General classification Granular materials (35% or less of total sample passing No. 200) A-2 A-1 Group classification A-1-a A-1-b A-3 A-2-4 A-2-5 A-2-6 A-2-7 Sieve analysis (percent passing) No. 10 No. 40 50 max. 30 max. 15 max 50 max. 25 max. 51 min. 10 max. No. 200 35 max. 35 max. 35 max. 35 max. Characteristics of
General classification Granular materials (35% or less of total sample passing No. 200) A-2 A-1 Group classification A-1-a A-1-b A-3 A-2-4 A-2-5 A-2-6 A-2-7 Sieve analysis (percent passing) No. 10 No. 40 50 max. 30 max. 15 max 50 max. 25 max. 51 min. 10 max. No. 200 35 max. 35 max. 35 max. 35 max. Characteristics of
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:constituent
materials
Excellent to good
General subgrade
rating
General classification
Silt-clay materials (more than 35% of total sample passing No. 200)
A-7
A-7-5
A-7-6
Group classification
A-4
A-5
A-6
Sieve analysis (percent passing)
No. 10
No. 40
No. 200
36 min.
36 min.
36 min.
36 min.
Characteristics of fraction
passing No. 40
Liquid limit
Plasticity index
40 max.
10 max.
41 min.
10 max.
40 max.
41min
11 min.
11 min.
Usual types of significant
constituent materials
Silty soils
Clayey soils
General subgrade rating
Fair to poor
"For A-7-5, PI < LL
30
For A-7-6. PI> LL – 30
O A. A-6(4)
О В. А 4(3)
OCA-4(4)
O D. None of these.
O E. A-6(3)
A Moving to another question will save this response.
Transcribed Image Text:Question 44
The given data shows a sieve analysis of a soil sample. Classify the soil using AASHTO Method. Tables are provided below.
Sieve No. Diameter (mm) Percent Passing
No 4
4.760
99
No. 8
2.380
91
No. 10
2.000
90
No. 20
0.840
85
No. 40
0.420
81
No. 60
0.250
79
No. 100
0.150
67
No. 200
0.075
60
Characteristics of No. 40 Fraction
LL
39
PL
32
General classification
Granular materials (35% or less of total sample passing No. 200)
A-1
A-2
Group classification
Sieve analysis
(percent passing)
No. 10
A-1-a
A-1-b
A-3
A-2-4
A-2-5
A-2-6
A-2-7
50 max.
30 max.
15 max.
No. 40
50 max.
25 max.
51 min.
10 max.
No. 200
35 max.
35 max.
35 max.
35 max.
Characteristics of
fraction passing
No. 40
Liquid limit
Plasticity index
40 max.
10 max.
41 min.
40 max.
11 min.
41 min.
11 min.
6 max.
NP
10 max.
Usual types of
significant
constituent
Stone fragments,
gravel, and sand
Fine
Silty or clayey gravel and sand
sand
materials
ESC
F4
FS
F6
F7
FB
F9
&
61
A4TECH
Y
P
G
J
K
国
因
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