Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion

Discussion Forum : Soil Mechanics and Foundation Engineering - Section 2 (Q.No. 21)
21.
The compression index of a soil
decreases with an increase in the liquid limit
increases with an increase in the liquid limit
decreases with an increase in the plastic limit
is not related with plastic limit.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
8 comments Page 1 of 1.

Lokesh said:   4 years ago
Cc= 0.009(LL-10) ; for undisturbed soil of medium sensitivity.
Cc= 0.007 (LL-7) ; for remoulded soil of low sensitivity.
Cc= 0.4(e-0.25); for undisturbed soil of medium sensitivity, where e= initial void ratio.
(4)

Pleo said:   6 years ago
Yes, correct @Abhisek.

The relation is: Cc = 0.007(LL-7).
(2)

Hatem said:   1 decade ago
Cc = 0.009(LL-10) for undisturbed clays.

Cc = 0.007(LL-10) for remolded Clays.

There are many other correlations for Compression Index which involve the in-situ void ratio, and in situ water content.
(1)

Pratima Yadav said:   1 decade ago
Compression index describes variation of void ratio as a function of the change of effective stress plotted in the logarithmic scale.

It therefore represents deformative characteristics of overconsolidated soil.

Typical range of compression index is 0.1 to 10.

CHAUDHARY said:   8 years ago
Cc=0.007(LL-7) CORRECT RELATIONSHIP.

Anne said:   8 years ago
What's the difference of 0.007(LL-7) and 0,007(LL-10)?

Abhishek said:   7 years ago
@Chaudhary.

The correct relation is Cc = 0.007(WL-10).

Anonymous said:   6 years ago
@Abhishek.

The correct relation is Cc = 0.007(WL-7) for remoulded clay.

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