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Table 2 Performance index of carbon, polypropylene and aramid fiber.

From: Property Assessment of High-Performance Concrete Containing Three Types of Fibers

Fiber type Density Diameter Length Tensile strength Bending strength Modulus of elasticity Elongation at break Acid and Alkaline resistance Resistivity
(g/cm3) (μm) (μm) (MPa) (MPa) (GPa) (%) (Ω.cm)
Carbon fiber 1.78 6.9 4225 3422 837 241 1.25 strength 1.4 × 106
Polypropylene fiber 0.91 30.0 12,000 556 7 20.00 ± 5.00 strength 7.0 × 1019
Aramid fiber 1.44 10.0 9000 2842 686 110 4.40 strength 5.0 × 1019