Glossary
Nature and classification of soils

Alluvium; alluvium

Deposits of sediment transported by water, especially rivers. They are divided into modern alluvium and ancient alluvium, and their suitability for foundations varies according to their composition and compactness.

Argilosity; clay content

Clayosity refers to the quantity and quality of clay particles present in a soil. It is determined to assess the soil's potential for swelling or shrinkage.

Caractéristiques chimiques; chemical properties

The chemical characteristics of soils refer to their chemical composition, which can affect the durability of building materials and the stability of structures.

Compactness; compaction

Compactness refers to the degree of density of a soil material. It is relevant when a soil is intentionally compacted to improve its mechanical properties.

Degré de saturation; degree of saturation

The...