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Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN: 9780134746241
Author: Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher: PEARSON
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
Transcribed Image Text:100r
Percent finer by weight or mass
90
80
10
1
20
10
بیاہ
500
Sample No.
345
U.S. Standard sieve opening (in.)
U.S. Standard sieve numbers
6 4 3 2 ¹ 22 13 4 6 810 1416 20 30 40 50 70 100140200
Cobbles
100
Elev, or depth
12
50
Coarse
11
Gravel
10
។
Soil
5
ن...
Fine
Classification
Coarse
Gradation Curves
TTTT
0.5
Grain size (mm)
pues
Medium
Nat w%
LL
20
Soil
49
Fine
PL
15
47
24
ليلا
0.1
PI
5
NP
Soil
1
25
NP
0.05
Project
Area
Boring no.
Date
Hydrometer
Soil
0.01 0.005
Silt or clay
Ex. 3.1
9
fines are "Non-plastic" so they should be considered silty.
Note: For soil # 3, assume that the LL-90 and calculate PI. Soils listed as "NP" means the
20
0.001
90
Percent coarser by weight or mass
00
Classify according to AASHTO each of the five soils in the figure below.
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