Nupave recommended external concrete specification — Bonbeach
Group 1 — Bayside / Sand Belt — Brighton Group Sands
Concrete: 32 MPa (all exposed aggregate)
Indicative regional ground conditions
Bonbeach sits on the Bayside / Sand Belt, where the natural profile is dominated by free-draining Brighton Group sands. Regional ground conditions are generally stable and low-reactivity, though loose sand pockets can require additional compaction. The actual AS 2870 site classification for any individual property can only be established through a site-specific geotechnical investigation, taking into account soil profile, fill, moisture conditions and vegetation.
Regional ground movement (indicative, AS 2870)
Ground of this type may exhibit generally low seasonal surface movement (indicatively under 20 mm). This is a regional indicator only — actual movement at a given address depends on soil profile, moisture history and tree influence.
| Application | Slab thickness | Sub-base | Reinforcement |
|---|---|---|---|
| Path / foot traffic | 75–100 mm | 50–75 mm compacted crushed rock | SL72 |
| Driveway (cars up to 3 t) | 100 mm | 75–100 mm compacted crushed rock | SL72–SL82 |
| Occasional truck (3–10 t) | 125–150 mm | 100 mm compacted crushed rock | SL82 or rebar |
Nupave standard specification for typical conditions of this soil group — subject to site-specific assessment. Not a design substitute for a project engineer’s report where one is required.
| Saw-cut / control joint spacing (100 mm slab) | |
|---|---|
| Spacing between cuts | 2.7 m – 3.0 m (standard spacing) |
| Cut depth & timing | At least 25 mm on a 100 mm slab (¼ slab thickness). Saw-cut as soon as the concrete can be cut without excessive ravelling — timing will vary with the mix, weather and saw type. A quick trial cut on a low-visibility edge or offcut is best practice before committing to the full grid. |
| What joints do | Closer joint spacing and properly proportioned panels encourage drying-shrinkage and thermal movement to occur at planned locations. Control joints reduce the risk of random cracking; they do not prevent cracking caused by inadequate support or differential ground movement. |
| Panel shape | Keep panels close to square (length ≤ 1.5× width). Long, narrow panels are more prone to random cracking regardless of joint spacing. |
Concrete grade
All Nupave exposed aggregate is poured at N32 as standard, regardless of soil group. The aggregate-exposure process removes the top cement paste layer, so the slab benefits from the higher compressive strength, improved durability and better abrasion resistance of N32. For non-exposed external concrete work, Nupave specifies N25 or N32 depending on application, anticipated loading, exposure conditions, selected finish and any site-specific engineering requirements. Concrete strength alone does not compensate for inadequate subgrade preparation, drainage or ground movement — it is one element within a properly detailed slab system.
Slip layer (poly membrane)
A polyethylene separation or slip membrane may be considered where required by the slab design or site conditions. It can reduce friction between the slab and compacted base during concrete shrinkage, but does not prevent settlement, heave or other vertical ground movement. Where a project engineer or geotechnical report specifies membrane use, that specification takes precedence.
Sub-base — why it’s a key part of the quote
Correct excavation, drainage, and a uniformly compacted crushed-rock base significantly reduce settlement and provide consistent support under the slab. It adds cost — both in laying and compacting the base, and in the extra excavation and spoil-removal that comes with the deeper dig — but that preparation is what a slab needs to perform over the long term. The preparation actually required may vary where uncontrolled fill, soft areas or unsuitable material are encountered on the specific site.
Curing coat
Concrete requires curing to develop its full design strength and durability. A liquid curing coat is applied after finishing, once bleed water has disappeared and in accordance with the manufacturer's requirements. It seals moisture into the concrete so hydration continues over the first 7 days — when the concrete's real strength develops. In summer, hot dry weather removes surface moisture quickly, so curing coat is essential to prevent surface crazing and reduced final strength. In winter, lower temperatures slow hydration, so curing is still required to reach design strength — the curing coat is still applied, and duration may need to be extended. Nupave applies curing coat as standard on all pours year-round.
