KR101814271B1 - A manufacturing method of a bubble cement board and a bubble cement board foam made thereby - Google Patents
A manufacturing method of a bubble cement board and a bubble cement board foam made thereby Download PDFInfo
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- KR101814271B1 KR101814271B1 KR1020160025011A KR20160025011A KR101814271B1 KR 101814271 B1 KR101814271 B1 KR 101814271B1 KR 1020160025011 A KR1020160025011 A KR 1020160025011A KR 20160025011 A KR20160025011 A KR 20160025011A KR 101814271 B1 KR101814271 B1 KR 101814271B1
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- South Korea
- Prior art keywords
- weight
- cement
- mixture
- cement board
- room temperature
- Prior art date
Links
- 239000004568 cement Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 239000006260 foam Substances 0.000 title abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 35
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 239000004254 Ammonium phosphate Substances 0.000 claims abstract description 12
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims abstract description 12
- 235000019289 ammonium phosphates Nutrition 0.000 claims abstract description 12
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011398 Portland cement Substances 0.000 claims abstract description 11
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims abstract description 10
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 9
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 9
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims abstract description 9
- 235000013539 calcium stearate Nutrition 0.000 claims abstract description 9
- 239000008116 calcium stearate Substances 0.000 claims abstract description 9
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 9
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 230000032683 aging Effects 0.000 claims abstract description 5
- 238000004898 kneading Methods 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 10
- 239000010440 gypsum Substances 0.000 claims description 8
- 229910052602 gypsum Inorganic materials 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 229940082569 selenite Drugs 0.000 abstract description 2
- MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 239000011381 foam concrete Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 239000008030 superplasticizer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/02—Cellulosic materials
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
-
- 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
-
- 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
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
Abstract
The present invention relates to a cement composition comprising 75 to 80% by weight of Portland cement, 7 to 10% by weight of CSA cement, 3 to 5% by weight of Selenite, 0.5 to 1% by weight of hydrogen peroxide, 1 to 5% by weight of lithium carbonate, Citric acid, 0.1 to 0.7 wt% of fiber, 0.5 to 1 wt% of calcium stearate, 1 to 3 wt% of hydroxyethyl cellulose, 1 to 3 wt% of ammonium phosphate ) And 3 to 5% by weight of a water reducing agent; Mixing 40 to 50% by weight of water with respect to the total weight of the mixture, and kneading the mixture at room temperature; And a step of putting the kneaded product into a mold and aging the kneaded product at room temperature. The present invention also provides a method for producing a porous lightweight foam and a bubble cement board manufactured by the method.
Description
The present invention relates to a method of manufacturing a bubble cement board and a bubble cement board manufactured by the method, and more particularly, to a method of manufacturing a bubble cement board excellent in heat insulation, soundproofing and nonflammability, and a bubble cement board .
Generally, in order to prevent the heat loss in the building and to increase the insulation effect, the insulation is applied during the building construction. Such a heat insulating material is a glass surface, vermiculite, perlite, airgel or the like for flame retardancy in addition to the adiabatic effect.
However, since the glass surface has a sealed air layer formed between the glass fibers, it is excellent in heat insulation, nonflammability, sound absorption, etc. However, there is a fear of reduction in effective thickness due to compression or settlement and deterioration of heat insulation due to function. There is a problem that it is necessary. Further, there is a problem that high energy of 1,000 DEG C or more is required for foaming of minerals such as vermiculite or perlite. In the case of aerogels, the structures with a thickness of one tenth of a hair are entangled like cotton candy, and the air holes occupy 95% of the total volume, which is advantageous in terms of insulation and soundproofing. However, due to the disadvantage of relatively high cost, And the like.
For this reason, recently, ALC (Autoclaved Lightweight Concrete) is attracting attention. It is a type of lightweight foamed concrete in which cement and foaming agent are added to lime and the mixture made porous by foam system is steam cured at high temperature and high pressure.
