Durability Analysis of Sludge Solidified with Soda Residue Subjected to Dry-Wet and Freeze-Thaw Cycles

Table 2

Basic characteristics of the sludge.

Parameters	Value
Moisture (%)	566
pH	6.45
Organic matter content (%)	35
Specific surface area (m^2/kg)	203.0
Atterberg limits	Liquid limit (%)		Plastic limit (%)		Plasticity index
	380.31		62.92		317.39
Main chemical compositions (%)	SiO2	P2O5	Al2O3	Fe2O3	CaO
	45.1	16.4	12.9	6.7	5.6
Heavy metals (mg/kg dry sludge)	Cu	Zn	Pb	Cd	Cr	Ni
	0.326	22.190	3.778	0.160	0.974	0.566