CN109180107A - Fibre cement product and its preparation method and application - Google Patents
Fibre cement product and its preparation method and application Download PDFInfo
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- CN109180107A CN109180107A CN201811196516.2A CN201811196516A CN109180107A CN 109180107 A CN109180107 A CN 109180107A CN 201811196516 A CN201811196516 A CN 201811196516A CN 109180107 A CN109180107 A CN 109180107A
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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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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention relates to a kind of fibre cement products and its preparation method and application.Based on parts by weight, raw material includes: 20 parts~30 parts of cement, 20 parts~30 parts of flyash, 10 parts~15 parts of quartz, 4 parts~8 parts of calcium hydroxide, 1 part~2.5 parts of basalt fibre, 4 parts~6 parts of paper pulp, 1.5 parts~2.5 parts of sepiolite, 5 parts~7 parts of wollastonite, 0.5 part~1 part of sodium modification montmorillonite and 4 parts~6 parts of zinc oxide to the fibre cement product.The apparent density of above-mentioned fibre cement product is larger, compactness is preferable, flexural strength is higher.
Description
Technical field
The present invention relates to building material technical fields, more particularly to a kind of fibre cement product and preparation method thereof and answer
With.
Background technique
In recent years, the fast development of Building Trade in China, it is very huge for the demand of fibre cement product.Wherein, fine
Dimension cement plate can be widely used as indoor and outdoor ornament materials, and especially high-density fiber cement plate is because of its energy
It enough carries out dry construction and is gradually widely used in outdoor curtain wall system.
Currently, fibre cement plate producing process copy follow the example of, slurry flowing process and die pressing.Wherein, slurry flowing process is suitable for industry
Metaplasia produces fiber cement board, and yield is higher, and production cost is relatively low.It is fine in the technique of slurry flowing process production fiber cement board
Substance is tieed up after forced action type loosening apparatus is loosened, is sent into pump type beater, is sufficiently mixed after addition cement and slurry is uniformly made.
After slurry enters bucket type storage pulp grinder and is directly entered the head box of stream slurry laminator by blowing mouth, uniformly on paving slurry to felt.Through
The thin bed of material after vacuum dehydration is wound material base on forming tube, pulls base automatically when reaching specific thickness；Through longitudinal sectional, crosscutting
Afterwards, slab forms stacking by vacuum forming machine；After being conserved, being demoulded again, as fiber cement board.
Currently, raw materials are mainly cement in the technique of slurry flowing process production fiber cement board, the volume of cement is up to
60%~80%, and the production of cement needs to consume higher energy, production cost is higher, and can generate in production process more
Polluter, to the seriously polluted of environment.Some researchs are by being added trade waste, to reduce the dosage of cement, in turn
The cost of fiber cement board is reduced, realizes recycling for industrial waste gas object.But part is substituted by the way that trade waste is added
The apparent density of the fiber cement board of manufacture of cement is smaller, compactness is poor, flexural strength is decreased obviously.
Summary of the invention
Based on this, it is necessary to provide that a kind of apparent density is larger, compactness is preferable, the higher fiber water of flexural strength is clay
Product and its preparation method and application.
A kind of fibre cement product, based on parts by weight, raw material includes:
Flyash is added in above-mentioned fibre cement product can largely reduce the dosage of cement, and flyash, quartz, oxidation
Zinc and wollastonite have excellent filling capacity, cooperate and can reduce the dry contraction of fibre cement product；Calcium hydroxide is in plate
Gel is formed inside material, can also reduce dry contraction；The calcium hydroxide and calcium hydroxide that quartz can be generated with hydrated cementitious occur
Reaction generates a large amount of cavernous hydrated calcium silicate gels, to increase fibre cement product bending resistance flexural strength, meanwhile, quartz
The bond stress that can be improved fibrous matter and cement matrix significantly improves the fiber-reinforcing effect of fibre cement product；Sodium changes
Property montmorillonite and fibrous sepiolite addition can reduce the floating of flyash, quartz etc., increase the viscous of fibre cement product
Power is tied, fibre cement product lamination is reduced；Basalt fibre has the function of activeness and quietness as natural rock material,
Significantly improve the bending resistance fracture resistance of fibre cement product.Each component collaboration is made in the fibre cement product of above embodiment
With, it can be improved apparent density, compactness, flexural strength, impact resistance and the waterproofness of fibre cement product, meanwhile, fine coal
The consumption of cement can be greatly lowered in the addition of ash, realize that the high resource of trade waste recycles.Experiment proves that
Above-mentioned fibre cement product meets the requirement in JG/T396-2012 product professional standard to high-density fiber cement products, by force
Degree reaches the index of III level plate, and the volume highest of flyash can replace 50% cement mixing content.
