Construction waste sintering brick and production method thereof

A technology for construction waste and sintered bricks, applied in construction, building components, building structures, etc., can solve the problems of inability to achieve industrialization, easy peeling of sintered bricks, difficult sintering, etc. wide effect

Active Publication Date: 2010-03-10
上海鑫晶山淤泥研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Due to the high cement content in construction waste, it is easy to peel off when making sintered bricks. In addition, due to the small amount of organic matter and small pores in construction waste, sintering is difficult and cannot meet the requirements of industrialization.

Method used

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  • Construction waste sintering brick and production method thereof
  • Construction waste sintering brick and production method thereof
  • Construction waste sintering brick and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Raw materials include the following components and weight percentages:

[0045] River silt with a moisture content of 20% 25%

[0046] Construction waste powder after removal of impurities and aging treatment (powder particle size 1-3mm) 35%

[0047] Fly Ash 17%

[0048]Coal gangue (powder particle size 1-3mm) 11%

[0049] Adhesive ("Wall" brand inferior clay reinforcement) 3%

[0050] Kiln dust 9%

[0051] Obtaining construction waste powder after removal of impurities and aging treatment:

[0052] Crush the construction waste to a particle size of 0.5-2cm, remove iron with a magnet, then grind the construction waste after iron removal, and screen out powder with a particle size of 1-3mm. Adding water to pile up the construction waste powder from which impurities have been removed, controlling the moisture content to 16±3%, and obtaining it after aging for 7 days.

[0053] Preparation method of construction waste sintered bricks:

[0054] 1) Mix fly ash and coal...

Embodiment 2

[0059] Raw materials include the following components and weight percentages:

[0060] River silt with a moisture content of 14% 27%

[0061] Construction waste powder after removal of impurities and aging treatment (powder particle size 1-3mm) 39%

[0062] Fly Ash 16%

[0063] Coal gangue (powder particle size 1-3mm) 15%

[0064] Binder 2.5%

[0065] Kiln dust 0.5%

[0066] Obtaining construction waste powder after removal of impurities and aging treatment:

[0067] Crush the construction waste to a particle size of 0.5-2cm, remove the iron with a magnet, then crush, grind and roll the construction waste after iron removal, and screen out the powder with a particle size of 1-3mm. Pile the construction waste powder with impurities removed, control the water content to 16±3%, and obtain it after aging for 14 days.

[0068] Preparation method of construction waste sintered bricks:

[0069] 3) Mixing fly ash, coal gangue, impurity-removed and aged construction waste, river...

Embodiment 3

[0075] Raw materials include the following components and weight percentages:

[0076] River silt with a moisture content of 18% 24%

[0077] Construction waste powder after removal of impurities and aging treatment (powder particle size 1-3mm) 37%

[0078] Coal gangue (powder particle size 1-3mm) 33%

[0079] Binder 1.5%

[0080] Silt dry powder 4.5%

[0081] Obtaining construction waste powder after removal of impurities and aging treatment:

[0082] Crush the construction waste to a particle size of 0.5-2cm, remove iron with a magnet, then grind the construction waste after iron removal, and screen out powder with a particle size of 1-3mm. The construction waste powder from which impurities have been removed is piled up with water, the water content is controlled to be 16±3%, and it is obtained after aging for 10 days.

[0083] Preparation method of construction waste sintered bricks:

[0084] 5) According to the aforementioned ratio, coal gangue is mixed with constru...

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Abstract

The invention relates to a construction waste sintering brick and a production method thereof. The construction waste sintering brick comprises sintering raw materials of 24-30 percent of sludge and 35-45 percent of construction waste, 25.5-33 percent of one or two of coal ash or coal refuses and 1-3 percent of binding agent. The construction waste sintering brick has wide raw material sources, enables the construction waste to be recycled, saves the land resource, protects the tiled land, and fully utilizes construction waste with wide and large sources to change the waste into valuable. Theproduced sintering brick has temperature preservation and heat insulation, shock and compression resistance, no distortion and high yield, is suitable to industrial large-scale production.

Description

technical field [0001] The invention relates to a sintered brick, in particular to a sintered brick prepared from construction waste. Background technique [0002] Construction waste refers to the construction waste generated after the demolition of artificial building structures, which is generally produced during the construction process or during the maintenance and demolition of old buildings. It is one of the important types of urban solid waste. With the acceleration of the pace of modernization in our country, construction waste is increasing day by day. Every time a building is demolished, hundreds of tons or even thousands of tons of construction waste will be generated. Construction waste not only takes up space, pollutes groundwater, pollutes the air, and is difficult to decompose. How much construction waste was produced by the 2008 earthquake, and how to clean up and dispose of this construction waste has become a common concern of all sectors of society. How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C1/00C04B33/00
Inventor 陈文光
Owner 上海鑫晶山淤泥研发有限公司
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