Soil nail walls are not ideal in locations with highly plastic clay soils.
2.
It comes from the alteration of Cretaceous rocks and takes the form of a brown or greenish plastic clay without fossils.
3.
Glaze cones were made by evaporating water from a liquid glaze until the resulting mass reached the consistency of a plastic clay.
4.
:: 2 ) Alluvium deposits occupying the valley floor range from highly plastic clays to sands and grovel with some silt.
5.
The techniques of jiggering and jollying can be seen as extensions of the potter's wheel : in jiggering, a shaped tool is slowly brought down onto the plastic clay body that has been placed on top of the rotating plaster mould.
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