Question

As per plasticity chart of indian soil classification system, the soil is of medium compressibility when the liquid limit is

Answer 1

it will be minimum compressible when liquid limit is low

Answer 2

The soil is of medium compressibility according to the Indian soil classification system when the liquid limit is 35% < LL< 50%.

Categorisation of soil -

• Soils are categorised into categories based on their size under the Indian Standard Soil Classification System (ISSCS).
• The groupings are further separated into coarse, medium, and fine sub-groups.

What is compressibility in soil?

• When a soil is exposed to a mechanical force, its compressibility measures how easily it shrinks in volume.
• Compression is the term used to describe the reduction in soil volume (soil densification) caused by an external load.

What is liquid limit ?

The liquid limit of a soil is a measurement of its compressibility.

Conclusion:

The soil is of medium compressibility according to the Indian soil classification system when the liquid limit is  35% < LL< 50% i.e. it is more than 35 percent but less than 50 percent.

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