Short answer
You can pour concrete in cold weather with a planned heating, protection and curing procedure. ACI calls for cold-weather precautions when air temperatures fall, or are expected to fall, below 40°F during the protection period. A mild Georgia afternoon alone is not enough: we plan how the concrete is protected overnight and check its strength before you load it.
| ACI cold-weather trigger | Air below 40°F during the protection period[1] |
|---|---|
| Early freezing protection | Until at least 500 psi; not permission to load the slab[3] |
| Blanket removal and loading | Based on the mix, site conditions and measured strength[2] |
Does this apply in Georgia?
More than people expect. Atlanta's airport station averages about 52 nights a year at 32°F or below, nearly all from December to February, and north Georgia sees more. South of Macon the count drops sharply. A December pour in metro Atlanta can easily meet ACI's 40°F threshold overnight even after a 60°F afternoon. Your city pageshows the local numbers.
What to agree before the truck arrives
Cold-weather work is part of our written estimate. These are the questions it answers:
- Who prepares and checks the ground and contact surfaces before placement?
- What protection will be ready on site, and who checks it overnight?
- How will the crew monitor temperature and decide when protection can be removed?
- How will strength be assessed before vehicles, forms or other loads are allowed?
- What forecast or site condition would postpone the pour, and what costs change?
Protect the ground, the fresh concrete and the curing period
NRMCA recommends removing ice and frost and bringing surfaces that touch the concrete above freezing before placement. Depending on conditions, protection may include insulated blankets, forms or heated enclosures. Do not assume an accelerating admixture makes the concrete freeze-proof. Protection must also avoid drying and sudden temperature changes.
Why 500 psi does not mean the driveway is ready
ACI's 500 psi threshold concerns resistance to a single early freezing event. It is not a vehicle-loading threshold or assurance against repeated wet freeze-thaw exposure. We use the specified mix and appropriate strength evidence for decisions about traffic and removing support. Read thegeneral curing timeline for context, and thehot-weather guide for the other nine months of the year.
Frequently asked questions
Can concrete be poured at 35°F?
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Possibly, with a cold-weather plan. The air temperature alone does not establish whether the pour is suitable; we look at the ground, concrete temperature, overnight protection and strength checks and tell you whether to pour or wait.
Does an accelerator stop concrete from freezing?
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No. Accelerators can change setting and early strength development, but they do not replace insulation, heating or curing protection.
When can I drive on a cold-weather pour?
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We give you a project-specific release date. Cold conditions can slow strength gain, so a normal-weather rule such as seven days is not a guarantee.
Sources
- [1]American Concrete Institute, ACI 306R-16: Guide to Cold Weather Concreting (preview) (2016 edition; checked October 6, 2026)
- [2]National Ready Mixed Concrete Association, CIP 27: Cold Weather Concreting (2014 edition; checked October 6, 2026)
- [3]American Concrete Institute, What is the effect of freezing on concrete? (checked October 6, 2026)
Prices are national ranges published by the sources above, not quotes. Your price depends on size, access, site preparation and local labor rates in Georgia. Our free on-site estimate is the price for your site.
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