Table 8-1.5
Relative Desirability of Soils as Compacted Fill
Relative Desirability for Various Uses
Group
Soil Type
Rolled Earth Fill
Canal
Foundations
Roadways
Symbol
Dams
Sections
Fills
ML
Inorganic silts and very
6
6
-
-
6
6
9
10
11
_
fine sands. Rock flower,
Erosion
silty or clayey fine sands
critical
with slight plasticity.
CL
Inorganic clays of low to
5
3
-
9
3
5
10
9
7
7
medium plasticity,
gravelly clays, sandy
clays, silty clays, lean
clays.
OL
Organic silts and organic
8
8
-
-
7
7
11
11
12
-
silts-clays of low plasticity
Erosion
critical
MH
Inorganic silts, micaceous
9
9
-
-
-
8
12
12
13
-
or diatomaceous fine
sandy or silty soils, elastic
silts.
CH
Inorganic clays of high
7
7
-
10
8
9
13
13
8
-
plasticity, fat clays
volume
change
critical
OH
Organic clays of medium
10
10
-
-
-
10
14
14
14
-
high plasticity
(-) indicates not appropriate for this type of use.
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