The flyash is level-one flyash or second class powered coal ash in one of the embodiments,.
The mass percentage of the silica in the quartz is greater than or equal to 95% in one of the embodiments,；
And/or
The partial size of the quartz is 160 mesh~200 mesh.
In one of the embodiments, it is characterized in that, the whiteness of the calcium hydroxide is greater than or equal to 90%.
In one of the embodiments, the length of the basalt fibre be 5mm~12mm, the basalt fibre it is straight
Diameter is 0.015mm~0.02mm.
The sepiolite is fibrous sepiolite in one of the embodiments,；And/or
The wollastonite is threadiness, and the fibre length of the wollastonite is greater than or equal to 2mm.
The partial size of the sodium modification montmorillonite is 800 mesh~1200 mesh in one of the embodiments,.
The partial size of the zinc oxide is 800 mesh~1200 mesh in one of the embodiments,.
Application of the described in any item fibre cement products of above-described embodiment in building curtain wall production.
The preparation method of the described in any item fibre cement products of above-described embodiment, includes the following steps:
The paper pulp, the sepiolite, the calcium hydroxide, the quartz, the wollastonite, the sodium modification are covered de-
Stone, the flyash, the zinc oxide, the basalt fibre and the cement mixing, mashing, obtain slurry；And
By the slurry successively through molding, drying and maintenance, fibre cement product is obtained.
Specific embodiment
It to facilitate the understanding of the present invention, below will be to invention is more fully described.It is shown below of the invention
Preferred embodiment.But the invention can be realized in many different forms, however it is not limited to implementation described herein
Example.It is made the disclosure of the present invention more thorough and comprehensive on the contrary, purpose of providing these embodiments is.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
The fibre cement product of one embodiment, based on parts by weight, raw material includes:
Flyash is added in above-mentioned fibre cement product can largely reduce the dosage of cement, and flyash, quartz, oxidation
Zinc and wollastonite have excellent filling capacity, cooperate and can reduce the dry contraction of fibre cement product；Calcium hydroxide is in plate
Gel is formed inside material, can also reduce dry contraction；The calcium hydroxide and calcium hydroxide that quartz can be generated with hydrated cementitious occur
Reaction generates a large amount of cavernous hydrated calcium silicate gels, to increase fibre cement product bending resistance flexural strength, meanwhile, quartz
The bond stress that can be improved fibrous matter and cement matrix significantly improves the fiber-reinforcing effect of fibre cement product；Sodium changes
Property montmorillonite and fibrous sepiolite addition can reduce the floating of flyash, quartz etc., increase the viscous of fibre cement product
Power is tied, fibre cement product lamination is reduced；Basalt fibre has the function of activeness and quietness as natural rock material,
Significantly improve the bending resistance fracture resistance of fibre cement product.Each component collaboration is made in the fibre cement product of above embodiment
With, it can be improved apparent density, compactness, flexural strength, impact resistance and the waterproofness of fibre cement product, meanwhile, fine coal
The consumption of cement can be greatly lowered in the addition of ash, realize that the high resource of trade waste recycles.Experiment proves that
Above-mentioned fibre cement product meets the requirement in JG/T396-2012 product professional standard to high-density fiber cement products, by force
Degree reaches the index of III level plate, and the volume highest of flyash can replace 50% cement mixing content.
Cement is powdery hydraulicity inorganic coagulation material.Cement plus water stirring after at slurry, can harden in air or
Person is preferably hardened in water, and can the materials such as sand, stone are cemented together securely.
Cement is selected from ordinary portland cement, Portland pozzolana cement and slag silicon in one of the embodiments,
At least one of acid salt cement.Optionally, cement 42.5#Ordinary portland cement.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 24 parts~26 parts of water
Mud.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 20 parts, 22 parts, 24 parts, 26 parts,
28 parts or 30 parts of cement.
