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A kind of recycled brick prepared by utilizing construction waste and preparation method thereof

A technology of construction waste and regenerated bricks, which is applied in the field of building materials, can solve the problems of waste of construction waste resources, low strength of regenerated bricks, and low service life, and achieve the effects of recycling, improving service life, and solving resource waste

Inactive Publication Date: 2021-09-28
NEIJIANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a regenerated brick prepared from construction waste and its preparation method, which solves the problem of waste of construction waste resources on the one hand, and solves the problems of low strength and low service life of existing regenerated bricks on the other hand

Method used

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  • A kind of recycled brick prepared by utilizing construction waste and preparation method thereof
  • A kind of recycled brick prepared by utilizing construction waste and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The regenerated brick of this embodiment is made of the following raw materials: 100 parts by weight of construction waste aggregate, 10 parts of kaolin, 30 parts of fly ash, 1 part of water reducer, 1 part of early strength agent, and 1 part of antifreeze and 15 parts of water; wherein, construction waste aggregates include: 50% of heavy aggregates, 40% of light aggregates and 10% of wood fiber in terms of weight percentage; heavy aggregates include waste concrete, waste bricks and tiles and waste stones, which The mass ratio is 1:0.5:0.5; the lightweight aggregate includes waste ceramics and waste glass, and its mass ratio is 1:0.8.

[0030] The wood fiber of present embodiment is made by following method:

[0031] Step A: After cleaning the waste wood, the papermaking chemical mechanical pulping method is used to prepare the crude fiber;

[0032] Step B: Soak the crude fiber in lye with a concentration of 5wt% at 35°C for 8 hours, the mass ratio of crude fiber to ly...

Embodiment 2

[0037] The regenerated brick of this embodiment is made of the following raw materials: 100 parts by weight of construction waste aggregate, 20 parts of kaolin, 50 parts of fly ash, 5 parts of water reducer, 5 parts of early strength agent, and 5 parts of antifreeze and 25 parts of water; wherein, construction waste aggregate includes: heavy aggregate 60%, light aggregate 32% and wood fiber 8% by weight percentage; heavy aggregate includes waste concrete, waste brick and tile and waste stone, Its mass ratio is 1:1:1; light aggregate includes waste ceramics and waste glass, and its mass ratio is 1:1.2.

[0038] The wood fiber of present embodiment is made by following method:

[0039] Step A: After cleaning the waste wood, the papermaking chemical mechanical pulping method is used to prepare the crude fiber;

[0040] Step B: Soak the crude fiber in lye with a concentration of 10wt% at 25°C for 8h-12h, the mass ratio of crude fiber to lye is 1:40, and the lye is potassium hydro...

Embodiment 3

[0045] The regenerated brick of this embodiment is made of the following raw materials: 100 parts by weight of construction waste aggregate, 15 parts of kaolin, 40 parts of fly ash, 2 parts of water reducer, 2 parts of early strength agent, and 2 parts of antifreeze and 20 parts of water; wherein, construction waste aggregates include: 55% of heavy aggregates, 35% of light aggregates and 10% of wood fiber in terms of weight percentage; heavy aggregates include waste concrete, waste bricks and tiles and waste stones, which The mass ratio is 1:0.8:0.8; the lightweight aggregate includes waste ceramics and waste glass, and its mass ratio is 1:1.

[0046] The wood fiber of present embodiment is made by following method:

[0047] Step A: After cleaning the waste wood, the papermaking chemical mechanical pulping method is used to prepare the crude fiber;

[0048] Step B: Soak the crude fiber in lye with a concentration of 8wt% at 30°C for 10 hours, the mass ratio of crude fiber to ...

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Abstract

The invention discloses a regenerated brick prepared from construction waste and a preparation method thereof, belonging to the technical field of building materials. The present invention comprises 100 parts by weight of construction waste aggregate, 10-20 parts of kaolin, 30-50 parts of fly ash, 1-5 parts of water reducer, 1-5 parts of early strength agent, and 1-5 parts of antifreeze 15-25 parts and 15-25 parts of water; wherein, construction waste aggregate includes: 50%-60% of heavy aggregate, 30%-40% of light aggregate and 5%-10% of wood fiber by weight percentage; heavy aggregate It comes from waste concrete, waste bricks and tiles and waste stone, light aggregate comes from waste ceramics and waste glass, and wood fiber comes from waste wood. The regenerated brick of the present invention uses construction waste as aggregate, which solves the problem of resource waste and realizes the recycling and reuse of resources. The present invention obtains high-strength regenerated bricks through reasonable material selection and raw material grading, which improves the efficiency of regenerated bricks. Long service life, expanding the application of recycled bricks.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a regenerated brick prepared from construction waste. Background technique [0002] Recycled brick is a kind of brick body prepared with construction waste as aggregate, partially or completely replacing natural aggregate, which realizes the recycling of resources, and is green and environmentally friendly, and has gradually attracted people's attention. However, the existing regenerated bricks have low strength, which makes the service life shorter and the scope of use more limited. Contents of the invention [0003] The object of the present invention is to provide a regenerated brick prepared from construction waste and its preparation method, which solves the problem of waste of construction waste resources on the one hand, and solves the problems of low strength and low service life of existing regenerated bricks on the other hand. [0004] The technical scheme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B20/02C04B18/26
CPCY02W30/91
Inventor 祝云华
Owner NEIJIANG NORMAL UNIV
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