Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 2.9P
Repeat Problem 2.8 using the following data.
2.8 The following are the results of a sieve and hydrometer analysis.
a. Draw the grain-size distribution curve.
b. Determine the percentages of gravel, sand, silt and clay according to the MIT system.
c. Repeat Part b according to the USDA system.
d. Repeat Part b according to the AASHTO system.
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5. The results of a particle size analysis of a soil are given in the following table. The Atterberg
limit tests yielded LL=62, PL = 20.
Sieve Opening (mm)
Percent Coarser by Weight
Sieve No.
4.75
5.1
10
2.00
10.0
20
0.85
0.425
40.7
40
70.2
84.8
90.5
60
0.25
100
0.15
200
Pan
0.075
100
a) Draw the gradation curve for this soil
b) Determine the uniformity coefficient and the coefficient of curvature
c) Classify the soil using USCS and ASSHTO
d) Rate this soil as a subgrade for highway construction
The following are the results of a sieve and hydrometer analysis.
Analysis
Sieve number/grain size
Percent finer
Sieve
40
100
80
97
170
92
200
90
Hydrometer
0.04 mm
74
0.015 mm
42
0.008 mm
27
0.004 mm
17
0.002 mm
11
a. Draw the grain-size distribution curve.
b. Determine the percentages of gravel, sand, silt and clay according to the
MIT system.
c. Repeat Part b according to the USDA system.
d. Repeat Part b according to the AASHTO system.
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
Chapter 2 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Ch. 2 - For a gravel with D60 = 0.48 mm, D30 = 0.25 mm,...Ch. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - The following are the results of a sieve analysis....Ch. 2 - Repeat Problem 2.4 with the following data. 2.4...Ch. 2 - Repeat Problem 2.4 with the following data. 2.4...Ch. 2 - Repeat Problem 2.4 with the following data. 2.4...Ch. 2 - The following are the results of a sieve and...Ch. 2 - Repeat Problem 2.8 using the following data. 2.8...Ch. 2 - Repeat Problem 2.8 using the following data. 2.8...
Ch. 2 - The grain-size characteristics of a soil are given...Ch. 2 - Repeat Problem 2.11 with the following data. 2.11...Ch. 2 - Repeat Problem 2.11 with the following data. 2.11...Ch. 2 - A hydrometer test has the following result: Gs =...Ch. 2 - Repeat Problem 2.14 with the following values: Gs...Ch. 2 - Three groups of students from the Geotechnical...Ch. 2 - Refer to Problem 2.C.1. Results of the sieve...
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- Repeat Problem 2.8 using the following data. 2.8 The following are the results of a sieve and hydrometer analysis. a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt and clay according to the MIT system. c. Repeat Part b according to the USDA system. d. Repeat Part b according to the AASHTO system.arrow_forwardComplete the table below and determine the percentages of gravel, sand, silt, and clay based on MIT, AASHTO, USDA, and USCS. Use logarithmic interpolation if needed. SIEVE SIZE (mm) 0.25 0.149 0.074 0.052 0.02 0.01 0.004 0.001 Pan WEIGHT RETAINED 18.96 33.18 45.03 54.51 42.66 11.85 4.74 4.74 21.33 CUMULATIVE WEIGHT RETAINED PERCENT PASSINGarrow_forwardCompute for the percent gravel, sand and finer as per USCS-ASTM A soil specimen (SOIL A) was subjected to mechanical analysis via sieve analysis experiment. Make the necessary calculations and draw the particle distribution curve. Sieve # Mass of Soil on each Sieve Sieve Opening Size 4 4.75 10 54 20 65 0.85 40 60 0.425 60 127 0.25 80 186 0.18 100 150 0.15 200 89 0..075 PAN 27 n/aarrow_forward
