Classify the following soils using the Unified soil classification system. Give groupsymbols and group names.Sieve analysis(percent finer)SoilLiquidPlasticitylimitNo.No. 4No. 200limitComments1943NPC, = 4.48 and C. = 1.22210077632531008655284100453622592483066040264799766032

iLook at the % passing through sieve no 200=3<50%⇒COARSE GRAINED SOILiiLook at the % passing…

Answered: Classify the following soils using the…

Engineering

Civil Engineering

Classify the following soils using the Unifie symbols and group names.

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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Concept explainers

Soil classification and characteristics

Soil classification is a method of categorizing soil based on its properties, types, and uses. The motive of soil classification is to arrange various types of soils and divide them into groups for various engineering and agricultural purposes. Soil classification is carried out by various agencies as per their purposes. From an engineering perspective, soil classification is done to find out the suitability of soil for various construction purposes like the construction of dams, foundations, highways, infrastructures, and so on. For engineering purposes, the soil is classified by the following systems:

Question

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

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Classify the given soils using the Unified Soil Classification System (USCS). Give the group symbols and group names. (Show the path of the classification.) Sieve Analysis (percent finer) Soil No. No. 4 No. 200 LL PL Comments A 94 3 NP Cy = 4.48 and C = 1.22 - В 100 77 63 25 B.
4. The result of sieve analysis of three soils is given. It is required to classify these soils according to the AASHTO Classification system. Sieve No. 4 8 10 20 40 60 100 200 LL PL Diam. (mm) 4.760 2.380 2.000 0.840 0.420 0.250 0.149 0.074 SIEVE ANALYSIS Soll A 85 80 68 62 52 48 38 25 42 33 Percent Passing Soil B 98 90 85 78 62 55 50 45 45 37 Soil C 100 95 88 75 60 52 40 34 38 18
Q3- Use the soil properties given in Table below and classify the soil according to AASHTO and Textural System. Show all calculations and steps. Size, mm 37 12.5 4.75 0.6 0.3 0.15 0.075 0.008 0.0006 % finer 100 93 84 (50+17 49 45 41 34 | (10+17 4
2. The result of sieve analysis of three soils is given. It is required to classify these soils according to the AASHTO Classification System. Sieve No. 4 8 10 20 40 60 100 200 LL PL Diam. (mm) 4.760 2.380 2.000 0.840 0.420 0.250 0.149 0.074 SIEVE ANALYSIS Soil A 90 64 55 33 24 17 9 5 Percent Passing Soil B 100 90 77 59 50 42 36 33 46 29 Soil C 100 100 78 91 85 79 70 63 47 24 a. What is the classification of Soil A? b. What is the classification of Soil B? c. What is the classification of Soil C?
SIEVE ANALYSIS 1. From the result of sieve analysis and the grain size curves for soils 1 and 2. a. Compute the value of uniformity coefficient Cu. b. Classify soil No. 1 using USCS Method. c. Classify soil No. 2 using USCS Method. Sieve Number Diameter Percent Passing mm Soils 1 Soils 2 4. 4.760 100 90 8. 2.380 99 64 10 2.000 98 58 20 0.850 92 35 40 0.425 70 22 60 0.250 46 15 100 0.150 25 10 200 0.074 4
3. Classify the following soils using the Unified Soil Classification System. Give group symbols and group names. Sieve Analysis (percent finer) Liquid Plastic Soil No. Comments Limit Limit No. 4 No. 200 1 94 3 NP 100 77 63 25 3 100 86 55 28 Cu = 4.48 4 100 45 36 22 And Cc= 1.22 5 92 48 30 60 40 26 4 7 99 76 60 32
Classify the following soils by the Unified soil classification system. Give the group na soil Soil 1 2 Sieve analysis (percentage finer) Liquid Plastic No. 4 No. 200 limit limit 98 28.5 33.2 22.6 95 10 30 22 D10 D30 8 D60 0.085 0.12 0.135 Q1)
3.11 Classify the following soils by using the Unified soil classification system. Give the group symbols and the group names. Sleve analysls- Percent finer Liquld Ilmit Plasticity Index Soll No. 4 No. 200 C, C. 1 70 30 33 21 48 20 41 22 95 70 52 28 4 100 82 30 19 100 74 35 21 6. 87 26 18 38 69 88 78 38 8. 99 57 54 26 9. 71 11 32 16 4.8 2.9 10 100 2 NP 7.2 2.2 11 89 65 44 21 12 90 39 31 3.9 2.1 Ans.: 1. SC (clayey sand with gravel), 2. GC (Clayey Gravel with sand), 3. CH (sandy fat clay), 4. CL (Lean clay with sand), 5. CL (Lean clay with sand), 6. SC (CIlayey sand), 7. CH (sandy fat clay), 8. CH (sandy fat clay), 9. SP-SC (Poorly Graded sand with gravel and sand), 10. sW (Well-graded sand), 11.CL (Sandy lean clay), 12. SP-SC (Poorly Graded sand with gravel and sand) 3.12 For an inorganic soil, the following grain-size analysis is given. U.S. Percent Sleve No. 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…
Problem 2. The sieve analysis of ten soils and the liquid and plastic limits of the fraction pass- ing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. Soll No. 567699AWN. 4 8 10 No. 10 98 100 100 85 92 48 87 90 100 92 Sleve analysis (percent finer) No. 40 80 92 88 55 75 28 62 76 78 74 No. 200 50 80 65 45 62 6 30 34 8 32 Liquid limit 38 56 37 28 43 32 37 44 Plastic limit 29 23 22 20 28 NP 24 25 NP 35
Classify Soil C (group classification and group index) using AASHTO method. SOIL SAMPLE SIEVE NO. DIA. (mm) A В # 4 4.76 90 100 100 # 8 2.38 88 90 100 # 10 2 86 77 98 # 20 0.84 84 59 92 # 40 0.42 82 56 84 # 60 0.25 80 54 79 #100 0.15 78 51 75 #200 0.075 76 48 72 Characteristics of # 40 fraction LL 38 28 50 PL 30 45
Given the following Sieve Analysis and Atterberg limits results. Answer the following questions: 1- What is the effective diameter of this soil? 2- Calculate the uniformity coefficient and coefficient of gradation 3- Determine the percentage of Gravel, Sand, Fine soils according to USCS. 4- Classify the soil using AASHTO (with GI) & USCS (with group name). Diameter Sieve # % Passing 100 (тm) 90 4 4.75 96 80 3.35 90 70 10 78.8 60 20 0.85 56.8 50 40 0.425 37.8 40 60 0.25 23.6 30 100 0.15 13 20 200 0.075 4.6 10 Рan LL 10 10 0.1 0.01 Diameter PL 5 Percent Passing (%) 2.
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