Cement grinding aid and preparation method thereof

A cement grinding aid, mass percentage technology, applied in the field of cement admixture, can solve the problems of unstable grinding aid quality, insignificant strengthening effect, fluctuation of cement quality, etc., to improve economic and social benefits, particle size distribution Reasonable and low-cost effect

Active Publication Date: 2018-01-19
DONGHAI CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing liquid cement grinding aids still have the following deficiencies: the cost of the grinding aid product is relatively high; the effect of strengthening the cement with a large amount of limestone is not obvious; it contains harmful components such as chloride ions that affect the service life of buildings; Unstable quality of grinding agent, high dosage, resulting in fluctuations in cement quality

Method used

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  • Cement grinding aid and preparation method thereof
  • Cement grinding aid and preparation method thereof
  • Cement grinding aid and preparation method thereof

Examples

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Effect test

Embodiment 1

[0022] The embodiment of the present invention provides a cement grinding aid, comprising the following components in mass content: polyethylene glycol 8%, sorbitol 8%, polyglycerol fatty acid ester 1%, diethanol monoisopropanolamine 8% , Triisopropanolamine 6%, Sodium Hydroxide 3%, Sodium Polyacrylate 5%, Microcrystalline Cellulose 3%, and the remainder is water.

[0023] Follow the steps below to prepare:

[0024] Step 1: Weigh sodium hydroxide according to the proportion of 3%, and dissolve it in water with a mass percentage of the formula, stir evenly, and cool down to room temperature to prepare solution 1;

[0025] Step 2: Take sodium polyacrylate according to a 5% ratio, dissolve it in the solution 1, and stir evenly after dissolving to obtain a solution 2;

[0026] Step 3: Weigh 8% polyethylene glycol, 8% sorbitol, 1% polyglycerol fatty acid ester, 8% diethanol monoisopropanolamine, and 6% triisopropanolamine, and add them to the solution two in sequence , and stir e...

Embodiment 2

[0029] The embodiment of the present invention provides a cement grinding aid, comprising the following components by mass content: polyethylene glycol 9%, sorbitol 7%, polyglycerol fatty acid ester 2%, diethanol monoisopropanolamine 7% , Triisopropanolamine 7%, Sodium Hydroxide 4%, Sodium Polyacrylate 4%, Microcrystalline Cellulose 2%, and the remainder is water.

[0030] Follow the steps below to prepare:

[0031] Step 1: Weigh sodium hydroxide according to the 4% ratio, and dissolve it in water with a mass percentage of the formula, stir evenly, and cool down to room temperature to prepare solution 1;

[0032] Step 2: Weigh sodium polyacrylate according to the proportion of 4%, dissolve it in the solution 1, and stir it evenly after dissolving to obtain the solution 2;

[0033] Step 3: Weigh 9% polyethylene glycol, 7% sorbitol, 2% polyglycerol fatty acid ester, 7% diethanol monoisopropanolamine, and 7% triisopropanolamine, and add them to the solution two in sequence , an...

Embodiment 3

[0036] The embodiment of the present invention provides a cement grinding aid, comprising the following components by mass content: polyethylene glycol 6%, sorbitol 9%, polyglycerol fatty acid ester 3%, diethanol monoisopropanolamine 9% , Triisopropanolamine 6%, Sodium Hydroxide 5%, Sodium Polyacrylate 3%, Microcrystalline Cellulose 4%, and the remainder is water.

[0037] Follow the steps below to prepare:

[0038] Step 1: Weigh sodium hydroxide according to the 5% ratio, and dissolve it in water with a mass percentage of the formula, stir evenly, and cool down to room temperature to obtain solution 1;

[0039] Step 2: Weigh sodium polyacrylate according to the proportion of 3%, dissolve it in the solution 1, and stir evenly after dissolving to obtain solution 2;

[0040] Step 3: Weigh 6% polyethylene glycol, 9% sorbitol, 3% polyglycerol fatty acid ester, 9% diethanol monoisopropanolamine, and 6% triisopropanolamine, and add them to the solution two in sequence , and stir e...

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Abstract

The invention discloses a cement grinding aid and a preparation method thereof. The cement grinding aid is prepared from the following components by mass content: 5 to 10% of polyethylene glycol, 5 to10% of sorbitol, 1 to 3% of polyglycerol fatty acid ester, 5 to 10% of diethanolisopropanolamine, 5 to 10% triisopropanolamine, 1 to 5% of sodium hydroxide, 2 to 8% of sodium polyacrylate, 1 to 5% ofmicrocrystalline cellulose and the balance of water. The cement grinding aid disclosed by the invention has the beneficial effects that no matter which can affect concrete performance and building service life and has harm to human health is doped into the cement grinding aid, so that the cement grinding aid has safety and environmental friendliness; all the raw materials have a synergistic effect, so that cement fineness reduction is facilitated, reasonable particle size distribution of the cement grinding aid is guaranteed, an early hydration heat release rate of cement where mineral admixture is doped is reduced, and cement strength is improved; under the condition of guaranteeing cement strength and use, production cost can be reduced, and economical benefit and social benefit of cement production enterprises are improved.

Description

technical field [0001] The invention relates to the field of cement admixtures, in particular to a cement grinding aid and a preparation method thereof. Background technique [0002] As the building material with the widest application and the largest amount of use, cement has gradually become the basis for the development of human life, and in the next few decades, cement will still be the main building material for social development. With the development and progress of the cement industry, there are many ways to improve the performance and quality of cement. The common application is to add cement grinding aids in the process of cement grinding. By adding cement grinding aids, the grinding efficiency of the mill can be significantly improved, the power consumption and steel ball loss can be reduced, and the cement output can be increased. [0003] Cement grinding aids are divided into powder cement grinding aids and liquid cement grinding aids. Since the powder cement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/52
Inventor 孙少飞王延国王晓冉王华德
Owner DONGHAI CONSTR GRP
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