Table 1.

Investigation on the mechanical behavior of fiber-reinforced soil.

Fiber Type		Fiber Tensile Strength	Host Material	Reinforcement effect	Reference
Synthetic Fibers	Polypropylene fibers	120 MPa	Clay	The inclusion of fibers increasing peak and residual shear strength, unconfined compressive strength, and the optimum fiber content around 0.4–0.8% of the weight	Pradhan et al. (2012)
	Polypropylene fibers	350 MPa	Clayey soil	Improvement in soil resistance and the brittleness index	Plé and Lê (2012)
	Short discrete polypropylene fiber	350 MPa	Clay	Significantly increasing soil tensile strength and soil tensile failure ductility	Li et al. (2014)
	Basalt fibers	3200 MPa	Biocemneted silica sand	The sand unconfined compressive strength, splitting tensile strength, and peak failure state strain rising with increasing fiber content	Xiao et al. (2019)
	Glass fibers	1700 MPa/3500 MPa	Lean clay	Fibers improving the unconfined compressive strength and the optimum glass fiber content at 0.75%	Sujatha et al. (2021)
	Carbon fibers	3500 MPa	Biocemneted silica sand	Unconfined compressive strength increasing with fiber content	Lv et al. (2021)
Natural fibers	Oil palm empty fruit bunch fibers (OPEFB)	283 MPa	Silty sand	OPEFB significantly improving the shear strength of silty sand	Ahmad et al. (2010)
	Coir fibers	NAa	Sand	Cyclic stiffness of sand increasing with the content of coir fibers	(Sridhar and Prathap Kumar, 2018)
	Banana fibers	NAa	Gravelly sand stabilized with sodium silicate	The plasticity index, unconfined compressive strength, shear strength, splitting tensile strength increasing with the banana fiber content.	Gobinath et al. (2020)

^aNA: Not applicable.