Investigation of the Performance of the Ecofriendly Fiber-Reinforced Asphalt Mixture as a Sustainable Pavement Material

Table 5

Improvement of asphalt mixture performance by addition of different fibers.

Types of fibers	Optimum fiber content (%)	Improvement of asphalt mixture performance						Reference
		Dynamic stability (times/mm)	Max. bending stress (MPa) (%)	Max. tensile strain (με) (%)	TSR (%)	Fatigue life
						Stress ratio	Number of fatigue life cycles (%)
CSWF	0.4	+44.16	+17.0	+13.9%	86.7	0.3	+54.2%	This paper
Brucite fiber	0.4	+53.8	+23.4	+13.0%	87.5	0.3	+18.3%	[13]
Lignin fiber	0.35	+8.4	+11.7	+6.0%	68.0	0.3	+68.1%	[29]
Diatomite + glass fiber	0.2 + 0.3	+77.4	+9.6	+26.2%	—	0.4	+114.3%	[30]
Basalt fiber	0.4	+82.5	+22.5	—	93.0	—	—	[8]
Polyester fiber	0.35	+19.5	+8.1	+4.0%	77.5	0.3	+59.8%	[29]
Polyacrylonitrile fiber	0.35	+32.5	+6.4	+2.0%	75.5	0.3	+130.0%	[29]