From: Effect of Contents, Tensile Strengths and Aspect Ratios of Hooked-End Steel Fibers (SFs) on Compressive and Flexural Performance of Normal Strength Concrete
Designation
Length (mm)
Diameter (mm)
Aspect ratio (l/d)
Tensile strength (MPa)
NSF64
35
0.55
64
1100
NSF67
60
0.90
67
1200
NSF80
0.75
80
HSF64
2000
HSF67
2400
HSF80
2100
NSF/HSF64
NSF/HSF67
NSF/HSF80