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As per the Indian Standard soil classification system, a sample of silty clay with liquid limit of 40% and plasticity index of 28% is classified as
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- CH
- CI
- CL
- CL-ML
Correct Option: B
Since, wL is between 35 and 50. It is ‘intermediate’ soil (CI or MI).
Since PI is greater than 17 it is clayey soil
∴ The soil is CI
