Concrete porous energy-saving brick and preparation method thereof

An energy-saving brick and concrete technology, applied in the field of building materials, can solve the problems of low strength, insufficient heat preservation ability, poor anti-cracking ability, etc., to improve crack resistance, control plastic shrinkage and temperature changes, and reduce dry shrinkage deformation. Effect

Inactive Publication Date: 2018-09-28
HEFEI OAKS NEW BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are many kinds of concrete porous bricks on the market, but there are common problems such as low strength, insufficient heat preservation capacity, and poor crack resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The concrete porous energy-saving brick of this embodiment is made of the following raw materials in parts by weight: 10 parts of Portland cement, 30 parts of coal gangue powder, 5 parts of slag powder, 4 parts of modified plant straw powder, 2 parts of fly ash, 1 part of vitrified microbeads, 2 parts of fiber, 1 part of dispersible latex powder, 0.5 part of cellulose ether, 0.3 part of polymer binder, 0.2 part of pore-forming agent, 0.5 part of water reducer and 25 parts of deionized water .

[0032] Wherein, the slag powder is an ultrafine powder obtained by grinding blast furnace slag, and its specific surface area is 350-400m 2 / kg; the slag powder contains more than 95% of vitreous body, dicalcium silicate, calcite feldspar and wollastonite.

[0033] Wherein, the modified plant straw powder is prepared by the following method: first soak the plant straw powder with 10-15% hydrogen peroxide for 40 minutes, then wash it with distilled water, dehydrate, and add alumi...

Embodiment 2

[0044] The concrete porous energy-saving brick of this embodiment is made of the following raw materials in parts by weight: 20 parts of Portland cement, 50 parts of coal gangue powder, 10 parts of slag powder, 8 parts of modified plant straw powder, 4 parts of fly ash, 3 parts of vitrified microbeads, 4 parts of fiber, 3 parts of dispersible latex powder, 1.5 parts of cellulose ether, 0.7 parts of polymer binder, 0.6 parts of pore-forming agent, 2 parts of water reducing agent and 35 parts of deionized water .

[0045]Wherein, the slag powder is an ultrafine powder obtained by grinding blast furnace slag, and its specific surface area is 350-400m 2 / kg; the slag powder contains more than 95% of vitreous body, dicalcium silicate, calcite feldspar and wollastonite.

[0046] Wherein, the modified plant straw powder is prepared by the following method: first soak the plant straw powder with 10-15% hydrogen peroxide for 60 minutes, then wash with distilled water, dehydrate, and a...

Embodiment 3

[0057] The concrete porous energy-saving brick of this embodiment is made of the following raw materials in parts by weight: 15 parts of Portland cement, 40 parts of coal gangue powder, 7.5 parts of slag powder, 6 parts of modified plant straw powder, 3 parts of fly ash, 2 parts of vitrified microbeads, 3 parts of fiber, 2 parts of dispersible latex powder, 1 part of cellulose ether, 0.5 parts of binder, 0.4 parts of pore forming agent, 1.2 parts of water reducing agent and 30 parts of deionized water.

[0058] Wherein, the slag powder is an ultrafine powder obtained by grinding blast furnace slag, and its specific surface area is 350-400m 2 / kg; the slag powder contains more than 95% of vitreous body, dicalcium silicate, calcite feldspar and wollastonite.

[0059] Wherein, the modified plant straw powder is prepared by the following method: first soak the plant straw powder with 10-15% hydrogen peroxide for 50 minutes, then wash it with distilled water, dehydrate, and add alu...

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Abstract

The invention discloses a concrete porous energy-saving brick and a preparation method thereof. The concrete porous energy-saving brick is prepared from, by weight, 10-20 parts of silicate cement, 30-50 parts of colliery powder, 5-10 parts of slag powder, 4-8 parts of modified plant straw powder, 2-4 parts of fly ash, 1-3 parts of glazed hollow beads, 2-4 parts of fibers, 1-3 parts of dispersiblelatex powder, 0.5-1.5 parts of cellulose ether, 0.3-0.7 part of macromolecule binding agents, 0.2-0.6 part of pore forming agents, 0.5-2 parts of water reducing agents and 25-35 parts of deionized water. The concrete porous energy-saving brick is light in weight, high in strength, good in heat insulation performance, excellent in crack resistance, simple in preparation method and easy to implementand has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a porous concrete energy-saving brick and a preparation method thereof. Background technique [0002] Concrete porous brick is a kind of concrete product with many rows of small holes made of cement as cementing material, mixed with sand, stone, etc., after adding water, forming and curing; it is a small hollow block after ordinary and light aggregate concrete. Another new variety of wall materials. Concrete porous brick has the characteristics of low production energy consumption, saving soil and waste, convenient construction, light weight, high strength, good heat preservation effect, durability, small shrinkage deformation, and regular appearance. It is an ideal material to replace fired clay bricks. [0003] Concrete porous bricks have the characteristics of both clay bricks and small concrete blocks. The appearance characteristics belong to sintered porous brick...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/00C04B38/08C04B111/20C04B111/34C04B111/40
CPCC04B28/04C04B2111/20C04B2111/343C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B18/12C04B18/141C04B18/24C04B18/08C04B14/22C04B24/383C04B22/068C04B24/40C04B24/16C04B14/202C04B14/42C04B24/26C04B14/022C04B38/08C04B2103/0057C04B2103/302C04B38/00C04B14/46C04B24/2641C04B14/28C04B14/48C04B18/26
Inventor 曹智远
Owner HEFEI OAKS NEW BUILDING MATERIAL CO LTD
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