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Coal ash autoclaved sintering-free load bearing section bar and preparation method thereof

A technology for fly ash and load-bearing, which is applied in the field of fly ash autoclave-free sintering-free load-bearing materials and preparation, can solve the problems of consuming cement and energy, difficulty in popularization, and occupying a large land area, so as to reduce water consumption and save energy. The effect of land resources and energy saving

Inactive Publication Date: 2011-08-17
时晨光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is mainly mixed with cement and sintered, which needs to consume cement and energy, which increases the cost of brick making
Non-burning and cement-free, some technical performance is unstable
Especially in alpine regions, its key technical indicators such as frost resistance, strength, and compactness are not up to standard, and its promotion is limited by regions
There are also some non-steaming and natural conservation, which occupy a large area of ​​land, take a long time to preserve health, and sometimes the production volume cannot meet the needs of construction
It is difficult to popularize and not suitable for large-scale production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The fly ash autoclaved non-sintering bearing material of the present invention is made of the following raw materials in parts by weight: 45 to 80 parts of fly ash, 5 to 20 parts of slag, 5 to 18 parts of weathered sand, and 3 parts of saline-alkali soil. ~10 parts, 1-8 parts of construction waste, 0.5-2 parts of silicon powder, 0.5-2 parts of calcium powder, 0.5-2 parts of seed crystal and 0.5-2 parts of wood calcium powder.

[0026] The preparation method includes the following steps:

[0027] a. Raw material processing: pulverize fly ash and slag to 0.08~2mm; grind weathered sand, saline-alkali soil, construction waste, silicon powder, calcium powder, seed crystals and wood calcium powder to 0.05~0.08mm;

[0028] b. Stirring of ingredients: mix the powders treated in step a according to the ratio of claim 1, add magnetized water at 40 to 60°C, and stir for 3 to 5 minutes;

[0029] c. Homogeneous one-stage aging: The mixture prepared in step b is subjected to homomixing and a...

Embodiment 2

[0036] A fly ash autoclaved non-sintering load-bearing material of the present invention and its preparation method are composed of 55 to 70 parts of fly ash, 10 to 15 parts of slag, 8 to 13 parts of weathered sand, 5 to 7 parts of saline-alkali soil, and construction waste 3 to 5 parts, 0.9 to 1.5 parts of silicon powder, 0.9 to 1.5 parts of calcium powder, 0.9 to 1.5 parts of seed crystals, and 0.9 to 1.5 parts of wood calcium powder.

[0037] The preparation method includes the following steps:

[0038] a. Raw material processing: Grind fly ash and slag to 0.08-2mm; Grind weathered sand, saline-alkali soil, construction waste, silicon powder, calcium powder, seed crystals and wood calcium powder to 0.05-0.08mm;

[0039] b. Stirring of ingredients: mix the powders processed in step a according to the ratio of claim 1, and add them to 50°C magnetized water and stir for 3 to 5 minutes;

[0040] c. Homogeneous mixing and one-stage aging: The mixture prepared in step b is homomixed and ...

Embodiment 3

[0047] The fly ash autoclaved non-sintering load-bearing material of the present invention and its preparation method are made of the following raw materials in parts by weight: 65 parts of fly ash, 12 parts of slag, 10 parts of weathered sand, and 6 parts of saline-alkaline soil , 4 parts of construction waste, 1.2 parts of silicon powder, 1.2 parts of calcium powder, 1.2 parts of seed crystals, and 1.2 parts of wood calcium powder, and then finished according to the preparation method of claim 2.

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Abstract

The invention relates to an autoclaved and non-sintered coal ash bearing material and a production method thereof. The material is made from the following raw materials in weight proportions: coal ash 45-80 parts, furnace slag 5-20 parts, weathered sand 5-18 parts, saline-alkaline soil 3- 10 parts, building wastes 1-8 parts, silicon powder 0.5-2 parts, calcium powder 0.5-2 parts, seed crystals 0.5-2 parts and calcium lignosulphonate powder 0.5-2 parts. The production method comprises the following steps: raw material treatment, compounding and stirring, first-stage ageing, homogenization, second-stage ageing, roll molding, compression molding and autoclaving setting. The inventive bearing material has the advantages of environmental friendliness, no environmental pollution, low cost and wide application range.

Description

Technical field [0001] The invention relates to a load-bearing timber for construction and a preparation method, in particular to a fly ash autoclaved non-sintering load-bearing timber and a preparation method. Background technique [0002] Traditional "clay sintered bricks" consume a large amount of arable land and coal for firing, resulting in a lot of waste of resources. At the same time, many waste ash residues cause environmental pollution, especially fly ash, which is more serious and disrupts the ecological balance. Heavy saline-alkali land, no grass grows, urgent improvement and management. The use of waste ash and slag saline-alkaline soil to "turn harm into profit and waste into treasure" to make building load-bearing bricks not only conforms to the national policy on wall material innovation, energy saving, and environmental protection, but also saves energy and land resources, in order to ban "clay fired bricks" "The development of the post-construction industry pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B14/06C04B18/08C04B18/16C04B30/00C04B18/14
CPCY02W30/91
Inventor 季原
Owner 时晨光