Flyash is the fine ash that catching is got off from the flue gas after coal combustion, and flyash is the main solid of coal-burning power plant's discharge
Body waste belongs to one kind of trade waste.Contain a large amount of oxide in flyash, oxide includes SiO2、Al2O3、FeO、
Fe2O3、CaO、TiO2Deng.Flyash has excellent filling capacity, and flyash is added in fibre cement product, can largely reduce
The dosage of cement to realize the recycling of trade waste, and reduces the production cost of fibre cement product；Meanwhile fine coal
Ash can reduce the dry of fibre cement product and shrink.
Flyash is level-one flyash or second class powered coal ash in one of the embodiments,.Wherein, according to GB/T1596-
2017 standards, which are divided, is divided into level-one flyash or second class powered coal ash for flyash.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 24 parts~26 parts of powder
Coal ash.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 20 parts, 22 parts, 24 parts, 26
Part, the flyash of 28 parts or 30 parts.
Quartz has high pozzolanic activity, belongs to cementitious material, contains a large amount of silica and a small amount of Al2O3With
Fe3O4Equal substances.The calcium hydroxide that silica flour can be generated with hydrated cementitious reacts, and generates a large amount of cavernous aquation silicon
Sour calcium gel, to compensate the Rupture strength loss of fibre cement product caused by a large amount of flyash mixes.Meanwhile quartzy energy
The bond stress for enough improving fibrous material and cement in raw material, improves the fiber-reinforcing effect of fibre cement product.Quartz also has
There is excellent filling capacity, the dry of fibre cement product can be reduced significantly and shunk.
The mass percentage of silica is greater than or equal to 95% in quartz in one of the embodiments,.
Quartzy partial size is 160 mesh~200 mesh in one of the embodiments,.It should be noted that referred to herein as partial size
It is such meaning below more than 160 mesh, 200 mesh quartz below.Quartzy partial size is in one of the embodiments,
160 mesh~180 mesh.Quartzy partial size is 180 mesh~200 mesh in one of the embodiments,.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 12 parts~14 parts of stone
English.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 10 parts, 11 parts, 12 parts, 13 parts,
14 parts or 15 parts of quartz.
Calcium hydroxide is a kind of white powdery solids.Calcium hydroxide can react with quartz generates cavernous spray silicon
Sour calcium gel, with the flexural strength and impact resistance of reinforcing fiber cement products.Meanwhile the addition of calcium hydroxide also can reduce fibre
The dry of cement products is tieed up to shrink.
The whiteness of calcium hydroxide is greater than or equal to 90% in one of the embodiments,.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 5 parts~7 parts of niter
Ash.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 4 parts, 5 parts, 6 parts, 7 parts or 8 parts
Calcium hydroxide.
Basalt fibre is a kind of novel inorganic environment-friendly and green high performance fibre material, is by silica, aluminium oxide, oxygen
Change the basalt building stones of the oxides such as calcium, magnesia, iron oxide and titanium dioxide composition after high-temperature fusion, it is quick by bushing
Continuous fiber made of drawing.The intensity of basalt fibre is high, has the function of activeness and quietness, also have be electrically insulated, be corrosion-resistant,
A variety of excellent properties such as high temperature resistant can increase the toughness, intensity and bending resistance fracture resistance of fibre cement product, reach higher
Mechanical property.Meanwhile the waste that the production technology of basalt fibre generates is few, environmental pollution is small, and basalt fibre is useless
It can directly degrade in the environment after abandoning, without any harm.
The length of basalt fibre is 5mm~12mm in one of the embodiments, and the diameter of basalt fibre is
0.015mm~0.02mm.In one of the embodiments, the length of basalt fibre be 6mm~10mm, basalt fibre it is straight
Diameter is 0.015mm~0.018mm.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 1.5 parts~2 parts profound
Military rock fiber.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 1 part, 1.5 parts, 2 parts
Or 2.5 parts of basalt fibre.
Paper pulp is using plant fiber as raw material, through fibrous material made from mechanical or chemistry processing method.Paper pulp
As a kind of reinforcing material, it can be improved the performances such as intensity, flexibility, fold resistance, the impact resistance of fibre cement product.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 4.5 parts~5.5 parts
Paper pulp.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 4 parts, 4.5 parts, 5 parts, 5.5
Part or 6 parts of paper pulp.
