CN113060973A - Bio-based porous calcium silicate board and preparation process thereof - Google Patents
Bio-based porous calcium silicate board and preparation process thereof Download PDFInfo
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- CN113060973A CN113060973A CN202110393702.0A CN202110393702A CN113060973A CN 113060973 A CN113060973 A CN 113060973A CN 202110393702 A CN202110393702 A CN 202110393702A CN 113060973 A CN113060973 A CN 113060973A
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- 239000000378 calcium silicate Substances 0.000 title claims abstract description 32
- 229910052918 calcium silicate Inorganic materials 0.000 title claims abstract description 32
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 241000209094 Oryza Species 0.000 claims abstract description 49
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 49
- 235000009566 rice Nutrition 0.000 claims abstract description 49
- 239000000843 powder Substances 0.000 claims abstract description 35
- 210000003278 egg shell Anatomy 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 102000002322 Egg Proteins Human genes 0.000 claims abstract description 17
- 108010000912 Egg Proteins Proteins 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 235000013312 flour Nutrition 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000001354 calcination Methods 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 238000007723 die pressing method Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 239000002028 Biomass Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 235000013372 meat Nutrition 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010903 husk Substances 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Images
Classifications
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/08—Diatomaceous earth
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a bio-based porous calcium silicate board and a preparation process thereof, wherein the calcium silicate board comprises the following raw materials in parts by weight: 20-30 parts of egg shells, 20-30 parts of diatomite, 5-10 parts of rice hull fibers and 1-10 parts of glutinous rice flour; grinding eggshell into powder according to a certain proportion, uniformly mixing the powder with diatomite, calcining, uniformly mixing the calcined powder with a certain amount of rice hull fiber and glutinous rice flour, adding water to prepare slurry, and carrying out series of processes such as die pressing, demoulding, steam curing, drying and the like to prepare the green porous calcium silicate board. The eggshell and rice hull materials used by the invention have rich sources, and can realize the reutilization of waste resources to the maximum extent; in addition, both the egg shell and the diatomite have porous structures, and the prepared porous calcium silicate board has the advantages of efficiently adsorbing harmful gas, adjusting indoor humidity, preventing board surface from mildewing and the like.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a bio-based porous calcium silicate board and a preparation process thereof.
Background
The calcium silicate board is used as a novel green environment-friendly building material and has the advantages of fire prevention, water resistance, heat insulation, acid and alkali resistance and the like. The common materials for synthesizing the calcium silicate board comprise slaked lime, quartz powder, carbide slag, asbestos, wood fiber and the like, and are mainly synthesized from calcareous materials, siliceous materials and fiber materials. And three natural materials of egg shells, diatomite and rice hull fibers can just meet the synthesis requirements. Importantly, the eggshells, the rice hulls and the like belong to waste biomass materials, and have wide sources and low prices. In 2019, the annual egg yield of eggs in China reaches more than 600 million tons, and the eggshell yield is more than 60 million tons, but no effective processing mode exists at present, so that the waste of resources is caused. The yield of the rice in 2020 is 2.12 million tons, wherein the rice husk is about 4200 million tons, and the agricultural and forestry waste of the rice husk is not well developed and utilized. Therefore, the method has important ecological and economic values by fully utilizing the two waste biomass resources to convert the waste biomass resources into high-value calcium silicate boards.
Disclosure of Invention
The invention aims to provide a bio-based porous calcium silicate board and a preparation process thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
a bio-based porous calcium silicate board is prepared from the following raw materials in parts by weight: 20-40 parts of egg shells, 20-45 parts of diatomite, 5-10 parts of rice hull fibers and 1-10 parts of glutinous rice flour.
Further, the preparation process of the bio-based porous calcium silicate board comprises the following steps:
(1) cleaning egg shells and glutinous rice, drying, and grinding into egg shell powder and glutinous rice powder respectively;
(2) uniformly mixing the eggshell powder and the diatomite, putting the mixture into a muffle furnace, and setting a proper temperature to calcine the mixture for a period of time to obtain powder;
(3) mixing the calcined powder with the rice hull fiber and the glutinous rice flour according to a certain proportion, uniformly mixing by using a dry powder mixing stirrer, adding a certain amount of water, and continuously stirring for a period of time until the mixture is uniform to obtain slurry;
(4) sending the mixed slurry into a plate pressing machine for pressing a mold;
(5) after the die pressing is finished, the plate blank and the template are subjected to demoulding separation, and then the plate blank and the template are sent into a still kettle to be subjected to steam curing treatment for a period of time at constant temperature and constant pressure;
(6) and after the steam curing is finished, transferring the mixture into a dryer for drying to obtain the bio-based porous calcium silicate board.
