Question

Consider the following statements:
1. In clay soils, the maximum dry unit weight tends to decrease as plasticity increases.
2. In clay soils, the maximum dry unit weight tends to increase as plasticity increases.
3. Heavy clays with high plasticity have the minimum dry unit weight and high OMC.
Which of these statements are correct?

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

Answer 1

The correct option is D 1 and 3 only

As plasticity increases in clay soils, the maximum dry unit weight decreases. Heavy clays of very high plasticity have very low dry unit weight and a very high OMC.