Sepiolite is a kind of mineral, has preferable absorption property, rheological property and catalytic performance.
Sepiolite is fibrous sepiolite in one of the embodiments,.Fibrous sepiolite is rich in magnesium elements, is long fine
The crystalline texture for tieing up shape, is capable of the toughness and anti-bending strength of reinforcing fiber cement products；Meanwhile fibrous sepiolite is with higher
Specific surface area, can absorb water rapidly dissolution thickening, can quickly improve the outstanding of fibre cement product system in the production process
Buoyancy and thermal stability.It should be noted that sepiolite is not limited to fibrous sepiolite, it can also be other sepiolites, example
Such as clay shape sepiolite.Clay shape sepiolite is rich in aluminium element, and microstructure is also in threadiness, can also increase to a certain extent
The toughness and anti-bending strength of strong fibre cement product.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 1.75 parts~2.25 parts
Sepiolite.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 1.5 parts, 1.75 parts, 2
Part, the sepiolites of 2.25 parts or 2.5 parts.
Wollastonite belongs to single chain silicate mineral, has excellent filling capacity, can significantly reduce fibre cement product
Dry shrink；Suitable wollastonite can significantly improve the dosage of flyash simultaneously, and then utilize industry to large extent
Waste.
Wollastonite is needle threadiness in one of the embodiments,.Further, wollastonite is level-one raphioid fiber structure
Or second level raphioid fiber structure.It should be noted that wollastonite herein is divided according to JC/T535-2007 standard.
The draw ratio of wollastonite is 8:1~10:1 in one of the embodiments,.Further, the length of wollastonite
For 2mm~3mm.It should be noted that wollastonite herein is needle fibrous wollastonite.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 5.5 parts~6.5 parts
Wollastonite.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 5 parts, 5.5 parts, 6 parts,
6.5 parts or 7 parts of wollastonite.
In one of the embodiments, in the raw material of fibre cement product, the mass ratio of wollastonite and flyash be 1:5~
1:3.Above two mass ratio is set to this range, the additive amount of flyash can be further increased, and can guarantee fibre
Tie up the mechanical property of cement products.Further, in the raw material of fibre cement product, the mass ratio of wollastonite and flyash is 1:
4~1:3.
Sodium sodium modification montmorillonite is that sodium carbonate is added into calcium-base bentonite to form with sodium modification.Sodium modification covers
The dissolution dispersibility of de- stone in water is preferable, can increase the viscosity of fibre cement product slurry in the production process, reduces
The floating of the flours such as flyash improves the bonding force of slurry, reduces layering of fibre cement product during base.Sodium
Changing sodium modification montmorillonite can quickly absorb water dispersion, the thixotropy of the slurry of raising fibre cement product in the production process,
Thermal stability and adhesive property.
The partial size of sodium modification montmorillonite is 800 mesh~1200 mesh in one of the embodiments,.It should be noted that
It is such meaning below referred to herein as partial size more than 800 mesh, 1200 mesh sodium modification montmorillonite below.Wherein one
In a embodiment, the partial size of sodium modification montmorillonite is 800 mesh~1000 mesh.Sodium modification covers in one of the embodiments,
The partial size of de- stone is 1000 mesh~1200 mesh.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 0.7 part~0.9 part
Sodium modification montmorillonite.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 0.5 part,
0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part of sodium modification montmorillonite.
Zinc oxide is the oxide of zinc, has preferably filling capacity, is commonly applied in adhesive or sealant.
Zinc oxide is powdered in one of the embodiments,.The filling capacity of powdered zinc oxide is preferable, Neng Gouxian
Writing, which reduces the dry of fibre cement product, shrinks.
The partial size of zinc oxide is 800 mesh~1200 mesh in one of the embodiments,.It should be noted that referred to herein as
Partial size is such meaning below more than 800 mesh, 1200 mesh zinc oxide below.Zinc oxide in one of the embodiments,
Partial size be 800 mesh~1000 mesh.The partial size of zinc oxide is 1000 mesh~1200 mesh in one of the embodiments,.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 4.5 parts~5.5 parts
Zinc oxide.In wherein some embodiments, based on parts by weight, the raw material of fibre cement product includes 4 parts, 4.5 parts, 5 parts,
5.5 parts or 6 parts of zinc oxide.
