Classify the soils by AASHTO classification system. Sol Sample Dia. (mm) 4.76 Percent 100 100 100 finer than No. 4 sieve Percent 2 92 98 finer than No. 10 sieve Percent 0.42 53 51 84 finer than No. 40 sieve Percent 0.074 17 33 63 finer than No. 200 sieve Liquid 36 46 47 imit Plastic 20 28 24 imit 14. What is the classification of soil A? a. A-2-6(5) c. A-1-a(0) b. A-2-6(0) d. A-2-7(2) 15. What is the classification of soil B? a. A-2-7(1) C. A-2-6(4) b. А-2-5(1) d. A-2-4(3) 16. What is the classification of soil C? b. A-5(8) d. A-7-6(12) a. A-4(6) С. А-7-5(10)
Classify the soils by AASHTO classification system. Sol Sample Dia. (mm) 4.76 Percent 100 100 100 finer than No. 4 sieve Percent 2 92 98 finer than No. 10 sieve Percent 0.42 53 51 84 finer than No. 40 sieve Percent 0.074 17 33 63 finer than No. 200 sieve Liquid 36 46 47 imit Plastic 20 28 24 imit 14. What is the classification of soil A? a. A-2-6(5) c. A-1-a(0) b. A-2-6(0) d. A-2-7(2) 15. What is the classification of soil B? a. A-2-7(1) C. A-2-6(4) b. А-2-5(1) d. A-2-4(3) 16. What is the classification of soil C? b. A-5(8) d. A-7-6(12) a. A-4(6) С. А-7-5(10)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:SITUATION 3:
The following are data's taken from
sieve analysis of three soil samples.
Classify the soils by AASHTO
classification system.
Sol Sample
Dia.
(mm)
4.76
Percent
100
100
100
finer than
No.
4
sieve
Percent
92
77
98
finer than
No. 10
sieve
Percent
0.42
53
51
84
finer than
No.
40
sieve
Percent
0.074
17
33
finer than
No. 200
sieve
Liquid
36
46
47
limit
Plastic
imit
20
28
24
14. What is the classification of soil A?
b. A-2-6(0)
d. A-2-7(2)
a. A-2-6(5)
c. A-1-a(0)
15. What is the classification of soil B?
a. A-2-7(1)
c. A-2-6(4)
b. A-2-5(1)
d. A-2-4(3)
16. What is the classification of soil C?
b. A-5(8)
d. A-7-6(12)
a. A-4(6)
A-7-5(10)
2.
Transcribed Image Text:AASHTO TABLE 3.1
A
B
E
F
H
J
K
Silt-clay Materials
(more than35% of total sample passing No.200)
A-5
General classification
Granular Materials
(35% or less of total sample passing No.200)
Group
A4
A-6
A-7
classification
A-1
А-2
А-7-5°
A-7-6
А-1-а
A-1-b
А-3
A-2-4
А-2-5
A-2-6
A-2-7
Sieve Analysis(percentage
passing)
No.10
No.40
No.200
50 max
30 max
50 max
51 min
15 max
25max
10max
35max
35max
35max
35max
36 min
36min
36min
36min
Characteristics of fraction
passing No.40
Liquid Limit
Plasticity Index
40max
41min
40max
41min
40max
41min
40max
41min
6 mаx
NP
10max
10max
11min
11min
10max
10max
11min
11min
Usual types of significant
constituent material
Silty soils
Silty or clayey gravel and sand
Clayey soils
Stone fragments,
gravel and sand
Fine
Sand
Excellent
to good
General Subgrade rating
Fair to poor
For A-7-5, PI < LL-30
ForA-7-6, PI >LL-30
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