CN114014694A - Hydrophobic heat-preservation foam concrete prefabricated part and preparation method thereof - Google Patents
Hydrophobic heat-preservation foam concrete prefabricated part and preparation method thereof Download PDFInfo
- Publication number
- CN114014694A CN114014694A CN202111344704.7A CN202111344704A CN114014694A CN 114014694 A CN114014694 A CN 114014694A CN 202111344704 A CN202111344704 A CN 202111344704A CN 114014694 A CN114014694 A CN 114014694A
- Authority
- CN
- China
- Prior art keywords
- parts
- foam concrete
- heat
- prefabricated part
- hydrophobic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011381 foam concrete Substances 0.000 title claims abstract description 84
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 75
- 238000004321 preservation Methods 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000004744 fabric Substances 0.000 claims abstract description 52
- 239000002131 composite material Substances 0.000 claims abstract description 40
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 37
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 36
- 239000004088 foaming agent Substances 0.000 claims abstract description 34
- 239000002245 particle Substances 0.000 claims abstract description 28
- 239000000701 coagulant Substances 0.000 claims abstract description 27
- 229920006389 polyphenyl polymer Polymers 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010439 graphite Substances 0.000 claims abstract description 20
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 20
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 18
- 239000011707 mineral Substances 0.000 claims abstract description 18
- 239000011398 Portland cement Substances 0.000 claims abstract description 17
- 238000010521 absorption reaction Methods 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims description 30
- 239000006260 foam Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 17
- 230000002940 repellent Effects 0.000 claims description 17
- 239000005871 repellent Substances 0.000 claims description 17
- 239000003381 stabilizer Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 238000005187 foaming Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 9
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 7
- 229920002748 Basalt fiber Polymers 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 150000004645 aluminates Chemical class 0.000 claims description 6
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 6
- 235000013539 calcium stearate Nutrition 0.000 claims description 6
- 239000008116 calcium stearate Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 6
- 229920000609 methyl cellulose Polymers 0.000 claims description 6
- 239000001923 methylcellulose Substances 0.000 claims description 6
- 235000010981 methylcellulose Nutrition 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000008107 starch Substances 0.000 claims description 6
- 235000019698 starch Nutrition 0.000 claims description 6
- HDETVIAMQNTONT-UHFFFAOYSA-N C[SiH2]O.[Na] Chemical compound C[SiH2]O.[Na] HDETVIAMQNTONT-UHFFFAOYSA-N 0.000 claims description 5
- 239000005543 nano-size silicon particle Substances 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 235000019738 Limestone Nutrition 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000002956 ash Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 238000005246 galvanizing Methods 0.000 claims description 2
- 239000006028 limestone Substances 0.000 claims description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 2
- 125000001624 naphthyl group Chemical group 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 229910021487 silica fume Inorganic materials 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 22
- 230000008569 process Effects 0.000 description 8
- 238000004134 energy conservation Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 235000021120 animal protein Nutrition 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 229920000265 Polyparaphenylene Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- -1 polyphenylene Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- GBPOWOIWSYUZMH-UHFFFAOYSA-N sodium;trihydroxy(methyl)silane Chemical compound [Na+].C[Si](O)(O)O GBPOWOIWSYUZMH-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002937 thermal insulation foam 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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight 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
- 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
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a hydrophobic heat-preservation foam concrete prefabricated part and a preparation method thereof, wherein the hydrophobic heat-preservation foam concrete prefabricated part comprises hydrophobic heat-preservation foam concrete and inorganic fiber mesh cloth; the hydrophobic heat-preservation foam concrete comprises the following components in parts by mass: 40-60 parts of Portland cement, 5-25 parts of mineral admixture, 1-3 parts of inorganic short fiber, 15-30 parts of water, 0.5-1.5 parts of water reducing agent, 4-6 parts of coagulant, 6-12 parts of composite foaming agent and 1-2 parts of graphite modified polyphenyl particles. The density of the hydrophobic heat-preservation foam concrete prefabricated part provided by the invention is 300-500 kg/m3The volume water absorption is less than or equal to 2 percent, the heat conductivity coefficient is 0.040-0.065W/(m.K), the compressive strength is more than or equal to 11.0 MPa, and the fire-proof rating is A1 grade, and the fireproof heat-insulating material has the advantages of high heat-insulating property, high heat-insulating property and high heat-insulating propertyHas excellent light weight, high strength, hydrophobic, fireproof and heat insulating functions.
