Analysis of the Mechanical Properties and Mechanism of Zinc Ion-Contaminated Red Clay

Table 2

Shear strength and shear strength index.

Zinc ion concentration (%)	Shear strength (kPa)			Cohesion	Internal friction angle (°)
	100 kPa	200 kPa	300 kPa
0	84.48	110.89	142.55	44.20	13.32
0.1	47.47	80.48	109.91	13.48	14.11
0.2	42.62	72.61	103.89	9.49	13.88
0.5	40.40	69.21	98.40	9.22	13.27
1	36.99	65.08	92.22	7.8	12.75