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Plan cold weather pours before the truck arrives.

Cold temperatures slow curing and can damage concrete if the site, mix, and protection plan are not ready.

Why It Matters

Concrete needs protection while it gains strength.

Concrete gains strength through hydration. Cold temperatures slow that reaction, and freezing water in fresh concrete can cause cracking, weak surfaces, and long-term performance issues.

Extra planning matters most when temperatures approach or drop below 40°F.

Before Pouring

Prepare the site and mix plan.

  • Do not pour on frozen ground.
  • Clear snow and ice before placement.
  • Consider hot water in the ready-mix order.
  • Discuss accelerators and calcium chloride limits.
  • Have blankets, tarps, or enclosures ready before the truck arrives.
Protection

Keep heat in and weather out.

Cold weather concrete succeeds when the crew protects the slab after placement, not just during delivery.

Use thermal protection

Cover fresh concrete with blankets or tarps to retain heat during early curing.

Watch enclosure heat

Temporary enclosures and heaters can help, but combustion heaters need proper ventilation to protect the concrete surface.

Allow more curing time

Avoid stripping forms or loading the concrete too early. Cold conditions require patience.

Call About Cold Weather MixesReady-Mix Concrete