How often does exposed aggregate need resealing?

Every few years is a fair guide, though a driveway that cops full summer sun may want it sooner. The sealer keeps the stone looking rich and the surface easy to hose down, so topping it up is the main upkeep.

Exposed Aggregate Bendigo

Non-slip, hard-wearing exposed aggregate for driveways, paths, courtyards and alfresco areas, from Kangaroo Flat and Strathdale to Eaglehawk and Marong. Tell us about your job and we will get you a quote from a concreter who does this finish locally.

Exposed aggregate is a decorative finish that earns its keep on a Bendigo driveway. It washes back the top skin of the concrete to reveal the stone underneath, which gives grip underfoot when the surface is wet, hides tyre marks and leaf stains, and wears far better than a smooth trowelled slab. It is one of the most popular finishes for driveways and paths across the region.

Grippy underfoot when wet
Driveways, paths & alfresco
Hides marks & wears well
Free, no-obligation quotes

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Why Exposed Aggregate Works in Bendigo

If you walk around the newer builds at Strathfieldsaye, Junortoun or Maiden Gully, you will notice the same finish on driveway after driveway: a speckled, pebbly surface rather than plain grey. That is exposed aggregate, and it has become a go-to decorative finish for good reasons that go beyond looks.

The first is grip. A steel-trowelled slab is glassy smooth, and on a sloped Bendigo driveway or a wet path that is a hazard. Exposing the aggregate leaves the stone standing slightly proud of the surface, which gives bare feet and car tyres something to hold. The second is how it wears. The surface you see is hard river stone and crushed rock, not a thin cement skin, so it copes with daily traffic, dragged bins and general grit without scuffing up the way a smooth topping does. The third is that it hides marks. Leaf stains from the gums around Flora Hill and Quarry Hill, the odd oil drip, general dirt, all of it disappears into the texture instead of showing on a flat grey face.

It is also a practical fit for the way the ground behaves here. Exposed aggregate is a normal reinforced slab underneath, so it is built with the same base prep, steel and joints that reactive Bendigo clay demands. You are choosing the finish on top without giving anything away on the durability that matters most in a slab that has to cope with seasonal ground movement.

How the Finish Is Made

Choosing the stone

Exposed aggregate is a normal reinforced slab with a decorative stone mix through it. The look comes down to the aggregate you pick: the colour of the stone, the size of the pebbles and the shade of the cement around them. A pale mix with quartz and lighter pebbles stays cooler underfoot through a hot Bendigo summer, which is worth thinking about on a path or an alfresco area. Darker granite and river stone mixes read more solid and hide dirt even better. Your concreter can show you sample boards so you are choosing off the real thing rather than a photo.

Because the stone is what you see, the mix has to be spread and worked evenly through the pour so the finished surface is consistent and not blotchy. That is a skill, and it is where an experienced local crew earns their keep.

Plain grey concrete driveway leading to a Bendigo home before an aggregate finish

Washing back the surface

Once the slab is placed and levelled, the crew works the stone just below the surface and then removes the thin top layer of cement paste to reveal it. There are two common ways this is done. A surface retarder can be sprayed on so the top skin stays soft while the concrete underneath sets, then it is washed off the next day to expose the stone cleanly. On smaller jobs the surface can be washed back by hand with water and a brush at the right moment. Timing is everything with either method. Too early and you wash out the stone, too late and the paste has locked in. Getting that window right on a hot, dry Bendigo day, when the slab is drying fast in the heat, is exactly the sort of local judgement that separates a clean finish from a patchy one.

Sealing and upkeep

Exposed aggregate is nearly always sealed once it has cured. The sealer deepens the colour of the stone, makes the surface easier to hose down, and adds a layer of protection against stains and the sun. Through a Bendigo summer the surface cops strong sun, so the sealer gets topped up every few years to keep the finish looking rich rather than dry and dull. Your concreter will tell you which sealer suits your spot and how often to redo it. A slip-resistant additive can go into the sealer on paths and ramps if you want extra grip.

Where It Works Best

Exposed aggregate earns its place in a few spots around Bendigo in particular:

Driveways. The texture gives tyres grip on the sloped blocks common around the older suburbs, and it hides tyre marks and oil far better than a plain slab.
Paths and entries. The wash-back finish is easy on the eye out the front of a period home at Quarry Hill or Ironbark and copes with foot traffic year round.
Alfresco and entertaining areas. It ties the outdoor living space to the driveway when the same aggregate runs through all of it.
Courtyards and around pools. The grip underfoot when wet and the way it hides marks make it a sensible choice for surrounds and courtyards.

If you want a decorative look without the full aggregate, coloured and stencilled finishes are worth a look, and if the job is a driveway first and a finish second, start with our concrete driveways page.

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Exposed Aggregate FAQs

Is exposed aggregate slippery underfoot?

It is one of the less slippery concrete finishes, which is a big part of why it is so popular on driveways and paths. The stone stands slightly proud of the surface and gives grip when the surface is wet. If you want extra security on a ramp or a path you can add a slip-resistant additive to the sealer. It is a much safer choice underfoot than a smooth trowelled slab.

Does exposed aggregate handle the Bendigo climate?

A well-made aggregate slab holds up well. It comes down to the same fundamentals as any Bendigo concrete: correct steel, sensible joints for the reactive clay, and a good sealer kept topped up against the summer sun. The textured surface also hides the small marks and hairlines that would show on a plain grey slab, so it tends to look better for longer.

How often does it need resealing?

Every few years is a fair guide, though a driveway that cops full summer sun may want it sooner. The sealer is what keeps the stone looking rich and makes the surface easy to hose down, so topping it up is the main upkeep. Your concreter will suggest a schedule based on where your slab is and how exposed it is.

Can I get exposed aggregate on an existing driveway?

Exposed aggregate is created in the pour itself, so it cannot simply be applied to an existing slab. If your current concrete is sound but tired, a decorative resurfacing overlay can give you a fresh look without a new pour. If you want the genuine aggregate finish, that means a new slab.

Do I still need council approval for an aggregate driveway?

The finish does not change the rules. The slab on your own land generally does not need approval, but the vehicular crossing where the driveway meets the road does need City of Greater Bendigo approval to its own specification. Sort that out early with your concreter.

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