Geology Reference
In-Depth Information
Mass of specimen ring
100.50 g
Specific gravity of soil
2.72
At end of test:
Mass of entire wet specimen plus can
234.54 g
Mass of entire dry specimen plus can
203.11 g
Mass of can
127.17 g
[B] Time-versus-Deformation Data
Load increment from 0 to 500 lb/ft 2
Date
Time
Deformation Dial Reading (in.)
6/8/08
9:15 A . M .
0
9:15.1
0.0067
9:15.25
0.0069
9:15.5
0.0071
9:16
0.0077
9:17
0.0084
9:19
0.0095
9:23
0.0107
9:30
0.0120
9:45
0.0132
10:15
0.0144
11:15
0.0152
1:15 P . M .
0.0158
5:15
0.0160
6/9/08
8:15 A . M .
0.0162
11:15
0.0162
The time-versus-deformation data given in the preceding table are
for a loading increment from 0 to 500 lb/ft 2 . It would, of course, be nec-
essary to have additional sets of time-versus-deformation data for a
number of larger loading increments in order to complete a consolida-
tion test. However, in the interest of saving time and space, these addi-
tional sets of data are not shown in this example.
All of these (given) data are shown on forms prepared for recording
both collected laboratory data and computed results (see pages 308 to 311).
The reader is referred to these forms and the explanation of computations
that follows, in order to help in understanding the relatively extensive cal-
culations required for a consolidation test. (At the end of the chapter, blank
copies of these forms are included for the reader's use.)
[A] Specimen Parameters
At beginning of test:
1. Initial wet unit weight:
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