Figure A shows the particle size distribution curve for a well graded soil.Based on British standard. Determine the percentage of soil proportionFines = 37%, Sand = 43%, Gravel = 20%Fines = 2%, Sand = 72%, Gravel = 26%Fines = 2%, Sand = 74%, Gravel = 26%Fines = 37%, Sand = 85%, Gravel = 15%Soil Particle Size Distribution100100903020102 01Particle size0110gure AParticlen Si diatribution% of Passing

Fines = passing 0.075mm sieve Sand = between 2mm and 0.075mm Gravel = above 2mm

snows the particle size distr ror a well graded soll. Based on British standard. Determine the percentage of soil proportion O Fines 37%, Sand = 43%, Gravel = 20% O Fines = 2%, Sand = 72%, Gravel = 26% O Fines = 2%, Sand = 74%, Gravel = 26% Fines = 37%, Sand = 85%, Gravel = 15% Soil Particle Size Distribution

snows the particle size distr ror a well graded soll. Based on British standard. Determine the percentage of soil proportion O Fines 37%, Sand = 43%, Gravel = 20% O Fines = 2%, Sand = 72%, Gravel = 26% O Fines = 2%, Sand = 74%, Gravel = 26% Fines = 37%, Sand = 85%, Gravel = 15% Soil Particle Size Distribution

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter4: Plasticity And Structure Of Soil

Section: Chapter Questions

Problem 4.6P: Refer to the soil in Problem 4.5. Using the Casagrande plasticity chart, graphically estimate the...

