Full-service
Everything required to build the pavement from start to finish, self-delivered and handed over complete.
- Pre-milling, spreading, mixing
- Compaction, trimming and rolling
- Seal coat or asphalt
- One contract, one site supervisor
Services / Pavement works
Deep-lift heavy patching
When a section of road has failed completely, rutted through, potholing repeatedly, base pumping up through the surface, a shallow patch won't hold.
What it is
The failure is 300mm down, and the fix has to go there too.
Heavy patching rebuilds the failed section to full depth. Deep-lift heavy patching does it in place: the failed pavement is pulverised and stabilised to 300mm or more in a single lift, with a binder blend strong enough to carry the load, then trimmed, compacted and sealed. There's no dig-out, no cart-away and no imported base.
It's the maintenance line item councils and Transport for NSW use to deal with the worst sections of a road without rehabilitating the whole length. Done properly, the patch outlasts the pavement around it.
The process
How the patch is built
A section can usually be closed, patched and reopened within a day or two.
The failure is usually wider underground than on the surface.
Needed where the seal is too thick to mix through.
Typically a strong slag/lime or cement blend at 4–5% for a heavily bound patch.
Padfoot roller first, then smooth-drum, and trim to match the surrounding pavement.
Prime and two-coat seal, or asphalt to match the existing surface.
Best suited for
Where it earns its place.
- 01Local governmentCouncils / ShiresFailed sections rebuilt in place to 300mm and beyond.
- 02Government & state infrastructureTfNSW / State roadsHeavy patching on state highways, to the R75 specification.
- 03Civil & head contractorsInfrastructure / CivilPart-service patching plant and crew, on your dates.
How we work with you
Full-service and part-service
Flexible ways to engage Accurate, depending on your project requirements.
Part-service
Plant and crew for the stabilisation step itself, working to your programme with your own resources alongside.
- Stabiliser, spreader truck and water cart
- Operators who know the plant
- Your compaction, trimming and surfacing
- The specialist step, on your dates
Cost efficiency
Same ground. Lower costs.
In-situ stabilisation reuses the material already in the ground, so there is no new material to import and no spoil to cart away. Less transport, less handling and a single mobilisation of plant make it a faster, more cost-effective way to rebuild a road.
Traditional approach
More transport. Higher costs. Longer program.
Import material
New gravel carted in from the quarry, load by load.
Export waste
The old pavement dug out and trucked away as spoil.
More plant and labour
Extra trucks, excavators and crew on site for longer.
Increased costs
Haulage, tipping and program time all add to the price.
In-situ stabilisation
Less movement. A smarter solution.
Reuse existing material
Stabilise on site, with nothing imported and nothing carted away.
Lower transport costs
Fewer truck movements, less haulage and less disruption to traffic.
Faster delivery
One pass of the recycler, compacted and back under traffic sooner.
Experience
Where Accurate has done it
FAQs
Common questions.
01Why patch deep, and in one lift?
A patch that only treats the top 100–150mm sits on the same failed base that caused the problem. It looks fixed. It fails again, usually within a year, and the second repair costs more than the first because now there's a patch to remove as well. Going to 300mm+ gets below the failure. Doing it in one lift, rather than layering, means the whole depth is bound as one structural layer, with no weak plane between courses. It takes a stabiliser with the power to mix 300mm+ of pavement in a pass. Accurate's deepest work on record is 350mm.
Enquiries, tender requests or specifications
Enquire about your next deep-lift heavy patching project
Call (02) 4942 6100 or send the road and the problem.
Contact Info
- (02) 4942 6100
- quotes@accuratestabilising.com.au
- 66 Kalaroo Rd, Redhead NSW 2290
- Mon–Fri 7:00am – 5:00pm