2. The following table shows results of testing of two types of soil: W.% Soil G, S, PL A 2.22 25 0.95 0.35 22 B 2.72 38 1.01 0.62 26 C 2.66 45 0.92 0.80 35 Answer the question below: I. Which of these soils contains less clay particles? Note ** show in solution process answers Which of these soils has a less void ratio? Note ** show in solution process answers II. III. Which of these soils has a less dry density? Note ** show in solution process answers

2. The following table shows results of testing of two types of soil: W.% Soil G, S, PL A 2.22 25 0.95 0.35 22 B 2.72 38 1.01 0.62 26 C 2.66 45 0.92 0.80 35 Answer the question below: I. Which of these soils contains less clay particles? Note show in solution process answers Which of these soils has a less void ratio? Note show in solution process answers II. III. Which of these soils has a less dry density? Note ** show in solution process answers

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 4.5P: The following data were obtained by conducting liquid limit and plastic limit tests on a soil...

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Classify the soil using USCS for the data given: Sieve Size 4.75 mm, weight retained 20 g; Sieve Size 0.075 mm, weight retained 730 g; 1000 g of soil was used. LL=40 and PL= 18. What is the classification of soil. a. SM b. SC c. SC-SM d. GC
Laboratory tests performed on a saturated alluvial subgrade soil gave the following information: In situ water content = 11.9%, Specific gravity = 2.65, Soil size distribution: D100 = 51 mm, D75 = 30 mm, D60 = 20 mm, D45 = 15 mm, D30 = 8 mm, D10 = 4.76 mm, D8 = 2 mm, D4 = 0.08 mm, < 2 m = 4% a. Is this soil well graded? Classify it by the AASHTO and Unified systems b. Using the sieve analysis soil data and the classification systems, estimate for a total of 100% the approximate percentages of coarse aggregate (gravel), fine aggregate (sand), silts, and clays?
What is the correction factor for a soil with Gs=2.70? 0.99 1.03 2.70 None of the above
1. Why will bulk density vary between soils but it is valid to use a constant value for particle density (2.65 g cm-3)?
The values of liquid limit and plasticity index for soils having common geological origin in a restricted locality usually define (A) a zone above A-line. (B) a straight line parallel to A-line. (C) a straight line perpendicular to A line. (D) points may be anywhere in the plasticity chart.
Calculate the coefficient of gradation, Cc. ? Classify the soil by AASHTO and USCS system. (LL = 30, PL = 10) ? Use this given M=Mass of soil retained in pan +∑Mass reatianed in each sieve⇒M=617 gM=Mass of soil retained in pan +∑Mass reatianed in each sieve⇒M=617 g Sieve No. Opening Size (mm) Mass retained (g) %Mass retained=MiM×100=MiM×100 %Cumulative mass retained % Finer 4 4.750 28 =28617×100%=4.54%=28617×100%=4.54% 4.54 95.46 10 2.0 42 =42617×100%=6.81%=42617×100%=6.81% 11.35 88.65 20 0.850 48 =48617×100%=7.78%=48617×100%=7.78% 19.13 80.87 40 0.425 128 =128617×100%=20.74%=128617×100%=20.74% 39.87 60.13 60 0.250 221 =221617×100%=35.82%=221617×100%=35.82% 75.69 24.31 100 0.150 86 =86617×100%=13.94%=86617×100%=13.94% 89.63 10.37 200 0.075 40 =40617×100%=6.48%=40617×100%=6.48% 96.11 3.89 Pan 24 =24617×100%=3.89%=24617×100%=3.89% 100 0 Now, to plot the GSD curve, the % finer is kept on the vertical axis and the opening size are kept on the horizontal axis -…
A soil sample has a void ratio of 0.65, dry unit weight of 14.50 KN/m3, and water content of 8 percent. 1. Solve the Specific gravity of the soil sample. A. 2.78 B. 3.16 C. 2.44 D. 3.27 2. What is the moist unit weight in KN/m3when the degree of saturation is 54%? A. 59 B. 21.06 C. 18.37 D. 19.55 3. Determine the volume of voids if the total volume of the soil is 3.67 cu.m A. 43 B. 2.39 C. 1.82 D. 3.16
PROBLEM D Classify the following samples using USCS Method of Soil Classification. Determine the ff: 1. Coef. of Uniformity 2. Coef. of Curvature 3. Soil Classification
From a particle size distribution curve of a sandy soil the following were obtain: Size of particle 0.48 mm percentage finer 60;Size of particle 0.33 mm percentage finer 30,Size of particle 0.21 mm percentage finer 10;Size of particle 0.11 mm percentage finer 5. Classify the soil using USCS. Justify your answer. Oa, SP O b. SM O c. SC O d. SW
Subj: Soil Mechanics Specifications for a proposed earth fill require that a soil be compacted to 95% of Standard Proctor dry density. Tests on borrow material indicate maximum dry density equal to 124 lb/cu ft. at a optimum moisture content of 12% The borrow material in its natural condition has a void ratio of 0.60. Gs=2.65. Determine the relative compaction. a. 87.87% b. 83.48% c. 95.00% d. 92.76%
PROBLEM E Classify the following samples using USCS Method of Soil Classification. Determine the ff: 1. Coef. of Uniformity 2. Coef. of Curvature 3. Soil Classification
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.