Meaning & use
Subbase
Last updated
A layer of compacted material, such as gravel or crushed stone, placed beneath the base layer of a road, pavement, or foundation to provide additional support.
See it in a sentence
Workers compacted the subbase before laying the asphalt on top.
A poorly drained subbase can lead to cracking in the pavement above it.
A note on using this word
In construction, the subbase distributes loads evenly and helps prevent water damage beneath roads and buildings.
Words with a similar meaning
foundation layer
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