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Table 1 Physical and mechanical indices of polypropylene fibers.

From: An Experimental Study of Shear Resistance for Multisize Polypropylene Fiber Concrete Beams

Fiber no. Equivalent diameter (μm) Length (mm) Tensile strength (MPa) Elastic modulus (GPa) Elongation at break (%) Density (g cm−3) Recommended dosage (kg m−3)
FF1 26.1 19 641 4.5 40 0.91 0.9
FF2 100 19 322 4.9 15 0.91 0.9
CF1 800 50 706 7.4 10 0.95 6.0