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Exposed-aggregate concrete can almost be compared to a piece of granite or
marble transformed by polishing: A plain, unremarkable surface has been stripped
away to reveal the exceptional beauty lying beneath. In the case of concrete,
that beauty is in the form of decorative aggregate, either natural or
manufactured.
The decorative process of exposing aggregate has been around since the early
1900s, well before pattern stamping, stenciling, and decorative overlays became
trendy. But this method is far from being ready for retirement. An
exposed-aggregate finish offers numerous advantages.
An exposed-aggregate surface is obtained by pouring concrete and then
removing the outer layer of cement cream to uncover decorative coarse stone
(either batched into the concrete mix or put onto the surface). Because of its
durability and skid resistance, an exposed-aggregate finish is ideal for most
flatwork including:
- Sidewalks
- Driveways
- Patios
- Pool decks
With an exposed-aggregate finish, you can achieve spectacular effects at a
reasonable cost because few additional materials (other than the decorative
aggregate) and tools are required. Here are some other notable advantages of
exposed-aggregate finishes:
- The surface is rugged, nonskid, and resistant to heavy traffic and
weather extremes.
- Many types and sizes of decorative aggregate are available to achieve
unlimited color and texture variations.
- Exposed aggregate is highly versatile and contrasts beautifully with
plain concrete or other decorative treatments such as stamping, stenciling,
staining, and integral coloring.
- Little maintenance is required, other than sealing and occasional
cleaning.
Applying a transparent concrete sealer to an exposed-aggregate surface can
improve both its performance and appearance. These sealers—typically
film-forming acrylic resins—can help protect against spalling, freeze-thaw
damage, stains, deicing salts, and abrasion. A sealer will also enhance the
color of the aggregate, accentuating its depth and richness.
When selecting an exposed-aggregate sealer, look for a product that:
- Is non-yellowing and UV resistant
- Will provide a high-gloss “wet look” that deepens and enriches the color
of the aggregate
- Repels oil, grease, water, and stains
- Is recoatable
concrete color: ginger
concrete mix: pea stone
sealant: super diamond clear
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