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Exposed aggregate is a decorative concrete finish where the top layer of cement paste is removed to reveal the underlying aggregate (stones, pebbles, or shells). This creates a durable, slip-resistant, and aesthetically pleasing driveway surface.
The calculator uses the simple cost formula:
Where:
Explanation: The total cost is calculated by multiplying the driveway area by the cost per square foot, with typical prices ranging from $8 to $15 depending on various factors.
Details: Several factors influence the final cost including aggregate type, driveway size and shape, site preparation needs, local labor rates, and additional features like borders or coloring.
Tips: Measure your driveway area accurately in square feet. Choose a cost per square foot between $8-15 based on your location and project complexity. The calculator will provide both your specific cost and the typical price range.
Q1: Why does exposed aggregate cost more than plain concrete?
A: The additional cost comes from the specialized process of exposing the aggregate, which requires skilled labor, surface treatment, and sealing for durability.
Q2: How long does exposed aggregate driveway last?
A: With proper installation and maintenance, exposed aggregate driveways can last 25-30 years or more, making it a cost-effective long-term investment.
Q3: Can I install exposed aggregate over existing concrete?
A: Yes, but it requires proper surface preparation and may cost slightly more than new installation. The existing slab must be in good condition.
Q4: Is exposed aggregate slippery when wet?
A: The exposed texture actually provides better traction than smooth concrete, making it less slippery when wet, though proper drainage is still important.
Q5: How do I maintain an exposed aggregate driveway?
A: Regular cleaning, occasional resealing every 2-3 years, and prompt repair of any cracks will maintain its appearance and longevity.