Kentucky · answered by Verika · verified against sources
What are the rules for placing concrete in cold weather on Kentucky DOT projects?
Do not place concrete if ambient temps may drop below 45°F (3 days) or 40°F (4 days) unless adequate heating/insulation is provided. Maintain concrete temp ≥45°F for 7 days or until required strength is achieved. Heat water/aggregate in cold weather. Submit a written protection plan for Engineer approval. Use recording thermometers. Avoid frost-coated surfaces or temps ≤32°F. Do not use admixtures to prevent freezing [1,3,7].
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Verika provides information with citations to help you find and understand the rules that apply to your work. It is not a substitute for professional engineering or legal judgment. Answer generated 2026-08-28; always confirm against the cited source for your project.