Engineering properties of a problematic CH soil has to improved. Which of the following ground improvement technique should be most preferrable?
- ALime stabilizationCorrect
- BCompaction using vibratory roller
- CCompaction using grid roller
- DNone of the above
Solution
Concept
Lime stabilisation
Step-by-step solution
1. CH (high plasticity clay) is best improved by lime.
Explanation
Lime reduces plasticity and swell.
Why the other options are wrong
Compaction alone does not suit CH.
Shortcut
CH → lime.
Correct answer: A) Lime stabilization