Cement accelerator, and preparation method thereof

A technology of quick-setting agent and cement, applied in the field of cement, can solve problems such as reducing cement strength, and achieve the effects of reducing raw material cost, reducing environmental pollution, good social and economic benefits

Inactive Publication Date: 2018-06-29
广西高企科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims at the problems existing in the existing cement quick-setting agent, and provides a cement quick-setting agent with fast setting, non-corrosiveness, safety and environmental protection, no reduction in cement strength, and low cost and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A cement quick-setting agent, made of the following raw materials in parts by weight: 80 parts of bauxite waste residue, 30 parts of sodium carbonate, 15 parts of bentonite, 8 parts of calcium lignosulfonate, 7 parts of disodium hydrogen phosphate, ether sulfuric acid 4 parts of triethanolamine, 2 parts of sodium dodecyl diphenyl ether disulfonate, 1 part of methylnaphthalene sulfonate formaldehyde condensate, 1.5 parts of potassium N-acyl glutamate and sodium lauryl methylaminoethyl phosphate 2 servings.

[0027] Its preparation method comprises the following steps:

[0028] S1: Stirring and mixing: Weigh each raw material according to the above formula, add each raw material to a strong dispersing mixer, add water to make a paste, and stir for 60 minutes at a temperature of 70°C, a vacuum of 0.08Mpa, and a rotation speed of 200rpm to obtain a mixture ;

[0029] S2: Dry the above-mentioned mixture at 80° C., and grind it to 200 mesh to obtain a cement quick-setting a...

Embodiment 2

[0031] A cement quick-setting agent, made of the following raw materials in parts by weight: 100 parts of bauxite waste residue, 30 parts of sodium carbonate, 20 parts of bentonite, 10 parts of calcium lignosulfonate, 5 parts of calcium hydrogen phosphate, three parts of ether sulfate 5 parts of ethanolamine, 1.5 parts of sodium dodecyl diphenyl ether disulfonate, 3 parts of methylnaphthalene sulfonate formaldehyde condensate, 1 part of potassium N-acyl glutamate and 3 parts of sodium lauryl methylaminoethyl phosphate share.

[0032] Its preparation method comprises the following steps:

[0033] S1: Stirring and mixing: Weigh each raw material according to the above formula, add each raw material to a powerful dispersing mixer, add water to make a paste, and stir for 30 minutes at a temperature of 80°C, a vacuum of 0.09Mpa, and a rotation speed of 300rpm to obtain a mixture ;

[0034] S2: Dry the above mixture at 90°C and grind it to 160 mesh to obtain the cement quick-setti...

Embodiment 3

[0036] A cement quick-setting agent, made of the following raw materials in parts by weight: 50 parts of bauxite waste residue, 40 parts of sodium carbonate, 15 parts of bentonite, 5 parts of sodium lignosulfonate, 10 parts of calcium hydrogen phosphate, trisodium ether sulfate 5 parts of ethanolamine, 1 part of sodium dodecyl diphenyl ether disulfonate, 2 parts of methylnaphthalene sulfonate formaldehyde condensate, 0.5 parts of potassium N-acyl glutamate and 1.5 parts of sodium lauryl methylaminoethyl phosphate share.

[0037] Its preparation method comprises the following steps:

[0038] S1: Stirring and mixing: Weigh each raw material according to the above formula, add each raw material to a powerful dispersing mixer, add water to make a paste, and stir for 60 minutes at a temperature of 60°C, a vacuum of 0.08Mpa, and a rotation speed of 100rpm to obtain a mixture ;

[0039] S2: Dry the above-mentioned mixture at 100° C., and grind it to 100 mesh to obtain a cement quic...

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Abstract

The invention discloses a cement accelerator, and a preparation method thereof. The cement accelerator is prepared from, by weight, 50 to 100 parts of bauxite slag, 20 to 40 parts of sodium carbonate,10 to 30 parts of bentonite, 5 to 15 parts of sulfonated lignin, 5 to 10 parts of a phosphate, 3 to 5 parts of ether sulfate triethanolamine, 1 to 3 parts of Sodium Lauryl Diphenyl Ether Disulfonate,1 to 3 parts of a methylnaphthalene sulfonic formaldehyde polycondensate, 0.5 to 2 parts of N-acyl potassium glutamate, and 1 to 3 parts of Lauryl methyl aminoethyl sodium phosphate. When the cementaccelerator is mixed with cement, hydration reaction is realized as soon as the cement is mixed with water, cement mortar rapid hardening coagulation is realized, concrete and cement solidification speeds are accelerated greatly; the compatibility of the cement accelerator with cement mortar is excellent, and cement concrete intensity is not reduced.

Description

technical field [0001] The invention relates to the technical field of cement, in particular to quick-setting cement and a preparation method thereof. Background technique [0002] In recent years, with the development of the national economy, my country's building materials industry has developed rapidly, especially the demand for cement is very large, but under ordinary construction conditions, cement is slow to set, takes a long time to maintain, and the construction progress is slow, which does not meet the requirements of modern construction. , In order to speed up the efficiency, a variety of cement quick-setting agents have been developed at home and abroad in recent decades, which speed up the cement setting speed and improve the construction efficiency. [0003] Adding the accelerator to the cement slurry can promote the hydration reaction of minerals such as tricalcium aluminate and tricalcium silicate in cement, and form calcium aluminate hydrate, ettringite, calci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/22C04B103/12
CPCC04B40/0039C04B2103/12C04B18/12C04B22/10C04B14/104C04B24/18C04B22/16C04B24/16C04B24/20C04B24/226C04B24/123C04B24/121
Inventor 梁杰锋于强
Owner 广西高企科技有限公司
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