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Foamed glass ceramic material for wall and its production process

A technology for microcrystalline foam glass and wall materials, which is applied in the directions of building materials, ceramic material production, clay products, etc., can solve the problems of high price and other problems, and achieve the effects of excellent performance, excellent mechanical performance and good performance.

Inactive Publication Date: 2003-01-08
NANJING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When made into a thin sheet with a smooth surface, it is mainly used as a decorative veneer material, which is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: The main raw material is a mixture of glass powder and fly ash accounting for more than 90%wt of the total weight. The weight percentage of each oxide in its chemical composition is SiO 2 66.24、TiO 2 0.18, Al 2 o 3 6.50 Fe 2 o 3 0.65, FeO 0.12, MnO 0.01, MgO 3.10, CaO 9.03, Na 2 O 9.36, K 2 O 2.81, P 2 o 50.10, loss on ignition 1.30, together with soda ash Na which accounts for less than 10%wt of the total raw material weight 2 CO 3 , calcite and wollastonite. The particle size of the raw material components is as described in the preceding paragraph of the specification. After being uniformly mixed mechanically, it is pressed into shape under the condition of water content of 6-8%wt. After drying, it is fired in a kiln. The heating rate in the kiln is 1-1.5°C / min. Cooling down to 915-925°C, the cooling rate is the same as the heating rate, and natural cooling after reaching 400°C, all of which are automatically carried out in the kiln at...

Embodiment 2

[0036] Embodiment 2: a mixture of glass powder and fly ash accounting for more than 90%wt of the total weight. The weight percentages of each oxide in its chemical composition are: SiO 2 65.35, TiO 2 0.24, Al 2 o 3 7.41 Fe 2 o 3 0.62, FeO 0.28, MnO 0.02, MgO 3.0, CaO 9.28, Na 2 O 9.14, K 2 O 2.60, P 2 o 5 0.1, loss on ignition 1.4. Matched with soda ash Na which accounts for ≤10%wt of the total raw material weight 2 CO 3 , calcite and wollastonite. The particle size of the raw material is the same as that described in the preceding paragraph of the description. After being uniformly mixed mechanically, it is pressed into shape as in Example 1, fired in a kiln, cooled and cut into finished products.

[0037] The main performance of the product of this embodiment is five groups of 15 samples with an average volume density of 750kg / M 3 , The average cubic compressive strength is 10.7Mpa.

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Abstract

The present invention discloses a nucleated foamed glass wall body material, which is characterized byt aht its composition contains glass powder whose grain size d(0.9) is less than 130 meshes, flyash whose grain size d(0.9) is les than 120 meshes and non-metallic mineral powder whose grain size d(0.9) is less than 230 meshes. Its preparation method includes: grinding glass powder, flyash and non-metallic mineral powder, adding water and mixing them, under the condition of containing water content pressing and forming, drying and kilning, cutting blank and forming to obtain the invented product. It is suitable for industrial production.

Description

1. Technical field [0001] The invention relates to a wall material, in particular to a glass-ceramic foam glass wall material between glass-ceramics and foam glass in terms of structure and performance and a preparation method thereof. 2. Background technology [0002] The research, development and application of various glass-ceramics in the world have a history of at least 50 years. The domestic research has begun since the 1980s, and some products have come out. High density of glass-ceramics (≥2700kg / m 3 ), corrosion-resistant, wear-resistant, non-conductive, non-magnetic, and high mechanical strength, it is widely used in non-construction industries. When made into a thin sheet with a smooth surface, it is mainly used as a decorative veneer material, which is expensive. [0003] Foam glass has been developed abroad since the 1930s, and it has been introduced and developed domestically since the late 1980s. It uses finely ground glass powder as the main raw material, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/076C03C6/00C03C11/00C04B33/13C04B33/135E04C2/02
CPCC04B2235/36C03C11/00C03C3/087C03C11/007C03C3/097C04B33/1352C04B33/13Y02P40/60
Inventor 陈克荣曾家湖陈小明
Owner NANJING UNIV
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