Microfibres in concrete mix Optional add-on
What fibres actually do. Microfibres (polypropylene) get mixed through the whole pour and mainly control plastic shrinkage cracking in the first 24 hours, plus improve abrasion / impact resistance — they don’t add real structural tensile capacity. Macrofibres (heavier synthetic or steel) go further, adding post-crack toughness and some flexural strength.
Genuine benefit as an add-on: reduces fine / hairline shrinkage cracking and improves durability on any slab, sand or clay.
Should NOT replace mesh on soft or highly plastic clay soils: fibres provide no real resistance to the larger, ground-movement-driven cracks that mesh or rebar controls.
Salt / coastal exposure
Suburbs within roughly 1 km of Port Phillip Bay are subject to salt spray. Nupave uses B1 exposure classification (N32 minimum) and increases concrete cover to reinforcement on foreshore-proximate work to protect against saline-induced corrosion.
Important: This is Nupave’s enhanced standard specification for typical conditions in this suburb group, and is presented as a general reference. It is not a site-specific engineering design. Actual specifications for any individual property may vary based on site conditions, uncontrolled fill, tree influence, drainage, or requirements identified in a site-specific geotechnical or engineer’s report. Where an engineered design has been prepared for the site, that design takes precedence.
Exposed Aggregate Concrete for Driveways and Entryways Bonbeach
Professional Exposed Aggregate Installation and Restoration
As one of Melbourne’s Kingston suburbs, Bonbeach is a low-key beach suburb with a relaxed village feel, positioned approximately 28 km southeast of Melbourne CBD. Whether you’re upgrading an existing driveway or finishing a new build in Bonbeach, exposed aggregate delivers a durable and visually appealing result. The Kingston area is well-regarded across Melbourne, and Bonbeach is no exception. Nearby you’ll find Bonbeach foreshore, Bonbeach Railway Station, and Patterson River.
Exposed aggregate concrete delivers a durable, slip-resistant finish that reveals natural stone textures beneath the cement surface—combining structural performance with decorative appeal for Melbourne properties.
Nupave specialises in exposed aggregate installation and restoration across Melbourne, the Mornington Peninsula, Bass Coast, Phillip Island, and surrounding regions. Our team handles everything from new driveways and pool surrounds to commercial flooring projects, using locally sourced aggregates and installation methods that meet Australian Standards.
Why Exposed Aggregate Concrete is Perfect for Melbourne Properties
Low Maintenance Requirements When Properly Sealed
Exposed aggregate concrete is low maintenance when properly sealed, with resealing typically required every few years to protect against stains, moisture, and wear. General upkeep is simple, usually involving occasional cleaning with water or mild detergent to maintain its appearance. Compared to materials like pavers or timber, it requires significantly less ongoing maintenance while still delivering long-term durability.
At Nupave, our commitment to our clients extends well beyond the completion of your project. We understand that ongoing maintenance is essential, but also easily overlooked in busy day-to-day life. That’s why every project is added to our exclusive care register, allowing us to provide timely reminders when your concrete is due for resealing. This service is provided at no cost as part of our standard — not as an add-on — ensuring your investment remains protected and continues to perform at its best. It’s a simple, proactive approach designed to give you long-term results without the need to manage it yourself.
Durability Compared to Plain Concrete and Other Decorative Options
Exposed aggregate concrete offers durability equal to or greater than plain concrete, with the added benefit of longer-lasting visual appeal. By using natural stone as the wearing surface, it resists abrasion, staining, and weathering far better than standard finishes, making it ideal for driveways and high-traffic areas. Compared to options like pavers or stamped concrete, it provides a more stable, low-maintenance surface that performs reliably over time.
Visual Appeal and Customisation Options
Exposed aggregate delivers aesthetic appeal through the natural beauty of stone rather than applied colours or stamped patterns. The range of available aggregates—from deep blue-grey basalt to warm-toned granite, from smooth cream river pebbles to sparkling crushed quartz—allows property owners to select finishes that complement their home’s architecture, landscaping, and personal preferences.