However, since such lightweight foamed concrete is cured in a high-temperature and high-pressure reactor, it is expensive to install the facility and requires a long time to cure the cement. Particularly, when lightweight foamed concrete is directly applied without curing, the curing time is several days or more, so that the bond between the foamed cement particles and the particles is broken, and the compressive strength after curing is remarkably decreased.
It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to reduce the cost by using ordinary Portland cement and to reduce the energy cost by foaming and curing more uniformly and rapidly at room temperature without using a separate foaming agent Soundproofing, sound-absorbing property, and nonflammability, while maintaining the required compressive strength, and a bubble cement board manufactured by this manufacturing method.
According to an aspect of the present invention, there is provided a cement paste composition comprising 75 to 80 wt% of Portland cement, 7 to 10 wt% of CSA cement, 3 to 5 wt% of Selenite, 0.5 to 1 wt% of hydrogen peroxide, 1 to 5 wt% of lithium carbonate 0.1 to 0.5% by weight of citric acid, 0.1 to 0.7% by weight of fibers, 0.5 to 1% by weight of calcium stearate, 1 to 3% by weight of hydroxyethyl cellulose, 1 to 3% by weight of ammonium (Ammonium Phosphate) and 3 to 5% by weight of a water reducing agent; Mixing 40 to 50% by weight of water with respect to the total weight of the mixture, and kneading the mixture at room temperature; And aging the kneaded product at room temperature by injecting the kneaded product into a mold.
According to another aspect of the present invention, there is provided a method of manufacturing a bubble cement board, wherein the CSA cement has a plurality of pores formed by firing at 800 ° C or higher and quenched.
According to another aspect of the present invention, there is provided a bubble cement board, which is manufactured by the above-described manufacturing method.
As described above, according to the present invention, it is possible to provide a bubble cement board in which a foamed structure is formed at room temperature without using a foaming agent, so that it is light in weight and low in cost and does not require a production facility like a conventional reactor, The cost is reduced. The bubble cement board is more uniform and stabilized in foamed structure by hydroxyethyl cellulose, so that it maintains a certain compressive strength and is excellent in sound insulation and sound absorption as well as in heat insulation, has a short curing time, Do. On the other hand, since CSA cement as a raw material of the bubble cement board is quenched and quenched to form a plurality of pores as compared with the prior art, sound insulation and sound absorption are more excellent, so that the interlayer noise of a building can be more effectively solved to provide a pleasant living space And it is excellent in nonflammability, so that even if fire is generated by other interior materials, toxic gas is not generated, safety is improved, environmentally friendly, and damage scale can be reduced.
The objects, features and advantages of the present invention will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described.
A method of manufacturing a foamed cement board according to an embodiment of the present invention includes a process of making a mixture, a process of kneading the mixture with water, and a process of putting the kneaded material into a mold and aging the mixture. Hereinafter, the mixture will be described first.
Herein, the mixture may be selected from conventional Portland cement, CSA cement, gypsum, hydrogen peroxide, lithium carbonate, citric acid, fiber, calcium stearate, hydroxyethyl cellulose, ammonium phosphate (Ammonium Phosphate), and a water reducing agent.
Cement is divided into air hard cement which is categorized largely by air, hard cement which is hardened in air and water, and special cement which is cured in air. Portland cement which is called general cement is hydraulic cement. At this time, it is preferable to add 75 to 80% by weight of the Portland cement into the mixture.
The above-mentioned CSA (Calcium Sulfo-Aluminate) cement is known to be made of lime, gypsum and bauxite materials, and is known as ultra fast cement and expansion cement. It has a characteristic that the coagulation time and intensity development speed are much faster than other general cements .
