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Regeneration brick prepared from construction waste and preparation method of brick

A technology for construction waste and recycled bricks, applied in the field of building materials, can solve the problems of low service life, low strength of recycled bricks, waste of construction waste resources, etc., and achieve the effect of improving service life, realizing recycling and reusing, and solving waste of resources.

Inactive Publication Date: 2019-05-21
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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  • Regeneration brick prepared from construction waste and preparation method of brick

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 regeneration brick prepared from construction waste and a preparation method of the brick, and belongs to the technical field of construction materials. The regeneration brick is prepared from, by weight, 100 parts of construction waste aggregate, 10-20 parts of kaolin, 30-50 parts of pulverized fuel ash, 1-5 parts of a water reducing agent, 1-5 parts of an early strengthagent, 1-5 parts of an antifreezing agent and 15-25 parts of water; the construction waste aggregate is prepared from, by weight, 50-60% of heavy aggregate, 30-40% of light aggregate and 5-10% of wood fibers; the heavy aggregate comes from waste concrete, waste bricks and tiles and waste stone, the light aggregate comes from waste ceramic and waste glass, and the wood fibers come from waste wood.The regeneration brick adopts the construction waste as the aggregate, the problem of resource waste is solved, and resource recycling is achieved; the regeneration brick with high strength is obtained through reasonable material selection and raw material grading, the service life of the regeneration brick is prolonged, and the application of the regeneration brick is expanded.

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 Applications(China)
IPC IPC(8): C04B28/00C04B20/02C04B18/26
CPCY02W30/91
Inventor 祝云华
Owner NEIJIANG NORMAL UNIV
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