4.C.2 Liquidity index, LI, defined by Eq. (4.26), can indicate probable engineering behavior depending on the natural or current state of moisture content. For Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203 example, the material behavior can vary from a brittle solid (LI < 1) to vis- cous fluid (LI> 1), with an intermediate plastic state (0
4.C.2 Liquidity index, LI, defined by Eq. (4.26), can indicate probable engineering behavior depending on the natural or current state of moisture content. For Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203 example, the material behavior can vary from a brittle solid (LI < 1) to vis- cous fluid (LI> 1), with an intermediate plastic state (0
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:4.C.2 Liquidity index, LI, defined by Eq. (4.26), can indicate probable engineering
behavior depending on the natural or current state of moisture content. For
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
example, the material behavior can vary from a brittle solid (LI < 1) to vis-
cous fluid (LI> 1), with an intermediate plastic state (0 <LI < 1). From the
plasticity characteristics and ranges of moisture contents listed in the follow-
ing table,
a. Determine the range of liquidity index for each soil over the range of
moisture content.
b.
Comment on the probable engineering behavior of each soil as the mois-
ture content changes (refer to Figure 4.1).
Soil
1
2
3
4
5
6
7
% Clay fraction
(<2μm)
34
44
54
81
28
67
72
Natural moisture
content, w, (%)
59-67
29-36
51-56
61-70
441-600
98-111
51-65
Liquid limit,
LL (%)
References
49
37
61
58
511
132
89
Plastic limit,
PL (%)
26
21
26
24
192
49
31
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