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A fluorescent photocatalytic permeable brick and its preparation method

A technology of fluorescent light and permeable bricks, which is applied in the field of engineering and building materials, can solve the problems of poor adhesion of coatings, etc., and achieve the effects of improving surface brightness, high photocatalytic efficiency, and improving light reflection ability

Active Publication Date: 2022-03-15
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The visible light catalytic performance of the visible light catalytic permeable brick is mainly composed of Fe 2 o 3 / g -C 3 N 4 Visible light catalysis paint layer is realized, but the paint itself has the problem of poor bonding performance, and its photocatalytic performance can only be photocatalyzed under the condition of external visible light.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031]The preparation method of the fluorescent photocatalytic permeable brick comprises the following steps:

[0032] 1) Evenly dry mix 2-4 parts of fluorescent stone, 10-20 parts of quartz sand and 10-20 parts of transparent glass sand to form a mixed aggregate;

[0033] 2) Evenly dry mix 6~10 parts of white cement and 1~2 parts of fluorescent powder to form a dry powder;

[0034] 3) Disperse 1 to 2 parts of carbon nitride nanosheets in 3 to 6 parts of mixing water required for the fluorescent photocatalytic composite layer, and perform ultrasonic dispersion treatment to form a suspension of carbon nitride nanosheets;

[0035] 4) Mix the suspension of carbon nitride nanosheets in step 3) and the required 0-2 parts of PTB emulsion to form A solution;

[0036] 5) Fully mix the mixed aggregate in step 1), the dry powder in step 2) and the solution A in step 4), and stir evenly to obtain fluorescent photocatalytic composite permeable concrete with good working performance.

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Embodiment 1

[0040] A fluorescent photocatalytic permeable brick. The permeable brick has a double-layer structure, including a recycled aggregate permeable layer on the lower layer of the permeable brick, and a fluorescent photocatalytic composite permeable layer on the upper layer. The recycled aggregate permeable layer, in parts by mass, includes 30 parts of recycled aggregate, 10 parts of P.O 42.5 ordinary Portland cement, and 4 parts of water; the fluorescent photocatalytic composite permeable layer, in parts by mass Calculated, including 6 parts of white cement, 2 parts of fluorescent stone, 1 part of fluorescent powder, 1 part of carbon nitride nanosheet, 10 parts of quartz sand, 20 parts of transparent glass sand, 1 part of PTB emulsion, and 3 parts of water.

[0041] The total thickness of the permeable bricks is 50 mm, the thickness of the recycled aggregate permeable layer is 30-40 mm, and the thickness of the fluorescent photocatalytic composite water-permeable layer is 10-20 mm...

Embodiment 2

[0053] A fluorescent photocatalytic permeable brick. The permeable brick has a double-layer structure, including a recycled aggregate permeable layer on the lower layer of the permeable brick, and a fluorescent photocatalytic composite permeable layer on the upper layer. The regenerated aggregate permeable layer is In total, it includes 40 parts of recycled aggregate, 13 parts of P.O 42.5 ordinary portland cement, and 5 parts of water; the fluorescent photocatalytic composite water-permeable layer, in parts by mass, includes 8 parts of white cement, 3 parts of fluorescent stone, 2 parts of fluorescent powder, 2 parts of carbon nitride nanosheets, 20 parts of quartz sand, 10 parts of transparent glass sand, 2 parts of PTB emulsion, and 5 parts of water.

[0054] The total thickness of the permeable bricks is 50 mm, the thickness of the recycled aggregate permeable layer is 30-40 mm, and the thickness of the fluorescent photocatalytic composite water-permeable layer is 10-20 mm. ...

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Abstract

The invention belongs to the technical field of engineering building materials, and in particular relates to a fluorescent photocatalytic permeable brick and a preparation method thereof. The fluorescent photocatalytic permeable brick is divided into a double-layer structure, the lower layer of the permeable brick is a recycled aggregate permeable layer, and the upper layer is a fluorescent photocatalytic composite concrete layer. The present invention uses the permeable brick as the matrix, adopts layered molding method, and divides the permeable brick into a double-layer structure, which not only ensures the strength of the permeable brick, but also improves the utilization rate of fluorescent materials and carbon nitride nanosheets, and adds quartz sand And PTB emulsion, which enhances the wear resistance and waterproof performance of the permeable brick; secondly, due to the addition of carbon nitride nanosheets and fluorescent powder, the permeable brick has self-sustained luminescence, visible light catalytic purification, and self-cleaning. The invention is suitable for park walkways or sidewalks, not only meeting the water permeability requirements of the pavement, but also possessing fluorescent properties that emit light at night for identification, and continuously photocatalytically degrade pollutants to keep them clean and tidy, which is conducive to popularization and application.

Description

technical field [0001] The invention belongs to the technical field of engineering building materials, and in particular relates to a fluorescent photocatalytic permeable brick and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, more and more people go for a walk in the park at night, and the construction standards of ecological parks are getting higher and higher. The use of lighting is not only expensive for installation, but also for later maintenance and use. Therefore, fluorescent pavement has become a research hotspot. However, the existing fluorescent pavement has problems such as poor luminous effect, poor wear resistance, easy to be covered by dust, high cost and poor durability, which limit its large-scale engineering application. [0003] As a common permeable measure in the construction of "sponge city", permeable bricks provide infiltration channels for rainwater, reduce ground water, reduce surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B38/00E01C15/00E01C17/00E01C5/04F21V33/00C04B111/20C04B111/80
CPCC04B28/04E01C15/00E01C17/00E01C5/04F21V33/006C04B2111/00612C04B2111/807C04B2111/00284C04B2111/2061C04B2111/2038C04B18/16C04B38/0041C04B14/325C04B14/06C04B14/22C04B24/2682C04B2103/0068
Inventor 梁咏宁季韬杨锦湖刘星邑
Owner FUZHOU UNIV