Exposed Aggregate Concrete: Unlocking Texture, Traction, and Timeless Appeal
By Total Care Concrete Fri Sep 26 20257 minutes
What Is Exposed Aggregate Concrete?
Exposed aggregate concrete is a specialized surface finish created by removing the top layer of cement paste to reveal the embedded decorative stones, pebbles, or aggregates beneath. This technique produces a visually striking and highly textured finish, making it a popular choice for outdoor surfaces like driveways, walkways, patios, and pool surrounds.Key Benefits of Exposed Aggregate Concrete
- Superior slip resistance, ideal for high-traffic and wet areas such as pool decks and entryways.
- Exceptional durability and resistance to weathering, abrasion, and heavy loads.
- Endless design possibilities by varying aggregate color, size, and type.
- Low maintenance requirements compared to other decorative surfaces.
- Enhanced curb appeal with a timeless, natural look.
“A well-designed exposed aggregate surface combines safety, beauty, and resilience—hallmarks of outstanding concrete craftsmanship.”
The Installation Process: Step-by-Step Overview
Installing exposed aggregate concrete requires precision and attention to detail at every stage. Proper execution ensures both the aesthetic quality and structural integrity of the finished surface.- Site preparation and formwork setup to define the area.
- Mixing and pouring concrete with chosen decorative aggregates.
- Surface leveling and initial finishing for uniformity.
- Application of a surface retarder to delay setting of the top cement paste.
- Careful washing and brushing to reveal the aggregate without dislodging it.
- Curing and sealing to protect and enhance the surface.
Popular Aggregate Choices and Their Effects
Selecting the right aggregate is crucial for achieving the desired look and performance. Aggregates come in a variety of colors, sizes, and materials, each imparting unique visual and tactile qualities to the finished concrete.| Aggregate Type | Visual Effect | Typical Use |
| River Pebbles | Smooth, rounded, multicolored | Patios, walkways |
| Crushed Granite | Angular, sparkly, grey tones | Driveways, modern landscapes |
| Recycled Glass | Colorful, reflective, eco-friendly | Artistic features, borders |
| Basalt Chips | Dark, uniform, contemporary | Urban spaces, accents |
Maintenance Tips for Lasting Beauty and Performance
While exposed aggregate concrete is inherently low-maintenance, routine care maximizes its lifespan and appearance. Simple upkeep can prevent staining, surface wear, and loss of aggregate.- Sweep regularly to remove debris and prevent surface abrasion.
- Wash with mild detergent and water to eliminate grime and organic buildup.
- Reapply a high-quality concrete sealer every 2–3 years for protection and color enhancement.
- Promptly remove oil, grease, or rust stains to prevent permanent discoloration.
- Inspect for cracks or aggregate loss and address issues early.