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Concrete Glossary

Capillary Break

A capillary break is a layer of coarse, clean material — typically washed gravel with few fines — placed beneath a slab or foundation to interrupt the capillary wicking of groundwater upward through smaller soil pores, complementing a vapor barrier in controlling moisture beneath a structure.

Compiled by the Reborn Rental team, backed by our field engineers and dispatch staff working Denver-metro concrete washout and equipment rental jobs.

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