Question

The maximum water content at which a reduction in water content will not cause a decrease in volume of soil mass is called

Answer 1

The maximum water content at which a reduction in water content will not cause a decrease in volume of soil mass is called shrinkage limit

Answer 2

The shrinkage limit is the maximum water content at which a reduction in water content will not cause a decrease in the volume of soil mass.

• The shrinkage limit, or SL, is the moisture content at which a fine-grained soil does not change its volume upon drying; the moisture loss is made up for by air absorbed through the pores of the soil.
• A disturbed or undisturbed soil sample can be used in a laboratory to make the determination.
• The volume of the soil solids remains constant during the shrinkage process, and the volume of the soil sample at the SL is equal to the total volume of oven-dried soil.
• The volume reduction is brought about by a reduction in the volume of voids.

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