Polycarboxylic water reducer applicable to manufactured sand and preparation method of polycarboxylic water reducer

A technology of polycarboxylic acid and water reducer, which is applied in the field of concrete admixtures, can solve the problems of complicated preparation process and high production cost, and achieve the effects of simple preparation method, improved plastic retention, and improved workability

Active Publication Date: 2012-09-12
ZHUZHOU KAMILE SU BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its preparation process is more complicated and its production cost is higher.

Method used

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  • Polycarboxylic water reducer applicable to manufactured sand and preparation method of polycarboxylic water reducer
  • Polycarboxylic water reducer applicable to manufactured sand and preparation method of polycarboxylic water reducer
  • Polycarboxylic water reducer applicable to manufactured sand and preparation method of polycarboxylic water reducer

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Experimental program
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Effect test

Embodiment 1

[0021] In the reaction kettle, add 200 kg of 96616 polycarboxylate superplasticizer mother liquor with a solid content of 40%, control the temperature at 25-30°C, add water and 1.5 kg of fatty alcohol sulfonate under stirring conditions, and react for 40 minutes Finally, add 0.25 kg of polyether polyol and react at a constant temperature for 1 to 1.5 hours to obtain a polycarboxylate water reducer suitable for machine-made sand with a solid content of 10%.

Embodiment 2

[0023] In the reaction kettle, add 200 kg of 96616 polycarboxylate superplasticizer mother liquor with a solid content of 40%, control the temperature at 25-30°C, add water and 2.2 kg of fatty alcohol sulfonate under stirring conditions, and react for 40 minutes Finally, add 0.25 kg of polyether polyol and react at a constant temperature for 1 to 1.5 hours to obtain a polycarboxylate water reducer suitable for machine-made sand with a solid content of 10%.

Embodiment 3

[0025] In the reaction kettle, add 200 kg of 96616 polycarboxylate superplasticizer mother liquor with a solid content of 40%, control the temperature at 25-30°C, add water and 3.2 kg of fatty alcohol sulfonate under stirring conditions, and react for 40 minutes Finally, add 0.35 kg of polyether polyol and react at a constant temperature for 1 to 1.5 hours to obtain a polycarboxylate water reducer suitable for machine-made sand with a solid content of 10%.

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Abstract

Disclosed are a polycarboxylic water reducer applicable to manufactured sand and a preparation method of the polycarboxylic water reducer. 96616 polycarboxylic water reducer mother liquor with the solid content of 40% is compounded with fatty alcohol sulphonate and polyether polyol to form the polycarboxylic water reducer. The preparation method includes adding the 96616 polycarboxylic water reducer mother liquor with the solid content of 40% into a reaction kettle; controlling the temperature to range from 25 DEG C to 30 DEG C; adding water and the fatty alcohol sulphonate while stirring; adding the polyether polyol after reacting for 30-50 minutes; and obtaining the polycarboxylic water reducer which has the solid content of 10% and is applicable to the manufactured sand after reacting for 1-1.5 hours at constant temperature. The polycarboxylic water reducer has the advantages that workability and flowing retention ability of manufactured sand class concrete are improved, and work performances of the concrete are enhanced. The preparation method is simple and facilitates production.

Description

technical field [0001] The invention relates to a concrete admixture, in particular to a polycarboxylate water reducer suitable for machine-made sand and a preparation method thereof. Background technique [0002] The development of human construction technology is inseparable from the development of concrete technology, and the development of concrete technology is inseparable from the development of admixture technology. As an important concrete admixture, water reducing agent can control the water consumption of concrete to the greatest extent. , improve the durability of concrete, overcome the excessive loss of ordinary concrete slump, change the setting time of concrete, enhance the ultimate compressive strength of concrete, etc., so it plays an important role in the application and development of concrete technology and building materials. [0003] The polycarboxylate superplasticizer with a comb-shaped molecular structure has excellent properties such as low dosage, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/16C04B103/30
Inventor 廖声金
Owner ZHUZHOU KAMILE SU BUILDING MATERIALS
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