10.., The following are the characteristics of two soils. ClassifY the soils according tethe AASHTO system.Soil A:Percent passing No.4 sieve = 98Percent passing No.1 0 sieve = 90Percent passing No. 40 sieve = 76Percent passing No. 200 sieve = 34Liquid limit = 38Plastic limit = 26Soil B:Percent passing No.4 sieve = 100Percent passing No.1 0 sieve - 98Percent passing No. 40 sieve = 86Percent passing No. 200 sieve = 58Liquid limit = 49Plastic Limit = 28

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The following are the characteristics of two soils. ClassifY the soils according to the AASHTO system. Soil A: Percent passing No.4 sieve = 98 Percent passing No.1 0 sieve = 90 Percent passing No. 40 sieve = 76 %3D Percent passing No. 200 sieve = 34 Liquid limit = 38 Plastic limit = 26 Soil B: Percent passing No.4 sieve = 100 Percent passing No.1 0 sieve ~ 98 Percent passing No. 40 sieve = 86 Percent passing No. 200 sieve = 58 Liquid limit = 49 Plastic Limit = 28

The following are the characteristics of two soils. ClassifY the soils according to the AASHTO system. Soil A: Percent passing No.4 sieve = 98 Percent passing No.1 0 sieve = 90 Percent passing No. 40 sieve = 76 %3D Percent passing No. 200 sieve = 34 Liquid limit = 38 Plastic limit = 26 Soil B: Percent passing No.4 sieve = 100 Percent passing No.1 0 sieve ~ 98 Percent passing No. 40 sieve = 86 Percent passing No. 200 sieve = 58 Liquid limit = 49 Plastic Limit = 28

