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Light composite internal partition plate

A kind of interior partition wall and lightweight technology, which is applied in the direction of walls, building components, sustainable waste treatment, etc., can solve the problems of reduced strength of wallboards and high water absorption of products, so as to reduce uneven deformation of the board surface and low density , Inhibit the effect of moisture absorption and return to halogen

Inactive Publication Date: 2008-10-29
天津航达建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Generated Mg(OH) 2 It is loose and has no cementing ability, which not only causes the strength of the wallboard to decrease, but also is the main reason for the frosting of the product
[0009] (2) The more capillary channels in the cement stone cause the product to absorb more water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1, design bulk density 800-900kg / m 3 : The temperature is always 25-29°C; the magnesium oxide index is 83%; the loss on ignition is 4.0-5.0%, and the magnesium chloride is 20kg or MgCl 2 The Baume specific gravity of the solution is designed at 23-24 degrees, and at the same time add 80kg of magnesium oxide, 40kg of fly ash; 20kg of sawdust; when stirring, add an appropriate amount of high-efficiency additives about 500-600mL.

Embodiment 2

[0047] Embodiment 2, design bulk density 900-1000kg / m 3 : The temperature is always 20-25℃; the magnesium oxide index is 83%; the ignition loss is 4.0-5.0%, and the magnesium chloride is 20kg or MgCl 2 The Baume specific gravity of the solution is designed at 22-23.5 degrees, and at the same time add 75kg of magnesium oxide, 45kg of fly ash; 20kg of sawdust; when stirring, add an appropriate amount of high-efficiency additives about 400-500mL.

Embodiment 3

[0048] Embodiment 3, design bulk density 800-950kg / m 3 : The temperature is always 17-21°C; the content of magnesium oxide is 85%; the loss on ignition is 4.0-5.0%, and magnesium chloride 20kg or MgCl 2 The Baume specific gravity of the solution is designed at 24-25 degrees, and at the same time add 85kg of magnesium oxide, 35kg of fly ash; 20kg of sawdust; when stirring, add an appropriate amount of high-efficiency additives about 700-800mL.

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Abstract

The invention belongs to the building material field; in particular to the field of wall body board. A light composite inner partition board of the invention adopts light burning magnesia and magnesium chloride as main gelled materials, wherein, the magnesia accounts for 50 percent of the total weight of the board, and the purity of the magnesia is 83 to 86 percent; the magnesium chloride accounts for 15 percent of the total weight of the board, or the Baume proportion of magnesium chloride solution is modulated at 23 to 24 degrees; the filler of the invention comprises fly ash and sawdust, wherein, the fly ash accounts for 25 to 30 percent of the total weight of the board and the sawdust accounts for 5 to 10 percent of the total weight of the board. The light composite inner partition board of the invention can be used as a partition wall, a baffle, etc. of a light steel frame structure and a reinforced concrete frame structure. The light composite inner partition board has the advantages of low density, sound and heat insulation, fire protection and good installation and processing performance such as sawability, nailability, etc.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a lightweight composite interior partition wall board. Background technique [0002] Magnesium chloride cement is made of lightly burned magnesia and MgCl with a certain degree of Baume 2 Air-hardening cementitious material that develops strength after the solution is stirred. Research at home and abroad has confirmed that at room temperature, the composition of its hydration product is: 5Mg(OH) 2 MgCl 2 ·8H 2 O (abbreviated as 5·1·8 phase) and 3Mg(OH) 2 · MgCl 2 ·8H 2 O (referred to as 3.1.8 phase). In addition, there are unreacted MgO, MgCl 2 ·6H 2 O, and the Mg(OH) produced by the reaction 2 Wait. Among them, the 5·1·8 phase is the main strength phase of magnesium chloride cement stone. In the microstructure, both the 5·1·8 phase and the 3·1·8 phase are needle-like crystal structures. However, depending on the growth space and the influence of external factors, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B9/11C04B9/02C04B14/02C04B16/02C04B22/14C04B22/16C04B24/20E04B2/56C04B103/30
CPCC04B28/32C04B2111/52C04B2111/40Y02W30/91C04B18/08C04B18/26
Inventor 仲晓梅李龙顺王沛李雪峰孔祥坤庄茜
Owner 天津航达建材有限公司
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