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Study on electrochemical hardening of marine clay.

Due to low strength and high compressibility characteristics, marine clay deposits of varying depth have become problematic for civil engineering construction. The present study is conducted to evaluate the effectiveness of electrochemical hardening of salt saturated marine clay. The change in strength characteristics has been achieved by using low voltage gradient and high current rate technique with the insertion of chemicals away from electrodes. The strength has altered significantly from 0.05 to 12 kg/sq.cm with limited electrical energy input. During the investigation, parameters such as temperature variation, void ratio, pH, specific conductivity and index properties are studied. X-ray and differential thermal analyses are conducted on limited samples. A platinum probe to measure the specific conductivity of the moist soil and a small vane shear equipment for measuring very low strengths are designed and fabricated specially for the study. More Info

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