CN112919859A - Fiber cement board and preparation method thereof - Google Patents
Fiber cement board and preparation method thereof Download PDFInfo
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- CN112919859A CN112919859A CN201911238506.5A CN201911238506A CN112919859A CN 112919859 A CN112919859 A CN 112919859A CN 201911238506 A CN201911238506 A CN 201911238506A CN 112919859 A CN112919859 A CN 112919859A
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- China
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- parts
- fiber
- cement board
- expanded perlite
- fiber cement
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a fiber cement board which comprises the following components in parts by weight: 100-120 parts of silicate cement, 30-40 parts of diatomite, 10-12 parts of fly ash, 15-20 parts of expanded perlite, 20-25 parts of wood fiber, 15-20 parts of glass fiber, 10-15 parts of light calcium powder, 5-8 parts of potassium chloride, 3-5 parts of inorganic aluminum salt waterproof agent, 3-5 parts of sodium lignosulfonate, 20-25 parts of 2-methyl-2-pentanol and 150 parts of water. The fiber cement board provided by the invention has the characteristics of high strength, good waterproof and fireproof performances and the like.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a fiber cement board and a preparation method thereof.
Background
The fiber cement board is a building material made up by using cement as basic material, adding natural fiber and auxiliary material and adopting the processes of forming, pressurizing and steam-curing, etc. as special treatment processes. Foreign materials are generally used for exterior wall sheathing of commercial or civil buildings. The fiber cement board is a mixed material and is formed by mixing sand, cement and plant fibers. The appearance types of the material at present comprise a transverse cross type, a wood grain type, a wall protection type, an egg-shaped surface type and the like. The fiber cement board is in a block shape and can be used for attic interlayers, wall lining boards, door eaves/eave wallboards or bathroom tile lower floor bottom boards. It can be used not only for exterior wall protection plate, but also as fire-proof plate. The existing fiber cement board generally only uses sawdust as fiber, is poor in strength, poor in waterproof performance and peculiar smell, is not beneficial to the health of people, and the waste fiber cement board cannot be recycled, so that unnecessary waste and construction waste are caused.
In view of the above, there is a need to provide a new fiber cement board to solve the above technical problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing the fiber cement board which has the characteristics of high strength, good waterproof and fireproof performance and the like.
In order to solve the problems, the technical scheme of the invention is as follows:
the fiber cement board comprises the following components in parts by weight:
100-120 parts of silicate cement, 30-40 parts of diatomite, 10-12 parts of fly ash, 15-20 parts of expanded perlite, 20-25 parts of wood fiber, 15-20 parts of glass fiber, 10-15 parts of light calcium powder, 5-8 parts of potassium chloride, 3-5 parts of inorganic aluminum salt waterproof agent, 3-5 parts of sodium lignosulfonate, 20-25 parts of 2-methyl-2-pentanol and 150 parts of water.
Further, the fiber cement board comprises the following components in parts by weight:
120 parts of Portland cement, 40 parts of diatomite, 12 parts of fly ash, 20 parts of expanded perlite, 25 parts of wood fiber, 20 parts of glass fiber, 15 parts of light calcium powder, 8 parts of potassium chloride, 5 parts of inorganic aluminum salt waterproof agent, 5 parts of sodium lignosulfonate, 25 parts of 2-methyl-2-pentanol and 150 parts of water.
Further, the bulk density of the expanded perlite is 100kg/m3。
Further, the wood fiber has a fiber length of 1-2mm and a bulk density of 20g/cm3。
Further, the fiber length of the glass fiber is 3-5 mm.
The invention also provides a preparation method of the fiber cement board, which comprises the following steps:
step S1, wood fiber and glass fiber are dispersed and ground into fiber pulp for standby;
step S2, mixing portland cement, diatomite, fly ash, expanded perlite, light calcium powder and potassium chloride, and adding part of water into the mixture to stir;
step S3, adding the fiber pulp obtained in the step S1 into the mixed pulp obtained in the step S2, adding an inorganic aluminum salt waterproof agent, sodium lignosulfonate, 2-methyl-2-pentanol and the balance of water, and uniformly stirring to obtain mixed slurry;
and step S4, introducing the mixed slurry obtained in the step S3 into a mold for extrusion molding, demolding and cutting, putting the molded cement board into an autoclave, and curing for 18-24 hours at the temperature of 160-180 ℃ and under the pressure of 3-5Mpa to obtain the fiber cement board.