Unlike the conventional CSA cement, the present invention is characterized in that the CSA cement is produced by sintering the material at approximately 800 캜 and quenched. That is, the conventional CSA cement is manufactured by calcining the material and then cooling the material. However, in the present invention, a plurality of pores are retained without being bubbled by rapidly cooling the material in a state where a plurality of pores are formed. It is preferable to add 7 to 10 wt% of the CSA cement into the mixture. At this time, the input amount of the Portland cement and CSA cement is determined in consideration of the optimized state due to the physical properties and mixing ratio of the remaining raw materials of the mixture.
The gypsum is added for the purpose of producing etringite as is well known. Anhydrous gypsum is used for such gypsum, and it is preferable to add 3 to 5 wt% to the mixture. When the amount of gypsum is less than 3% by weight, the amount of etrinzite is small and the initial strength of the present invention deteriorates. When the amount of gypsum is more than 5% by weight, the length of etinzite is shortened and the strength development is inhibited.
The hydrogen peroxide is mixed with Portland cement to generate air bubbles, and it is preferable to add 0.5 to 1 wt% of the hydrogen peroxide into the mixture. If the amount of hydrogen peroxide is less than 0.5 wt%, the effect of hydrogen peroxide is insignificant. If the amount of hydrogen peroxide is more than 1 wt%, the effect of hydrogen peroxide on the increase of the amount of input is hardly obtained.
Lithium carbonate (CRC) helps to cure the cement rapidly to improve initial strength and ensure initial fluidity. Such lithium carbonate is preferably added in an amount of 1 to 5 wt% in the mixture. If the amount of lithium carbonate is less than 1% by weight, it is difficult to obtain a controlled effect. If the amount of lithium carbonate is more than 5% by weight, the coagulation time may be excessively delayed or skewed.
Citric acid is a known retarder for delaying the condensation of concrete by suppressing the hydration reaction of cement, and is for controlling the time when the lightweight foam is injected into the mold and foamed. Such citric acid is preferably added in an amount of 0.1 to 0.5 wt% in the mixture. When the content of citric acid is less than 0.1% by weight, the effect of citric acid is insignificant. If the content exceeds 0.5% by weight, proper mixing with other raw materials may be impaired and the physical properties may be deteriorated.
The fibers prevent cracking of the foamed cement board according to the present invention, and both plant fiber and chemical fiber can be used. It is preferable that 0.1 to 0.7% by weight of the fiber is added to the mixture. If the fiber content is less than 0.1% by weight, it is easily broken by a small impact or the like. If the fiber content exceeds 0.7% by weight, some fibers are not smoothly mixed and aggregated.
The calcium stearate is a well-known waterproof material for preventing the penetration of water into the pores of the cement, and it is preferable to add 0.5 to 1% by weight of the calcium stearate into the mixture. If the amount of calcium stearate is less than 0.5% by weight, the water repellency is insignificant. If the amount of calcium stearate is more than 1% by weight, water repellency is good, but mixing with water is difficult and workability is deteriorated.
Hydroxyethyl cellulose (Hydroxyethyl Cellulose) allows the bubbles generated when the water is mixed with the mixture to be stably and uniformly dispersed. It also disperses the fibers substantially evenly within the mixture. Such hydroxyethyl cellulose is added in an appropriate amount depending on the interaction with other components of the mixture, and preferably 1 to 3 wt% is added.
The ammonium phosphate promotes the curing of the cement at room temperature, and monoammonium phosphate is preferably used. Such ammonium phosphate is preferably added in an amount of 1 to 3% by weight in the mixture. When the amount of ammonium phosphate is less than 1% by weight, it is difficult to secure an initial high strength. When the amount is more than 3% by weight, sufficient time for foaming can not be secured.
The water reducing agent is an admixture which improves the strength and durability by reducing the amount of water required for mixing the mixture and promoting the coagulation. As is well known, a polycarboxylic acid type, melamine type, amino sulfonic acid type or naphthalene type water reducing agent can be used. However, in the present invention, it is preferable to use a high-performance water reducing agent (Superplasticizer) having a better dispersing effect than a general water reducing agent. Such a water reducing agent is preferably added in an amount of 3 to 5 wt% in the mixture.
