Enhanced cement grinding aid and preparation method thereof

A cement grinding aid and reinforced technology, applied in the field of cement grinding aid and its preparation, can solve the problems of reinforced concrete structure damage, concrete expansion cracking, large expansion coefficient, etc., so as to improve cement performance, increase cement strength, improve Yield effect

Active Publication Date: 2012-10-10
史才军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chloride ions in the chloride salt are the main cause of the corrosion of steel bars and the damage of the reinforced concrete structure. The sulfate ions in the sodium sulfate and the ca...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The enhanced cement grinding aid A1 of this embodiment is made of the following raw materials in mass fraction: 10% triethanolamine, 8% diethanol monoisopropanolamine, 30% diisopropyl monoethanolamine, 5% propylene glycol, wood Sulfonate 8%, sodium lauryl sulfate 4%, sodium humate 3%, water 32%. Wherein the lignosulfonate comprises 35% sodium lignosulfonate and 65% calcium lignosulfonate in mass fraction.

[0018] The preparation method of the reinforced cement grinding aid of the present embodiment comprises the following steps:

[0019] (1) Pour water into the reaction kettle, heat to 45°C, add sodium lauryl sulfate, and stir for 10 minutes;

[0020] (2) Add sodium humate and stir for 5 minutes, then add lignosulfonate and stir for 15 minutes;

[0021] (3) Cool the solution obtained in step (2) to room temperature, add propylene glycol, and stir for 10 minutes;

[0022] (4) Add triethanolamine, diethanol monoisopropanolamine, and diisopropyl monoethanolamine, and s...

Embodiment 2

[0024] The enhanced cement grinding aid A2 of this embodiment is made of the following raw materials in mass fraction: triethanolamine 8%, diethanol monoisopropanolamine 5%, diisopropyl monoethanolamine 43%, propylene glycol 4%, wood Sulfonate 3%, sodium lauryl sulfate 4%, sodium humate 3%, water 30%.

[0025] Wherein the lignosulfonate comprises 35% sodium lignosulfonate and 65% calcium lignosulfonate in mass fraction.

[0026] Its preparation method is with embodiment 1.

Embodiment 3

[0028] The enhanced cement grinding aid A3 of this embodiment is made of the following raw materials in mass fraction: triethanolamine 5%, diethanol monoisopropanolamine 20%, diisopropyl monoethanolamine 20%, propylene glycol 8%, wood Sulfonate 5%, sodium lauryl sulfate 4%, sodium humate 10%, water 28%.

[0029] Wherein the lignosulfonate comprises 35% sodium lignosulfonate and 65% calcium lignosulfonate in mass fraction.

[0030] Its preparation method is with embodiment 1.

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PUM

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Abstract

The invention relates to an enhanced cement grinding aid and a preparation method thereof. The enhanced cement grinding aid comprises the following raw materials by mass percent: 5 to 20% of triethanolamine, 5 to 20% of diethanolamine single isopropyl alcohol amine, 20 to 50% of diisopropyl monoethanolamine, 5 to 8% of propylene glycol, 2 to 8% of lignosulfonate, 3 to 10% of sodium lauryl sulfate, 3 to 10% of sodium humate and 10 to 30% of water. The invention further comprises the preparation method of the enhanced cement grinding aid. The prepared enhanced cement grinding aid has the advantages that the strength of cement is improved, the production efficiency is improved, and the cost is lowered.

Description

technical field [0001] The invention relates to a cement grinding aid and a preparation method thereof, in particular to an enhanced cement grinding aid and a preparation method thereof. Background technique [0002] Grinding is an important link in the cement production process. With the development of grinding technology, new grinding equipment such as vertical mill and asteroid mill have appeared; however, due to the high manufacturing cost of these equipment and the unknown effect on the performance of finished cement particles, they still cannot be used in cement in the short term. Widely used in production. In the process of converting cement clinker into finished cement, most cement producers still use traditional ball mills for cement grinding. The ball mill was first used in the crushing of ore to reduce the particle size and increase the specific surface area. Although ball mills have been used for quite a long time, the shortcoming of low grinding efficiency of...

Claims

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Application Information

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IPC IPC(8): C04B24/18C04B103/52
Inventor 史才军龙兰
Owner 史才军
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