Abstract

MgCl₂ is widely used on roads for controlling dust and humidity, reducing the scattering of coarse particles, anti-icing, and improving the geotechnical properties of “problematic soils” by chemical stabilization. In this study, we initially induced the MgCl₂ solution to electrokinetic stabilization. Six electrokinetic experiments were conducted on marine clayey soil, collected from Zhuhai, China, to investigate the feasibility using MgCl₂ solution as a green stabilizer in the electrokinetic stabilization process. The dewatering efficiency, unconfined compressive strength (UCS), anode corrosion and power consumption due to electrokinetic treatment were analysed. Up to 600% increases in UCS taken from the anode zones was observed after 7-days of curing. The results revealed that injecting of 0.8% MgCl₂ solution (by the dry wight of soil) at a constant concentration of 20% was the optimum amount for the electrokinetic stabilization of marine clayey soil from Zhuhai, and the higher concentration of MgCl₂ solution reduced the degree of anode corrosion.