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Casting material for building material

A technology of building materials and casting materials, applied in the field of building materials, can solve the problems of unfavorable light-weight wall panels on-site construction, insufficient stability of performance, excessive self-weight, etc., and achieve the effects of high mechanical strength, wood saving, and wide application

Inactive Publication Date: 2005-05-18
石正
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, some new types of walls have appeared in the building materials industry. These new types of walls are usually realized by casting through molds. In addition, aggregates are added to the mold during casting, such as steel bars, glass fiber cloth, glass Fiber silk, etc., such as: GRC board is widely used, although its mechanical properties can meet the strength requirements, but because the main component of the casting material is cement, the self-weight exceeds the national standard, which is not conducive to making an overall light body wall Board and Site Construction
There are also "non-lightweight partition boards" sold in the market. The raw materials of the casting materials used in this product are unknown. Although the performance indicators such as self-weight meet the national standards, anti-halogen phenomenon often occurs during use, and the performance is not enough. Stable, causing a lot of inconvenience to users

Method used

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  • Casting material for building material
  • Casting material for building material
  • Casting material for building material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Taking the production of light internal partition wall panels as an example to illustrate the formation and use of casting materials:

[0017] (1) Casting material components: (weight percent)

[0018] Proportion at room temperature (about 5-15°C): 35% magnesium oxide, 39.5% magnesium chloride aqueous solution with a percentage concentration of 50-56%, 4.5% chemical mother liquor, which includes: 1.6% urea-formaldehyde resin, ammonium chloride 0.8%, polyvinyl alcohol liquid 1.2%, soda ash 0.6%, bleaching powder 0.3%, 60~80 mesh and sunflower straw powder with water content less than 10% account for 21%.

[0019] (2) Casting material production process:

[0020] a. Prepare the magnesium chloride aqueous solution and the chemical mother liquor respectively according to the above ratio, wherein the magnesium chloride aqueous solution is stirred and left to stand for 24 hours, usually stirred once in about 3 hours.

[0021] b. According to the above ratio, mix sunflower s...

Embodiment 2

[0026] Taking the production of peripheral wall panels as an example to illustrate the formation and use of casting materials:

[0027] Casting material composition: (weight percent)

[0028] Proportion at around 0-10°C: 38% of magnesium oxide, 38.9% of magnesium chloride aqueous solution with a percentage concentration of 50-56%, 5.1% of chemical mother liquor, including: 1.8% of urea-formaldehyde resin, 0.9% of ammonium chloride, 1.3% of polyvinyl alcohol liquid, 1.1% of soda ash, 0.5% of bleaching powder, and 18% of wheat straw powder with 60-80 mesh and water content less than 10%.

[0029] The manufacturing process of the casting material and the manufacturing method of the outer clapboard are the same as in Embodiment 1.

Embodiment 3

[0031] Taking the production of peripheral wall panels as an example to illustrate the formation and use of casting materials

[0032] Casting material composition: (weight percent)

[0033] Proportion at 20-30°C: 32% of magnesium oxide, 32.6% of magnesium chloride aqueous solution with a percentage concentration of 50-56%, 3.4% of chemical mother liquor, including: 1.3% of urea-formaldehyde resin, 0.6% of ammonium chloride %, polyvinyl alcohol liquid 1.0%, soda ash 0.3%, bleaching powder 0.2%, red pine wood sawdust with 60-80 mesh and water content less than 10% accounted for 32%.

[0034] The manufacturing process of the casting material and the manufacturing method of the outer clapboard are the same as in Embodiment 1.

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Abstract

The present invention relates to building material, and is especially casting material suitable for producing light wall board and other building material. The casting material of the present invention consists of plant stalk powder, saw dust, magnesia, magnesium chloride aqua, and chemical mother liquid. The casting material of the present invention has the advantages of light weight, high mechanical performance, high mechanical strength, being waterproof, fireproof and aseismic.

Description

technical field [0001] A casting material for building materials, relating to building materials, in particular a casting material suitable for making new wall materials such as lightweight wall panels or other building materials. Background technique [0002] In recent years, some new types of walls have appeared in the building materials industry. These new types of walls are usually realized by casting through molds. In addition, aggregates are added to the mold during casting, such as steel bars, glass fiber cloth, glass Fiber silk, etc., such as: GRC board is widely used, although its mechanical properties can meet the strength requirements, but because the main component of the casting material is cement, the self-weight exceeds the national standard, which is not conducive to making an overall light body wall board and site construction. There are also "non-lightweight partition boards" sold in the market. The raw materials of the casting materials used in this produ...

Claims

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Application Information

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IPC IPC(8): C04B18/24C04B22/08C04B24/28C04B28/32
CPCY02W30/91
Inventor 石正
Owner 石正
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