my country’s climate and temperature changes: from the north of the Yangtze River to the south of the Yellow River, although the temperature can drop below 5℃, it is basically above 0℃. In winter construction, only early strengthening agent is added That is to say, the quality can be guaranteed. North of the Yellow River, the temperature will be below 0°C for several months, and antifreeze is required for winter construction. In North and Northwest China, where the minimum temperature is above -10°C, use early-strength antifreeze. In the northeastern region of Inner Mongolia and Xinjiang, the winter temperature is often below -10°C. Antifreeze must be used for concrete construction in winter.
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