PROBLEM No. 2 The properties of six different clayey soils are shown below based from a series of Atterberg Limit tests and Hydrometer tests. Complete the table by determining the plasticity index, PI, and activity, A of each soil. Also, classify each soil based on the activity, A (inactive, normal, active). Lastly, determine the probable clay mineral composition (Kaolinite, Illite, Montmorillonite) of each soil based on the activity, A. Probable Clay % clay fraction Activity Activity Classification Mineral Composition LL PL Soil PI % A 1 100 25 50 88 64 72 77 23 92 4 120 35 60 75 10 85 90 27 58 3.

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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PROBLEM No. 2
The properties of six different clayey soils are shown below based from a series of
Atterberg Limit tests and Hydrometer tests.
Complete the table by determining the plasticity index, PI, and activity, A of each soil.
Also, classify each soil based on the activity, A (inactive, normal, active). Lastly,
determine the probable clay mineral composition (Kaolinite, Illite, Montmorillonite) of
each soil based on the activity, A.
% clay
Activity
Classification
Probable Clay
Mineral Composition
LL
PL
Activity
Soil
PI
%
%
fraction
A
1
100
25
50
2
88
64
72
3
77
23
92
4
120
35
60
75
10
85
6.
90
27
58
Transcribed Image Text:PROBLEM No. 2 The properties of six different clayey soils are shown below based from a series of Atterberg Limit tests and Hydrometer tests. Complete the table by determining the plasticity index, PI, and activity, A of each soil. Also, classify each soil based on the activity, A (inactive, normal, active). Lastly, determine the probable clay mineral composition (Kaolinite, Illite, Montmorillonite) of each soil based on the activity, A. % clay Activity Classification Probable Clay Mineral Composition LL PL Activity Soil PI % % fraction A 1 100 25 50 2 88 64 72 3 77 23 92 4 120 35 60 75 10 85 6. 90 27 58
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