Study on Tensile Damage Constitutive Model for Multiscale Polypropylene Fiber Concrete

Table 1

Physical and mechanical properties of polypropylene fiber.

Fiber number	Diameter; (mm)	Length; (mm)	Tensile strength; (MPa)	Modulus of elasticity; (Gpa)	Elongation; (%)	Density; (g/cm^3)
FF1	0.026	12	641	4.5	40	0.91
FF2	0.1	19	322	4.9	15	0.91
CF1	0.8	50	706	7.4	10	0.95

Note: FF: fine polypropylene fiber; CF: course polypropylene fiber.