Classify the following soils by using the Unified soil classification system. Give the group symbols and the group names. Sleve analysls- Percent finer Liquid Ilmit Plasticity Index C. Soll No. 4 No. 200 C, 1 70 30 33 21 22 28 48 20 41 95 70 52 100 82 30 19 100 74 35 21 87 26 38 18 38 69 54 88 78 99 57 26 2.9 2.2 6. 11 32 16 4.8 71 NP 7.2 10 100 11 89 65 44 21 8 39 31 3.9 2.1 90 5234 5678 9o=2
Classify the following soils by using the Unified soil classification system. Give the group symbols and the group names. Sleve analysls- Percent finer Liquid Ilmit Plasticity Index C. Soll No. 4 No. 200 C, 1 70 30 33 21 22 28 48 20 41 95 70 52 100 82 30 19 100 74 35 21 87 26 38 18 38 69 54 88 78 99 57 26 2.9 2.2 6. 11 32 16 4.8 71 NP 7.2 10 100 11 89 65 44 21 8 39 31 3.9 2.1 90 5234 5678 9o=2
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text: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
classification system (b) Unified Soil Classification System. Give group names
and group symbols.
Ans.: A-2-4(0), SM (Silty sand)
Civil Eng. Dept. - College of Eng.
Soil Mechanics
Assistant Prof. Dr. Ahmed Al-Obaidi
(72)
Dr. A
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