Assessment of the Mechanical Properties of Sisal Fiber-Reinforced Silty Clay Using Triaxial Shear Tests

Table 4

Shear strength results obtained from the triaxial shear tests.

Fiber content	Nonreinforced soil		Fiber length
			5 mm		10 mm		15 mm
	𝐶 (kPa)	𝜑 (°)	𝐶 (kPa)	𝜑 (°)	𝐶 (kPa)	𝜑 (°)	𝐶 (kPa)	𝜑 (°)
0.50%	93	21.2	108	22.5	115	22.3	104	24.3
1.00%	93	21.2	111	25.9	114	26.0	113	25.4
1.50%	93	21.2	116	24.7	128	24.7	129	25.2