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Table 4 The parameters of steel fiber.

From: Experimental Study on Spall Resistance of Steel-Fiber Reinforced Concrete Slab Subjected to Explosion

No.

Shape

Length (mm)

Equivalent diameter (mm)

Length–diameter ratio

Tensile strength (MPa)

1

Corrugated shape

32

0.53

60

1200

2

Dumbbell shape

32

0.53

60

900

3

Hook-end shape

45

0.75

60

1000

4

Hook-end shape

32

0.53

60

1000

5

Hook-end shape

50

0.83

60

1000

6

Hook-end shape

45

1.13

40

1000

7

Hook-end shape

45

0.56

80

1000