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Environment-friendly regenerated brick and preparation process thereof

A recycled brick, environmentally friendly technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of irreparable, impact on the strength of recycled bricks, etc., to improve utilization rate, high density, reduce production cost effect

Inactive Publication Date: 2022-03-08
深圳市坤鹏环保建筑废料处理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above-mentioned related technologies, the inventor believes that since the construction waste is obtained by crushing the construction materials of waste buildings, and the construction waste tends to have a large number of irreparable cracks during the crushing process, which easily leads to the regeneration of bricks mixed with construction waste. Therefore, it is usually necessary to add some natural aggregates to recycled bricks, and there will be compatibility problems between natural aggregates and construction waste, and it is easy to have a certain impact on the strength of recycled bricks. Therefore, still room for improvement

Method used

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  • Environment-friendly regenerated brick and preparation process thereof
  • Environment-friendly regenerated brick and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] This embodiment discloses a method for preparing environmentally friendly regenerated bricks, including the following steps:

[0048] Step a, crush the construction waste, and use a screen to screen out crushed stones with a particle size of 16-20mm, crushed stones with a particle size of 1-5mm and stone powder with a particle size of 0.1-0.5mm, and take crushed stones with a particle size of 16-20mm 60kg of stone, 20kg of crushed stone with a particle size of 1-5mm and 20kg of stone powder with a particle size of 0.1-0.5mm are mixed evenly to form recycled aggregate and set aside.

[0049] Add 6kg of Portland cement, 1kg of water, 0.5kg of nano-silica fume, and 0.1kg of fatty alcohol polyoxyethylene ether into the concrete mixer in sequence, stir at a speed of 50r / min, and mix evenly to obtain a prefabricated mixture.

[0050] Then take 92kg of the recycled aggregates prepared above and put them into a steel container, then add the prefabricated mixture into the steel ...

Embodiment 2-3

[0056] The difference from Example 1 is that the reaction conditions such as the addition amount of each component, the pressure of each step, the ultrasonic frequency, temperature and time are different, and the unit of the addition amount of each component is kg or mL. See Table 2 for details.

[0057] Among them, the modified mixed liquid is formed by uniformly mixing 800mL tetraethoxysilane, 200mL ether and 300mL ethanol; the modifier is formed by uniformly mixing 1000mL didecyldimethylammonium chloride and 400mL benzene.

[0058] Table 2

[0059]

[0060]

Embodiment 4

[0062] The difference from Example 3 is that the recycled aggregate is uniformly mixed with 60kg of gravel with a particle size of 12-15mm, 20kg of crushed stone with a particle size of 5-10mm, and 20kg of stone powder with a particle size of 0.05-0.1mm.

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Abstract

The invention relates to the field of regenerated bricks, and particularly discloses an environment-friendly regenerated brick and a preparation method thereof. The preparation method of the environment-friendly recycled brick comprises the following steps: step a, mixing Portland cement, water, nano silica fume and fatty alcohol-polyoxyethylene ether to form a prefabricated mixture, then infiltrating the prefabricated mixture into gaps of recycled aggregate, and mixing the prefabricated mixture with the filled recycled aggregate to obtain a mixture; step b, performing modification operation on silicon dioxide to obtain modified silicon dioxide; c, performing modification operation on the coconut shell fibers to obtain modified coconut shell fibers; step d, mixing the mixed material, the modified silicon dioxide and the modified coconut fiber, and standing, curing and forming to obtain the environment-friendly regenerated brick. The preparation method disclosed by the invention has the advantages that the environment-friendly recycled brick can completely utilize the recycled aggregate to replace natural aggregate, resources are saved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of recycled bricks, in particular to an environmentally friendly recycled brick and a preparation process thereof. Background technique [0002] Regenerated bricks are made of broken ruins as aggregates, mixed with cut wheat straw as fibers, cement, sand, etc., and made into lightweight blocks by the original brick factory in the disaster area, which are used as reconstruction materials in the disaster area. [0003] In view of the above-mentioned related technologies, the inventor believes that since the construction waste is obtained by crushing the construction materials of waste buildings, and the construction waste tends to have a large number of irreparable cracks during the crushing process, which easily leads to the regeneration of bricks mixed with construction waste. Therefore, it is usually necessary to add some natural aggregates to recycled bricks, and there will be compatibility problems between natural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B40/00C04B20/02C04B18/24C04B18/26C04B20/00C04B18/16
CPCC04B28/04C04B40/0028C04B20/023C04B18/248C04B18/26C04B20/0076C04B2201/50C04B18/146C04B24/32C04B18/16C04B14/06Y02W30/91
Inventor 张军贤马瑞赵会革
Owner 深圳市坤鹏环保建筑废料处理有限公司
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