Driveways

The details

Specification guide.

Proposed Wunderbar driveway baseline — project design confirmation required

Base layer

Proposed Wunderbar baseline: compacted DGB20 road base. Base thickness and compaction acceptance criteria to be confirmed for the site.

Concrete strength

Proposed Wunderbar baseline: 32 MPa specified compressive strength at 28 days, subject to approved pavement design.

Concrete thickness

Proposed Wunderbar baseline: 100 mm slab for the nominated residential application, subject to loading, ground conditions and approved design.

Footings / edge thickening

Proposed detail: 300 mm × 300 mm continuous trench footings where specified. Locations, reinforcement, dimensions and necessity require engineering confirmation; not assumed around every driveway.

Reinforcement

Mesh or bars, laps, cover, supports and any dowels to follow the approved pavement design. No mesh grade is assumed.

Contraction / control joints

Saw-cut or formed joints to control shrinkage cracking. Layout, spacing, depth and cutting timing to be confirmed in the pavement design and placement plan.

Isolation / expansion joints

Provide at the locations detailed in the approved design. Filler, backer rod and sealant geometry to suit the joint system.

Joint sealant

Proposed polyurethane sealant where a sealed joint is specified, provided the chosen product is suitable for traffic, weather, movement and contact materials. Product and joint detail to be confirmed.

Falls & drainage

Finished levels, grades, drainage and overflow paths to follow the approved design; avoid unintended discharge towards the dwelling.

Placement & curing

Prepare, place, compact, finish and cure using the selected mix and approved method. Vehicle access timing to be confirmed by the installer.

Surface finish

Plain, coloured, exposed aggregate or decorative spray-on finish as selected. Approve a representative sample and assess surface suitability.

Spray-on configuration

Decorative spray-on coating is a surface system, not the structural slab. Existing concrete needs a condition and adhesion assessment; new-slab scope to be confirmed separately.

Crossover & special loading

Council crossover details, service covers and heavy-vehicle areas may require different thickness, reinforcement, mix or approvals.

Design reference

Residential pavement design may be assessed against AS 3727.1 where applicable. Confirm the project-required edition and council details; the catalogue is not an engineered pavement design.

Reviewed 24 October 2026. Wunderbar-supplied proposed baseline plus general pavement guidance; not an issued engineering detail.