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Concrete superplasticizer and preparation method thereof

A technology of concrete water-reducing agent and high-efficiency water-reducing agent is applied in the field of water-reducing agent, which can solve the problems of single performance of water-reducing agent, inability to resist cracking, and difficult to preserve, and achieve stable performance, convenient preservation, and improved cracking resistance. performance effect

Inactive Publication Date: 2019-12-24
江苏兆佳建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the water reducing agent currently used has single performance, is not easy to store, and cannot play the role of crack resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-efficiency water reducer for concrete, the mass parts of the concrete water reducer are composed as follows: 40 parts of polycarboxylate water reducer mother liquor, 20 parts of sodium sulfite, 20 parts of sodium hydroxide, 20 parts of fly ash, 5 parts of borax, corn 5 parts of rods, 5 parts of corn cobs, 5 parts of sugar, 5 parts of slump retaining agent, 10 parts of starch, 10 parts of viscosity modifier, 5 parts of defoamer, 5 parts of initiator, and 60 parts of water.

[0019] Further, the initiator is ammonium sulfate.

[0020] A preparation method for concrete high-efficiency water reducer, comprising the following steps:

[0021] Step 1: Stir and pulverize corn stalks and corncobs respectively, then mix with sodium sulfite, fly ash, borax, starch, and water, and heat to fully dissolve the above ingredients to obtain a mixed material 1;

[0022] Step 2: Add polycarboxylate superplasticizer mother liquor, sodium hydroxide, and white sugar to the mixed mater...

Embodiment 2

[0026] A high-efficiency water reducer for concrete, the mass parts of the concrete water reducer are composed as follows: 42.5 parts of polycarboxylate water reducer mother liquor, 25 parts of sodium sulfite, 25 parts of sodium hydroxide, 25 parts of fly ash, 7.5 parts of borax, corn 7.5 parts of rods, 7.5 parts of corncobs, 7.5 parts of white sugar, 7.5 parts of slump retaining agent, 15 parts of starch, 15 parts of viscosity modifier, 7.5 parts of defoamer, 7.5 parts of initiator, and 70 parts of water.

[0027] Further, the initiator is ammonium sulfate.

[0028] A preparation method for concrete high-efficiency water reducer, comprising the following steps:

[0029] Step 1: Stir and pulverize corn stalks and corncobs respectively, then mix with sodium sulfite, fly ash, borax, starch, and water, and heat to fully dissolve the above ingredients to obtain a mixed material 1;

[0030] Step 2: Add polycarboxylate superplasticizer mother liquor, sodium hydroxide, and white sug...

Embodiment 3

[0034] A high-efficiency water reducer for concrete, the mass parts of the concrete water reducer are composed as follows: 45 parts of polycarboxylate water reducer mother liquor, 30 parts of sodium sulfite, 30 parts of sodium hydroxide, 30 parts of fly ash, 10 parts of borax, corn 10 parts of rods, 10 parts of corncobs, 10 parts of sugar, 10 parts of slump retaining agent, 20 parts of starch, 20 parts of viscosity modifier, 10 parts of defoamer, 10 parts of initiator, 80 parts of water.

[0035] Further, the initiator is ammonium sulfate.

[0036] A preparation method for concrete high-efficiency water reducer, comprising the following steps:

[0037] Step 1: Stir and pulverize corn stalks and corncobs respectively, then mix with sodium sulfite, fly ash, borax, starch, and water, and heat to fully dissolve the above ingredients to obtain a mixed material 1;

[0038] Step 2: Add polycarboxylate superplasticizer mother liquor, sodium hydroxide, and white sugar to the mixed mat...

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PUM

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Abstract

The invention discloses a concrete high-efficiency water reducing agent and a preparation method thereof. The concrete water reducing agent is prepared from the following components in parts by mass:40 to 45 parts of polycarboxylate superplasticizer mother liquor, 20-30 parts of sodium sulfite, 20-30 parts of sodium hydroxide, 20-30 parts of fly ash, 5-10 parts of borax, 5-10 parts of cornstalk,5-10 parts of corncob, 5-10 parts of white sugar, 5-10 parts of a slump retaining agent, 10-20 parts of starch, 10-20 parts of a viscosity modifier, 5-10 parts of a defoaming agent, 5-10 parts of an initiator and 60-80 parts of water. The water reducing agent is convenient to store and stable in performance, and the crack resistance of the water reducing agent is improved.

Description

technical field [0001] The invention relates to a water reducer, in particular to a high-efficiency water reducer for concrete and a preparation method thereof, belonging to the technical field of water reducers. Background technique [0002] Water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete. Most of them are anionic surfactants, such as lignosulfonate, naphthalenesulfonate formaldehyde polymer, etc. After being added to the concrete mixture, it can disperse the cement particles, improve its workability, reduce the unit water consumption, improve the fluidity of the concrete mixture; or reduce the unit cement consumption and save cement. [0003] However, the currently used water reducers have single performance, are not easy to store, and cannot play the role of crack resistance. Contents of the invention [0004] Aiming at the above-mentioned problems in the prior art, the present invention provides...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/30
CPCC04B40/0039C04B2103/302C04B22/147C04B22/062C04B22/0006C04B22/08C04B24/001C04B24/10C04B24/38C04B2103/44C04B2103/50
Inventor 崔松
Owner 江苏兆佳建材科技有限公司