3. The following results were obtained from a liquid limit test on a clay using Casagrande's cup device. # of blows 12 28 32 w (%) 52.5 47.1 43.2 38.6 37 Determine the liquid limit of this clay a) b) If the natural water content is 38% and the plastic limit is 23%, calculate the liquidity index and the consistency index. c) Describe the soil based on the consistency index d) Do you expect a brittle type of failure for this soil? If so – why/ why not?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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3. The following results were obtained from a liquid limit test on a clay using Casagrande's
cup device.
# of blows
12
28
32
w (%)
52.5
47.1
43.2
38.6
37
Determine the liquid limit of this clay
a)
b) If the natural water content is 38% and the plastic limit is 23%, calculate the liquidity
index and the consistency index.
c) Describe the soil based on the consistency index
d) Do you expect a brittle type of failure for this soil? If so – why/ why not?
Transcribed Image Text:3. The following results were obtained from a liquid limit test on a clay using Casagrande's cup device. # of blows 12 28 32 w (%) 52.5 47.1 43.2 38.6 37 Determine the liquid limit of this clay a) b) If the natural water content is 38% and the plastic limit is 23%, calculate the liquidity index and the consistency index. c) Describe the soil based on the consistency index d) Do you expect a brittle type of failure for this soil? If so – why/ why not?
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