In one of the embodiments, based on parts by weight, the raw material of fibre cement product includes 25 parts~30 parts of water
Mud, 25 parts~30 parts of flyash, 12 parts~14 parts of quartz, 5 parts~7 parts of calcium hydroxide, 1.5 parts~2 parts of basalt are fine
Dimension, 4.5 parts~5.5 parts of paper pulp, 1.75 parts~2.25 parts of fibrous sepiolite, 5.5 parts~6.5 parts of wollastonite, 0.7 part
~0.9 part of sodium sodium modification montmorillonite and 4.5 parts~5.5 parts of zinc oxide.
Fibre cement product is fiber cement board in one of the embodiments,.Further, fibre cement product is height
Density fiber cement plate.
The fibre cement product of one embodiment at least has the advantages that
(1) each component acts synergistically in above-mentioned fibre cement product, can be improved the apparent density of fibre cement product, causes
Close property, flexural strength, impact resistance and waterproofness, meanwhile, the consumption of cement can be greatly reduced in the addition of flyash, reach pair
The high resource of trade waste recycles, other raw materials are easy to get, so that above-mentioned fibre cement product is produced into
This lower, excellent in mechanical performance, can be applied in the production of building curtain wall.Experiment proves that above-mentioned fibre cement product
Meet the requirement in JG/T 396-2012 standard to high-density fiber cement products, intensity reaches the index of III level plate, powder
The volume highest of coal ash can replace 50% cement mixing content.
(2) in above-mentioned fibre cement product, flyash, quartz, oxide powder and zinc and wollastonite have excellent filling capacity, no
These substances of same partial size cooperate, and can reduce the dry of fibre cement product significantly and shrink.
The preparation method of the fibre cement product of one embodiment, includes the following steps S110~S120:
S110, by paper pulp, sepiolite, calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide, profound
Military rock fiber and cement mixing, mashing, obtain slurry.
In one of the embodiments, by paper pulp, sepiolite, calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, powder
The step of coal ash, zinc oxide, basalt fibre and cement mixing are beaten, obtain slurry specifically: by paper pulp, sepiolite, niter
Ash, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide, basalt fibre, cement and water are added in beater
Stirring is slurried, and obtains slurry.
It further include that paper pulp and sepiolite are subjected to pine in loosening apparatus respectively in one of the embodiments, before S110
Solve step.Further, the time is loosened as 20min~30min.Further, the sea by the paper pulp after loosening and after loosening
Afrodite is added in beater, adds calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide and the Black Warrior
Rock fiber is eventually adding cement and water, and stirring obtains slurry.The addition of paper pulp, sepiolite and calcium hydroxide guarantees slurry system tool
There are certain viscosity and mobility, improves the mixtures slurries such as quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide
The viscosity and stability of system, with guarantee basalt fibre be added after can rapidly it is evenly dispersed, be eventually adding cement and water be rapid
Reaction obtains molding slurry.
Mixing time is 15min~20min in one of the embodiments, and the solid masses percentage composition in slurry is
15%~20%.
S120, by slurry successively after molding, drying and maintenance, obtain fibre cement product.
Molding mode is stream slurry molding in one of the embodiments,.By using stream slurry molding, production can be improved
Efficiency.It should be noted that molding mode be not limited to it is above-mentioned point out mode, can also be other molding modes, such as: copy and take
Moulding process.
Dry mode is dry for vacuum dehydration in one of the embodiments,.
The mode conserved in one of the embodiments, is steam press maintenance.Under steam press maintenance, the vitreum net of flyash
The structure of network is easier to be destroyed, active A12O3And SiO2It more easily dissolves out, accelerates transfer and the hydrated product of mineral structure
Formation.Wherein, steam-cured pressure is at 90 DEG C~100 DEG C of 1.0MPa~1.2MPa, temperature.Steam pressure process include increasing temperature and pressure 3h~
4h, constant temperature and pressure 10h~12h, cool down 3h~4h, prevents because the variation of overrunning of pressure and temperature leads to plate cracking, layering.