- The results of the sieve analysis done on a soil are shown below. Sieve No. Diameter Soil A 4 4.760 89 6 2.380 70 10 2.000 63 20 0.840 55 40 0.420 40 60 0.250 31 100 0.149 20 200 0.074 4 LL 60 PL 40 Determine its classification using USCS. SW None of the above GW SP GParrow_forwardThe following data are the results of a sieve analysis. Determine the percentage of silt and clay combined using Unified Classification System. Mass of soil Sieve no. Opening retained (mm) on each sieve 4 4.75 21.5 10 2 18.5 20 0.85 53.2 40 0.425 90.5 60 0.25 81.8 100 0.15 92.2 200 0.075 58.5 Pan 26.5 Select one: O a. 6 b. 19 c. 58 d. 17 e. none of the choicesarrow_forwardThe following data are the results of a sieve analysis. Determine the percentage of silt and clay combined using Unified Classification System. Mass of soil Sieve no. Opening retained (mm) on each sieve 4 4.75 21.5 10 2 18.5 20 0.85 53.2 40 0.425 90.5 60 0.25 81.8 100 0.15 92.2 200 0.075 58.5 Pan 26.5 Select one: а. 19 b. none of the choices С. 6 d. 17 e. 58arrow_forward
- 2.8 2.7 The following are the results of a sieve and hydrometer analysis. Sieve number/ grain size Analysis Sieve Hydrometer Analysis Sieve 40 80 170 200 0.04 mm 0.02 mm 0.01 mm 0.005 mm 0.0015 mm Hydrometer Sieve number/ grain size Percent finer than a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system. c. Repeat Part b according to the USDA system. d. Repeat Part b according to the AASHTO system. Repeat Problem 2.7 with the following data: 20 30 40 60 80 200 0.05 mm 0.03 mm 0.015 mm 0.006 mm 0.004 mm 0.0015 mm 100 96 85 80 59 39 26 15 8 Cengage Learning 2014 Percent finer than 100 96 90 76 65 34 27 19 11 7 6 5 Ⓒ Cengage Learning 2014arrow_forwardThe results of the sieve analysis done on a soil are shown below. Sieve No. Diameter Soil A 4 4.760 89 6 2.380 70 10 2.000 63 20 0.840 55 40 0.420 40 60 0.250 31 100 0.149 20 200 0.074 4 LL 60 PL 40 Determine its classification using USCS.arrow_forward200 pan 44 22arrow_forward
- The following are the results of a sieve and hydrometer analysis: Sieve number/ Percent finer than Analysis grain size Sieve 20 100 30 96 40 90 60 76 80 65 200 34 Hydrometer 0.05 mm 27 0.03 mm 19 0.015 mm 0.006 mm 7 0.004 mm 0.0015 mm 5 a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system. c. Determine the percentages of gravel, sand, silt, and clay according to the USDA system. d. Determine the percentages of gravel, sand, silt, and clay according to the AASHTO system.arrow_forwardQuestion 44 The given data shows a sieve analysis of a soil sample. Classify the soil using AASHTO Method. Tables are provided below. Sieve No. Diameter (mm) Percent Passing No 4 4.760 99 No. 8 2.380 91 No. 10 2.000 90 No. 20 0.840 85 No. 40 0.420 81 No. 60 0.250 79 No. 100 0.150 67 No. 200 0.075 60 Characteristics of No. 40 Fraction LL 39 PL 32 General classification Granular materials (35% or less of total sample passing No. 200) A-1 A-2 Group classification Sieve analysis (percent passing) No. 10 A-1-a A-1-b A-3 A-2-4 A-2-5 A-2-6 A-2-7 50 max. 30 max. 15 max. No. 40 50 max. 25 max. 51 min. 10 max. No. 200 35 max. 35 max. 35 max. 35 max. Characteristics of fraction passing No. 40 Liquid limit Plasticity index 40 max. 10 max. 41 min. 40 max. 11 min. 41 min. 11 min. 6 max. NP 10 max. Usual types of significant constituent Stone fragments, gravel, and sand Fine Silty or clayey gravel and sand sand materials ESC F4 FS F6 F7 FB F9 & 61 A4TECH Y P G J K 国 因arrow_forwardThe following are the results of a sieve analysis: a. Determine the percent finer than each sieve and plot a grain-size distributioncurve. b. Determine D10, D30, and D60from the grain-size distribution curve. c. Calculate the Cu and Cc Please kindly solve a, b and c... Help me urgent Thank youarrow_forward
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