Then, water is added to the mixture in which the raw materials are mixed and kneaded. The amount of water is preferably 40 to 50% by weight based on the total weight of the mixture, and the mixture is kneaded at room temperature for a certain period of time. If the amount of water is less than 40% by weight, the effect of accelerating the curing of the CSA cement hardly occurs. If the amount of water exceeds 50% by weight, the curing of the CSA cement proceeds rapidly, but the foamed structure is not uniformly formed. Then, the kneaded product is put into a mold of a predetermined type and aged at a room temperature for a certain period of time. At this time, the completed product may be cut and subjected to plastic working in various molds.
The foamed cement board according to one embodiment of the present invention produced by mixing hydrogen peroxide with Portland cement generates bubbles and pores formed in the CSA cement are added to form a foamed structure having a larger number of pores, The foamed structure is more uniformly formed by the ethyl cellulose, and the foamed structure is complemented and stabilized by the above-mentioned mixtures, and the foamed structure is more stabilized by the ammonium phosphate particularly at room temperature.
As a result, the foamed structure having a plurality of pores in a short time is more uniformly cured, and the foamed structure is uniformly formed without being broken. Therefore, it is light in weight, maintains proper strength, and is excellent in heat insulation and sound absorption effect. Therefore, it is possible to reduce the noise level of the building by installing it as the insulation wall of the building, so that it can create a comfortable living environment and it is excellent in the incombustibility, so that even if a fire occurs through other interior materials, toxic gas is not emitted, It is environmentally friendly and has a long lifetime because of its excellent bonding strength between foamed tissues. Since it is manufactured at room temperature, facilities such as a reactor are not required as in the prior art, and production equipment costs are reduced.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.
Claims (3)
Mixing 40 to 50% by weight of water with respect to the total weight of the mixture, and kneading the mixture at room temperature; And
And aging the kneaded product at room temperature by injecting the kneaded product into a mold.
Mixing 40 to 50% by weight of water with respect to the total weight of the mixture, and kneading the mixture at room temperature; And
And then aging the kneaded product at room temperature by injecting the kneaded product into a mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160025011A KR101814271B1 (en) | 2016-03-02 | 2016-03-02 | A manufacturing method of a bubble cement board and a bubble cement board foam made thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160025011A KR101814271B1 (en) | 2016-03-02 | 2016-03-02 | A manufacturing method of a bubble cement board and a bubble cement board foam made thereby |
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| Publication Number | Publication Date |
|---|---|
| KR20170102646A KR20170102646A (en) | 2017-09-12 |
| KR101814271B1 true KR101814271B1 (en) | 2018-01-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102032130B1 (en) * | 2019-06-24 | 2019-11-08 | 곽장해 | Manufacturing method of ultra light weight bubble cement board and the ultra light weight bubble cement board foam made by the same |
| CN112898043B (en) * | 2021-03-19 | 2022-06-24 | 北京中科原创节能环保科技有限公司 | High-temperature-resistant energy-saving insulation board for industrial furnace and preparation method |
| CN113149581B (en) * | 2021-05-12 | 2022-04-15 | 山东鲁泰建材科技集团有限公司 | Concrete companion plate and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100594712B1 (en) * | 1998-01-16 | 2006-07-03 | 세나드 테크니크베통 아베 | Method for injecting of foamed concrete and a foamed concrete |
| KR101360261B1 (en) * | 2013-11-19 | 2014-02-11 | 임성호 | Manufacturing method of light weight bubble cement using composition of light weight bubble cement |
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| KR100594712B1 (en) * | 1998-01-16 | 2006-07-03 | 세나드 테크니크베통 아베 | Method for injecting of foamed concrete and a foamed concrete |
| KR101360261B1 (en) * | 2013-11-19 | 2014-02-11 | 임성호 | Manufacturing method of light weight bubble cement using composition of light weight bubble cement |
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