Question

Consider the following statements:
1. If the soil is not black in colour, it is unlikely to be a swelling soil.
2. The swelling pressure of a fine-grained soil depends on its initially water content and density.
3. The swelling pressure of a fine-grained soil depends on the nature of the pore fluid.

Which of these statements are correct?

• A. 1, 2 and 3
• B. 1 and 2 only
• C. 1 and 3 only
• D. 2 and 3 only

Answer 1

The correct option is D 2 and 3 only

(d)
There are a lot of swelling soils which are brown or light coloured, even though most expansive soils are dark in colour.
Swelling pressure of a soil depends on lots of factors such as initial dry density,method of compaction, moisture content, height of specimen, surcharge pressure and nature of pore fluid.