When considering outdoor paving options, one question often arises: How much does exposed aggregate concrete cost in 2024? Exposed aggregate concrete is a decorative and durable surface that has become increasingly popular for patios, driveways, and outdoor areas. Its aesthetic appeal, combined with its long-lasting strength, makes it a sought-after option, but the cost can vary significantly based on factors like material choice, design complexity, and labour.
This guide will walk you through everything you need to know about exposed aggregate concrete in Australia, from what it is and how it’s installed to the costs you can expect in 2024. Whether you’re after a basic design or something more intricate, we’ll provide the information you need to make an informed decision.
What Is Exposed Aggregate Concrete?
Exposed aggregate concrete is a type of decorative pavement that enhances outdoor spaces with both strength and style. It’s created by mixing a concrete base and then adding a layer of concrete mixed with sand or cement. Ornamental materials such as pebbles, shells, granite, gravel, or even glass are embedded in the surface to give it a unique and eye-catching finish.
Overview of Exposed Aggregate Concrete
This type of concrete combines durability with design versatility. One of the biggest advantages is that homeowners can customise the look by choosing different aggregates, resulting in a surface that complements any outdoor aesthetic—whether modern, rustic, or traditional. Its durability makes it especially suitable for high-traffic areas like driveways and patios, while its appearance adds a decorative touch.
How Exposed Aggregate Concrete Is Installed
Several steps are involved in installing exposed aggregate concrete, each of which contributes to the overall cost. Here’s a breakdown of the process:
Plan the Project
The first step in any exposed aggregate concrete project is planning. This involves measuring the area, choosing the type of aggregate, and deciding on a layout or design. Keep in mind that the type of aggregate you choose will significantly affect the overall cost. For example, using basic gravel will be less expensive than incorporating colourful glass or marble chips.
Prepare the Base
Next, a stable base must be prepared. The ground needs to be levelled and compacted, and sometimes a layer of gravel is added to improve stability. This ensures that the concrete remains durable and long-lasting.
Create the Formwork
Formwork is necessary to contain the concrete and shape it while it dries. Temporary boundaries or forms are built, and reinforcing bars (rebar) are added for extra strength.
Pour the Concrete
Once the base and formwork are ready, the concrete is mixed and poured into the forms. The surface is levelled using a bull float or similar tool to ensure a smooth finish.
Seed the Aggregate
Before the concrete fully sets, a process called “seeding” is used to scatter the chosen aggregate evenly across the surface. This allows the decorative elements to be embedded into the concrete.
Expose the Aggregate
After the concrete has partially set, the top layer is washed away to expose the aggregate underneath. This is what gives exposed aggregate concrete its distinctive, textured appearance.
Cure and Seal the Concrete
The concrete must be left to cure for several days to ensure it hardens properly. Once cured, a sealant is applied to protect the surface and enhance the colour and texture of the exposed aggregate.
Is Exposed Aggregate Concrete Expensive?
Material Costs
The cost of exposed aggregate concrete largely depends on the type of materials used. High-quality concrete is the base, but the aggregate you choose—whether it’s gravel, glass, shells, or marble—can increase or decrease the price. For example, quartz and marble are more expensive than sand or basic gravel.
Labour Costs
Labour is another significant factor in the cost. Installing exposed aggregate concrete is a specialised process that requires skilled workers with experience and the right equipment. Hiring professionals ensures a high-quality, long-lasting finish, but it also adds to the overall cost.
Additional Costs to Consider
Several other factors can affect the price, including:
- Sealing the Surface: Applying a protective sealant is essential but will add to the overall cost.
- Maintenance: Regular cleaning and occasional resealing are required to maintain the surface.
- Repairs: Future repairs may be necessary if cracks or damage occur over time.
- Complexity of Installation: If the installation area is uneven or requires intricate patterns, the project will take more time and incur higher labour costs.
How Much Is Exposed Aggregate Concrete on Average in Australia (2024)?
In Australia, the average cost of exposed aggregate concrete in 2024 ranges from $100 to $150 per square metre. This price includes both the materials and labour, although complex designs or the use of premium aggregates can push the cost higher.
Comparison with Standard Concrete
Standard concrete is cheaper than exposed aggregate concrete because it involves a more straightforward installation process. On average, standard concrete costs $85 to $135 per square metre, while exposed aggregate typically costs $100 to $150 per square metre due to the extra materials and labour involved.
Is Exposed Aggregate Concrete Worth the Investment?
Benefits of Choosing Exposed Aggregate Concrete
There are several reasons why exposed aggregate concrete is a smart investment for homeowners:
- Aesthetic Appeal: The ability to customise the look by adding different aggregates allows you to create a unique design that enhances your outdoor space.
- Durability: Exposed aggregate concrete is highly resistant to weathering, UV rays, and daily wear and tear, making it a long-lasting option.
- Safety: The textured surface provides extra traction, reducing the risk of slips. It also stays cooler underfoot compared to other materials, making it ideal for summer use.
- Increased Property Value: The combination of beauty and durability adds curb appeal and value to your home.
Cost vs. Value: Is Exposed Aggregate Concrete Expensive or Cost-Effective?
While exposed aggregate concrete may have a higher upfront cost than standard concrete, its durability, beauty, and long-term value make it a cost-effective option in the long run. The surface can last for decades with minimal maintenance, and its aesthetic appeal increases property value, making it a worthwhile investment.
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Understanding the True Cost of Exposed Aggregate Concrete
Although exposed aggregate concrete is more expensive than standard concrete, the additional cost reflects the skilled labour and materials required to achieve its decorative and durable finish. When properly installed and maintained, exposed aggregate can last for years, providing both functionality and style for your outdoor spaces.
If you’re ready to install exposed aggregate concrete for your next project, contact a reputable professional like Decorative Concrete WA. With over 15 years of experience, their team can help you transform your home into a stunning showpiece.