Description
Technical Field
The invention relates to the technical field of building energy conservation and assembled building materials, in particular to a hydrophobic heat-preservation foam concrete prefabricated part and a preparation method thereof.
Background
The use of the prefabricated parts in the building field can reduce environmental pollution, improve construction quality, save labor cost, improve construction efficiency and reduce the comprehensive cost of the building. With the introduction of various new building concepts such as building industrialization, energy conservation and emission reduction, quality safety, ecological environment protection and the like, the demands of the nation and the society on prefabricated parts with high efficiency, energy conservation, environmental protection and low cost are remarkably increased on the premise that a large amount of infrastructure construction and large-scale building construction guarantee need standardization and rapidness in the urbanization process. However, the application of the traditional concrete prefabricated part in the field of building energy conservation is greatly limited due to the poor heat insulation performance and high temperature resistance of the traditional concrete prefabricated part.
The foam concrete is a novel heat-insulating material which is generally applied in the field of building energy conservation at present, and has the advantages of good fire resistance, strong flame retardance, small deformation coefficient, strong ageing resistance, stable performance, high safety in the using process, low production cost and the like compared with other heat-insulating materials. The foam concrete can realize a novel prefabricated part which is light in weight, energy-saving and easy for industrial production. However, because of the defects of low strength, high water absorption rate in service, reduced heat insulation performance, rapid water loss in dry environment, large drying shrinkage and the like, the foam concrete is mostly used as a composite structure core represented by a sandwich wallboard, namely the foam concrete is used as a component heat insulation core material. However, it is difficult to form building members independently from foamed concrete, and the use of foamed concrete as a core material will undoubtedly affect the heat-insulating function and water resistance.
Therefore, a hydrophobic heat-preservation foam concrete prefabricated part needs to be developed, a light heat-preservation prefabricated part with good mechanical property, excellent heat preservation and fire resistance and low water absorption rate is met, and the application range of the light heat-preservation prefabricated part in the fields of building energy conservation and assembled building materials is widened.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a hydrophobic heat-preservation foam concrete prefabricated part with good mechanical property, low water absorption rate, light weight, high strength, fire resistance and heat preservation property and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a hydrophobic heat-preservation foam concrete prefabricated part which comprises hydrophobic heat-preservation foam concrete and inorganic fiber mesh cloth; the hydrophobic heat-preservation foam concrete comprises the following components in parts by mass: 40-60 parts of Portland cement, 5-25 parts of mineral admixture, 1-3 parts of inorganic short fiber, 15-30 parts of water, 0.5-1.5 parts of water reducing agent, 4-6 parts of coagulant, 6-12 parts of composite foaming agent and 1-2 parts of graphite modified polyphenyl particles; the dry density of the hydrophobic heat-insulating foam concrete is 300-500 kg/m3The volume water absorption is less than or equal to 2 percent, and the heat conductivity coefficient is 0.040-0.065W/(m.K).
Further, the mineral admixture is one or a mixture of more than two of fly ash, mineral powder, limestone powder, volcanic ash, steel slag, gangue powder, building micro powder and silica fume; preferably ultrafine fly ash with specific surface area of more than or equal to 700 m2/kg。
Furthermore, the inorganic short fiber is one of rock wool fiber, basalt fiber, alumina fiber and asbestos fiber; the length of the material is 0.5 mm-1.5 mm, and the length-diameter ratio is 20-30: 1; the inorganic short fiber satisfies the following conditions: the tensile strength is more than or equal to 3500 MPa, the elastic modulus is more than or equal to 50 GPa, the elongation at break is more than or equal to 2.5 percent, and the highest working temperature is more than or equal to 600 ℃.
Further, the water reducing agent is a naphthalene-based high-efficiency water reducing agent, an amino high-efficiency water reducing agent, a fatty acid high-efficiency water reducing agent or a polycarboxylic acid high-efficiency water reducing agent; preferably selecting a polycarboxylic acid water reducing agent, wherein the solid content is 40-50%, and the water reducing rate is more than 30%.
