VBA registered and insured, in Geelong since 2006
You can usually walk on it carefully after about 24 to 48 hours, but keep cars off a new driveway for 7 days while it cures and gains strength, longer in cold weather. Why curing matters, why driving on it early is how a driveway cracks, and how we mark the safe-to-drive date before we leave.
The question every homeowner asks once the slab is down is when can I drive on it. The honest answer is longer than it looks, because feeling hard and being strong are not the same thing. Here is the plain timeline, and why rushing it is how a new driveway cracks.
You can usually walk on a new slab carefully after about 24 to 48 hours. Keep cars off a new driveway for 7 days while it cures and gains strength, and longer in cold weather. It feels hard after a day or two, but concrete keeps hardening for weeks, and the first week is when it is doing most of the work. Drive on it before then and you risk cracking a slab you just paid for.
This is the bit that gets missed. Drying is the water leaving the surface. Curing is the concrete reaching its strength, and it needs the slab kept from drying out too fast to do it. If a fresh slab is left to dry out in the sun and wind, the surface dries before the mix has gained its strength, and that is what cracks and dusts. So curing is a step we manage, not something that just happens while you wait.
A slab driven on too early, or left to dry out instead of cured, is the one that cracks. The timeline is not us being cautious. It is the difference between a slab that lasts and a callback.
Concrete cures slower in the cold, so it gains strength more slowly and needs longer before it takes a car. We allow for the weather rather than rush it, and push the safe-to-drive date out when it is cold. We would rather give you a date you can trust than an optimistic one that cracks the slab.
Ask this, exactly
“How long until I can drive on it, will you mark the safe-to-drive date, and how do you cure the slab so it reaches its strength instead of drying out and cracking?”
A concreter who gives you a realistic cure time and cures the slab properly is one who wants it to last. 'It will be right tomorrow' is the answer that ends in a cracked driveway.
We cure every slab so it reaches the strength it was ordered to, cut the control joints at the right spacing, and mark the date it is safe to walk on and the date it is safe to drive on before we leave. You get a realistic timeline on the quote, not an optimistic one that puts the slab at risk.
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Slabline Concreting Co.