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A preparation process of inorganic polymerization environment-friendly non-burning brick produced by volcanic ash

A technology of inorganic polymerization and preparation process, applied in the field of building bricks, can solve the problems of the limited quantity of lead-zinc tailings and phosphogypsum, reduce the practical application value of non-burning bricks, and cannot meet the needs of construction, and saves clay resources and heat. Energy, lower brick production cost, high compressive strength effect

Inactive Publication Date: 2018-04-06
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the traditional construction industry, clay and shale are mostly used as raw materials and sintered at high temperature (900-1000°C) to make solid / hollow bricks. Pollution gas is produced during the process, which is contrary to the requirements of sustainable development; in order to solve this problem, burn-free bricks have gradually developed
In the prior art, unfired bricks mostly use waste copper tailings, iron tailings, lead-zinc tailings, and phosphogypsum as the main raw materials, and volcanic ash as active auxiliary materials for preparation. The production process does not require sintering, which is energy-saving and environmentally friendly. At the same time, waste Resources are reused, but the amount of abandoned copper tailings, iron tailings, lead-zinc tailings and phosphogypsum is limited, which cannot meet the growing demand for construction and reduces the practical application value of unburned bricks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An inorganic polymerization environment-friendly non-burning brick produced by volcanic ash. The raw materials include: volcanic ash and 13mol / L NaOH solution. The particle size distribution range of the volcanic ash is: the content of the volcanic ash with a particle size of 0.25-1mm is 15wt%, the content of the volcanic ash with a particle size of 0.18-0.25mm is 50%, and the content of the volcanic ash with a particle size of 2 : 62%, Al 2 o 3 : 16%, TFe 2 o 3 : 6%, CaO: 1%, K 2 O: 6%, Na 2 O: 6%, TiO 2 : 0.8%, P 2 o 3 : 0.2%, MnO: 0.2% and other unavoidable impurities.

[0017] The production process is as follows: the volcanic ash and 13mol / L NaOH solution are stirred and mixed evenly with a mixer, and the humidity is adjusted so that the water content of the unburned brick is 15%. Put the stirred sample into a concrete cube standard test mold of 70.7mm×70.7mm×70.7mm, after manual vibration is sufficient, put it into an oven, and control the curing temperatu...

Embodiment 2

[0019] An inorganic polymerization environment-friendly non-burning brick produced by volcanic ash. The raw materials include: volcanic ash and 14mol / L NaOH solution. The particle size distribution range of the volcanic ash is as follows: the content of the pozzolan with a particle size > 1 mm is 5 wt%, the content of the pozzolan with a particle size of 0.25-1 mm is 15 wt%, the content of the pozzolan with a particle size of 0.18-0.25 mm is 40%, and the content of the pozzolan with a particle size 2 : 65.51%, Al 2 o 3 : 15.85%, TFe 2 o 3 : 5.81%, CaO: 1.27%, MgO: 0.38%, K 2 O: 4.66%, Na 2 O: 5.13%, TiO 2 : 0.59%, P 2 o 3 : 0.1%, MnO: 0.15% and other unavoidable impurities.

[0020] The production process is as follows: the volcanic ash and 14mol / L NaOH solution are stirred and mixed evenly with a mixer, and the humidity is adjusted so that the water content of the unburned brick is 16%. Put the stirred sample into a concrete cube standard test mold of 70.7mm×70.7mm×70...

Embodiment 3

[0022] An inorganic polymerization environment-friendly non-burning brick produced by using volcanic ash. The materials include: volcanic ash and 15mol / L NaOH solution. The particle size distribution range of the volcanic ash is: the content of the pozzolan with a particle size > 1 mm is 5 wt%, the content of the pozzolan with a particle size of 0.25-1 mm is 10 wt%, the content of the pozzolan with a particle size of 0.18-0.25 mm is 45%, and the content of the pozzolan with a particle size 2 : 66%, Al 2 o 3 : 13%, TFe 2 o 3 : 4%, CaO: , 2%, MgO: 0.5%, K 2 O: 4%, Na2O: 4%, TiO2: 0.2% and other unavoidable impurities.

[0023] The production process is as follows: the volcanic ash and 15mol / L NaOH solution are stirred and mixed evenly with a mixer, and the humidity is adjusted so that the water content of the unburned brick is 17%. Put the stirred sample into a concrete cube standard test mold of 70.7mm×70.7mm×70.7mm, after manual vibration is sufficient, put it into an oven...

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Abstract

The invention relates to the technical field of building bricks and particularly relates to an inorganic polymerization environment-friendly baking-free brick produced with volcanic ash and a preparation process thereof. The baking-free brick includes the raw materials of the volcanic ash and a 13-15 mol / L NaOH solution. The preparation method includes the steps of: with the volcanic ash as a raw material, regulating the moisture with the 13-15 mol / L NaOH solution until the water content of the baking-free brick is 15-17%, and maintaining the baking-free brick for 7 days at 90 DEG C to obtain the product. The inorganic polymerization environment-friendly baking-free brick is high in compactness and high in compressive strength. In the invention, the volcanic ash resource is creatively fully utilized, thereby saving clay resources and heat energy, and reducing the cost of producing bricks. The preparation process is simple and is low in labor intensity. The baking-free brick can be widely used in filling blocks for load bearing in a building.

Description

technical field [0001] The invention relates to the technical field of building bricks, in particular to a preparation process of an inorganic polymerization environment-friendly burning-free brick produced by using volcanic ash. Background technique [0002] In the traditional construction industry, clay and shale are mostly used as raw materials and sintered at high temperature (900-1000°C) to make solid / hollow bricks. Pollution gas is produced during the process, which is contrary to the requirements of sustainable development; in order to solve this problem, burn-free bricks have gradually developed. In the prior art, unfired bricks mostly use waste copper tailings, iron tailings, lead-zinc tailings, and phosphogypsum as the main raw materials, and volcanic ash as active auxiliary materials for preparation. The production process does not require sintering, which is energy-saving and environmentally friendly. At the same time, waste Resources are reused, but the amount ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00
CPCC04B28/006C04B22/062
Inventor 秦胜伍张梅丽杨云星高小雲徐化楠黄奕斌
Owner JILIN UNIV