Further, the coagulant comprises the following components in parts by mass: 3.5-4.0 parts of aluminate cement, 0.3 part of nano silicon dioxide and 0.3-0.5 part of lithium carbonate; wherein the main content of the lithium carbonate is not less than 99.5 percent, an alkaline environment is provided, the hydration process of the cementing material is accelerated, and the method conforms to GB/T11075-2003.
Further, the composite foaming agent provided by the invention comprises the following raw materials in parts by mass: 3-6 parts of foaming agent, 2-4 parts of composite water repellent and 0.03-0.06 part of stabilizer; the composite water repellent comprises the following raw materials in parts by mass: 2 parts of sodium methyl silanol and 1 part of calcium stearate; the stabilizer is composed of the following raw materials in parts by mass: 2 parts of methyl cellulose and 2 parts of starch ether.
Further, the composite foaming agent provided by the invention comprises the following raw materials in parts by mass: 6 parts of foaming agent, 4 parts of composite water repellent and 0.06 part of stabilizer.
Further, the graphite modified polyphenyl particles meet the following requirements: the density is less than or equal to 25 kg/m3, the particle size is 1.5-4.5 mm, the volume water absorption is less than or equal to 2.0%, the heat conductivity coefficient is less than or equal to 0.030W/(m.K), and the combustion performance grade is B1 or above.
Further, the inorganic fiber mesh cloth is carbon fiber mesh cloth, basalt fiber mesh cloth, glass fiber mesh cloth or an anti-rust steel wire mesh sheet; the inorganic fiber mesh cloth satisfies the following conditions: the tensile strength of the fiber is more than or equal to 3000 MPa, the elastic modulus is more than or equal to 45 GPa, the elongation at break is more than or equal to 2.5 percent, the highest working temperature is more than or equal to 600 ℃, the size of the grid cloth spacer mesh is 20-50 mm, and the diameters of the warp and weft are 1-2.5 mm; wherein, the surface of the steel wire mesh sheet is subjected to hot galvanizing rust-proof treatment, and the diameter of the steel wire is 2-4 mm.
The components used in the hydrophobic heat-preservation and sound-insulation foam concrete can be directly purchased from commercial products or prepared by the conventional preparation method in the field if no special limitation exists, and for example, aluminate cement and the like can be directly purchased from commercial products.
The invention also provides a preparation method of the hydrophobic heat-preservation foam concrete prefabricated part, which comprises the following steps:
step (1): weighing the components in proportion, firstly adding the portland cement, the mineral admixture and the inorganic short fiber into a stirrer, and stirring for 1-2 min until the components are uniformly mixed;
step (2): weighing a water reducing agent, water and a coagulant according to a ratio, dissolving the water reducing agent and the coagulant in water, pouring the water reducing agent and the coagulant into the stirrer in the step (1), and stirring for 5-10 min to form slurry;
and (3): foaming the composite foaming agent to prepare stable and uniform foam;
the specific process of foaming the composite foaming agent comprises the following steps: uniformly mixing the composite foaming agent and water according to the mass ratio of 1: 10-20, adding the mixture into a foaming machine, foaming for 2-3 min to obtain stable and uniform foam, wherein the foam density is 30-35 g/cm3。
And (4): stirring and mixing the slurry obtained in the step (2) and the foam obtained in the step (3) according to the volume ratio of 1: 75-90 to prepare foam concrete slurry;
and (5): adding graphite modified polyphenyl particles into the foam concrete slurry obtained in the step (4), and stirring to obtain hydrophobic heat-preservation foam concrete slurry;
and (6): assembling a prefabricated part mould, pre-stretching inorganic fiber mesh cloth into the prefabricated part mould in multiple layers, wherein the distance between the inorganic fiber mesh cloth and the bottom surface of the prefabricated part of the test piece is 10 mm after the first layer of inorganic fiber mesh cloth is pre-stretched, the distance between each layer of pre-stretched fiber mesh cloth is 20-30 mm, and the number of layers of the pre-stretched inorganic fiber mesh cloth is determined by the thickness of the prefabricated part;
and (7): and (4) injecting the hydrophobic heat-preservation foam concrete slurry obtained in the step (5) into the prefabricated part mould obtained in the step (6), leveling the surface, carrying out standard maintenance on the mould for 24-48 h, then demoulding, and then carrying out maintenance for 27-30 d to obtain the hydrophobic heat-preservation foam concrete prefabricated part.
