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Cement grinding aid and cement using cement grinding aid

A technology of cement grinding aid and heat absorbing agent, applied in the field of cement admixtures, can solve problems such as low cement strength, and achieve the effects of improving cement strength and inhibiting volume shrinkage

Active Publication Date: 2021-05-28
唐山冀东水泥外加剂有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that cement grinding aids can improve the grinding efficiency of cement particles, reduce the cement particle size, increase the specific surface area of ​​cement particles, and promote the occurrence of hydration reactions. There are more hydrogen in the hydration products. Calcium oxide crystallizes, resulting in lower cement strength

Method used

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  • Cement grinding aid and cement using cement grinding aid
  • Cement grinding aid and cement using cement grinding aid
  • Cement grinding aid and cement using cement grinding aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A cement grinding aid is prepared by stirring and mixing the following raw materials in parts by mass:

[0037] Triisopropanolamine 15kg,

[0038] Ethylene glycol 13kg,

[0039] Gluconic acid 12kg,

[0040] Vermiculite 8kg, the particle size of vermiculite is 15 microns,

[0041] Nano magnesium oxide 10kg, the particle diameter of nano magnesium oxide is 12 nanometers,

[0042] Endothermic agent 8kg, endothermic agent is ammonium chloride.

[0043] A cement using a cement grinding aid, which is prepared by including the above cement grinding aid, and the preparation steps are as follows, S1: Put the above cement grinding aid and cement raw materials in a ball mill at a mass ratio of 1:250 for grinding , and the grinding time is 30min to obtain cement.

[0044] The cement raw material is obtained by mixing cement clinker, gypsum, limestone and slag into powder according to the mass ratio of 10:1:1:4.

[0045] Carry out a kind of cement production that uses cement g...

Embodiment 6

[0060] A cement grinding aid, based on the basis of Example 1, the difference is that no vermiculite is added to the grinding aid, and the rest of the operating steps and parameters are the same as in Example 1.

Embodiment 7

[0062] A cement grinding aid, based on Example 1, the difference is that the particle size of the vermiculite is 10 microns, and the rest of the operating steps and parameters are the same as in Example 1.

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Abstract

The invention relates to the field of cement admixtures, and particularly discloses a cement grinding aid and cement using the cement grinding aid, and the cement grinding aid is prepared by stirring and mixing the following raw materials in parts by mass: 10-20 parts of triisopropanolamine, 10-15 parts of ethylene glycol and 10-15 parts of gluconic acid. The preparation method of the cement grinding aid comprises the following steps: putting the cement grinding aid and cement raw materials into a ball mill according to the mass ratio of 1: 250, and grinding for 30 minutes to obtain cement, the cement grinding aid can be used for cement production, and has the advantage of improving the strength of cement.

Description

technical field [0001] The application relates to the field of cement admixtures, more specifically, it relates to a cement grinding aid and cement using the cement grinding aid. Background technique [0002] Cement grinding aid is an important additive in cement, which needs to be added to cement clinker in a certain proportion during the production process. [0003] Cement grinding aids are composed of one or several surface active substances. The application effect of most cement grinding aids shows that cement grinding aids can reduce cement particle size, increase specific surface area, improve some physical and chemical properties of cement, and reduce dust particles. Grinding power consumption and so on. [0004] In view of the above-mentioned related technologies, the inventor believes that cement grinding aids can improve the grinding efficiency of cement particles, reduce the cement particle size, increase the specific surface area of ​​cement particles, and promo...

Claims

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Application Information

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IPC IPC(8): C04B24/12C04B7/21C04B103/52
CPCC04B40/0039C04B7/21C04B2103/52C04B24/122C04B24/026C04B24/10C04B14/202C04B22/066C04B22/124Y02P40/10
Inventor 张露瑶苏晓强郑立曼郭自刚张振生王洋张伟利王涛边淑芳肖见祺毛泽南唐哲高峰刘禹杉任建波张业明
Owner 唐山冀东水泥外加剂有限责任公司
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