Table 2 Properties of fibers.
From: Reliability Assessment of HFRC Slabs Against Projectile Impact
Fiber type | Length (mm) | Shape | Section dimensions (mm) | Aspect ratio | Specific gravity | Tensile strength (MPa) | Modulus of elasticity (GPa) | Bond factor, k |
|---|---|---|---|---|---|---|---|---|
SF | 60 | Hooked ends | 0.75 \(\upphi\) (circular) | 80 | 7.85 | 1225 | 200 | 1 |
PP | 50 | Crimped | 1 × 0.6 (rectangular) | 57.2a | 0.9 | 550 | 4 | 1 |
KF | 45 | Plain | 0.50 \(\upphi\) (circular) | 90 | 1.45 | 3220 | 131 | 0.8 |