As a further scheme of the invention: the crushing fineness of the egg shells in the step (1) is 100-2000 meshes, and the fineness of the glutinous rice flour is 50-1000 meshes.
As a further scheme of the invention: the calcining temperature in the step (2) is 800-1200 ℃, and the calcining time is 2-6 h.
As a further scheme of the invention: the length of the rice hull fiber in the step (3) is 2-10 mm; the weight ratio of the total mass of the powder, the rice hull fiber and the glutinous rice flour to the added water is 1:1-2.5, and the stirring time after the water is added is 1-7 hours.
As a further scheme of the invention: in the step (5), the steam curing temperature is 160-.
Compared with the prior art, the invention has the beneficial effects that:
the eggshell and the diatomite used in the invention have porous structures, and the prepared porous calcium silicate board can effectively adsorb harmful gases, such as toluene, formaldehyde, sulfur dioxide and other harmful gases; can also adjust indoor humidity, prevent the face from going mildy: when the moisture in the air is excessive, the water can be effectively adsorbed, and the indoor air humidity is reduced; when the indoor air is dry, the excessive moisture is released, and the moisture and the mildew do not occur even if the air goes through the 'return south' period. In addition, the sources of eggshell and rice hull materials are rich, and the reutilization of waste resources can be realized to the greatest extent.
Drawings
FIG. 1 is a photograph of a calcium silicate sheet produced in example 1 of the present invention.
FIG. 2 is a scanning electron micrograph of a calcium silicate sheet produced in example 1 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A bio-based porous calcium silicate board comprises the following raw materials in parts by weight: 20 parts of egg shells, 20 parts of diatomite, 5 parts of rice hull fibers and 2 parts of glutinous rice flour.
The preparation process of the bio-based porous calcium silicate board comprises the following steps:
(1) respectively cleaning egg shells and glutinous rice, drying, crushing and respectively grinding into 1000 meshes of egg shell powder and glutinous rice powder;
(2) uniformly mixing the eggshell powder and the diatomite, putting the mixture into a muffle furnace, and calcining for 5 hours at 1100 ℃;
(3) mixing the calcined powder with rice hull fiber (length of 3mm) and glutinous rice flour, uniformly mixing by using a dry powder mixing stirrer, adding 80 parts of water, and continuously stirring for 5 hours until uniform to obtain slurry;
(4) sending the slurry into a plate pressing machine for pressing a mold;
(5) after the die pressing is finished, the plate blank and the template are subjected to demoulding separation, and then are sent into an autoclave for steam curing for 7 hours at the constant temperature and the constant pressure of 180 ℃ and 1.3 MPa;
(6) and transferring the steamed meat to a dryer for drying after the steaming is finished.
Example 2
A bio-based porous calcium silicate board comprises the following raw materials in parts by weight: 20 parts of egg shells, 25 parts of diatomite, 6 parts of rice hull fibers and 3 parts of glutinous rice flour.
The preparation process of the bio-based porous calcium silicate board comprises the following steps:
(1) respectively cleaning egg shells and glutinous rice, drying, crushing and respectively grinding into 2000 meshes of egg shell powder and 1000 meshes of glutinous rice powder;
(2) uniformly mixing the eggshell powder and the diatomite, putting the mixture into a muffle furnace, and calcining for 6 hours at 800 ℃;
(3) mixing the calcined powder with rice hull fiber (length of 3mm) and glutinous rice flour, uniformly mixing by using a dry powder mixing stirrer, adding 100 parts of water, and continuously stirring for 7 hours until the mixture is uniform to obtain slurry;
(4) sending the slurry into a plate pressing machine for pressing a mold;
(5) after the die pressing is finished, the plate blank and the template are subjected to demoulding separation, and then are sent into an autoclave for steam curing for 10 hours at the constant temperature and the constant pressure of 160 ℃ and 1.5 MPa;
(6) and transferring the steamed meat to a dryer for drying after the steaming is finished.
Example 3
A bio-based porous calcium silicate board comprises the following raw materials in parts by weight: 25 parts of egg shells, 20 parts of diatomite, 5 parts of rice hull fibers and 3 parts of glutinous rice flour.
The preparation process of the bio-based porous calcium silicate board comprises the following steps:
(1) respectively cleaning egg shells and glutinous rice, drying, crushing and respectively grinding into 1500-mesh egg shell powder and 800-mesh glutinous rice powder;
(2) uniformly mixing the eggshell powder and the diatomite, putting the mixture into a muffle furnace, and calcining for 4 hours at 1200 ℃;
(3) mixing the calcined powder with rice hull fiber (length of 3mm) and glutinous rice flour, uniformly mixing by using a dry powder mixing stirrer, adding 105 parts of water, and continuously stirring for 5 hours until uniform to obtain slurry;
(4) sending the slurry into a plate pressing machine for pressing a mold;
(5) after the die pressing is finished, the plate blank and the template are subjected to demoulding separation, and then are sent into an autoclave to be steamed and cured for 4 hours at the constant temperature and pressure of 1.2MPa and at the temperature of 200 ℃;
(6) and transferring the steamed meat to a dryer for drying after the steaming is finished.
