Refer to the soil in Problem 4.1. a. Determine the flow index. b. Determine the liquidity index of the soil if the in situ moisture content is 21%. 4.1 During Atterberg limit tests in the soil mechanics laboratory, the students obtained the following results from a clayey soil.

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Refer to the soil in Problem 4.1.
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Textbook Problem
Refer to the soil in Problem 4.1.
a. Determine the flow index.
b. Determine the liquidity index of the
soil if the in situ moisture content is
21%.
4.1 During Atterberg limit tests in the
soil mechanics laboratory, the students
obtained the following results from a
clayey soil.
Liquid limit tests:
Number of
Moisture
blows, N
content (%)
14
38.4
16
36.5
20
33.1
28
270
Plastic limit tests: Students conducted
two trials and found that PL = 17.2% for
the first trial and PL = 17.8% for the
second trial.
a. Draw the flow curve and obtain the
liquid limit.
b. What is the plasticity index of the
soil? Use an average value of PL from
the two plastic limit trails.
Transcribed Image Text:10:58 Refer to the soil in Problem 4.1. www.bartleby.com = bartleby a D Q&A Sign in Engineering / Civil Engineeri. / P./ Refer to the so.. : Refer to the soil in Problem 4.1... Textbook Problem Refer to the soil in Problem 4.1. a. Determine the flow index. b. Determine the liquidity index of the soil if the in situ moisture content is 21%. 4.1 During Atterberg limit tests in the soil mechanics laboratory, the students obtained the following results from a clayey soil. Liquid limit tests: Number of Moisture blows, N content (%) 14 38.4 16 36.5 20 33.1 28 270 Plastic limit tests: Students conducted two trials and found that PL = 17.2% for the first trial and PL = 17.8% for the second trial. a. Draw the flow curve and obtain the liquid limit. b. What is the plasticity index of the soil? Use an average value of PL from the two plastic limit trails.
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