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Efficient composite liquid cement grinding aid and preparation method thereof

A cement grinding aid and liquid technology, applied in the field of grinding aids, can solve the problems of restricting the excessive use of triethanolamine, exceeding 0.03%-0.05% of concrete performance, adverse effects, etc., and achieves improved adaptability, stable quality, and increased The effect of early and late strength

Active Publication Date: 2014-07-02
LIAONING KELONG FINE CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main component of the more commonly used grinding aid is triethanolamine, but triethanolamine in the subsequent concrete admixture should also be used as an early strength component. If the dosage exceeds 0.03%-0.05%, it will have an adverse effect on the performance of concrete. Also restricted the excessive use of triethanolamine to a certain extent

Method used

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  • Efficient composite liquid cement grinding aid and preparation method thereof
  • Efficient composite liquid cement grinding aid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh each component according to the following weight percentage: 10% triethanolamine, 15% chloropropanediol, 2% sodium acetate, 1% sodium thiosulfate, 10% sodium chloride, 2% polycarboxylate superplasticizer, 0.5% glacial acetic acid %, and the rest is water.

[0018] Inject water into the reaction kettle, add sodium acetate, sodium thiosulfate, and sodium chloride at room temperature, stir for 2 hours, add triethanolamine, 3-propylene glycol, polycarboxylate water reducer and stir for 1 hour after all dissolve, and finally add glacial acetic acid and stir After 30 minutes, the product is filtered with a 200-mesh filter and then discharged into barrels.

Embodiment 2

[0020] Each component is weighed according to the following percentages by weight: 30% of triethanolamine, 50% of 3-propylene glycol, 5% of polycarboxylate superplasticizer, and the rest is water.

[0021] Inject water into the reaction kettle, put triethanolamine, 3-propylene glycol, and polycarboxylate water-reducer at room temperature, stir for 1 hour, discharge and load into barrels after all are dissolved.

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Abstract

A new type of composite high-efficiency liquid cement grinding aid is composed of triethanolamine, 3-propylene glycol, sodium acetate, sodium thiosulfate, sodium chloride, polycarboxylate superplasticizer, glacial acetic acid and water. Among them: triethanolamine 10-80%, chloropropanediol 10-80%, sodium acetate 0-20%, sodium thiosulfate 0-20%, sodium chloride 0-15%, polycarboxylate superplasticizer 0-8% , Glacial acetic acid 0-5%, the rest is water. The preparation method of the composite high-efficiency liquid cement grinding aid is to inject water into the reaction kettle, put sodium acetate, sodium thiosulfate, and sodium chloride into stirring at room temperature, and add triethanolamine, 3-propylene glycol, and polycarboxylate water reducer after dissolving Stir, then add glacial acetic acid and stir, stir evenly and discharge after the temperature is stable. Its grinding aid has the effect of increasing production and increasing strength, especially it can improve the adaptability of cement and admixtures in the process of concrete production.

Description

technical field [0001] The invention relates to a grinding aid for cement production, in particular to a composite high-efficiency liquid cement grinding aid which can improve the adaptability of cement and admixtures in the concrete production process and improve the quality of cement. Background technique [0002] Grinding aids for cement production are mainly used to increase the output per hour of the cement grinding system, obtain reasonable process operating parameters, increase the strength of cement at each stage, increase the amount of mixed materials, and reduce the overall energy consumption of cement production. At present, the main component of the more commonly used grinding aid is triethanolamine, but triethanolamine in the subsequent concrete admixture should also be used as an early strength component. If the dosage exceeds 0.03%-0.05%, it will have an adverse effect on the performance of concrete. Also restricted the excessive use of triethanolamine to a ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/24C04B103/30
Inventor 秦立翠姜艳王笑衡
Owner LIAONING KELONG FINE CHEM
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