Permeable bricks inlaid with nanometer titanium dioxide and preparation method thereof

A technology of nano-titanium dioxide and titanium dioxide, which is applied in the field of building materials, can solve the problems of waste, unpurified sewage, and increased costs, and achieve the effects of prolonging the permeable life, protecting clay resources, and enriching connection technology

Active Publication Date: 2012-07-04
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the permeable bricks currently produced and sold or people are working on research only focus on improving their mechanical strength and water permeability. Although these permeable bricks are neat, beautiful and dust-proof, they can alleviate urban waterlogging to a certain extent and replenish urban groundwater. , to regulate the urban environment, but they simply allow precipitation to seep into the ground through the bricks, cannot effectively remove the pollutants contained in the water, and cannot purify the sewage that passes through the bricks
In addition, there are many pollutants such as chewing gum adhered to the brick surface that cannot be removed by cleaning tools. The pores of the permeable brick are easily blocked by some pollutants carried in the precipitation, which affects the permeable fu...

Method used

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  • Permeable bricks inlaid with nanometer titanium dioxide and preparation method thereof
  • Permeable bricks inlaid with nanometer titanium dioxide and preparation method thereof
  • Permeable bricks inlaid with nanometer titanium dioxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Preparation of permeable brick matrix

[0031] Weigh raw materials: Weigh the following components by mass percentage: sugar filter mud with a particle size of 100 to 160 mesh: 30%, 100 to 140 mesh fly ash: 35%, 8 to 100 mesh organic wood fiber powder: 5%, 100 mesh ~180 mesh clay: 30%.

[0032] Put the raw materials into the roller ball mill for 2 hours to make the components of the raw materials fully mixed, take out the formed mixture, spray water to moisten the granulation, and then carry out stale treatment; use a brick press to press the material into bricks under a molding pressure of 15MPa, Dry the adobe at 80°C for 2 hours, and then sinter it in a resistance furnace. Heating process: ①From room temperature to 500℃, the heating rate is 6℃ / min; ②500℃~950℃, the heating rate is 2℃ / min; ③950℃~1060℃, the heating rate is 1℃ / min. The maximum temperature is 1060°C, and the permeable bricks are cooled with the furnace after 30 minutes of heat preservation.

[0033] ...

Embodiment 2

[0041] 1. Preparation of permeable brick matrix

[0042] Weigh raw materials: Weigh the following components by mass percentage: sugar filter mud with a particle size of 100 to 160 mesh: 35%, 100 to 140 mesh fly ash: 32%, 8 to 100 mesh organic wood fiber powder: 3%, 100 mesh ~180 mesh clay: 30%.

[0043] Put the raw materials into a roller ball mill for 1.5 hours to make the components of the raw materials fully mixed evenly, then take out the formed mixture, spray water to moisten and granulate, and then carry out stale treatment. Use a brick press to press the materials into adobes under a molding pressure of 20 MPa, dry the adobes at 40°C for 3 hours, and then sinter them in a resistance furnace. Heating process: ① From room temperature to 800°C, the heating rate is 6°C / min; ②800°C to 1000°C, the heating rate is 2°C / min; ③1000°C to 1070°C, the heating rate is 1°C / min; the highest temperature is 1070°C, after holding for 20 minutes The permeable bricks are cooled with the ...

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PUM

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Abstract

The invention relates to permeable bricks inlaid with nanometer titanium dioxide and a preparation method thereof and belongs to the field of building materials. According to the preparation method provided by the invention, titanium dioxide precursor turbid liquid is evenly sprayed into holes of permeable brick base bodies, and then the permeable brick base bodies are dried and calcined for 10-30 min so as to obtain the permeable bricks inlaid with nanometer titanium dioxide and anatase type nanometer titanium dioxide is uniformly inlaid in the holes of the obtained permeable bricks. The permeable bricks can effectively degrade contaminants in water seepage passing though the permeable bricks and some organic contaminants attached to the surfaces of brick bodies in a manner of photochemical catalysis and also can degrade a part of gaseous pollutants in air in a manner of photochemical catalysis.

Description

technical field [0001] The invention relates to a permeable brick inlaid with nano-titanium dioxide and a preparation method thereof, belonging to the field of building materials. Background technique [0002] Most of the permeable bricks currently produced and sold or people are working on research only focus on improving their mechanical strength and water permeability. Although these permeable bricks are neat, beautiful and dust-proof, they can alleviate urban waterlogging to a certain extent and replenish urban groundwater. , to regulate the urban environment, but they simply allow precipitation to seep into the ground through the bricks, cannot effectively remove the pollutants contained in the water, and cannot purify the sewage that passes through the bricks. In addition, there are many pollutants such as chewing gum adhering to the brick surface that cannot be removed by cleaning tools. The pores of the permeable bricks are easily blocked by some pollutants carried i...

Claims

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Application Information

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IPC IPC(8): E04C1/00C04B41/65B28B3/00
CPCY02A50/20
Inventor 高文元李秀兰贾兴新荆扬扬钱超刘建波高东东王明张转运张益斌高鹏博
Owner DALIAN POLYTECHNIC UNIVERSITY
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