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Novel cement grinding aid

A cement grinding aid, a new technology, applied in the field of building materials, can solve the problems affecting the performance of cement, unreasonable formula, etc., achieve the effect of accelerating fluidity, solving the phenomenon of powder agglomeration, and increasing the content of fine powder particles

Inactive Publication Date: 2017-01-18
北海金匠水泥制品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unreasonable formula of the existing cement grinding aids, the performance of cement is affected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A new type of cement grinding aid, consisting of the following raw materials in parts by weight: 20 parts of propylene alcohol, 20 parts of diethanolamine, 20 parts of maleic anhydride, 10 parts of sodium lignosulfonate, 1 part of sodium pyrophosphate, lignosulfonic acid 1 part of magnesium salt, 1 part of sodium dodecyl sulfonate, 5 parts of carboxymethyl cellulose.

Embodiment 2

[0012] A new type of cement grinding aid, consisting of the following raw materials in parts by weight: 30 parts of propylene alcohol, 30 parts of diethanolamine, 30 parts of maleic anhydride, 15 parts of sodium lignosulfonate, 8 parts of sodium pyrophosphate, lignosulfonic acid 10 parts of magnesium salt, 5 parts of sodium dodecyl sulfonate, 10 parts of carboxymethyl cellulose.

Embodiment 3

[0014] A new type of cement grinding aid, consisting of the following raw materials in parts by weight: 25 parts of propylene alcohol, 25 parts of diethanolamine, 25 parts of maleic anhydride, 12 parts of sodium lignosulfonate, 5 parts of sodium pyrophosphate, lignosulfonic acid 5 parts of magnesium salt, 3 parts of sodium lauryl sulfate, 8 parts of carboxymethyl cellulose.

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PUM

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Abstract

The invention discloses a novel cement grinding aid, which comprises the following raw materials by weight: 20-30 parts of allyl alcohol, 20-30 parts of diethanolamine, 20-30 parts of maleic anhydride, 10-15 parts of sodium lignin sulfonate, 1-8 parts of sodium pyrophosphate, 1-10 parts of a magnesium lignin sulfonate salt, 1-5 parts of sodium dodecylsulfonate, and 5-10 parts of carboxymethylcellulose. The invention provides the novel cement grinding aid, wherein the carboxymethyl cellulose is added in the formula of the cement grinding aid, such that the powder agglomeration phenomenon is significantly solved, the gradation of the particles is improved, the particle content of the micro-powder is increased, the fluidity of the cement powder is accelerated, and the powder material is sufficiently grinded so as to improve the fineness and the strength of the cement.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a novel cement grinding aid. Background technique [0002] Cement grinding aid is an additive that is added to the mill during the cement grinding process to help the grinding without damaging the performance of cement. It can change the dispersion of materials inside the mill and the flow rate of cement, improve the conveying efficiency of cement, and effectively eliminate the phenomenon of electrostatic adsorption of cement fine particles and ball paste grinding, and can increase the output of the mill by about 20%. , while effectively reducing over-grinding, optimizing cement particle gradation, and reducing cement sieve residue. The composite grinding aid also contains an activator that stimulates the potential activity of cement admixtures such as fly ash and slag powder, so as to increase the strength of cement, increase the amount of admixtures in cement produc...

Claims

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Application Information

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IPC IPC(8): C04B24/38
CPCC04B40/0039C04B2103/52C04B24/02C04B24/122C04B24/04C04B24/18C04B22/16C04B24/161C04B24/383
Inventor 刘兴汉
Owner 北海金匠水泥制品有限责任公司
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