Comparative Experimental Study on Calcium Oxide, Calcium Hydroxide, and Calcium Carbonate Solidified Zinc-Contaminated Red Clay

Table 1

Basic physical properties of red clay.

Liquid limit (%)	Plastic limit (%)	Plasticity index	Optimum moisture content (%)	Maximum dry density (g cm^-3)	Specific gravity	pH
50.70	33.18	17.52	30.78	1.53	2.72	4.67