Problems5.1 Classify the following soil using the U.S. Department of Agriculture textural classi-fication chart.SollABсDESoll9SollABсDE101112Particle-sizedistribution (%)Sand20554550705.3 Classify the following soils by the AASHTO classification system. Give the groupindex for each soil.No. 1098908410080711008990Soll123954 1005100687788899Silt205Sleve analysis-Percent finerNo. 4080747135151511Sleve analysis-Percent finerNo.4 No. 2007030482070827426Sleve analysis-Percent finerNo. 4 No. 20026585.4 Classify the following soils by using the Unified soil classification system. Givethe group symbols and the group names.7868Clay60402035157857No. 20072586482484439Liquidlimit3233415230LiquidlimitLiquid Plasticitylimit Index353869545238413230PlasticityIndex16NP21312122281921183826PlasticityIndex21121412113.9C₂ C₂C₂Ce4.8 2.97.22.22.1(table continues on next page)

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5.1 Classify the following soil using the U.S. Department of Agriculture textural classi- fication chart. Soll A B C D E Particle-size distribution (%) Sand 20 55 45 50 70 Silt 20 5 35 15 15 Clay 60 40 20 35 15 um dua

5.1 Classify the following soil using the U.S. Department of Agriculture textural classi- fication chart. Soll A B C D E Particle-size distribution (%) Sand 20 55 45 50 70 Silt 20 5 35 15 15 Clay 60 40 20 35 15 um dua

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

Problems
5.1 Classify the following soil using the U.S. Department of Agriculture textural classi-
fication chart.
Soll
A
B
с
D
E
Soll
9
Soll
A
B
с
D
E
10
11
12
Particle-size
distribution (%)
Sand
20
55
45
50
70
5.3 Classify the following soils by the AASHTO classification system. Give the group
index for each soil.
No. 10
98
90
84
100
80
71
100
89
90
Soll
1
2
3
95
4 100
5
100
6
87
7
88
8
99
Silt
20
5
Sleve analysis-
Percent finer
No. 40
80
74
71
35
15
15
11
Sleve analysis-
Percent finer
No.4 No. 200
70
30
48
20
70
82
74
26
Sleve analysis-
Percent finer
No. 4 No. 200
2
65
8
5.4 Classify the following soils by using the Unified soil classification system. Give
the group symbols and the group names.
78
68
Clay
60
40
20
35
15
78
57
No. 200
72
58
64
82
48
44
39
Liquid
limit
32
33
41
52
30
Liquid
limit
Liquid Plasticity
limit Index
35
38
69
54
52
38
41
32
30
Plasticity
Index
16
NP
21
31
21
22
28
19
21
18
38
26
Plasticity
Index
21
12
14
12
11
3.9
C₂ C₂
C₂
Ce
4.8 2.9
7.2
2.2
2.1
(table continues on next page)

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