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Magnesite modifying agent

A magnesite modifier and the technology of the modifier, applied in the field of magnesite cementitious materials, can solve the problem that the effect of the modifier is not particularly ideal, and achieve the effects of improving product strength and product quality

Active Publication Date: 2013-03-27
浙江杭海新城控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the industry generally solves the above-mentioned disadvantages by adding modifiers, but the existing modifiers are not particularly effective.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In the present embodiment, this magnesite modifier is made up of following composition:

[0023]

[0024]

[0025] The above ingredients are weighed and then stirred and mixed to make a powder.

[0026] Add the prepared improver to magnesite cement. After the magnesite cement is solidified, a hydrophobic film will be formed on the inner surface of the product, the capillary pores inside and the inner wall of the cavity, preventing the intrusion of water and reducing the impact of water on the product. erosion. At the same time, the magnesite modifier contains a considerable amount of surface active ingredients, which can fully contact and react magnesium oxide and magnesium chloride in a short period of time. The excess magnesium chloride is shielded, making it lose the opportunity to absorb moisture in the air medium, making up for the large Under the production volume, the mixing time of the slurry is short, which easily leads to the defect of insufficient mate...

Embodiment 2

[0028] In the present embodiment, this magnesite modifier is made up of following composition:

[0029]

[0030]

[0031] The above ingredients are weighed and then stirred and mixed to make a powder.

[0032] Add the prepared improver to magnesite cement. After the magnesite cement is solidified, a hydrophobic film will be formed on the inner surface of the product, the capillary pores inside and the inner wall of the cavity, preventing the intrusion of water and reducing the impact of water on the product. erosion. At the same time, the magnesite modifier contains a considerable amount of surface active ingredients, which can fully contact and react magnesium oxide and magnesium chloride in a short period of time. The excess magnesium chloride is shielded, making it lose the opportunity to absorb moisture in the air medium, making up for the large Under the production volume, the mixing time of the slurry is short, which easily leads to the defect of insufficient mate...

Embodiment 3

[0034] In the present embodiment, this magnesite modifier is made up of following composition:

[0035]

[0036]

[0037] The above ingredients are weighed and then stirred and mixed to make a powder.

[0038] Add the prepared improver to magnesite cement. After the magnesite cement is solidified, a hydrophobic film will be formed on the inner surface of the product, the capillary pores inside and the inner wall of the cavity, preventing the intrusion of water and reducing the impact of water on the product. erosion. At the same time, the magnesite modifier contains a considerable amount of surface active ingredients, which can fully contact and react magnesium oxide and magnesium chloride in a short period of time. The excess magnesium chloride is shielded, making it lose the opportunity to absorb moisture in the air medium, making up for the large Under the production volume, the mixing time of the slurry is short, which easily leads to the defect of insufficient mate...

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Abstract

The invention provides a magnesite modifying agent, and belongs to the technical field of a magnesite cementing material, aiming at solving the problem that the existing magnesite cementing material product is serious in moisture absorption and halogenation. The magnesite modifying agent comprises the components based on parts by weight: 2-4.5 parts of barium silicate, 1.5-3.5 parts of sodium silicate, 10-25 parts of high polymer waterproof rubber powder, 250-400 parts of building plaster, 110-140 parts of bentonite, 60-100 parts of mica powder, 2-3.8 parts of lithium silicate, 2-8 parts of polyvinyl alcohol, 2.5-8 parts of a flocculating agent, 150-300 parts of talcum powder and 200-300 parts of volcanic ash. Compared with the prior art, the magnesite modifying agent solves the problems that the existing magnesite composite material product is easily deformed and easily gets damp, and improves the product strength, thus improving the product quality.

Description

technical field [0001] The invention belongs to the technical field of magnesite gelling materials, and relates to a magnesite modifier. Background technique [0002] Magnesite cementitious material, also known as magnesite cement, is an air-hardening cementitious material. When using this material to manufacture products, it has the characteristics of no need for moisture maintenance, fast strength growth, high flexural and compressive strength, and weak Alkaline, low corrosion, high elasticity, good toughness, light weight, good adhesion to organic and inorganic materials or fibers, etc., widely used in construction, decoration, urban construction, agriculture and other fields. [0003] However, this material product will have the phenomenon that the surface is easy to absorb moisture and return to halogen. After the magnesite cement is fully cured, there will still be supercritical free magnesium chloride or excess alkali metal impurity ions inside the magnesite product. ...

Claims

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Application Information

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IPC IPC(8): C04B24/26C04B28/32
Inventor 张春高王建民朱翻身
Owner 浙江杭海新城控股集团有限公司
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