concrete air entraining agent
An air-entraining agent and concrete technology, applied in the field of concrete air-entraining agent, can solve the problems of ineffective fresh concrete workability, unreasonable bubble structure, unstable bubbles, etc., and achieves good antifreeze effect and excellent foam stabilization effect. , the effect of good air entrainment
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Embodiment 1
[0021] The concrete air-entraining agent is made of the following raw materials in parts by weight: 60 parts of rosin powder (particle diameter is 2 μm), 18 parts of sodium hydroxide (mass concentration is 30%), 16 parts of sulfuric acid (mass concentration is 20%), B 8 parts of diol, 13 parts of bisphenol A, 7 parts of pentaerythritol, and 130 parts of water.
[0022] The preparation method of the above-mentioned concrete air-entraining agent is as follows: mix all the raw materials, stir for 30 minutes, put them into a reaction kettle, raise the temperature to 85°C, and keep it warm for 50 minutes to obtain it.
Embodiment 2
[0024] Concrete air-entraining agent is made from the following raw materials by weight: 55 parts of rosin powder (particle diameter is 4 μm), 16 parts of sodium hydroxide (mass concentration is 32%), 14 parts of sulfuric acid (mass concentration is 25%), B 11 parts of diol, 11 parts of bisphenol A, 9 parts of pentaerythritol, and 120 parts of water.
[0025] The preparation method of the above-mentioned concrete air-entraining agent is as follows: mix all the raw materials, stir for 30 minutes, put them into a reaction kettle, raise the temperature to 85°C, and keep it warm for 50 minutes to obtain it.
Embodiment 3
[0027] The concrete air-entraining agent is made from the following raw materials in parts by weight: 50 parts of rosin powder (particle diameter is 6 μm), 14 parts of sodium hydroxide (mass concentration is 35%), 11 parts of sulfuric acid (mass concentration is 30%), B 13 parts of diol, 9 parts of bisphenol A, 11 parts of pentaerythritol, and 110 parts of water.
[0028] The preparation method of the above-mentioned concrete air-entraining agent is as follows: mix all the raw materials, stir for 30 minutes, put them into a reaction kettle, raise the temperature to 85°C, and keep it warm for 50 minutes to obtain it.
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