The fiber cement board and the preparation method thereof provided by the invention have the beneficial effects that: by optimizing the formula components, the fiber cement board has higher strength and mechanical property, excellent waterproof property and good heat-insulating and flame-retardant properties.
Detailed Description
The following description of the present invention is provided to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention and to make the above objects, features and advantages of the present invention more comprehensible.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The fiber cement board comprises the following components in parts by weight:
100-120 parts of silicate cement, 30-40 parts of diatomite, 10-12 parts of fly ash, 15-20 parts of expanded perlite, 20-25 parts of wood fiber, 15-20 parts of glass fiber, 10-15 parts of light calcium powder, 5-8 parts of potassium chloride, 3-5 parts of inorganic aluminum salt waterproof agent, 3-5 parts of sodium lignosulfonate, 20-25 parts of 2-methyl-2-pentanol and 150 parts of water.
Wherein the bulk density of the expanded perlite is 100kg/m3；
The wood fiber has a fiber length of 1-2mm and a bulk density of 20g/cm3；
The fiber length of the glass fiber is 3-5 mm.
The invention also provides a preparation method of the fiber cement board, which comprises the following steps:
step S1, wood fiber and glass fiber are dispersed and ground into fiber pulp for standby;
step S2, mixing portland cement, diatomite, fly ash, expanded perlite, light calcium powder and potassium chloride, and adding part of water into the mixture to stir;
step S3, adding the fiber pulp obtained in the step S1 into the mixed pulp obtained in the step S2, adding an inorganic aluminum salt waterproof agent, sodium lignosulfonate, 2-methyl-2-pentanol and the balance of water, and uniformly stirring to obtain mixed slurry;
and step S4, introducing the mixed slurry obtained in the step S3 into a mold for extrusion molding, demolding and cutting, putting the molded cement board into an autoclave, and curing for 18-24 hours at the temperature of 160-180 ℃ and under the pressure of 3-5Mpa to obtain the fiber cement board.
The fiber cement board provided by the present invention will be described in detail below with reference to specific examples.
Example 1
The fiber cement board comprises the following components in parts by weight:
120 parts of Portland cement, 40 parts of diatomite, 12 parts of fly ash, 20 parts of expanded perlite, 25 parts of wood fiber, 20 parts of glass fiber, 15 parts of light calcium powder, 8 parts of potassium chloride, 5 parts of inorganic aluminum salt waterproof agent, 5 parts of sodium lignosulfonate, 25 parts of 2-methyl-2-pentanol and 150 parts of water.
Wherein the bulk density of the expanded perlite is 100kg/m3；
The wood fiber has a fiber length of 1-2mm and a bulk density of 20g/cm3；
The fiber length of the glass fiber is 3-5 mm.
Example 2
The fiber cement board comprises the following components in parts by weight:
100 parts of Portland cement, 30 parts of diatomite, 10 parts of fly ash, 15 parts of expanded perlite, 20 parts of wood fiber, 15 parts of glass fiber, 10 parts of light calcium powder, 5 parts of potassium chloride, 3 parts of inorganic aluminum salt waterproof agent, 3 parts of sodium lignosulfonate, 20 parts of 2-methyl-2-pentanol and 120 parts of water.
Wherein the bulk density of the expanded perlite is 100kg/m3；
The wood fiber has a fiber length of 1-2mm and a bulk density of 20g/cm3；
The fiber length of the glass fiber is 3-5 mm.
Example 3
The fiber cement board comprises the following components in parts by weight:
110 parts of Portland cement, 35 parts of diatomite, 11 parts of fly ash, 12 parts of expanded perlite, 23 parts of wood fiber, 18 parts of glass fiber, 12 parts of light calcium powder, 5 parts of potassium chloride, 4 parts of an inorganic aluminum salt waterproof agent, 4 parts of sodium lignosulfonate, 22 parts of 2-methyl-2-pentanol and 140 parts of water.
Wherein the bulk density of the expanded perlite is 100kg/m3；
The wood fiber has a fiber length of 1-2mm and a bulk density of 20g/cm3；
The fiber length of the glass fiber is 3-5 mm.
The fiber cement board and the preparation method thereof provided by the invention have the beneficial effects that: by optimizing the formula components, the fiber cement board has higher strength and mechanical property, excellent waterproof property and good heat-insulating and flame-retardant properties.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. Various changes, modifications, substitutions and alterations to these embodiments will occur to those skilled in the art without departing from the spirit and scope of the present invention.