The preparation method simple process of the fibre cement product of above embodiment, lower production costs, yield is higher, energy
The fibre cement product for enough producing excellent in mechanical performance, is suitable for industrialized production.
The following are specific embodiment parts.
In following embodiment, if not otherwise specified, number is parts by weight；Pulp density is the matter of solid in slurry
Measure percentage composition；The thickness of fiber cement board is 10mm, and width is 1220mm, and length is 2440mm；Fiber cement board
The parts by weight of each raw material see Table 1 for details.
Embodiment 1
The preparation process of the fiber cement board of the present embodiment is as follows:
(1) paper pulp is weighed, sepiolite is loosened in loosening apparatus 30min respectively, the sea by the paper pulp after loosening and after loosening
Afrodite is put into beater, adds calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide, basalt
Fiber, is eventually adding cement and water, and stirring 15min obtains slurry, wherein flyash is level-one flyash；Quartz partial size be
160 mesh~170 mesh, quartz in silica mass percentage be 95%；The whiteness of calcium hydroxide is 90%；Basalt fibre
Length be 5mm~8mm, the diameter of basalt fibre is 0.015mm~0.02mm；Wollastonite is level-one raphioid fiber structure,
And fibre length is 2mm~3mm, the draw ratio of wollastonite is 8:1；The partial size of sodium modification montmorillonite is 800 mesh~1000 mesh；
Sepiolite is fibrous sepiolite；The partial size of zinc oxide is 800 mesh~1000 mesh；Cement is 42.5# portland cement.
(2) after slurry successively being flowed slurry molding, vacuum dehydration, steam press maintenance, fiber cement board is obtained.
Embodiment 2
The preparation process of the fiber cement board of the present embodiment is as follows:
(1) paper pulp is weighed, sepiolite is loosened in loosening apparatus 30min respectively, the sea by the paper pulp after loosening and after loosening
Afrodite is put into beater, adds calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide, basalt
Fiber, is eventually adding cement and water, and stirring 20min obtains slurry, wherein flyash is second class powered coal ash；Quartz partial size be
170 mesh~180 mesh, quartz in silica mass percentage be 96%；The whiteness of calcium hydroxide is 94%；Basalt fibre
Length be 10mm~12mm, the diameter of basalt fibre is 0.015mm~0.02mm；Wollastonite is level-one raphioid fiber knot
Structure, and fibre length is 2mm~3mm, the draw ratio of wollastonite is 8:1；The partial size of sodium modification montmorillonite be 1000 mesh~
1200 mesh；Sepiolite is fibrous sepiolite；The partial size of zinc oxide is 1000 mesh~1200 mesh；Cement is 42.5# silicate cement
Mud.
(2) after slurry successively being flowed slurry molding, vacuum dehydration, steam press maintenance, fiber cement board is obtained.
Embodiment 3
The preparation process of the fiber cement board of the present embodiment is as follows:
(1) paper pulp is weighed, sepiolite is loosened in loosening apparatus 25min respectively, the sea by the paper pulp after loosening and after loosening
Afrodite is put into beater, adds calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide, basalt
Fiber, is eventually adding cement and water, and stirring 20min obtains slurry, wherein flyash is level-one flyash；Quartz partial size be
160 mesh~180 mesh, quartz in silica mass percentage be 97%；The whiteness of calcium hydroxide is 95%；Basalt fibre
Length be 8mm~10mm, the diameter of basalt fibre is 0.015mm~0.02mm；Wollastonite is second level raphioid fiber structure,
And fibre length is 2mm~3mm, the draw ratio of wollastonite is 8:1；The partial size of sodium modification montmorillonite is 800 mesh~1000 mesh；
Sepiolite is fibrous sepiolite；The partial size of zinc oxide is 800 mesh~1000 mesh；Cement is 42.5# portland cement.
(2) after slurry successively being flowed slurry molding, vacuum dehydration, steam press maintenance, fiber cement board is obtained.
