4. A liquid limit test was conducted on a soil sample using multi point Casagrande approach and following results were obtained Number of blows (N) 10 | Water content (%) 19 23 27 | 40 45 40 36 25 60 a) Estimate the liquid limit of the soil b) Estimate the flow index c) If the plastic limit of the soil was obtained as 20.5%, will you expect brittle behavior at 27% of natural moisture content? YES / NO, with explanation

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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4. A liquid limit test was conducted on a soil sample using multi point Casagrande approach and following
results were obtained
Number of blows (N)
10 19 23 27
40
Water content (%)
60
45 40 36
25
a) Estimate the liquid limit of the soil
b) Estimate the flow index
c) If the plastic limit of the soil was obtained as 20.5%, will you expect brittle behavior at 27% of
natural moisture content? YES / NO , with explanation
Transcribed Image Text:4. A liquid limit test was conducted on a soil sample using multi point Casagrande approach and following results were obtained Number of blows (N) 10 19 23 27 40 Water content (%) 60 45 40 36 25 a) Estimate the liquid limit of the soil b) Estimate the flow index c) If the plastic limit of the soil was obtained as 20.5%, will you expect brittle behavior at 27% of natural moisture content? YES / NO , with explanation
3. A sample of soil of mass 500 gm was shaked through a set of sieves and following results were obtained
Opening size (mm)
4.75
Mass retained (gm)
2.0
14.8
0.85
98
0.425
90.1
0.15
181.9
0.075
108.8
pan
6.1
a) Plot particle size distribution curve
b) Determine Cu and Ce values
c) Classify the soil based on BIS classification system
Transcribed Image Text:3. A sample of soil of mass 500 gm was shaked through a set of sieves and following results were obtained Opening size (mm) 4.75 Mass retained (gm) 2.0 14.8 0.85 98 0.425 90.1 0.15 181.9 0.075 108.8 pan 6.1 a) Plot particle size distribution curve b) Determine Cu and Ce values c) Classify the soil based on BIS classification system
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