High-intensity magnesite cement board and preparation method thereof

A cement board and high-strength technology, applied in the field of building materials, can solve the problems of people's living hazards, easy peeling of the wall, and no resistance to freezing, and achieve the effects of good compactness, simple construction, and good water resistance

Inactive Publication Date: 2012-12-26
TIANJIN TIANYI DINGSHENG PANEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many boards used in the construction market, such as asbestos boards, cement boards, large zinc boards, and multi-layer boards. Skin...

Method used

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  • High-intensity magnesite cement board and preparation method thereof
  • High-intensity magnesite cement board and preparation method thereof
  • High-intensity magnesite cement board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of magnesite high-strength cement board, the steps are:

[0032] (1) Take 23 kg of rice husk, 26 kg of bluestone powder, and 10 kg of saw foam, start the machine and stir for 5 minutes, then add 110 kg of magnesium chloride modified water, the glass magnesium specific gravity of the modified water is 27 degrees; 100 kg of magnesium powder, after 10 minutes, add 1.5 kg of phosphoric acid, 0.3 kg of defoamer, and form a mixed slurry after 5 minutes.

[0033] ⑵Adjust the thickness of the molding machine, such as six layers of glass fiber cloth, then put it into the mold, add a layer of glass fiber cloth into the mold, and fill the glass fiber cloth with mixed slurry, the thickness of the mixed slurry is 0.2cm, Vibrate the rolling plate to fully mix the glass fiber cloth with the mixed slurry; then lay the second, third, fourth, and fifth layers, and add mixed slurry to the glass fiber cloth until the sixth layer is covered Fiberglass cloth, when opera...

Embodiment 2

[0037] A preparation method of magnesite high-strength cement board, the steps are:

[0038] (1) Take 25 kg of rice husk, 28 kg of bluestone powder, and 5 kg of fly ash, start the machine and stir for 5 minutes, then add magnesium sulfate modified water, the glass magnesium specific gravity of the modified water is 29 degrees; 100 kg of magnesium powder, after 10 minutes, add 1.5 kg of phosphoric acid, 0.3 kg of defoamer, and form a mixed slurry after 5 minutes.

[0039] ⑵Adjust the thickness of the molding machine, such as four layers of glass fiber cloth, and then put it into the mold, add a layer of glass fiber cloth into the mold, and add mixed slurry on the glass fiber cloth, the thickness of the mixed slurry is 0.2cm, Vibrate the rolling plate to fully mix the glass fiber cloth with the mixed slurry; then lay the second and third layers, and fill the mixed slurry on the glass fiber cloth respectively until the fourth layer of glass fiber cloth is covered. , keep vibrati...

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PUM

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Abstract

The invention relates to a high-intensity magnesite cement board and a preparation method thereof. The constituent raw materials are rice hull, an additive, magnesite powder, magnesium chloride modified water, phosphoric acid, a defoaming agent and glass fiber cloth. The preparation method comprises the following steps of: (1) starting a machine and stirring the rice hull and the additive for 5 minutes according to a weight ratio, adding the magnesium chloride modified water, adding the magnesite powder while stirring, after 10 minutes, adding the phosphoric acid and the defoaming agent, and after 5 minutes, forming mixed slurry; (2) adding a layer of the glass fiber cloth in the mould, injecting the mixed slurry on the glass fiber cloth, and vibrating a rolling plate; (3) placing the mould on a steel frame and feeding to a curing chamber; and (4) after leaving the frame and demolding, and opening a mortise and tenon joint of a mortise by utilizing a machine so as to obtain a finished product. The high-intensity magnesite cement board, provided by the invention, has the advantages of scientific composition and artful compatibility of raw materials, good compaction, high intensity and good water tolerance of the formed board, stable neutralization of oxygen ions, and safety use, after detection and identification of a national authority compartment, all indexes reach primary standard of nation, and the high-intensity magnesite cement board is suitable for high-speed rail construction, flyovers, stadiums, airport baffles of a waiting room, an inner wallboard, an outer wallboard and a floor substrate.

Description

technical field [0001] The invention belongs to the field of building materials and relates to a cement board, in particular to a magnesite high-strength cement board and a preparation method thereof. Background technique [0002] At present, there are many boards used in the construction market, such as asbestos boards, cement boards, large zinc boards, and multi-layer boards. There are many problems such as skin and short life; there are also some plates containing asbestos and other harmful substances to the human body, which are harmful to people's daily life. Therefore, it is very necessary to invent a building board that overcomes the above-mentioned defects and is environmentally friendly and has a building decoration function. [0003] Through searching, the following three published patent documents were found:. [0004] 1. A formula and process of magnesite board (CN1244511), the constituent materials of which are magnesium oxide, chlorine solution, saw foam, gla...

Claims

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Application Information

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IPC IPC(8): C04B28/32B28B1/087B28B1/52
Inventor 刘玉
Owner TIANJIN TIANYI DINGSHENG PANEL CO LTD
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