1. A series of Atterberg limit tests was performed on samples of a gray-brown silty clay. The tablebelow summarizes the results of four liquid limit tests. Using this data,Trial NumberNumber of blowsWeight of wet sample + container (g)Weight of dry sample + container (g)Weight of container (g)15.61 16.82 16.34a. Determine the flow curve for the soil (graph and show the equation of the best fit line)b. Determine the flow index for the soil12323632615.124c. Calculate the liquid limitd. Calculate the plasticity indexPlastic limit tests show an average of 38.5%.23.50 26.94 26.86 26.272119.89 22.10 22.59 21.96

Information required: (1) Flow curve: A flow curve is a straight line formed when a plot between…

1. A series of Atterberg limit tests was performed on samples of a gray-brown silty clay. The table below summarizes the results of four liquid limit tests. Using this data, 1 Trial Number Number of blows 36 Weight of wet sample + container (g) 23.50 26.94 26.86 26.27 Weight of dry sample + container (g) 22.10 22.59 21.96 Weight of container (g) 15.12 15.61 16.82 16.34 a. Determine the flow curve for the soil (graph and show the equation of the best fit line) b. Determine the flow index for the soil 23 19.89 2 c. Calculate the liquid limit d. Calculate the plasticity index Plastic limit tests show an average of 38.5%. 3 26 4 21

1. A series of Atterberg limit tests was performed on samples of a gray-brown silty clay. The table below summarizes the results of four liquid limit tests. Using this data, 1 Trial Number Number of blows 36 Weight of wet sample + container (g) 23.50 26.94 26.86 26.27 Weight of dry sample + container (g) 22.10 22.59 21.96 Weight of container (g) 15.12 15.61 16.82 16.34 a. Determine the flow curve for the soil (graph and show the equation of the best fit line) b. Determine the flow index for the soil 23 19.89 2 c. Calculate the liquid limit d. Calculate the plasticity index Plastic limit tests show an average of 38.5%. 3 26 4 21

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Hydraulic Conductivity

Section: Chapter Questions

Problem 6.17CTP

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Problem 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 27.0 Plastic limit tests: Students conducted two trials and found that PL= 17.2% for the 1st trial and PL = 17.8% for the second trial. Draw the flow curve and obtain the liquid limit. What is the plasticity index of the soil? (Hint: Use an average value of PL) Determine the flow index. Determine the liquidity index of the soil if the in-situ moisture content is 21%, and comment on the probable engineering behavior of this soil.
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During Atterberg limit tests in the soil mechanics laboratory, the students obtained the following results from a clayey soil.Liquid limit tests: 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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