Yulong brand concrete antifreeze is combined with winter application temperature conditions, which can accelerate the condensation and hardening of concrete under negative temperature conditions. The strength increases significantly and does not affect the development of later strength. The chlorine-free salt avoids corrosion of steel bars and improves the strength of concrete. Durability.
When the temperature is below -5 degrees, it is generally 5%.
Dosage: The specific dosage can only be determined after a concrete mix test. General dosage ratio (by weight):
Liquid: temperature -5 ~ -20℃, accounting for 2.0-5.0% of the cementitious material
Powder: temperature -5 ~ -20 ℃ accounts for 2.0-5.0% of cementitious materials
Function: Mainly used for commercial concrete, suitable for reinforced concrete, prestressed concrete and fly ash-mixed concrete.
How to use concrete antifreeze and precautions:
1. Concrete using concrete antifreeze must be constructed in accordance with the relevant regulations on concrete construction in winter (you can refer to "Concrete Admixtures" 》 (GB 8076-2008) At the same time, specific construction arrangements should be carried out in accordance with the provisions of "Concrete Antifreeze" (JC475). General requirements: When the outdoor daily average temperature is stable below 5℃ for 5 consecutive days, winter construction will begin, and antifreeze must be added Yes, antifreeze is available at minus 5 degrees, minus 10 degrees, and minus 15 degrees).
2. Concrete antifreeze can be used directly, and its dosage is 2 ~ 5% of the cementitious material.
3. Determine the slump loss before using commercial concrete to ensure the pumpability of the concrete.
4. Adjust the dosage appropriately according to different temperature changes.
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