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Precasting type glass fibre reinforced gypsum board and method of manufacture

A technology of glass fiber and manufacturing method, which is applied in the field of precast glass fiber reinforced gypsum board and its manufacturing, can solve the problems of consuming limited environmental protection resources, high production and maintenance costs, and impact on construction progress, so as to shorten the construction period and shorten the construction period. Convenience and good processing performance

Inactive Publication Date: 2008-08-06
广州市建筑集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as the current domestic decorative materials are concerned, due to the insufficient density of traditional gypsum products, there are problems such as low strength and rigidity, unstable shape, and easy deformation due to external force or humidity change.
For places with high requirements for acoustics and decorative effects, traditional crafts use logs, which have high production and maintenance costs, difficult shaping, poor fire resistance, and consume a lot of limited environmental protection resources.
[0003] At the same time, the existing gypsum board production method has a long production cycle, and the construction progress is easily affected, which fails to meet the market demand for both efficiency and quality

Method used

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  • Precasting type glass fibre reinforced gypsum board and method of manufacture
  • Precasting type glass fibre reinforced gypsum board and method of manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0040] An embodiment of the manufacturing method of precast glass fiber reinforced gypsum board of the present invention, as shown in Figure 2 and Figure 3, according to the needs of production design, make the mold 10 and embedded parts 20, 22: according to the design drawings, use logs and The plywood is made into the shape specified by the design according to the ratio of 1:1 to form a "positive mold". Then use silica gel or fiberglass to replicate the positive mold to form a "counter-mold", which becomes a mold for making pre-cast glass fiber reinforced gypsum board products.

[0041] Calculate the batching ratio of gypsum powder, the weight ratio of gypsum powder and water is 100:33, mix the slurry, the first layer of gypsum slurry 31 on the mold, the thickness of the gypsum slurry is controlled at 3 ~ 5mm (that is, pre-cast glass fiber strengthen the installation front after demoulding of the gypsum board), then spread the glass fiber cloth 41, and then apply and scrape ...

Embodiment 3

[0051] Gypsum powder technical parameters

[0052] pile up

density

(Kg / m 3 )

consistency

(mm)

Ointment

Compare

powder

Fineness

(mesh)

clotting time

Flexural strength

Expansion rate

initial setting

final set

wet resistance

(2h)

dry resistance

900

198

1∶0.33

300

15′30″

30′00″

7-8MPa

16-20MPa

0.0121％

[0053] Note: Chemical composition of gypsum powder (α-type high-strength gypsum): CaSO 4 .1 / 2H 2 O content > 96%, CaCO 3 Content2 Content <2%.

[0054] Specifications of precast glass fiber reinforced gypsum board products

[0055] Test items

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Abstract

A pre-casting glass fiber reinforced gypsum plate comprises a gypsum layer and glass fiber cloth layer, wherein the gypsum layer has more one layer than the glass fiber, and an embedded part is arranged in the gypsum plate. A decorative layer is arranged on the surface of the gypsum layer, which is a veneer layer, a gold foil layer, a luster layer or a paper layer. The pre-casting glass fiber reinforced gypsum plate of the invention has strong strength, impact resistance, excellent flexibility, large density, fire-proof property and excellent moist property, which is a green environment-friendly material. The invention further provides a production process for pre-casting glass fiber reinforced gypsum plate.

Description

technical field [0001] The invention relates to a building and decoration material, in particular to a precast glass fiber reinforced gypsum board and a manufacturing method thereof. Background technique [0002] With the rapid development of China's economy and construction, the demand for interior decoration has skyrocketed. As far as the current domestic decorative materials are concerned, due to the insufficient density of traditional gypsum products, there are problems such as low strength and rigidity, unstable shape, and easy deformation when external force is applied or humidity changes. For some places with high requirements on acoustics and decorative effects, traditional crafts use logs, which have high production and maintenance costs, difficult shaping, poor fire resistance, and consume a lot of limited environmental protection resources. [0003] At the same time, the existing gypsum board production method has a long production cycle, and the construction pro...

Claims

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Application Information

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IPC IPC(8): E04F13/077B32B37/15B32B13/02E04F13/24
Inventor 崔伟锋刘东徐翠东谢伟锋
Owner 广州市建筑集团有限公司
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