In summary, the invention has the following advantages:
1. based on the surface activity of methyl cellulose and starch ether, the foam stability is improved, the pressure bearing capacity of foam in hydrophobic heat-preservation foam concrete is improved, and the foam retention time is prolonged; based on the strong chemical affinity among sodium methylsiliconate, calcium stearate and inorganic silicate material, the composite water repellent can effectively change the surface characteristics of the silicate material, reduce the water absorption rate of the silicate material and make the hydrophobic heat-preservation foam concrete achieve the hydrophobic effect; the tensile toughness of the inorganic short fibers and the filling effect of the graphite modified polyphenyl particles are utilized to reduce the drying shrinkage of the hydrophobic heat-preservation foam concrete, and the water absorption rate can be further reduced after the graphite modified polyphenyl particles are filled; by utilizing the higher tensile property and fire resistance of the inorganic fiber mesh cloth, the stability of the hydrophobic heat-preservation foam concrete prefabricated part is enhanced, and the mechanical property and the fire resistance of the hydrophobic heat-preservation foam concrete prefabricated part are improved. Comprehensively, under the synergistic effect of the modification effect of the composite foaming agent and the composite water repellent and the volume filling effect of the graphite modified polyphenyl particles, the hydrophobic heat-preservation foam concrete prefabricated part can obtain ultralow water absorption rate, heat conductivity coefficient and density grade and good fireproof performance; under the supporting action of the inorganic fiber mesh cloth and the graphite modified polyphenyl particle framework, the hydrophobic heat-preservation foam concrete prefabricated part has excellent mechanical properties.
2. The density of the hydrophobic heat-preservation foam concrete prefabricated part provided by the invention is 300-500 kg/m3The volume water absorption rate is less than or equal to 2 percent, the heat conductivity coefficient is 0.040-0.065W/(m.K), the compressive strength is more than or equal to 11.0 MPa, the fire-proof rating is A1 level, and the composite material has excellent light weight, high strength, hydrophobic property, fire-proof and heat-insulating functions.
3. The hydrophobic heat-preservation foam concrete prefabricated part and the preparation method thereof provided by the invention have the advantages of simple process and convenience in installation, are beneficial to saving energy, reduce the preparation cost of the prefabricated part and play an important role in promoting the energy conservation of buildings and the sustainable development of assembled building materials.
Drawings
FIG. 1 is a schematic view of a hydrophobic heat-insulating foam concrete prefabricated part (wall panel) according to the present invention;
in the figure, 1 is inorganic fiber mesh cloth, and 2 is hydrophobic heat-preservation foam concrete.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Thus, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A hydrophobic heat-preservation foam concrete prefabricated part comprises hydrophobic heat-preservation foam concrete and inorganic fiber mesh cloth; the hydrophobic heat-preservation foam concrete consists of the following components in parts by weight; 50 parts of Portland cement, 25 parts of mineral admixture, 2 parts of inorganic short fiber, 25 parts of water, 1 part of water reducing agent, 4 parts of coagulant, 8 parts of composite foaming agent and 2 parts of graphite modified polyphenyl particles; the components and the mass ratio of the composite foaming agent are 6 parts of foaming agent, 4 parts of composite water repellent and 0.06 part of stabilizer; wherein the mineral admixture is first-grade fly ash, the inorganic short fiber is rock wool fiber, the inorganic fiber mesh cloth is carbon fiber mesh cloth, and the mesh size is 50 multiplied by 50 mm; the foaming agent is an animal protein active foaming agent; the composite water repellent consists of the following raw materials in parts by mass: 2 parts of sodium methyl silanol and 1 part of calcium stearate; the Portland cement is 52.5-grade Portland cement; the stabilizer consists of the following raw materials in parts by mass: 2 parts of methyl cellulose and 2 parts of starch ether; the water reducing agent is a polycarboxylic acid water reducing agent, the solid content is 40-50%, and the water reducing rate is more than 30%; the coagulant comprises the following components in parts by mass: 3.5 parts of aluminate cement, 0.3 part of nano silicon dioxide and 0.4 part of lithium carbonate; wherein the main content of the lithium carbonate is not less than 99.5 percent, an alkaline environment is provided, the hydration process of the cementing material is accelerated, and the method conforms to GB/T11075-2003. The graphite modified polyphenyl particles meet the following requirements: the density is less than or equal to 25 kg/m3, the particle size is 1.5-4.5 mm, the volume water absorption is less than or equal to 2.0%, the heat conductivity coefficient is less than or equal to 0.030W/(m.K), and the combustion performance grade is B1 or above.
