Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Question
Chapter 5, Problem 5.6P
a)
To determine
Find the classification of the given soil using AASTHO soil classification.
b)
To determine
Find the classification of the given soil using unified soil classification system.
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5.6 For an inorganic soil, the following grain-size analysis is given.
U.S. sieve no.
Percent passing
4
100
10
90
20
64
40
38
80
18
200
13
For this soil, LL = 23 and PL = 19. Classify the soil by using
a. AASHTO soil classification system. Give the group index.
b. Unified soil classification system. Give group symbol and group name.
For an inorganic soil, the following grain size analysis is given
U.S sieve NO.
4
10
20
40
80
200
percent passing
100
90
64
38
18
13
For this soil , L.L = 23 and PL = 19 classify the soil according to:
a- The AASHTO soil classification system.
b- The unified soil classification system . Give group names and group
symbols.
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Chapter 5 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
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- AASHTO soil Classificationarrow_forwardFor an inorganic soil, the following grain-size analysis is given:Sieve No. % Passing4 10010 9020 6440 3880 18200 13For this soil, LL = 23% and PL = 19%. Classify the soil according to:a. The AASHTO soil classificationb. The Unified soil classification systemarrow_forwardFollowing details regarding the particle size distribution and other index properties pertinent to the classification of soil. Choose three soils and classify each soil according to USCS and AASHTO classification systems. When necessary, assume Cu = 4.48 and Cc = 1.22.arrow_forward
- Please solve number 3. Thank youuarrow_forwardFor an inorganic soil, the following grain-size analysis is given. For this soil, LL = 23 and PL = 19. Classify the soil by using Unified Soil Classification System. Give group names and group symbols.arrow_forwardPart 3 Classify the following soils using the Unified soil classification system. Give group symbols and group names. Sieve analysis (percent finer) Soil Liquid Plasticity No. No. 4 No. 200 limit limit Comments C, = 4.48 and C, = 1.22 1 94 3 NP 2 100 77 63 25 3 100 86 55 28 4 100 45 36 22 5 92 48 30 Table 5.2 Unified Soil Classification System (Based on Material Passing 76.2-mm Sieve) Group symbol Criteria for assigning group symbols Gravels C, 2 4 and 1s C, s 3 C. 3 PI 7 and plots on or above "A" line (Figure 5.3) Clean Gravels GW More than 50% Less than 5% fines GP of coarse fraction retained on No, 4 sieve Gravels with Fines GM GC Coarse-grained soils More than 12% fines More than 50% Clean Sands Less than 5% fines C, > 6 and 13 PI7 and plots on or above "A" line (Figure 5.3) retained on No. 200 Sands Sw SP sieve 50% or more of coarse fraction Sands with Fines SM passes No. 4 sieve More than 12% fines SC CL PI >7 and plots on or above "A" line (Figure 5.3) PI < 4 or plots below "A"…arrow_forward
- 5.4 Classify the following soils by using the Unified soil classification system. Give the group symbols and the group names. Sieve analysis- Percent finer Liquid limit Plasticity index C. Soil No. 4 No. 200 C, 1 70 30 33 21 2 48 20 41 22 3 95 70 52 28 4 100 82 30 19 5 100 74 35 21 6. 87 26 38 18 7 88 78 69 38 8 99 57 54 26 (table continues on next page) apter 5: Classification of Soil Sieve analysis- Percent finer Liquid limit Plasticity index C. Soil No. 4 Νo. 200 9 71 11 32 16 4.8 2.9 10 100 NP 7.2 2.2 11 89 65 44 21 12 90 8 39 31 3.9 2.1 © Cengage Leaming 2014arrow_forwardSubject: Geotechnical engineering Give me both solutions. Show me with clear stepsarrow_forward22. 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.arrow_forward
- . Classify the following inorganic soils by using the Unified Soil Classification System. Give the Group Symbols, but it is not necessary to go beyond that to the group name.arrow_forwardFor an inorganic soil, the following grain-size analysis is given. Knowing that the liquid limit is 23, and Plastic limit is 19. AASHTO soil classification system. Give the group index. I Unified soil classification system. Give group symbol and group name (specific classification). U.S. sieve no. Percent passing 4 100 10 90 20 64 40 38 80 18 200 13arrow_forwardthe grain-size curves for soils A and B is shown in the figure. it is required to classify the soils according to the unified soil classification system. use AASHTO classification system. what is the effective grain size of soil A? what is the coefficient of curvature of soil A? what is the classification of soil A according to AASHTO?arrow_forward
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