Polycarboxylic acid high-slump-retaining zero-bleeding high-performance water reducing agent
A technology of polycarboxylic acid series and water reducing agent, which is applied in the fields of high performance concrete, ultra-high strength concrete, self-compacting concrete, polycarboxylic acid series high performance water reducing agent with high slump retention and zero bleeding, and can solve the problems of low energy consumption and so on. , to achieve the effect of improving later strength, improving workability, and high water reduction rate
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Embodiment 1
[0017] Example 1: Add 1.9kg of deionized water with the above composition and ratio into the reaction pot and raise the temperature to 30°C-50°C, add 60kg of polycarboxylate water reducer, and add 35kg of polycarboxylate ether type water reducer , keep the temperature, add 1.0kg of sodium gluconate and 1.5kg of sodium lignosulfonate as activators, and stir for 30 minutes to form a synthetic product with a specific structure. After cooling to normal temperature, add 0.3kg of ion-exchange membrane alkali to adjust the pH, add 0.3kg of anti-corrosion, anti-mildew and fungicide and continue to stir for 30 minutes, which is the finished product.
Embodiment 2
[0018] Example 2: Add 1.6kg of deionized water with the above composition and ratio into the reaction pot and raise the temperature to 30°C-50°C, add 60kg of polycarboxylate water reducer, and add 35kg of polycarboxylate water reducer , keep the temperature, add 2.0kg of sodium gluconate and 0.5kg of sodium lignosulfonate as activators, and stir for 30 minutes to form a synthetic product with a specific structure. After cooling to normal temperature, add 0.5kg of ion-exchange membrane alkali to adjust the pH, add 0.4kg of anti-corrosion, anti-mildew and fungicide, and continue stirring for 30 minutes to obtain the finished product.
Embodiment 3
[0019] Example 3: Add 1.8kg of deionized water with the above composition and ratio into the reaction pot and raise the temperature to 30°C-50°C, add 70kg of polycarboxylate water reducer, and add 25kg of polycarboxylate ether type water reducer , keep the temperature, add 1.5kg of sodium gluconate and 1.0kg of sodium lignosulfonate as activators, and stir for 30 minutes to form a synthetic product with a specific structure. After cooling to normal temperature, add 0.4kg of ion-exchange membrane alkali to adjust the pH, add 0.3kg of anti-corrosion, anti-mildew and fungicide, and continue stirring for 30 minutes to obtain the finished product.
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