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

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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)
Transcribed Image Text: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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