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The grain-size characteristics of soil re given in the following table. Use Table 2.3 for the analysis. Size (mm) Percent finer 0.425 100 0.1 79 0.04 57 0.02 48 0.01 40 0.002 35 0.001 33 Table 2.3 Particle-Size Classifications Grain size (mm) Name of organization Gravel Sand Silt Clay Massachusetts Institute of Technology (MIT) >2 2 to 0.06 0.06 to 0.002 2 <0.002 76.2 to 2 2 to 0.075 0.075 to 0.002 <0.002 Fines (i.e., silts and clays) <0.075 76.2 to 4.75 4.75 to 0.075 Note: Sieve openings of 4.75 mm are found on a U.S. No. 4 sieve; 2-mm openings on a U.S. No. 10 sieve; 0.075-mm openings on a U.S. No. 200 sieve. See Table 2.5. i.) What is the percentages of gravel, sand, silt and clay according to the MIT system. a.) Gravel – 0%; Sand – 38%; Silt – 30%; Clay – 35% b.) Gravel – 0%; Sand – 37%; Silt – 30%; Clay – 35% c.) Gravel – 0%; Sand – 36%; Silt – 30%; Clay – 35% d.) Gravel – 0%; Sand – 35%; Silt – 30%; Clay – 35% e.) None of the above
The grain-size characteristics of soil re given in the following table. Use Table 2.3 for the analysis. Size (mm) Percent finer 0.425 100 0.1 79 0.04 57 0.02 48 0.01 40 0.002 35 0.001 33 Table 2.3 Particle-Size Classifications Grain size (mm) Name of organization Gravel Sand Silt Clay Massachusetts Institute of Technology (MIT) >2 2 to 0.06 0.06 to 0.002 2 <0.002 76.2 to 2 2 to 0.075 0.075 to 0.002 <0.002 Fines (i.e., silts and clays) <0.075 76.2 to 4.75 4.75 to 0.075 Note: Sieve openings of 4.75 mm are found on a U.S. No. 4 sieve; 2-mm openings on a U.S. No. 10 sieve; 0.075-mm openings on a U.S. No. 200 sieve. See Table 2.5. What is the percentages of gravel, sand, silt and clay according to the USDA system a.) Gravel – 0%; Sand – 38%; Silt – 26%; Clay – 35% b.) Gravel – 0%; Sand – 38%; Silt – 27%; Clay – 33% c.) Gravel – 0%; Sand – 38%; Silt – 26%; Clay – 34% d.) Gravel – 0%; Sand – 38%; Silt – 27%; Clay – 35% e.) None of the above
1. From the given soil samples below, (a) compute the effective size, uniformity coefficient, and coefficient of gradation (b) Determine the percent of gravel, sand, silt and clay of soil A using AASHTO Sieve size. 0.425 0.033 0.018 0.01 0.0062 0.0035 0.0018 0.001 Soil A Passing Finer (%) 100 90 80 70 60 50 40 35
Plot sieve size (x-axis) against % finer. Calculate for D60mm, D30mm and D10mm. Find the percentage of gravel, sand and fines. Find the CU (Coefficient of uniformity) and CC (coefficient of curvature). How does the particle size distribution of granular materials affect the properties of soil such as bulk density, permeability, and physical stability? Note the following: = D60/D10 and CC= D302 /D60 ×D10 See attached picture for information
Refer to the soil in Problem 4.5. Using the Casagrande plasticity chart, graphically estimate the shrinkage limit of the soil as shown in Figure 4.22. 4.5 The following data were obtained by conducting liquid limit and plastic limit tests on a soil collected from the site. Liquid limit tests: Plastic limit test: PL = 19.3% a. Draw the flow curve and determine the liquid limit. b. Using the Casagrande plasticity chart (Figure 4.21), determine the soil type.
The results of the particle-size analysis of the soil are as follows: Percent passing No. 10 sieve = 100; Percent passing No. 40 sieve = 80; Percent passing No. 10 sieve = 58.The LL and PI of minus No. 40 fraction of the soil are 30 and 10 respectively. Classify the soil by USCS system a. CH b. SP-SC c. CL-ML d. CL-ML
Q3- A sieve analysis on soil sample showed the following results; |Size, mm | 12 4.75 2.00 0.84 0.42 0.25 0.15 0.075 0.001 % finer 100 63 37 49 | 31 25 14 10 | 4 Plot the gradation curve and determine the weight of the gravel, sand, silt and clay if the total weight of the investigated soil mass is (1.3xN) kN. Show the plot and all calculation clearly. (N = 16 )
22. For a soil specimen, the following are given: % passing Sieve No. 4 = 92% % passing Sieve No. 10 = 81% % passing Sieve No. 40 = 78% % passing Sieve No. 200 = 65% LL = 48% PI = 32% a. Classify the soil by the AASHTO system. b. Classify the soil by the USCS.
EXERCICE 4 Sieve analysis was performed from which the results were summarized in the following table. 1 a) Plot the grain size curve b) Calculate the coefficient of uniformity and the coefficient of gradation. c) Give a first idea about the classification of such soil. U.S. Sieve Opening (mm) Mass retained in each sieve (gr) 1 20 4 4.750 10 2.000 40 20 0.850 60 40 0.425 89 60 0.250 140 80 0.180 122 100 0.150 210 200 0.075 56 Pan 12
PROBLEM1 The result of the sieve analysis is shown below: a. What is percentage of the soil is retained in no.200 sieve? b. What is the effective grain size of the soil in mm? c. Determine the uniformity coefficient. Sieve no Diameter (mm) Mass retained grams 4 4.76 25 8. 2.23 80 10 2.00 110 20 0.84 160 40 0.42 180 60 0.25 220 80 0.180 380 100 0.149 590 200 0.074 110 PAN 85
II. The grain size curve for soil sample is shown. 100 90 80 70 60 50 40 30 20 10 0 10 4. 5. 6. 1 Particle Size, mm. What is the effective grain size of the soil? What is the value of D60? 0.1 What is the value of the Coefficient of Gradation? 7. What is the value of the Coefficient of Uniformity? 8. What is the value of the Sorting Coefficient? Percent Finer, % 0.01
Q3 The results of a particle size analysis of a soil are given in the following Table. No Atterberg limit tests were conducted. Sieve No. Percent finer No.40 No.100 | No.200 49.8 No.4 No.10 No.20 70.2 62.5 9.53 mm 100 89.8 28.6 4.1 a) Would you have conducted Atterberg limit tests on this soil? Justify your answer. b) Classify the soil according to USCS and AASHTO. c) Is this soil a good foundation material? Justify your answer