If the temperature is below a few degrees, you can’t hit concrete.

Best answer: below -15℃. There is no clear regulation on the minimum temperature below which concrete pouring construction should not be carried out in the construction specification, but the antifreeze classified in China’s specification can reach the minimum specification of -15℃, and its service limit temperature can reach -20℃. From the perspective of pouring effect or concrete strength guarantee, it is not suitable for construction below -15℃.

Lower than -15℃. The average daily temperature is higher than 35 degrees, and measures should be taken to reduce the temperature of concrete entering the formwork when construction is started in summer, which should not be higher than 35 degrees. The average daily temperature is lower than 5 degrees for 5 consecutive days. When entering the winter construction, measures should be taken to ensure that the temperature of concrete entering the formwork cannot be lower than 5 degrees. There is no clear regulation on the minimum temperature below which concrete pouring construction should not be carried out in the construction specification, but the antifreeze classified in China’s specification can reach the minimum specification of -15℃, and its service limit temperature can reach -20℃. From the perspective of pouring effect or concrete strength guarantee, it is not suitable for construction below -15℃.

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