Geology Reference
In-Depth Information
Table 18-2
Viscosity Corrections for
n
r
/
n
20
[2]
°C
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
10
1.3012
1.2976
1.2940
1.2903
1.2867
1.2831
1.2795
1.2759
1.2722
1.2686
11
1.2650
1.2615
1.2580
1.2545
1.2510
1.2476
1.2441
1.2406
1.2371
1.2336
12
1.2301
1.2268
1.2234
1.2201
1.2168
1.2135
1.2101
1.2068
1.2035
1.2001
13
1.1968
1.1936
1.1905
1.1873
1.1841
1.1810
1.1777
1.1746
1.1714
1.1683
14
1.1651
1.1621
1.1590
1.1560
1.1529
1.1499
1.1469
1.1438
1.1408
1.1377
15
1.1347
1.1318
1.1289
1.1260
1.1231
1.1202
1.1172
1.1143
1.1114
1.1085
16
1.1056
1.1028
1.0999
1.0971
1.0943
1.0915
1.0887
1.0859
1.0803
1.0802
17
1.0774
1.0747
1.0720
1.0693
1.0667
1.0640
1.0613
1.0586
1.0560
1.0533
18
1.0507
1.0480
1.0454
1.0429
1.0403
1.0377
1.0351
1.0325
1.0300
1.0274
19
1.0248
1.0223
1.0198
1.0174
1.0149
1.0124
1.0099
1.0074
1.0050
1.0025
20
1.0000
0.9976
0.9952
0.9928
0.9904
0.9881
0.9857
0.9833
0.9809
0.9785
21
0.9761
0.9738
0.9715
0.9692
0.9669
0.9646
0.9623
0.9600
0.9577
0.9554
22
0.9531
0.9509
0.9487
0.9465
0.9443
0.9421
0.9399
0.9377
0.9355
0.9333
23
0.9311
0.9290
0.9268
0.9247
0.9225
0.9204
0.9183
0.9161
0.9140
0.9118
24
0.9097
0.9077
0.9056
0.9036
0.9015
0.8995
0.8975
0.8954
0.8934
0.8913
25
0.8893
0.8873
0.8853
0.8833
0.8813
0.8794
0.8774
0.8754
0.8734
0.8714
26
0.8694
0.8675
0.8656
0.8636
0.8617
0.8598
0.8579
0.8560
0.8540
0.8521
27
0.8502
0.8484
0.8465
0.8447
0.8428
0.8410
0.8392
0.8373
0.8355
0.8336
28
0.8318
0.8300
0.8282
0.8264
0.8246
0.8229
0.8211
0.8193
0.8175
0.8157
29
0.8139
0.8122
0.8105
0.8087
0.8070
0.8053
0.8036
0.8019
0.8001
0.7984
30
0.7967
0.7950
0.7934
0.7917
0.7901
0.7884
0.7867
0.7851
0.7834
0.7818
31
0.7801
0.7785
0.7769
0.7753
0.7737
0.7721
0.7705
0.7689
0.7673
0.7657
32
0.7641
0.7626
0.7610
0.7595
0.7579
0.7564
0.7548
0.7533
0.7517
0.7502
33
0.7486
0.7471
0.7456
0.7440
0.7425
0.7410
0.7395
0.7380
0.7364
0.7349
34
0.7334
0.7320
0.7305
0.7291
0.7276
0.7262
0.7247
0.7233
0.7218
0.7204
35
0.7189
0.7175
0.7161
0.7147
0.7133
0.7120
0.7106
0.7092
0.7078
0.7064
Quantity of water discharged,
Q
250 cm
3
(same quantity for each
of three trials)
Total time of discharge,
t
65 s, 63 s, 64 s
(respective values for
each of three trials)
Water temperature,
T
23°C, 24°C, 24°C
(respective values for
each of three trials)
Additionally, specific gravity of the solids is known to be
2.71
from a
previous test.
[A] Unit Weight Determination
With the diameter of the soil specimen known, the cross-sectional area
A
can be determined:
D
2
4
(
10.16
)
2
4
A
81.07 cm
2
With
H
1
and
H
2
known, the height of the specimen can be determined,
and then its volume can be found:
Height of specimen
H
1
-
H
2
20.0
-
4.5
15.5 cm
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