Light decorative plate material with high doping quantity of fly ash

A decorative board, fly ash technology, applied in building materials, sustainable waste treatment, solid waste management, etc., to achieve optimal performance, good social and economic benefits, and increased flexural strength

Active Publication Date: 2010-06-16
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of light-weight decorative board with high fly ash content, which improves the picking process of conventional non-asbestos cem

Method used

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  • Light decorative plate material with high doping quantity of fly ash
  • Light decorative plate material with high doping quantity of fly ash
  • Light decorative plate material with high doping quantity of fly ash

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The following method is used to prepare an economical lightweight decorative board with high fly ash content, and the specific method includes the following steps:

[0029] (1) Weigh 6.75kg of vinylon fiber, 2.25kg of pulp, and 10.1kg of fibrous sepiolite, pour them into the loosening machine for 10 minutes, put them into the beater, and then add 42.5# ordinary Portland cement 76.5 kg, 1.3kg of aluminum hydroxide, 90kg of fly ash, 11.3kg of silica fume, 25kg of perlite fine powder with a particle size less than 0.15mm, 1.8kg of 10mm chopped glass fiber and water, and stir for 15 minutes to form a slurry. The concentration is controlled at 8-15wt% (percentage of dry material / (dry material+water)).

[0030] (2) The slurry is added into the net box for extraction, and three vacuum pumps are used for dehydration; the slurry is formed into a slab by the extraction forming machine.

[0031] During the copying operation, an anionic polyacrylamide solution with a molecular wei...

Embodiment 2

[0039] The following method is used to prepare an economical lightweight decorative board with high fly ash content, and the specific method includes the following steps:

[0040] (1) Weigh 6.75kg of vinylon fiber, 2.25kg of pulp, and 10.1kg of fibrous sepiolite, pour them into the loosening machine for 10 minutes, put them into the beater, and then add 42.5# ordinary Portland cement 72.9 kg, 1.3kg of aluminum hydroxide, 90kg of fly ash, 11.3kg of silica fume, 28.6kg of perlite fine powder with a particle size less than 0.15mm, 1.8kg of 10mm chopped glass fiber and water, and stirred for 15 minutes to form a slurry. The slurry concentration is controlled at 8-15 wt %; an anionic polyacrylamide solution (diluted to 0.2%) with a molecular weight of 8 million is added to the return water at 0.005-0.01% of the cement weight.

[0041] (2) Three vacuum pumps are used for dehydration during the copying process.

[0042] (3) The slurry is formed into blanks by taking the molding machin...

Embodiment 3

[0049] Using the same ratio of raw materials as in Example 1, wherein Portland cement is marked 52.5#, the same method as in Example 1 is used to prepare and detect a light board with high fly ash content without spraying paint. The test results are shown in Table 3.

[0050] Table 3 shows the physical and mechanical properties of the lightweight board with a fly ash content of 40%.

[0051] project

[0052] project

[0053] The test results show that increasing the grade of cement will increase the flexural strength and impact strength of the light board.

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Abstract

The invention relates to a decorative plate material with high doping quantity of fly ash and a production method thereof, which belong to the field of construction materials. The decorative plate material comprises cement, fly ash, polyvinylformal fibre, perlite, meerschaum, pulp, micro silicon powder, glass fibre and polyacrylamide. A right amount of micro silicon powder is added into a formula, the floating of a light material in the wet process can be reduced, the use quantity of the fly ash in the decorative plate material is also enhanced greatly, and the highest doping quantity can reach 40%. The wet process of the conventional asbestos-free cement flat plate is properly improved, and the maintained decorative plate material has the advantages of economy, applicability, flame retardant, light weight, small contraction, environmental protection, heat insulation, moisture prevention and good durability after being sprayed with paint.

Description

technical field [0001] The invention belongs to the field of building materials, and mainly relates to the reuse of industrial waste materials, in particular to an economical light-weight decorative plate with high fly ash content and a production method thereof. Background technique [0002] China's rapid economic development in recent years has inevitably produced a large amount of industrial waste, and the resulting environmental hazards are not optimistic. How to solve the problem of waste resource reuse is also a major issue during my country's "Eleventh Five-Year Plan". The treatment of industrial waste such as fly ash discharged from coal-fired power plants is becoming increasingly severe. The comprehensive utilization of fly ash, turning waste into treasure and harm into profit, has become an important technical and economic policy in my country's economic construction. It is an important means to solve the contradiction between the environmental pollution of my count...

Claims

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Application Information

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IPC IPC(8): E04C2/26C04B28/00C04B28/04C04B18/08
CPCC04B2111/28C04B2111/27C04B2111/00017C04B28/02Y02W30/91C04B14/042C04B14/18C04B14/303C04B14/42C04B16/0641C04B18/08C04B18/146C04B18/241C04B24/2652
Inventor 王志新刁桂芝
Owner CHINA BUILDING MATERIALS ACAD
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