Definition, Meaning & Synonyms
subgrade
noun
/ˈsʌbɡreɪd/
Definition
Subgrade refers to the layer of soil or material that serves as the foundation for a building or road.
Examples
- The construction crew ensured the subgrade was compacted before laying the pavement.
- Geotechnical studies often assess the quality of the subgrade material.
Meaning
In civil engineering, the subgrade is the natural or prepared component beneath a structure that supports the load of the materials above it.
Synonyms
- base layer
- foundation layer
- underlayer
