Question

Unconfined compression test is most suitable for determining the
1. Sensitivity of clays
2. Settlement of embankments
3. 'Strength' of partially saturated clay sample
4. 'Strength' of fully saturated clay sample

• A. $1,2,3$ and $4$
• B. $2$ and $3$ only
• C. $3$ and $4$ only
• D. $1$ and $4$ only

Answer 1

The correct option is D $1$ and $4$ only

The unconfined compression test is a special form of a triaxial test in which the confining pressure is zero. The test can be conducted only on clayey soils which can stand without confinement.