Light dolomite magnesium cement partition plate and manufacturing method thereof

A manufacturing method, magnesium cement technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of difficult promotion and high cost of raw materials for the production of lightweight magnesite partition boards

Inactive Publication Date: 2011-05-04
QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Lightweight magnesite partition boards are widely used in the field of building materials due to their good properties such as fire prevention, light weight and high strength, anti-corrosion, and easy construction. At present, the main raw material for the production of lightweight magnesite partition boards Soil) The production areas are mainly concentrated in Liaoning, my country. Due to the limitation of resources and regions, the cost of raw materials for the production of lightweight magnesite partition boards is relatively high, and it is not easy to promote

Method used

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  • Light dolomite magnesium cement partition plate and manufacturing method thereof
  • Light dolomite magnesium cement partition plate and manufacturing method thereof

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Experimental program
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Embodiment 1

[0005] Embodiment 1. A kind of lightweight dolomite magnesium cement partition board and manufacture method thereof, get caustic dolomite powder 10kg, magnesium chloride 1.2kg, sawdust 1kg, fly ash 0.5kg, expanded perlite 0.5kg, water 4.4kg will magnesium chloride Prepare a solution with water, stir the solution and other materials evenly in a mixer to make a slurry, lay a second layer of glass fiber mesh in the partition wall mold (1800×1200×20mm), and lay a non-woven fabric on the back , inject the slurry, mold and solidify at 10°C for 18 hours, then demould, and after demoulding, cure for 28 days at 10°C and the relative air humidity is less than 80%.

[0006] The main technical indicators of the finished product are as follows:

[0007] Air dry density: 26.0kg / m 2

[0008] Dry shrinkage of panel: 0.06%

[0009] Bending load: 2700N

[0010] Shock resistance: No damage such as cracking after impacting for 3 times

[0011] Main section thermal resistance: 1.38(m 2 .k) / w...

Embodiment 2

[0015] Embodiment 2: a kind of lightweight dolomite magnesium cement partition board and manufacture method thereof, get caustic dolomite powder 10kg, magnesium chloride 4kg, straw 6kg, talcum powder 3kg, expanded vermiculite 3kg, water 12kg, blowing agent 0.3kg, Prepare magnesium chloride and water into a solution, stir the solution and other materials evenly in a mixer to make a slurry, lay a second layer of glass fiber mesh in the partition wall mold (1800×1200×10mm), and lay a non-woven fabric on the back. Spun fabric, injected with slurry, molded and cured at 40°C for 24 hours, demoulded, and cured for 28 days at 40°C, relative air humidity less than 80% after demoulding, the foamed partition wall panel was finished.

[0016] The main technical indicators of the finished product are as follows:

[0017] Air dry density: 18.0kg / m 2

[0018] Dry shrinkage of panel: 0.042%

[0019] Bending load: 1600N

[0020] Shock resistance: No damage such as cracking after impacting ...

Embodiment 3

[0025] Embodiment 3: a kind of lightweight dolomite magnesium cement partition board and its manufacture method, get caustic dolomite powder 10kg, magnesium chloride 3kg, sawdust and straw (shell) mixture 3kg, slag powder 1.5kg, polystyrene 2kg, water 8kg ,, magnesium chloride and water are prepared into a solution, and the solution and other materials are stirred evenly in a mixer to make a slurry, and a polystyrene board with a thickness of 50mm is fixed in the partition wall mold (1800×1200×80mm), Lay the second layer of glass fiber mesh cloth, lay non-woven fabric on the back, inject the slurry, mold and cure at 20°C for 20 hours, then demould, and then maintain at 25°C and relative air humidity less than 80% after demoulding After 28 days, it will be a sandwich-type partition board.

[0026] Its main technical indicators are as follows:

[0027] Air dry density: 21.0kg / m 2

[0028] Dry shrinkage of panel: 0.046%

[0029] Bending load: 1700N

[0030] Shock resistance:...

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Abstract

The invention relates to a light dolomite magnesium cement partition plate and a manufacturing method thereof, and belongs to the field of chemical building materials. The light dolomite magnesium cement partition plate consists of caustic dolomite powder, magnesium chloride, light filler, inert filler, water and a heat insulating material in a mass ratio of 1.00:(0.12-0.40):(0.10-0.60):(0.05-0.30):(0.44-1.20):(0.05-0.30); and an appropriate amount of reinforcing material is added into the materials; and the manufacturing method of the light dolomite magnesium cement partition plate comprises the following steps of: stirring and mixing slurry, molding and solidifying, and curing. The light dolomite magnesium cement partition plate for building, which is produced by the manufacturing method, has the advantages of fire protection, heat preservation, high strength and water tolerance, anticorrosion, vibration resistance, sound insulation, easiness in construction, environmental-friendliness, energy conservation, simple production process and low consumption, and the like, is a generation-substituting product which can replace various plates, such as color steel light partition plates, portland cement partition plates and the like, belongs to environmental-friendly building materials and can be widely applied to a building industry.

Description

1. Technical field [0001] The invention relates to a lightweight dolomite magnesium cement partition board and a manufacturing method thereof, belonging to the field of chemical building materials. 2. Background technology [0002] Lightweight magnesite partition boards are widely used in the field of building materials due to their good properties such as fire prevention, light weight and high strength, anti-corrosion, and easy construction. At present, the main raw material for the production of lightweight magnesite partition boards Soil) production areas are mainly concentrated in Liaoning, my country. Due to the geographical limitations of resources, the cost of raw materials for the production of lightweight magnesite partition boards is relatively high, and it is not easy to promote. 3. Contents of the invention [0003] The present invention is that dolomite ore (it is the ore that calcium carbonate and magnesium carbonate double salt are main components, molecular ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/30
CPCC04B28/32Y02W30/91C04B14/042C04B14/185C04B14/204C04B14/28C04B14/42C04B16/04C04B18/08C04B18/141C04B18/24C04B18/26C04B20/0048C04B40/02C04B2103/63
Inventor 肖学英王永晏张全有常成功王继东王明英韩继龙王世栋
Owner QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
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