If unconfined compressive strength of a clay in undisturbed and remoulded state are 4.5 kg/cm² and 1.5 kg/cm² respectively, then the sensitivity of clay will be
- A2.0
- B3.0Correct
- C0.5
- D5.0
Solution
Concept
Sensitivity
Formula
St = qu (undisturbed) / qu (remoulded)
Step-by-step solution
1. St = 4.5 / 1.5 = 3.
Explanation
Sensitivity is the ratio of the unconfined compressive strength of a clay in its undisturbed state to that in the remoulded state at the same water content.
Shortcut
Sensitivity = undisturbed ÷ remoulded.
Common mistake
Inverting the ratio.
Correct answer: B) 3.0