Customisation extends beyond simple colour selection. Aggregate size affects the visual texture and feel of the finished product, with options typically ranging from 7mm to 20mm nominal sizes. Smaller aggregates (7mm) create finer textures suitable for areas where barefoot comfort is prioritised, while larger aggregates (14-20mm) produce more pronounced textures appropriate for driveways and high-traffic commercial applications.
Blended aggregates allow for further design control, combining different stone types to create specific colour combinations or visual effects. Some installations incorporate accent aggregates—crushed shells for coastal properties, distinctive quartzite for contemporary designs—to achieve particular design outcomes. This level of customisation means exposed aggregate can suit both modern architectural styles and traditional Melbourne homes, adapting to diverse aesthetic requirements.
Long-Lasting Performance for High-Traffic Areas
The combination of structural concrete strength and durable natural stone aggregate creates surfaces capable of handling significant traffic loads over extended periods. For driveways, this means withstanding daily vehicle movements, visitor parking, and the concentrated loads that occur during turning and braking. For commercial applications, exposed aggregate handles pedestrian traffic volumes that would wear through less durable decorative treatments.
The key to this long-lasting performance lies in proper specification and installation. Strength grades appropriate to the intended use—N32 for standard residential applications, N40 for heavy-duty or commercial installations—provide the structural foundation. Adequate slab thickness, proper reinforcement with steel mesh or bars, and appropriate subbase preparation ensure the concrete can handle applied loads without cracking or settlement.
Control joints placed at correct spacing accommodate the natural shrinkage that occurs as concrete cures, preventing random cracking that would compromise both appearance and structural integrity. When these elements are correctly specified and installed, exposed aggregate delivers decades of reliable service with minimal degradation.
Is New Concrete Always Necessary?
Before committing to new exposed aggregate concrete, it’s worth having your existing surface professionally assessed. In many cases, concrete that appears worn, outdated, or damaged can be restored or resurfaced at a significantly lower cost than full replacement. A proper evaluation can help determine whether excavation is actually necessary, potentially saving thousands while still achieving a high-quality finish. Getting expert advice first ensures you’re making the right decision based on the condition of your current concrete, not just assumptions.
Our goal is to find the right solution for your concrete, whether that’s resurfacing, repairs, or replacement.
Our Exposed Aggregate Services
Residential Exposed Aggregate
We create custom exposed aggregate installations for residential properties throughout Melbourne and surrounding areas. New driveways benefit from aggregate selection tailored to complement house colours and landscaping, with slab thickness and reinforcement designed for household vehicle loads and local soil conditions.
Pathways, patios, and outdoor entertaining areas receive the same attention to design and construction detail. Pool surrounds utilise aggregate types selected for barefoot comfort and slip resistance, with drainage slopes directing water away from the pool edge and house foundations.
Exposed aggregate resurfacing provides an option for existing concrete surfaces in sound structural condition. This overlay approach can transform plain or deteriorating concrete into attractive exposed aggregate finishes without the full excavation and base preparation required for new installations. Our consultation process assesses whether resurfacing is appropriate for each specific situation based on existing concrete condition and intended use.
Commercial Exposed Aggregate Flooring
Commercial projects demand attention to compliance requirements, traffic loads, and design integration with broader site development. Office building entrances and corporate walkways benefit from exposed aggregate’s professional appearance and minimal maintenance requirements, reducing ongoing management costs while enhancing property presentation.
Retail and hospitality applications utilise exposed aggregate for outdoor dining areas, shopping centre walkways, and entrance features. The durability handles high pedestrian volumes while the range of available finishes allows design coordination with overall site aesthetics.
