Question

A saturated specimen of clay was immersed in mercury and displaced volume was 21.8 cc. The weight of the sample was 32.2 gm. After oven drying for 48 hours, weight reduced to 20.2gm while volume came down to 11.6 cc. The shrinkage limit of the soil is

• A. 7.9 %
• B. 8.0%
• C. 8.9%
• D. 9.8%

Answer 1

The correct option is C 8.9%

(c)
Mass of water in initial condition

= 32.2 - 20.2 = 12 gm

Loss of water from original to shrinkage limit

= (21.8 - 11.6 ) $\times$1 = 10.2 gm
Shrinkage limit$=\frac{32.2-20.2-10.2}{20.2}\times 100=8.91\simeq 8.9\%$