Embodiment 4
The preparation process of the fiber cement board of the present embodiment is as follows:
(1) paper pulp is weighed, sepiolite is loosened in loosening apparatus 30min respectively, the sea by the paper pulp after loosening and after loosening
Afrodite is put into beater, adds calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide, basalt
Fiber, is eventually adding cement and water, and stirring 15min obtains slurry, wherein flyash is level-one flyash；Quartz partial size be
180 mesh~200 mesh, quartz in silica mass percentage be 98%；The whiteness of calcium hydroxide is 100%；Basalt is fine
The length of dimension is 5mm~8mm, and the diameter of basalt fibre is 0.015mm~0.02mm；Wollastonite is level-one raphioid fiber knot
Structure, and fibre length is 2mm~3mm, the draw ratio of wollastonite is 10:1；The partial size of sodium modification montmorillonite be 1000 mesh~
1200 mesh；Sepiolite is fibrous sepiolite；The partial size of zinc oxide is 800 mesh~1000 mesh；Cement is 42.5# silicate cement
Mud.
(2) after slurry successively being flowed slurry molding, vacuum dehydration, steam press maintenance, fiber cement board is obtained.
Embodiment 5
The preparation process of the fiber cement board of the present embodiment is as follows:
(1) paper pulp is weighed, sepiolite is loosened in loosening apparatus 30min respectively, the sea by the paper pulp after loosening and after loosening
Afrodite is put into beater, adds calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide, basalt
Fiber, is eventually adding cement and water, and stirring 20min obtains slurry, wherein flyash is level-one flyash；Quartz partial size be
180 mesh~200 mesh, quartz in silica mass percentage be 96%；The whiteness of calcium hydroxide is 97%；Basalt fibre
Length be 5mm~8mm, the diameter of basalt fibre is 0.015mm~0.02mm；Wollastonite is level-one raphioid fiber structure,
And fibre length is 2mm~3mm, the draw ratio of wollastonite is 9:1；800 mesh of partial size~1000 mesh of sodium modification montmorillonite；Sea
Afrodite is fibrous sepiolite；The partial size of zinc oxide is 1000 mesh~1200 mesh；Cement is 32.5# portland cement.
(2) after slurry successively being flowed slurry molding, vacuum dehydration, steam press maintenance, fiber cement board is obtained.
Embodiment 6
The preparation process of the fiber cement board of the present embodiment is as follows:
(1) paper pulp is weighed, sepiolite is loosened in loosening apparatus 25min respectively, the sea by the paper pulp after loosening and after loosening
Afrodite is put into beater, adds calcium hydroxide, quartz, wollastonite, sodium modification montmorillonite, flyash, zinc oxide, basalt
Fiber, is eventually adding cement and water, and stirring 20min obtains slurry, wherein flyash is level-one flyash；Quartz partial size be
170 mesh~180 mesh, quartz in silica mass percentage be 98%；The whiteness of calcium hydroxide is 95%；Basalt fibre
Length be 9mm~10mm, the diameter of basalt fibre is 0.015mm~0.017mm；Wollastonite is level-one raphioid fiber knot
Structure, and fibre length is 2mm~3mm, the draw ratio of wollastonite is 9:1；The partial size of sodium modification montmorillonite is 800 mesh~1000
Mesh；Sepiolite is fibrous sepiolite；The partial size of zinc oxide is 800 mesh~1000 mesh；Cement is 42.5# portland cement.
(2) after slurry successively being flowed slurry molding, vacuum dehydration, steam press maintenance, fiber cement board is obtained.
Embodiment 7
The preparation process of the fiber cement board of the present embodiment is roughly the same with embodiment 1, the difference is that: the present embodiment
Sepiolite be clay shape sepiolite.
Embodiment 8
The manufacturing process of the fiber cement board of the present embodiment is roughly the same with embodiment 2, the difference is that, the present embodiment
Without flyash, and the parts by weight of cement are 55 parts.
Embodiment 9
The manufacturing process of the fiber cement board of the present embodiment is roughly the same with embodiment 3, the difference is that, the present embodiment
The parts by weight of middle wollastonite are 3 parts.
Embodiment 10
The manufacturing process of the fiber cement board of the present embodiment is roughly the same with embodiment 5, the difference is that, the present embodiment
The parts by weight of middle wollastonite are 10 parts.
Embodiment 11
The manufacturing process of the fiber cement board of the present embodiment is roughly the same with embodiment 3, the difference is that, the present embodiment
Wollastonite is wollastonite in powder, and the parts by weight of wollastonite in powder are 5 parts.
