Effect of Chromium Ion on the Strength Characteristics and Damage Law of Red Clay

Table 8

Strain threshold of chromium-contaminated red clay under different conditions (%).

Initial dry density (g/cm^3)	Chromium ion concentration (%)	100 kPa threshold	300 kPa threshold
1.35	0	2.008	2.099
	0.01	1.830	1.774
	0.05	1.830	1.774
	0.1	1.830	1.774
1.40	0	1.834	2.134
	0.01	1.834	2.021
	0.05	1.834	2.134
	0.1	1.834	2.134
1.45	0	2.113	2.334
	0.01	2.023	1.83
	0.05	1.771	2.137
	0.1	1.609	1.666