Physical and Rheological Properties of Asphalt Binder Modified with Recycled Fibers

Table 3

Technical properties of polyester fibers [41].

	Property	Pavement requirements
Length (mm)	12 ± 2	≥3
Diameter (µm)	20 ± 2.5	20 ± 5
Strength (MPa)	500–680	≥500
Elongation at break (%)	15–35	≥15
Young’s modulus (GPa)	>13.5	-
Proportion	1.36	1.36 ± 0.05
Melting points (°C)	259	≥258