Claims (6)
1. The fiber cement board is characterized by comprising the following components in parts by weight:
100-120 parts of silicate cement, 30-40 parts of diatomite, 10-12 parts of fly ash, 15-20 parts of expanded perlite, 20-25 parts of wood fiber, 15-20 parts of glass fiber, 10-15 parts of light calcium powder, 5-8 parts of potassium chloride, 3-5 parts of inorganic aluminum salt waterproof agent, 3-5 parts of sodium lignosulfonate, 20-25 parts of 2-methyl-2-pentanol and 150 parts of water.
2. The fiber cement board of claim 1, comprising the following components in parts by weight:
120 parts of Portland cement, 40 parts of diatomite, 12 parts of fly ash, 20 parts of expanded perlite, 25 parts of wood fiber, 20 parts of glass fiber, 15 parts of light calcium powder, 8 parts of potassium chloride, 5 parts of inorganic aluminum salt waterproof agent, 5 parts of sodium lignosulfonate, 25 parts of 2-methyl-2-pentanol and 150 parts of water.
3. The fiber cement board of claim 1, wherein the bulk density of the expanded perlite is 100kg/m3。
4. The fiber cement board of claim 1, wherein the wood fiber has a fiber length of 1 to 2mm and a bulk density of 20g/cm3。
5. The fiber cement sheet according to claim 1, wherein the glass fiber has a fiber length of 3 to 5 mm.
6. A method of making a fiber cement board according to any of claims 1-5, comprising the steps of:
step S1, wood fiber and glass fiber are dispersed and ground into fiber pulp for standby;
step S2, mixing portland cement, diatomite, fly ash, expanded perlite, light calcium powder and potassium chloride, and adding part of water into the mixture to stir;
step S3, adding the fiber pulp obtained in the step S1 into the mixed pulp obtained in the step S2, adding an inorganic aluminum salt waterproof agent, sodium lignosulfonate, 2-methyl-2-pentanol and the balance of water, and uniformly stirring to obtain mixed slurry;
and step S4, introducing the mixed slurry obtained in the step S3 into a mold for extrusion molding, demolding and cutting, putting the molded cement board into an autoclave, and curing for 18-24 hours at the temperature of 160-180 ℃ and under the pressure of 3-5Mpa to obtain the fiber cement board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238506.5A CN112919859A (en) | 2019-12-06 | 2019-12-06 | Fiber cement board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911238506.5A CN112919859A (en) | 2019-12-06 | 2019-12-06 | Fiber cement board and preparation method thereof |
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| Publication Number | Publication Date |
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| CN112919859A true CN112919859A (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911238506.5A Withdrawn CN112919859A (en) | 2019-12-06 | 2019-12-06 | Fiber cement board and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070246864A1 (en) * | 2006-04-25 | 2007-10-25 | Nichiha Co., Ltd. | Fiber reinforced cement board and manufacturing process |
| CN105130379A (en) * | 2015-07-10 | 2015-12-09 | 苏州科淼新材料有限公司 | Baking-free light weight and heat insulation building composite material for exterior walls |
| CN109231905A (en) * | 2018-09-05 | 2019-01-18 | 湖南省优邦新材料有限公司 | A kind of composite foamed cement insulation board |
| CN109608108A (en) * | 2018-12-29 | 2019-04-12 | 安徽华城兴建材科技有限公司 | A kind of Novel fiber cement board and its preparation process |
| CN110218047A (en) * | 2019-06-11 | 2019-09-10 | 安徽省中坤元新型建材有限公司 | A kind of preparation method of compound fibre cement board |
-
2019
- 2019-12-06 CN CN201911238506.5A patent/CN112919859A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070246864A1 (en) * | 2006-04-25 | 2007-10-25 | Nichiha Co., Ltd. | Fiber reinforced cement board and manufacturing process |
| CN105130379A (en) * | 2015-07-10 | 2015-12-09 | 苏州科淼新材料有限公司 | Baking-free light weight and heat insulation building composite material for exterior walls |
| CN109231905A (en) * | 2018-09-05 | 2019-01-18 | 湖南省优邦新材料有限公司 | A kind of composite foamed cement insulation board |
| CN109608108A (en) * | 2018-12-29 | 2019-04-12 | 安徽华城兴建材科技有限公司 | A kind of Novel fiber cement board and its preparation process |
| CN110218047A (en) * | 2019-06-11 | 2019-09-10 | 安徽省中坤元新型建材有限公司 | A kind of preparation method of compound fibre cement board |
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Application publication date: 20210608 |
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