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Concrete & Masonry

Exposed Aggregate

In Plain English

A decorative concrete finish where the top layer is washed away to reveal the colorful stones inside the mix.

Definition

A decorative concrete finish achieved by removing the surface mortar to reveal the aggregate (stones, pebbles, or other materials) embedded in the concrete. The process involves applying a surface retarder, then pressure-washing the surface after the concrete has begun to set. Exposed aggregate provides a textured, slip-resistant surface with visual appeal.

Example

The pool deck was specified with exposed aggregate finish using river pebbles for a natural look and slip resistance.

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