Revised Rebound Hammer and Pull-Out Test Strength Curves for Fiber-Reinforced Concrete

Table 1

Properties of fiber materials used in the concrete specimens.

Fiber property	Polypropylene fiber	Carbon fiber
Length (mm)	9	10
Diameter (mm)	0.031	0.008
Tensile strength (MPa)	300	3500
Modulus of elasticity (GPa)	4	240