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▷ ▶ Visual Classification of Soil free Education flowcharts and decision trees.
Visual Classification of Soil
A Flowchart by soilmechanics12. See soilmechanics12's 4me blog page.
Viewed 1318 times. Created August 2013.

Information and items from you may find helpful. This Education flowchart, a free online decision tool is a creation of soilmechanics12 and Education for amusement purposes only. The implicit and explicit opinions expressed here are the author's. does not necessarily agree.
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Show soil classification

Put a sample of soil into your hand. Can half of the soil particles can be seen with the naked eye?
The soil is coarse grained
Do 50% or less of the coarse grains pass through sieve number 4?




Wet the soil and work it in your hand. Is your hand stained?
The soil's main component is clay
The soil's main component is sand
The soil's main component is gravel


The soil's main component is silt
Determine whether the soil is wet, moist or dry
Observe the particle shape (angular, sub-angular, sub-rounded or rounded)
Observe the colour of the soil

If the soil contains >12% of a secondary component, the soil has a dual/multiple name
If the soil contains 5-12% of a secondary component, it has 'some' of it
If the soil contains <5% of a secondary component, it has 'a trace of' it