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Unburned water-permeable brick with solid wastes as base materials and preparation method thereof

A technology of solid waste and permeable bricks, applied in the manufacture of tools, ceramic molding machines, etc., can solve the problems of land occupation, consumption of natural resources, environmental pollution, etc., and achieve high mechanical properties, high corrosion resistance, and high weather resistance Effect

Inactive Publication Date: 2016-09-21
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, with the rapid development of my country's real estate industry and industrialization process, while consuming a large amount of natural resources, it also produces a large amount of solid waste such as waste bricks and tiles, waste wall and floor tiles, waste saggers, waste tiles and polishing slag. , these solid wastes not only take up valuable land resources and form "garbage mountains", but also seriously pollute the environment

Method used

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  • Unburned water-permeable brick with solid wastes as base materials and preparation method thereof

Examples

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Effect test

Embodiment 1

[0025] A method for preparing solid waste-based unfired permeable bricks, comprising the following steps:

[0026] Step 1: Raw material crushing: crush the waste bricks and tiles, screen out medium-coarse particles passing through a 10-40 mesh sieve, and homogenize and dry the medium-coarse particles for later use;

[0027] Step 2: Raw material milling: After crushing the waste bricks and tiles, dry ball milling to pass through a 150-mesh sieve, and the sieve residue is less than 0.5%;

[0028] Step 3: Preparation of liquid sol-gel agent (wt%): Weigh 20% of silicon micropowder, 25% of sodium hydroxide, and 55% of purified water, put it into a ball mill, quickly crush it for 10 minutes, pour it into a sealed container, and keep it warm at 60°C 48h, standby after fully reacting;

[0029] Step 4: uniform mixing, sieving and granulation: the waste brick and tile fine powder 72wt% and CaCl 2 2wt%, mix homogeneously to obtain the base material, then add step 3 prepared liquid sol...

Embodiment 2

[0034] A method for preparing solid waste-based unfired permeable bricks, comprising the following steps:

[0035] Step 1: Raw material crushing: crush waste wall and floor tiles and waste saggers, screen out medium-coarse particles that pass through a 10-40 mesh sieve, and homogenize and dry the medium-coarse particles for later use;

[0036] Step 2: Raw material milling: After mixing waste wall and floor tiles and waste saggers, drying them, dry ball milling until they pass through a 150-mesh sieve, and the sieve residue is less than 0.5%;

[0037] Step 3: Preparation of liquid sol-gel agent (wt%): Weigh 30 micro-silica powder, 30 sodium hydroxide, and 40 purified water, put them into a ball mill, quickly crush them for 10 minutes, pour them into a sealed container, and keep them warm at 60°C 25h, standby after fully reacting;

[0038] Step 4: Uniform mixing, sieving and granulation: the waste wall and floor tiles 39wt% and waste sagger fine powder 39wt% and CaF 2 2wt%, m...

Embodiment 3

[0043] A method for preparing solid waste-based unfired permeable bricks, comprising the following steps:

[0044] Step 1: Raw material crushing: crush waste bricks and tiles and ceramic waste pieces, screen out medium-coarse particles passing through a 10-40 mesh sieve, and homogenize and dry the medium-coarse particles for later use;

[0045] Step 2: Raw material milling: Mix and dry the crushed waste bricks and tiles and fly ash, dry ball mill until they pass through a 150-mesh sieve, and the sieve residue is less than 0.5%;

[0046] Step 3: Preparation of liquid sol-gel agent (wt%): Weigh 40 micronized silicon powder, 355 sodium hydroxide and 25 purified water, put them into a ball mill, crush them quickly for 10 minutes, pour them into a sealed container, and keep warm at 60°C 60h, standby after fully reacting;

[0047] Step 4: uniform mixing, sieving and granulation: by mass percentage, waste brick and tile fine powder 42wt%, fly ash 42wt% and CaF 2 1wt%, KOH 1wt%, mi...

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Abstract

The invention relates to an unburned water-permeable brick with solid wastes as base materials. The unburned water-permeable brick is characterized by comprising the following steps: with the solid wastes as main raw materials, subjecting the following components: 70 to 85 wt% of solid waste powder, 12 to 29 wt% of a liquid sol-gel agent, 1 to 3 wt% of a base material additive, and 20 wt% of additive solid waste particles to stirring, molding, curing and edging so as to obtain a water-permeable brick product. According to the invention, a variety of solid wastes of a building ceramic plant, a brick and tile plant and a garbage mountain are utilized as raw materials, so land occupation and pollution are reduced; meanwhile, product performances reach the national standards of the water-permeable brick; the unfired water-permeable brick rapidly forms a chemical bonded three-dimensional microstructure after simple and practicable special maintenance for 2 to 10 h, so the brick can reach, with a part of performances superior to, the level of other types of unfired water-permeable bricks at an age of 28 days; the solid wastes in a construction site, the garbage mountain and the like can be utilized as the raw materials, so the waste is turned into treasure; and the water-permeable brick used as one of foundation building materials in a sponge city has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of building material preparation, and in particular relates to a fire-free permeable brick based on solid waste and a preparation method thereof. Background technique [0002] With the gradual acceleration of urbanization in our country, the surface of the earth is gradually covered by various buildings, cement, concrete, and natural stone. The impermeable ground material cannot allow rainwater to seep into the ground, even if the groundwater level drops, and urban waterlogging is likely to occur in case of heavy rain; at the same time, the impermeable pavement basically cannot exchange moisture and heat with the atmosphere, making it difficult to regulate Surface temperature and humidity, together with buildings, form the urban "heat island effect". On the other hand, with the rapid development of my country's real estate industry and industrialization process, while consuming a large amount of natural res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/24B28B3/00B28B1/04
CPCC04B28/24B28B1/04B28B3/00
Inventor 李川陈云霞胡海泉曹春娥黄爱玲
Owner JINGDEZHEN CERAMIC INSTITUTE