If you are after some definitive advice on the thickness of residential concrete driveways or what driveway slab reinforcement to use and how far apart crack control joints should be then you have come to the right place.

Check out this Residential Concrete Driveways and Paths manual produced by Cement Concrete and Aggregates Australia.

At Cornell Engineers, we have been referring to this document since its release in 2006 and it’s still the best way to ensure satisfactory performance of your driveway slab.

The residential concrete driveway manual also has concrete driveway construction details including isolation joints and expansion joints.

Remember that in the absence of better information, this is the manual that will be referred to in the event of a dispute about uncontrolled cracks and movement in your driveway.

Don’t forget local authorities (councils) have their own requirements for driveways, cross-overs and paths. For example, here is the link to the Driveway Technical Standards for Brisbane City Council:

We would love to design your driveway concrete for you. Please contact Cornell Engineers on 07 3102 2835.

If you have a cracked driveway slab, maybe we can help you. Call Matt Cornell for advice or to arrange an inspection.

Concrete Thickness for Commercial Driveways

Ask Cornell Engineers to design your commercial driveway. We’ll specify the concrete thickness, the strength of the concrete for your driveway.

Commercial concrete driveways are designed specifically for the weight of the vehicles using the driveway, the number of times a day a vehicle uses the driveway and the ground conditions under the driveway.

Contact Cornell Engineers for more information.

Concrete Driveway Repairs

Oh no. Your concrete driveway has cracks in it. Cracks in a concrete driveway aren’t necessarily a bad thing but if your concrete driveway is brand new and you have concerns, Cornell Engineers can check to ensure your concrete driveway was constructed correctly.

There are quite a few tools available to us for investigating cracks in concrete driveways. Some of these tools are:

• Schmidt Hammer testing to determine the strength of the concrete surface. This is useful to determine if the concreter added too much water on site and weakened the concrete mix.
• Slab coring. This is useful to determine if the concreter used a plastic membrane under the slab, the thickness of the slab and whether the steel reinforcement was chaired at the correct height in the concrete.
• Crack plans. These plans record the location and width of surface cracking to allow an assessment of why the slab cracked.
• Ground Penetrating Radar. GPR is useful to determine the location and type of concrete reinforcement that was used and also variations in the slab thickness.

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