The calcium silicate board prepared by the method of the invention has physical and chemical indexes as shown in the following table 1 through detection:
TABLE 1
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The bio-based porous calcium silicate board is characterized by being prepared from the following raw materials in parts by weight: 20-40 parts of egg shells, 20-45 parts of diatomite, 5-10 parts of rice hull fibers and 1-10 parts of glutinous rice flour.
2. A process for preparing a bio-based porous calcium silicate sheet according to claim 1, comprising the steps of:
(1) cleaning egg shells and glutinous rice, drying, and grinding into egg shell powder and glutinous rice powder respectively;
(2) uniformly mixing the eggshell powder and the diatomite, putting the mixture into a muffle furnace, and calcining to obtain powder;
(3) mixing the powder obtained after calcination with the rice hull fiber and the glutinous rice flour, uniformly mixing by using a dry powder mixing stirrer, adding water, and continuously stirring until the mixture is uniform to obtain slurry;
(4) sending the slurry into a plate pressing machine for pressing a mold;
(5) after the die pressing is finished, the plate blank and the template are subjected to demoulding separation, and then the plate blank and the template are sent into an autoclave for steam curing treatment at constant temperature and constant pressure;
(6) and after the steam curing is finished, transferring the mixture into a dryer for drying to obtain the bio-based porous calcium silicate board.
3. The preparation process of the bio-based porous calcium silicate board as claimed in claim 2, wherein the fineness of the eggshell powder in step (1) is 100-2000 mesh, and the fineness of the glutinous rice powder is 50-1000 mesh.
4. The process for preparing bio-based porous calcium silicate board as claimed in claim 2, wherein the calcination temperature in step (2) is 800-1200 ℃ and the calcination time is 2-6 h.
5. The preparation process of the bio-based porous calcium silicate board according to claim 2, wherein the weight ratio of the total mass of the powder, the rice hull fiber and the glutinous rice flour in the step (3) to the added water is 1:1-2.5, and the stirring time after the water is added is 1-7 hours.
6. The process for preparing a bio-based porous calcium silicate board according to claim 2, wherein the length of the rice hull fiber in the step (3) is 2-10 mm.
7. The bio-based porous calcium silicate board and the preparation process thereof as claimed in claim 2, wherein the steam curing temperature in step (5) is 160-200 ℃, the pressure is 1.2-1.5MPa, and the steam curing time is 4-10 h.
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| CN202110393702.0A CN113060973A (en) | 2021-04-13 | 2021-04-13 | Bio-based porous calcium silicate board and preparation process thereof |
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| CN202110393702.0A CN113060973A (en) | 2021-04-13 | 2021-04-13 | Bio-based porous calcium silicate board and preparation process thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1142848A1 (en) * | 2000-02-15 | 2001-10-10 | Nichias Co., Ltd. | Calcium silicate board and method of manufacturing same |
| CN103408276A (en) * | 2013-05-28 | 2013-11-27 | 常熟市金亿复合材料有限公司 | Method for processing fiber reinforced calcium silicate sheet |
| CN108863271A (en) * | 2018-08-02 | 2018-11-23 | 遵义市旭辉新型节能建材有限公司 | A kind of reinforced aerated bricks |
| CN110482978A (en) * | 2019-09-20 | 2019-11-22 | 武汉理工大学 | A kind of diatom base calcium silicate board and preparation method thereof |
-
2021
- 2021-04-13 CN CN202110393702.0A patent/CN113060973A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1142848A1 (en) * | 2000-02-15 | 2001-10-10 | Nichias Co., Ltd. | Calcium silicate board and method of manufacturing same |
| CN103408276A (en) * | 2013-05-28 | 2013-11-27 | 常熟市金亿复合材料有限公司 | Method for processing fiber reinforced calcium silicate sheet |
| CN108863271A (en) * | 2018-08-02 | 2018-11-23 | 遵义市旭辉新型节能建材有限公司 | A kind of reinforced aerated bricks |
| CN110482978A (en) * | 2019-09-20 | 2019-11-22 | 武汉理工大学 | A kind of diatom base calcium silicate board and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| S.K.S. HOSSAIN等: "Development of sustainable calcium silicate board: Utilization of different solid wastes", 《BOLETÍN DE LA SOCIEDAD ESPANOLA DE CERÁMICA Y VIDRIO》 * |
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Application publication date: 20210702 |