Public space installations require compliance with relevant Australian Standards including AS 1379 for concrete specification and supply. Council projects often specify particular aggregate types and exposure depths to match existing streetscape materials—City of Melbourne specifications, for example, require N40 strength grade with 14mm crushed basalt for exposed aggregate kerbs, matching the bluestone character of established streetscapes.
Our Professional Installation Process
Every exposed aggregate project begins with a detailed site assessment, where we evaluate soil conditions, drainage, access, and overall layout. This allows us to recommend the right preparation method and help you select an aggregate that suits your home, surroundings, and intended use.
Preparation is key to long-term performance. The area is excavated, a compacted crushed rock base is installed, and reinforcement is placed to provide strength and stability. Formwork and drainage are carefully set to ensure the finished surface performs as well as it looks.
Concrete is then poured, levelled, and finished to the required specification, with timing carefully controlled to achieve consistent aggregate exposure. A surface retarder is applied and later washed off to reveal the natural stone, creating the textured finish exposed aggregate is known for.
Once cured, the surface is sealed to protect against staining, moisture, and wear while enhancing the natural colour of the stone. With proper installation and ongoing maintenance, exposed aggregate delivers a durable, long-lasting result suited to Melbourne conditions.
Popular Exposed Aggregate Finishes Available
Melbourne’s geology and established supplier network provide access to diverse aggregate types suitable for exposed concrete applications. The following options represent commonly available materials, each with distinct appearance characteristics and appropriate use cases:
- Basalt (Bluestone) – Deep blue-grey to black tones with angular facets. Extremely hard with high abrasion resistance. Best suited for driveways, commercial areas, and high-traffic zones. Matches heritage Melbourne streetscapes.
- Granite Chips – Available in varied colours including pink, grey, red, and cream. Coarse faceted appearance with good durability. Suitable for properties seeking warm colour tones or distinctive visual contrast.
- Crushed Quartzite – White or translucent crystalline appearance with high brightness. Creates a contemporary aesthetic with striking visual impact. Higher cost than standard aggregates; best used for feature areas or accent applications.
- Charcoal Blend – Mixed dark-toned aggregates including basalt and dark granite. Creates sophisticated, low-contrast appearances that mask staining and weathering effectively. Suited for driveways and high-traffic residential areas.
- Warm Earth Tones – Blends incorporating brown, rust, and ochre-coloured stones. Creates a rustic appearance complementing natural landscaping and timber elements. Appropriate for properties seeking organic aesthetic integration.
- Beach/Coastal Blend – Combinations of cream pebbles, crushed shell, and sand-toned aggregates. Creates finishes suited to coastal properties and beachside themes. Available in various textures from fine to medium exposure.
- Mixed Heritage Blend – Aggregates selected to coordinate with established Victorian architectural styles. Typically incorporates basalt and cream tones matching period home characteristics.
Aggregate sizes typically available include 7mm (fine texture), 10-14mm (standard exposure), and up to 20mm for pronounced texture applications. Colour shades vary between batches due to the natural stone origin, so sample approval and consistent batch sourcing are essential for consistent project appearance.
Get Your Free Exposed Aggregate Quote Today
Nupave provides professional exposed aggregate installations across Melbourne and surrounding regions, including metropolitan Melbourne, the Mornington Peninsula, Bass Coast, and West and South Gippsland.
Every project begins with a free onsite consultation, where we assess your site conditions, discuss design options, and help you select the right aggregate to suit your property. You’ll receive clear, detailed pricing along with expert advice to ensure you’re making the right decision from the start.
Our commitment is to deliver high-quality workmanship using premium local materials, installed to Australian Standards for long-term performance.
Contact us today to arrange your consultation.
Exposed aggregate concrete is a popular pick for Bonbeach homes close to the foreshore. Rather than replacing a solid slab, spray-on concrete resurfacing in Bonbeach can deliver a similar decorative effect at a fraction of the cost. In neighbouring areas including Chelsea, exposed finishes remain a popular choice for driveways and entertaining areas alike. We handle exposed aggregate concrete across Melbourne installs throughout the City of Kingston.