%)

1.01

1.10

1.05

0.84

0.80

0.82

0.98

1.00

0.99

0.76

0.85

0.80

At elastic end

Displacement δ by (mm)

1.133

1.373

1.25

1.305

1.006

1.16

1.628

1.235

1.43

1.064

1.349

1.21

Strain+, ε by (%)

0.61

0.74

0.68

0.71

0.54

0.63

0.88

0.67

0.77

0.58

0.73

0.65

Strain ratio

ε by /ε bu

0.607

0.677

0.643

0.839

0.679

0.761

0.900

0.667

0.782

0.760

0.857

0.811

  1. *Stress = Load/Flange area, + Strain = Displacement/height.