Color-changing baking-free water-permeable brick by using solid waste and preparation method

A technology for permeable bricks and solid waste is applied in the field of discoloration and non-burning permeable bricks and their preparation, which can solve the problems of inability to achieve energy-saving development, high energy consumption in cement production, and high production costs, so as to ensure water permeability, reduce production costs, and enhance strength. and wear resistance

Active Publication Date: 2019-08-23
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The pursuit of the quality of permeable bricks is still the direction pursued by researchers who use permeable building materials. The inventor found that there are permeable bricks designed in the prior art, but the main material of permeable bricks is cement, and the energy consumption of cement production is relatively large. , the production cost is high, and energy-saving development cannot be realized; in addition, the strength and wear resistance of the permeable bricks manufactured in the prior art need to be further improved

Method used

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  • Color-changing baking-free water-permeable brick by using solid waste and preparation method

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preparation example Construction

[0034] A method for preparing a color-changing burn-free permeable brick utilizing solid waste, comprising the following contents:

[0035] 1) Weigh the red mud, aluminate cement and steel slag in proportion, and add the corresponding proportion of early strength agent and water reducer. According to the percentage by weight, the red mud is 40-60 parts, and the aluminate cement is 5 to 25 parts, 30 to 50 parts of aggregate (a mixture of steel slag and iron tailings), 0.2 to 0.4 parts of water reducing agent, 0.2 to 0.6 parts of early strength agent, 20 to 50 parts of water, and mix well to obtain the base layer mixture .

[0036] 2) Weigh ceramic waste, water glass solution, color-changing glass particles and water in proportion. According to the percentage by weight, the amount of ceramic waste is 45-65 parts, the water glass solution is 1-15 parts, the color-changing glass particles is 20-30 parts, and the water is 12-18 parts. Mix well to obtain a topping mix.

[0037] 3...

Embodiment 1

[0039] A color-changing fire-free permeable brick utilizing solid waste, comprising a surface layer and a base layer, the surface layer and the base layer are combined by an adhesive, the mass ratio of the surface layer to the base layer is 1:7-9, and the mass of the base layer is greater than that of the surface layer , to effectively ensure the strength and wear resistance of permeable bricks. The surface layer includes ceramic waste, water glass solution, color-changing glass particles and water, and the base layer includes red mud, iron-aluminate cement, aggregate, water reducing agent and early strength agent. Among them, ceramic waste, color-changing glass particles, red mud, ferric chlorate cement and aggregates are all derived from solid waste. Color-changing glass particles effectively realize the color-changing effect of permeable bricks. The aggregate has a pressure effect through the binder and can The base layer is effectively bonded together, and the aggregate mak...

Embodiment 2

[0050] A method for preparing a color-changing burn-free permeable brick utilizing solid waste, comprising the following contents:

[0051] 1) Take 40 parts of red mud, 30 parts of ferri-aluminate cement, 30 parts of aggregate (a mixture of steel slag and iron tailings), 0.2 part of water reducing agent, 0.2 part of early strength agent, 20 parts of water, and stir evenly to prepare into the grassroots.

[0052] 2) Take 55 parts of ceramic waste, 15 parts of water glass solution, 30 parts of color-changing glass particles, and 18 parts of water, and stir evenly to make a surface layer.

[0053] 3) Put the above materials in a mixer and stir evenly, then first fill the metal mold with the color-changing surface layer mixture 6mm, then fill it with the binder and the base layer mixture, and then press molding at one time, the pressure 20MPa, and finally cured for 14 days to obtain formed permeable bricks.

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Abstract

The invention discloses a color-changing baking-free water-permeable brick by using a solid waste and a preparation method, solves the problem of the large energy consumption of the water-permeable brick product in the prior art, and has the beneficial effects that the existing solid waste can be fully utilized, the energy is saved, and the social environment is protected. The scheme is as follows: the color-changing baking-free water-permeable brick by using the solid waste comprises a surface layer and a base layer, wherein the surface layer and the base layer are combined together, the surface layer comprises a ceramic waste, a water glass solution, color-changing glass particles and water, the base layer comprises a red mud, a ferrous aluminate cement, an aggregate, a water reducing agent and an early strength agent, and the ceramic waste, the color-changing glass particles, the red mud, the ferrous aluminate cement and the aggregate are all derived from the solid waste.

Description

technical field [0001] The invention relates to the field of utilization of industrial waste slag resources, in particular to a color-changing burn-free permeable brick utilizing solid waste and a preparation method thereof. Background technique [0002] Red mud is an industrial solid waste discharged from the aluminum industry after refining alumina from bauxite. Generally, for every ton of alumina produced, one ton of red mud is incidentally produced. According to incomplete statistics, the annual discharge of red mud in my country is as high as tens of millions of tons, and the cumulative storage of more than tens of millions of tons has been accumulated. The utilization rate of red mud is low, and a large amount of red mud cannot be fully and effectively utilized, and a large amount of red mud is accumulated on flat land and hillsides. , occupying a large amount of land and causing serious harm to the environment. Therefore, it is imminent to reduce the output and harm ...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B28/06
CPCC04B28/06C04B28/26C04B2111/00284C04B2111/00612C04B2201/50C04B18/165C04B14/22C04B18/0409C04B18/142C04B18/12C04B2103/302C04B2103/12
Inventor 李召峰刘超张健齐延海高益凡戴文杰
Owner SHANDONG UNIV
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