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Compression Constant 10

In engineering practice the natural logarithm with base is sometimes replaced by logarithm with base 10 when plotting the stress σef. In this case it is common to denote the compression constant with subscript 10: C10. Since it holds:

it is possible to derive a relationship between compression constant C and C10:

Arnold Verruijt (Soil Mechanics) offers the following values of compression constant:

Soil

C

C10

Sand

50 - 500

20 - 200

Silt

25 - 125

10 - 50

Clay

10 - 100

4 - 40

Peat

2 - 25

1 - 10

Literature:

Arnold Verruijt: Soil mechanics, Delft University of Technology, 2001, 2006, http://geo.verruijt.net/.

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