Geology Reference
In-Depth Information
Soils Testing Laboratory
Permeability Test:
Constant-Head Method
2
SR1820
Sample No.
Project No.
Southport
B-5
Location
Boring No.
3 ft
5/26/08
Depth of Sample
Date of Test
John Doe
Tested by
Brown sand with trace of mica
Description of Soil
[A] Unit Weight Determination
11.43
(1)
Length between manometer outlets, L
cm
10.16
cm
(2)
Diameter of soil specimen, D
i.e.,
p
D
2
4
81.07
cm
2
(3)
Cross-sectional area of soil specimen
c
d
20.0
cm
(4)
Height, H
1
4.5
cm
(5)
Height, H
2
15.5
cm
(6)
Height of specimen (i.e., H
1
H
2
)
1,256.6
cm
3
(7)
Volume of specimen [(3)
(6)]
3,200
g
(8)
Mass of air dried soil before compaction, M
1
1,102.5
g
(9)
Mass of unused remaining portion of soil after compaction, M
2
2,097.5
(10)
Mass of soil specimen (air dried) [(8)
(9)]
g
c
(10)
104.2
lb/ft
3
(11)
Unit weight of soil specimen (air dried)
(7)
62.4
d
1.52
(12)
Water content of air dried soil
%
3-B
(a)
Can no.
299.41
g
(b)
Mass of air-dried soil
can
295.82
g
(c)
Mass of oven-dried soil
can
59.39
(d)
Mass of can
g
3.59
(e)
Mass of water
g
236.43
g
(f)
Mass of oven-dried soil
c
(e)
1.52
%
(g)
Water content
(f)
100
d
1
11
2
102.6
lb/ft
3
(13)
Dry unit weight of soil specimen
c
100
100
d
1
12
2
2.71
(14)
Specific gravity of soil
(13)
0.6067
ft
3
(15)
Volume of solids
c
d
(14)
62.4
0.3933
ft
3
(16)
Volume of voids [1
(15)]
c
(16)
(15)
0.648
(17)
Void ratio, e, of soil specimen
d
265
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