Exposed Aggregate Finish

Definition

An Exposed Aggregate Finish is a concrete surface in which the coarse aggregate is revealed by removing the outer skin of mortar, generally before the concrete has fully hardened.

Purpose

The purpose of an Exposed Aggregate Finish is to create a decorative and textured surface that is both aesthetically pleasing and slip-resistant. It is often used for walkways, driveways, and decorative facades.

Examples of Use

• Driveways: Providing a durable and attractive surface for residential driveways.
• Walkways: Creating decorative and slip-resistant pedestrian pathways.
• Building Facades: Enhancing the visual appeal of exterior walls with textured finishes.

Related Terms

• Concrete Finish: The final surface treatment of concrete, affecting its texture and appearance.
• Aggregate: Crushed stone, gravel, or other materials mixed with cement to make concrete.
• Surface Retarder: A chemical used to delay the setting of the surface mortar, allowing for the exposure of aggregate.

Notes

• The timing and method of exposing the aggregate are critical to achieving the desired finish and durability.
• Maintenance of exposed aggregate surfaces may include sealing to protect against stains and weathering.