2.10 A particle size analysis on a soil sample yields the fol-lowing data:Sieve no.3/8"4102060200PanSieve size (mm)Mass retained (grams)9.53 4.75 2.00.84 0.25 0.074310 580380 260 680210(a) Plot the particle size distribution curve.(b) Determine the amount of coarse-grained and fine-grained soils in the sample.2.11 The following results were obtained from sieve analysesof two soils:Sieve no.Opening (mm)Soil ASoil B44.75102.0020.248.2200.8525.719.6400.42540.460.31000.1518.137.22000.07527.222.1Pan68.25.6Hydrometer tests of these soils give the following re-sults: Soil A, % finer than 0.002 mm = 48%; Soil B, %finer than 0.002 mm = 2%.(a) Plot the gradation curve for each soil on the samegraph.(b) How much coarse-grained and fine-grained soilsare in each soil?(c) What are the percentages of clay and silt in eachsoil?(d) Determine D10 for each soil.(e) Determine the uniformity coefficient and the coef-ficient of concavity for each soil.(f) Describe the gradation curve (e.g., well graded) foreach soil.

Sieve No(mm) Mass Retained (grams) 9.53 0 4.75 310 2 580 0.84 380 0.25 260 0.074 680 -…

2.10 A particle size analysis on a soil sample yields the fol- lowing data: Sieve no. 3/8" 4 10 20 60 200 Pan Sieve size (mm) Mass retained (grams) 9.53 4.75 2.0 0.84 0.25 0.074 - 310 580 380 260 680 210 (a) Plot the particle size distribution curve. (b) Determine the amount of coarse-grained and fine- grained soils in the sample.

2.10 A particle size analysis on a soil sample yields the fol- lowing data: Sieve no. 3/8" 4 10 20 60 200 Pan Sieve size (mm) Mass retained (grams) 9.53 4.75 2.0 0.84 0.25 0.074 - 310 580 380 260 680 210 (a) Plot the particle size distribution curve. (b) Determine the amount of coarse-grained and fine- grained soils in the sample.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter2: Origin Of Soil And Grain Size

Section: Chapter Questions

Problem 2.6P: Repeat Problem 2.4 with the following data. 2.4 The following are the results of a sieve analysis....

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Repeat Problem 2.4 with the following data. 2.4 The following are the results of a sieve analysis. a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D10, D30, and D60 for each soil. c. Calculate the uniformity coefficient Cu. d. Calculate the coefficient of gradation Cc.
QUESTION 2 a. The results given in Table 1 were obtained in a particle size distribution test for soil sample received in the laboratory. Table 1 US Sieve No. Size Opening(mm) Weight Retained(g) 4 4.75 0 10 2.0 18.5 20 0.85 53.2 40 0.425 90.5 60 0.25 81.8 100 0.150 92.2 200 0.075 58.5 Pan - 26.5i. Determine the percentage passing each sieve and plot the particle size distribution curve. ii. How much fine-grained soils are in the sample ? iii. Determine the amount of gravel and sand in the sample ? iv. Determine D10, D30, and D60 from the grain-size distribution curve. v. Calculate the uniformity coefficient, Cu. vi. Calculate the coefficient of gradation, Cc. vii. Describe the gradation curve (eg poorly graded)
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