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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2. Prove n-e/(1+e) and e-n/(1-n) based on definitions of void ratio and porosity. 3. Classify the following soils according to the unified soil classification system: group symbols and typical names Soil A B Percent passing U.S. sieve No. 4 No. 10 No. 20 No. 40 No. 60 No. 100 No. 200 95 86 65 52 46 38 25 98 95 88 82 75 65 100 LL PL 38 65 22 58
Classify the following soil by the Unified Soil Classification System. Percent passing No. 4 sieve = 82Percent passing No. 10 sieve = 71Percent passing No. 40 sieve = 64Percent passing No. 200 sieve = 41Liquid limit = 31Plasticity index = 12
Classify the soil according to the USCS 1. Percent passing No. 4 Sieve = 70 Percent passing No. 200 Sieve = 30 Liquid Limit = 33 Plasticity Index = 12 2. Percent passing No. 10 Sieve = 100 Percent passing No. 40 Sieve = 80 Percent passing No. 200 Sieve = 58 Liquid Limit = 30 Plasticity Index = 10 Classify the soil according to AASHTO Description SOIL A SOIL B SOIL C Percent finer than No. 10 Sieve 100 95 88 Percent finer than No. 40 Sieve 80 75 Percent finer than No. 200 Sieve 58 34 Liquid Limit 30 60 39 Plasticity Index 10 40 12
4. Classify the following soil by the Unified Soil Classification System: Percent passing No.4 sieve = 82 Percent passing No.10 sieve = 71 Percent passing No.40 sieve = 64 Percent passing No. 200 sieve = 41 Plasticity index = 12 Liquid limit = 31
Classify the following soils by AASHTO classification system. Percent finer than (sieve analysis) Liquid Limit Plasticity Index Soil No. 4 No. 10 No. 40 No. 200 1 95 82 55 41 32 12 94 80 51 15 26 12 Silty-Clay Materials (more than 35 % passing No. 200 sieve) A-7 General Granular Materials Highly Organic Classification (35 % or less passing No 200 sieve) A-1 A-2 Group Classification A-1-a A-1-b A-3 A-2-4 A-2-5 A-2-6 A-2-7 A-4 A-5 A-6 A-7-5 A-8 A-7-6 Sieve Analysis percent passing: # 10 < 50 # 40 # 200 S 30 5 50 s 51 <15 25 $10 <35 35 s 35 35 236 2 36 2 36 236 Characteristics of fraction passing #40 Liquid limit Plasticity index < 40 241 40 241 NP3 <40 241 40 241 2 11 11 10 <10 211 211 < 10 <6 Stone <10 Usual types of signifcant constituent materials fragments; gravel and sand Fine Peat or sand Silty or clayey gravel and sand Sity soils Clayey soils muck General ratins as Excellent to good Fair to Poor Unstable subgrade VI VI VI VI VI
A 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 AASHTO system.Justify your answer. a. A-5 (6) b. A-6 (5) c. A-7-6 (20) d. A-4 (5)
Question 14 Classify the following soils using the Unified soil classification system. Give the group symbol. No. 4 = 100 No. 200 = 77 LL = = 63 PL 25 %D A) CL В ML MH CH
7. 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 C = 1.22. Your solution may be presented in similar form as what was included in your module 4. Sieve Analysis (Percent Finer) Soil No Liquid Limit Plastic Limit No. 10 No. 40 No. 200 1 98 80 50 38 29 2 100 92 80 56 23 3 100 88 65 37 22 4 85 55 45 28 20 5 92 75 62 43 28 6 48 28 6 N.A. NP 7 87 62 30 32 24 8 90 76 34 37 25 9 100 78 8 N.A. NP 10 92 74 32 44 35
1. Classify the following soils by using the USDA's textural classification chart. Soil Particle-size Distribution (%) A B C D E Soil A B C DE 2. Classify the foloowing soils according to the AASHTO classification system and give the group indices. Liquid Limit A B C D E Gravel 0 0 10 20 15 No. 10 92 90 100 72 100 No. 4 100 88 72 89 71 Sieve Analysis, % Finer No. 40 Sand 25 5 20 40 32 % Finer 81 70 92 61 85 No. 200 64 26 34 65 11 No. 200 52 34 78 33 71 Liquid Limit 28 38 29 44 32 Silt 65 7 35 22 25 Plastic Limit 10 20 14 23 16 29 37 61 35 55 3. Classify the following soils by using Unified Soil Classification System. Give the group symbols and the group names. Soil Uniformity Coefficient ---- ---- Clay 10 88 30 18 28 ---- 4.8 Plasstic Limit 16 3222 30 26 21 Coefficient of Gradation ---- ---- ---- ---- 2.9
Example#2 Classify Soils A and B as given in Example 9-1 and obtain the names. Assume Soil B to be inorganic. Soil A: Percent passing No. 4 sieve = Percent passing No. 10 sieve = Percent passing No. 40 sieve = Percent passing No. 200 sieve = 98 %3D 90 %3D 76 %3D 34 Liquid limit = 38 %3D Plastic limit 26 %3D
Classify the following soils by the AASHTO classification system. Description Percent finer than No. 10 sieve Percent finer than No. 40 sieve Percent finer than No. 200 sieve Soil A Soil B Soil C 100 92 94 82 38 81 85 51 52 Liquid limit Plastic Limit 42 29 43 23 16 34 Table 3.1: Classification of Highway Subgrade Materials General class fication Granular materials (35% or less of total sample passing No. 200) A-2 A-1 Group classification Sieve analysis (percentage passing) No. 10 No. 40 No. 200 Characteristics of fraction passing No. 40 Liquid limit Plasticity index Usual types of significant constituent materials A-1-a A-1-b A-3 A-2-4 A-2-5 A-2-6 A-2-7 50 max. 30 max. 50 max. 51 min. 15 max. 25 max. 10 max. 35 max. 35 max. 35 max. 35 max. 40 max. 41 min. 40 max. 41 min. 10 max. 10 max. 11 min. 11 min. 6 max. NP Stone fragments, gravel, and sand Fine sand Sity or clayey gravel and sand General subgrade rating Excellent to good What is the classification of Soil A? O A-5(3) A-7-5(3) O…
Classify the following soils using the Unified soil classification system. Give group symbols and group names. Sieve analysis (percent finer) Soil Liquid Plasticity limit No. No. 4 No. 200 limit Comments 1 94 3 NP C, = 4.48 and C. = 1.22 2 100 77 63 25 3 100 86 55 28 4 100 45 36 22 5 92 48 30 6 60 40 26 4 7 99 76 60 32