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WebWhat is the lowest temperature you can pour concrete? Experts agree—the best temperature to pour concrete is between 40° – 60°F. ... Concrete in cold weather absolutely does need to be cured—the surface can dry out even faster than in warm weather, if the concrete is warmer than the air. When finishing concrete in cold weather, ... Web9 de abr. de 2007 · Ambient temp: 20s at time of pour, low- to mid-30s high during the day, 20s again overnight Concrete temp: 50° F to 60° F Mix: 3000 psi non-air-entrained for interior slabs Additives: Hot water, 2% nonchloride accelerator or 2% calcium chloride (depending on whether wire mesh was used) Compressive strength specified: >3000 psi … csec rankings jamaica 2021
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