Residue soil baking-free brick and preparation method thereof

A technology for unburned bricks and slag, applied in the field of unburned bricks, can solve the problems of high production cost of slag unburned bricks, poor water stability, small proportion of solid waste, etc., so as to reduce the cost of brick making and reduce performance requirements. , to achieve the effect of reuse

Pending Publication Date: 2021-03-19
西安市政道桥建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application solves the problems of high production cost, poor water stability and low specific gravity of solid waste in the prior art by providing a kind of dregs-free brick and its preparation method

Method used

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  • Residue soil baking-free brick and preparation method thereof
  • Residue soil baking-free brick and preparation method thereof
  • Residue soil baking-free brick and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0063] The present invention also provides a method for preparing slag-free bricks, comprising the steps of:

[0064] After the dregs are air-dried until the moisture content is less than 15%, they are broken up for later use;

[0065] Mix the broken up slag with fly ash, cement, lime, and brick-concrete construction waste to obtain premixed dry material;

[0066] Spray and add water to the premixed dry material under stirring to obtain a wet mixed material;

[0067] Pressing and molding the wet mixture to obtain the unfired brick embryo with slag;

[0068] After the curing treatment is carried out on the slag-soil unburned brick embryo, the slag-soil unburned brick is obtained.

[0069] Further, the pressure of the wet mix is ​​controlled to be 8-10MPa by using the brick making machine.

[0070] Further, the maintenance treatment includes:

[0071] Cured under steam conditions of 60-80°C for 6-8 hours.

[0072] Further, when spraying and adding water to the wet mixture, ...

Embodiment 1

[0075] The present embodiment 1 provides a slag-soil unburned brick, the weight ratio of its raw material components is: 60% of slag, 10% of fly ash, 15% of cement, 14% of brick-concrete construction waste, and 1.0% of lime.

[0076] Preparation methods, including:

[0077] S1: Dry the dregs until the moisture content is less than 15%, then disperse them with a dispersing machine for later use;

[0078] S2: Put the broken up slag, fly ash, cement, lime, and brick-concrete construction waste into a wheel-roller forced mixer and mix to obtain a premixed dry material;

[0079] S3: Spray and add water to the premixed dry material under stirring, and the amount of water added is 9% of the weight of the premixed dry material to obtain a wet mixed material;

[0080] S4: According to the standard size of unburned bricks being 240×115×53 mm, the wet mixture is pressed with a brick press with a pressure of 10 MPa to obtain dregs and unburned brick embryos;

[0081] S5: Carry out maint...

Embodiment 2

[0084] Example 2 provides a muck-free brick. The weight ratio of raw material components is: 55% muck, 10% fly ash, 14% cement, 20% brick-concrete construction waste, and 1.0% lime.

[0085] Preparation methods, including:

[0086] S1: Dry the dregs until the moisture content is less than 15%, then disperse them with a dispersing machine for later use;

[0087] S2: Put the broken up slag, fly ash, cement, lime, and brick-concrete construction waste into a wheel-roller forced mixer and mix to obtain a premixed dry material;

[0088] S3: Spray and add water to the premixed dry material under stirring, and the amount of water added is 9% of the weight of the premixed dry material to obtain a wet mixed material;

[0089] S4: According to the standard size of unburned bricks being 240×115×53 mm, the wet mixture is pressed with a brick press with a pressure of 10 MPa to obtain dregs and unburned brick embryos;

[0090] S5: Carry out maintenance treatment on the slag unburned brick...

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Abstract

The invention discloses a residue soil baking-free brick and a preparation method thereof, and relates to the technical field of baking-free bricks. The baking-free brick is formed by pressing 40-60%of muck, 10-20% of fly ash, 10-20% of cement, 10-20% of brick-concrete construction waste and 0.5-2% of lime as raw materials, a soil curing agent does not need to be doped any more, the specific gravity of solid waste in the raw material components reaches 78% or above, particularly, the 7-day strength of the baking-free brick is larger than 15 MPa, and the softening coefficient is larger than 0.8. The problems of high production cost, poor water stability and small specific gravity of solid wastes of the muck baking-free brick in the prior art are solved, the doping amount of the solid wastes such as muck, fly ash and construction wastes is increased on the premise of ensuring the compressive strength of the baking-free brick, the production cost is reduced, and the method is more economical and environment-friendly.

Description

technical field [0001] The present application relates to the technical field of unburned bricks, in particular to a dregs unburned brick and a preparation method thereof. Background technique [0002] Burn-free brick is a new type of wall material that uses fly ash, coal slag, coal gangue, tailings slag, chemical slag or natural sand, sea mud, etc. as the main raw materials, and is pressed without high-temperature calcination. The production process is simple. Unburned bricks can use waste residue resources such as slag as raw materials, which are low-cost, energy-saving and environmentally friendly, and their market share continues to grow. The muck generated from the foundation pit construction is transported to the waste dregs in the suburbs, which not only causes a waste of resources, but also often leaks during transportation, which seriously affects the appearance of the city and traffic order, and even causes environmental pollution, river silting and soil pollution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B40/02
CPCC04B28/04C04B2111/00017C04B2201/50C04B18/16C04B18/08C04B22/064C04B40/024
Inventor 赵维牟正平杨欣宋月花张舟牛建荣田琨雷蓓
Owner 西安市政道桥建设集团有限公司
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