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Cement grineing aid and its preparation method

A cement grinding aid and grinding aid technology, applied in the field of cement additives, can solve problems such as high cost, unacceptable by manufacturers, and damage to concrete durability, so as to improve the workability of cement, increase the amount of mixing, and strengthen cement intensity effect

Inactive Publication Date: 2006-06-14
曾大勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many kinds of existing grinding aids, there are still many problems: 1. The cement grinding aids (such as triethanolamine, etc.) with organic matter as the main component are difficult for manufacturers to accept due to the high cost
Once the use of such grinding aids is excessive, it will cause damage to the durability of concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Nano-CaCO 3 50 parts, nano-SiO 2 20 parts, 4 parts of triethanolamine, 24 parts of calcium formate and 2 parts of carboxycarboxylic acid are placed in a container, mixed evenly, and ground into fine powder with a Raymond mill to obtain the grinding aid. Tested by the Yunnan Provincial Construction Engineering Quality Supervision and Inspection Station, all indicators have reached or exceeded the national standards. The results are shown in Table 1.

[0012] serial number

Embodiment 2

[0014] Repeat embodiment 1, have following difference: the nano-CaCO 3 40 parts, nano-SiO 2 10 parts, 3 parts of triethanolamine, 20 parts of calcium formate and 1 part of carboxylic acid are placed in a container and mixed evenly.

Embodiment 3

[0016] Repeat Example 1 with the following differences: Nano CaCO 3 45 parts, nano-SiO 2 15 servings.

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PUM

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Abstract

The present invention discloses a cement grinding adjuvant and its preparation method. It is made up by using nano CaCO3, nano SiO2, triethanolamine, calcium formate and carboxycarboxylic acid, uniformly mixing them and grinding them to obtain fine powder. After it is added into the cement, it can effectively raise added quantity of industrial waste slag in cement production, and can raise cement strength, and improve cement workability, etc.

Description

technical field [0001] The invention belongs to the technical field of cement additives, in particular to a cement grinding aid and a preparation method thereof. Background technique [0002] In order to achieve the purpose of improving the working efficiency of the tube mill, reducing the production cost and increasing the output, in the cement production process, especially in the cement grinding process, it is usually necessary to add certain grinding aids. Although existing grinding aids are in a wide variety, there are still many problems: 1. cement grinding aids (such as triethanolamine, etc.) with organic matter as the main component, because the cost is too high, manufacturers are difficult to accept. Simultaneously, this type of grinding aid also has the problem of being difficult to evenly mix into cement, which affects product quality. ② cement grinding aids with inorganic substances as the main component (such as Na 2 SO 4 , NaCl, etc.). This type of grinding...

Claims

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Application Information

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IPC IPC(8): C04B22/08C04B24/04C04B103/52
Inventor 曾大勇
Owner 曾大勇