Study on Influence of Brine Solution on swelling Behaviour of Expansive soil

Abstract

Abstract Clay soils show considerable variations in their behaviour with changes in the pore-fluids. Contaminations from potash industries and leakages from oil and gas industries, underground petrol storage tanks, nuclear repositories and leachates from municipal and hazardous waste landfills can often introduce new pore–fluids into the soil. Brine is a solution of salt in water and finds many commercial uses in industries. Sodium Chloride (NaCl) is one important constituent that can come into contact with soil from the above–mentioned sources. The present study aims at finding the physicochemical and index properties of brine – infused black cotton soils from Telangana region. Studies on the index properties of clay – brine interactions with different concentrations of NaCl solution (0.4M, 2M and 4M) indicate that brine contamination has noticeable effects even in lime modified soils.