Principles of Foundation Engineering (MindTap Course List)
8th Edition
ISBN: 9781305081550
Author: Braja M. Das
Publisher: Cengage Learning
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Chapter 2, Problem 2.7P
To determine
Classify the soils by using unified soil classification system.
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Following 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.
2.6 The laboratory test results of six soils are given in the following table. Classify the
soils by the AASHTO Soil Classification System and give the group indices.
Sieve Analysis-Percent Passing
Soil
Sieve No.
C D
A
B
4
100
95
100
95
80
95
100
94
100
10
80
90
94
40
82
61
54
79
76
86
200
33
65
42
55
38
25
64
76
Liquid limit
Plastic limit
NP
35
38
52
26
NP
26
25
28
*NP = nonplastic
Classify all the soils in 5.8 using unified soil classification system. Give group symbols and the group names
Chapter 2 Solutions
Principles of Foundation Engineering (MindTap Course List)
Ch. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - Prob. 2.4PCh. 2 - Prob. 2.5PCh. 2 - Prob. 2.6PCh. 2 - Prob. 2.7PCh. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10P
Ch. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - For a normally consolidated soil, the following is...Ch. 2 - Prob. 2.17PCh. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Prob. 2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - Prob. 2.26PCh. 2 - Prob. 2.27P
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- The sieve analysis of four soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. Comment on the suitability of the soils as subgrade material. Sieve analysis (percent finer) Soil No. No. 10 No. 40 No. 200 Liquid limit Plastic limit 100 80 58 30 20 2 95 60 20 3 90 76 34 37 25 4 48 28 NP [Das B. M. Principles of Geotechnical Engineering (7E), pp. 101, 102, 112]arrow_forwardThe laboratory test results of six soils are given in the following table. Classify the soils by the AASHTO Soil Classification System and give the group indices. Sieve Analysis-Percent Passing Soil Sieve No. C D A в F 4 100 100 95 95 100 100 10 95 80 80 90 94 94 40 82 61 54 79 76 86 200 65 55 8 64 33 76 Liquid limit 42 38 NP* 35 38 52 Plastic limit 26 25 NP 26 25 28 *NP = nonplasticarrow_forwardRepeat Problem 2.11 with the following data. 2.11 The grain-size characteristics of a soil are given in the following table. 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 using the USDA system. d. Repeat Part b using the AASHTO system.arrow_forward
- Classify the soils given in Problem 2.6 by the Unified Soil Classification System and determine the group symbols and group names.arrow_forwardThe result of particle-size distribution of a soil sample is recorded below. Using the AASHTO classification table, determine the following: 1. Classification of soil A. 2. Classification of soil B. 3. Classification of soil C.arrow_forwardClassify the following soils by the AASHTO classification system. Give the group index for each soil. Sieve analysis- Percent finer Liquid limit Plasticity index Soil No. 10 No. 40 No. 200 A 98 80 72 52 21 90 74 58 38 12 84 71 64 41 14 D 100 78 82 32 12 E 80 68 48 30 11 © Cengage Learning 2014arrow_forward
- 1 The sieve analysis of four soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. Comment on the suitability of the soils as subgrade material. Sieve analysis (percent finer) Soil No. No. 10 No. 40 No. 200 Liquid limit Plastic limit 100 80 58 30 20 2 95 60 20 90 76 34 37 25 4 48 28 6 NParrow_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_forward5.3 Classify the following soils by the AASHTO classification system. Give the group index for each soil. Sieve analysis- Percent finer Liquid limit Plasticity index Soil No. 10 No. 40 No. 200 98 80 72 52 21 90 74 58 38 12 84 71 64 41 14 100 78 82 32 80 68 48 30 11 ABCDEarrow_forward
- 2. Classify the following soils by the AASHTO classification system. Give the group index for each soil. Show the step-by-step process of classifying each soil using the AASHTO table. Soil A B C Sieve analysis- Percent finer No. 40 No. 10 90 86 42 92 90 28 68 48 No. 200 32 8 12 30 22 Liquid 28 NP 18 42 Plasticity index 9 in oarrow_forwardClassify the following soils by the AASHTO classification system. Give the group index for each soil. Complete solution please with the tables and graphs.arrow_forwardThe result of sieve analysis of three soils is given next. It is required to classify these soils according to the AASHTO Classification System. Use the attached AASHTO Classification of Highway Subgrade Materials Table. (a) Classification of Soil A. (b) Classification of Soil B. (c) Classification of Soil C. Sieve Analysis Results for Situation 9 Sieve Analysis Sieve Diameter, Percent Passing Number mm. 4.76 90 100 100 8. 2.38 84 90 100 10 2. 72 77 98 20 0.84 66 59 91 40 0.42 58 50 85 60 0.25 50 42 79 100 0.149 44 36 70 200 0.074 38 33 LL 42 46 47 PL 23 29 24 63arrow_forward
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