The parts by weight of each raw material of fiber cement board in 1 embodiment 1~11 of table
Test:
According to the test method of the use in JG/T 396-2012 " exterior wall non-bearing fiber reinforced cement board " to implementation
The fiber cement board of example 1~11 carries out physical and chemical performance detection, and testing result is shown in Table 2.Wherein, what table 2 indicated is embodiment 1
The physical and chemical performance of~11 fiber cement board.The judgment criteria of combustibility is the standard for whether meeting GB8624A grades.
Table 2
From table 2 it can be seen that the doping quantity of fly ash of the fiber cement board of Examples 1 to 6 is higher, 50% is reached as high as；Respectively
Component synergistic effect, so that the apparent density of fiber cement board is higher, saturation flexural strength is higher, impact resistance is relatively strong, mechanics
It has excellent performance, not hygroscopic deformation, impermeability are preferable, and combustibility meets GB8624A grades of standard.Above-mentioned preparation method obtains
To fiber cement board meet the requirement in JG/T 396-2012 product professional standard to high-density fiber cement products, intensity
Reach the index of III level plate.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of fibre cement product, which is characterized in that based on parts by weight, raw material includes:
2. fibre cement product according to claim 1, which is characterized in that the flyash is level-one flyash or second level
Flyash.
3. fibre cement product according to claim 1, which is characterized in that the quality hundred of the silica in the quartz
Content is divided to be greater than or equal to 95%；And/or
The partial size of the quartz is 160 mesh~200 mesh.
4. fibre cement product according to claim 1, which is characterized in that the whiteness of the calcium hydroxide is greater than or equal to
90%.
5. fibre cement product according to claim 1, which is characterized in that the length of the basalt fibre be 5mm~
12mm, the diameter of the basalt fibre are 0.015mm~0.02mm.
6. fibre cement product according to claim 1, which is characterized in that the sepiolite is fibrous sepiolite；And/
Or,
The wollastonite is threadiness, and the fibre length of the wollastonite is greater than or equal to 2mm.
7. fibre cement product according to claim 1, which is characterized in that the partial size of the sodium modification montmorillonite is
800 mesh~1200 mesh.
8. fibre cement product according to claim 1, which is characterized in that the partial size of the zinc oxide be 800 mesh~
1200 mesh.
9. application of the fibre cement product according to any one of claims 1 to 8 in building curtain wall production.
10. the preparation method of fibre cement product according to any one of claims 1 to 8, which is characterized in that including walking as follows
It is rapid:
By the paper pulp, the sepiolite, the calcium hydroxide, the quartz, the wollastonite, the sodium modification montmorillonite,
The flyash, the zinc oxide, the basalt fibre and the cement mixing, mashing, obtain slurry；And
By the slurry successively through molding, drying and maintenance, fibre cement product is obtained.
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| CN113173761A (en) * | 2021-06-15 | 2021-07-27 | 丁永平 | Fiber cement board and preparation method thereof |
| CN113968700A (en) * | 2021-09-26 | 2022-01-25 | 武汉建筑材料工业设计研究院有限公司 | High-toughness high-strength low-wet-expansion fiber cement external wall panel and preparation method thereof |
| CN114804780A (en) * | 2022-05-24 | 2022-07-29 | 深圳中邦环保科技控股有限公司 | Fiber cement board based on industrial solid waste and preparation method |
| CN115557756A (en) * | 2022-11-03 | 2023-01-03 | 华新水泥股份有限公司 | Carbonized board based on low-grade low-carbon cement clinker and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113173761A (en) * | 2021-06-15 | 2021-07-27 | 丁永平 | Fiber cement board and preparation method thereof |
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| CN114804780A (en) * | 2022-05-24 | 2022-07-29 | 深圳中邦环保科技控股有限公司 | Fiber cement board based on industrial solid waste and preparation method |
| CN115557756A (en) * | 2022-11-03 | 2023-01-03 | 华新水泥股份有限公司 | Carbonized board based on low-grade low-carbon cement clinker and preparation method thereof |
| CN115557756B (en) * | 2022-11-03 | 2023-11-03 | 华新水泥股份有限公司 | Carbonized plate based on low-grade low-carbon cement clinker and preparation method thereof |
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