Texas · answered by Verika · verified against sources
What are the rules for placing concrete in cold weather on Texas DOT projects?
Do not place concrete when ambient shade temp is below 40°F and falling unless approved. Place only when ambient shade temp is ≥35°F and rising or ≥40°F. Protect concrete from frost contact (temp ≤32°F). Maintain concrete temp between 50–95°F at placement. Use recording thermometers/maturity meters to verify protection. Cover concrete within 1 hr of placement if cold weather risks freezing. Heat aggregates/water to achieve 50–85°F mix temp (water ≤180°F, aggregates ≤150°F). Ensure aggregates are frost-free. Provide approved cold-weather protection (coverings, artificial heating) before placement if needed. Repair/replace unsatisfactory concrete at contractor’s expense.
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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.