Question

The moisture content of a soil below which the soil volume becomes constant is called the

Answer 1

The ‘moisture content of a soil’ below which the ‘soil volume’ becomes constant is called the shrinkage limit.

Explanation:

• The shrinkage limit of soil is defined as the limit of water within the soil which is just right to fill all the pores of the soil.  

• It helps to keep the soil saturated. When the ‘water content’ is reduced below the ‘shrinkage limit’ the volume of the soil does not ‘decrease’.  

• Soils normally lose their moisture due to either natural or artificial reasons.  

• The shrinkage limit helps to determine how much moisture can the soil retains that can alter before any significant volume change.

Learn more about moisture content of a soil

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The optimum moisture content of a soil is 17% and its maximum dry density is 16.7 kn/m3. the specific gravity of soil is 2.7. determine the theoretical dry density (expressed in kn/m3) at omc corresponding to zero air voids. assume unit weight of water, γw = 10.0 kn/m3.

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Answer 2

The moisture content of a soil below which the soil volume becomes constant is called the Shrinkage limit.

Explanation:

• The Shrinkage limit is the amount of water content within the soil just enough to fill all the pores of the soil. At this point, the soil is saturated.
• As the soil loses moisture, capillaries form between individual soil particles and soil decreases in volume.
• But a point is reached where the decrease in moisture doesn’t effect the volume of the soil. This point is called Shrinkage limt.
• Beyond this limit, the volume of the soil doesn’t reduce, even if the moisture level drops.
• The Shrinkage limit helps us to know how much moisture the soil loses (or) retains, before a significant decrease in volume of the soil.

Learn more about the Shrinkage Limit.

State the alternate method to determine shrinkage limit of soil

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