Baking-free archaized black brick based on construction waste tailings as well as preparation method and application of black brick

A technology for construction waste and antique blue bricks, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems such as environmental pollution, achieve broad market prospects, high block strength, and improve the effect of density

Active Publication Date: 2021-02-26
蒋品
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a non-fired antique green brick based on construction waste tailings, to solve the problem that most of the construction waste tailings are disposed of in landfills in the prior art proposed in the above background technology, which is easy to cause environmental damage. pollution problem

Method used

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  • Baking-free archaized black brick based on construction waste tailings as well as preparation method and application of black brick
  • Baking-free archaized black brick based on construction waste tailings as well as preparation method and application of black brick
  • Baking-free archaized black brick based on construction waste tailings as well as preparation method and application of black brick

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preparation example Construction

[0038] Another purpose of the embodiments of the present invention is to provide a method for preparing non-fired antique green bricks based on construction waste tailings (that is, a method for making unfired antique green bricks using construction waste tailings). The preparation method of the non-fired antique blue brick based on construction waste tailings comprises the following steps:

[0039] Weigh the inorganic solvent (preferably deionized water), sodium alginate, phenolic resin, liquid silicon dioxide, etc. according to the proportion, heat, stir and mix them uniformly in the reaction kettle to prepare the curing agent;

[0040] Weigh water according to the proportion and add it to the curing agent to mix evenly to obtain a diluent;

[0041] Weigh the tailings of construction waste, cement and colorant according to the proportion and mix them evenly, and then mix them evenly with the diluent (by spraying) to obtain the mixture;

[0042] The mixed material is hydraul...

Embodiment 1

[0058] A kind of non-fired archaized blue brick based on construction waste tailings, the specific preparation method is as follows (refer to figure 1 shown):

[0059] 1) Preparation of curing agent (curing admixture): Inject 440kg of deionized water into a reaction kettle with a heating system, heat it to 70°C, add 10kg of sodium alginate, stir for 20min, and heat at the same time to make the temperature in the reaction kettle Raise to 80°C, keep warm for 1h; cool down to 40°C; add 250kg of sulfonated phenolic resin and stir for 1h until it is completely dissolved, then naturally cool to 20°C; add 300kg of liquid silica for full stirring; measure the density at 1.26g / mL, filter, obtain the curing agent of the present embodiment formula, for subsequent use;

[0060] 2) Stirring the mixture: Weigh 900kg of construction waste tailings, 90kg of cement, and 10kg of coloring agent and carry out uniform mixing for 2-3min to obtain a dry mixture; simultaneously take 0.3kg of the ab...

Embodiment 2

[0064] A kind of non-fired archaized blue brick based on construction waste tailings, the specific preparation method is as follows (refer to figure 1 shown):

[0065] 1) Preparation of curing agent (curing admixture): Inject 438kg of deionized water into a reaction kettle with a heating system, heat it to 70°C, add 12kg of sodium alginate, stir for 20min, and heat at the same time to make the temperature in the reaction kettle Raise to 80°C, keep warm for 1h; cool down to 40°C; add 250kg of sulfonated phenolic resin and stir for 1h until completely dissolved, then naturally cool to 20°C; add 300kg of liquid silica and stir thoroughly; measure the density at 1.27g / mL left and right, filter, obtain the solidifying agent of this embodiment formula, for subsequent use;

[0066] 2) Stirring the mixture: Weigh 900kg of construction waste tailings, 90kg of cement, and 10kg of coloring agent and carry out uniform mixing for 2-3min to obtain a dry mixture; simultaneously take 0.3kg ...

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Abstract

The invention relates to the field of environment-friendly building materials, and particularly discloses a baking-free archaized black brick based on construction waste tailings and a preparation method and application of the black brick. The baking-free archaized black brick is prepared from the construction waste tailings, a curing agent, cement, a coloring agent, water and the like as raw materials in a chemical modification mode and is high in strength, high in strength and good in durability. Meanwhile, the black brick has excellent water resistance and anti-ageing property, and a high-density hydraulic forming method is adopted, so that the density of the building material is greatly improved, and harmless and efficient utilization of the construction waste tailings can be promoted.The preparation method provided by the invention is simple, the prepared building material has the advantages of low production cost, high building block strength, good physical waterproof effect, long service life and the like, and the current situation that a large amount of carbon is discharged when most of existing black brick building blocks are manufactured by adopting a sintering method issolved; and meanwhile, the problem that in the prior art, most construction waste tailings are subjected to landfill treatment, and the environment is prone to being polluted is solved, and wide market prospects are achieved.

Description

technical field [0001] The invention relates to the field of environmentally friendly building materials, in particular to an unfired antique green brick based on construction waste tailings, a preparation method and application thereof. Background technique [0002] At present, my country produces at least 2-3 billion tons of construction waste every year, of which plastics, wood, metals, etc. produced in the early stage can be basically recycled, and the primary aggregate, secondary aggregate, and fine aggregate produced after the building is broken Conventional disposal methods can also be directly sold to obtain profits. The most difficult to deal with is construction waste tailings, such as engineering dregs and crushed tailings powder. Due to factors such as large soil content, complex components, and fine particles, domestic existing Some technologies are difficult to reuse as resources. [0003] For the tailings of construction waste, there is currently a lack of effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/16C04B111/54
CPCC04B28/04C04B18/16C04B2201/50C04B2111/547C04B2201/20C04B24/302C04B24/38C04B22/06C04B2103/54Y02W30/91
Inventor 蒋品
Owner 蒋品
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