A preparation method of a hydrophobic heat-preservation foam concrete prefabricated part comprises the following steps:
(1) weighing the components according to the weight parts of the raw materials, firstly adding the portland cement, the mineral admixture and the inorganic short fiber into a stirrer, and stirring for 1-2 min until the components are uniformly mixed;
(2) weighing a water reducing agent, water and a coagulant according to a ratio, dissolving the water reducing agent and the coagulant in water, pouring the water reducing agent and the coagulant into a stirrer, and stirring for 5-10 min to form slurry;
(3) uniformly mixing the composite foaming agent and water according to a ratio of 1:20, adding the mixture into a foaming machine, and foaming for 2-3 min to obtain stable and uniform foam, wherein the foam density is 30 g/cm3；
(4) According to 1m3Slurry usage of 75m3Adding foam into the slurry according to the amount of the foam, and stirring for 3min to obtain foam concrete slurry;
(5) adding graphite modified polyphenyl particles, and stirring for 10-20 s to obtain hydrophobic heat-preservation foam concrete slurry;
(6) assembling a prefabricated wallboard mould with the internal dimension of 3000 multiplied by 600 multiplied by 100mm, and pre-stretching the inorganic fiber gridding cloth into the prefabricated wallboard mould in 5 layers, wherein the distance between the inorganic fiber gridding cloth and the bottom surface of the test piece is 10 mm after the first layer of the inorganic fiber gridding cloth is pre-stretched, and the distance between each layer of the pre-stretched fiber gridding cloth is 20 mm;
(7) and injecting the hydrophobic heat-preservation foam concrete slurry into a prefabricated wallboard mould, leveling the surface, carrying out standard curing for 24 hours with the mould, then demoulding, and carrying out standard curing for 27 days to obtain the hydrophobic heat-preservation foam concrete prefabricated wallboard.
Example 2
A hydrophobic heat-preservation foam concrete prefabricated part comprises hydrophobic heat-preservation foam concrete and inorganic fiber mesh cloth; the hydrophobic heat-preservation foam concrete consists of the following components in parts by weight; 55 parts of Portland cement, 20 parts of mineral admixture, 1 part of inorganic short fiber, 25 parts of water, 1 part of water reducing agent, 4 parts of coagulant, 8 parts of composite foaming agent and 2 parts of graphite modified polyphenyl particles; the components and the mass ratio of the composite foaming agent are 6 parts of foaming agent, 4 parts of composite water repellent and 0.06 part of stabilizer; wherein the mineral admixture is first-grade fly ash, the inorganic short fiber is asbestos fiber, the inorganic fiber mesh cloth is glass fiber mesh cloth, and the mesh size is 40 multiplied by 40 mm; the foaming agent is an animal protein active foaming agent; the composite water repellent consists ofThe raw materials with the following parts by mass: 2 parts of sodium methyl silanol and 1 part of calcium stearate; the Portland cement is 52.5-grade Portland cement; the stabilizer consists of the following raw materials in parts by mass: 2 parts of methyl cellulose and 2 parts of starch ether; the water reducing agent is a polycarboxylic acid water reducing agent, the solid content is 40-50%, and the water reducing rate is more than 30%; the coagulant comprises the following components in parts by mass: 3.5 parts of aluminate cement, 0.3 part of nano silicon dioxide and 0.4 part of lithium carbonate; wherein the main content of the lithium carbonate is not less than 99.5 percent, an alkaline environment is provided, the hydration process of the cementing material is accelerated, and the method conforms to GB/T11075-2003. The graphite modified polyphenyl particles meet the following requirements: the density is less than or equal to 25 kg/m3The particle size is 1.5-4.5 mm, the volume water absorption is less than or equal to 2.0%, the heat conductivity is less than or equal to 0.030W/(m.K), and the combustion performance grade is B1 or above.
A preparation method of a hydrophobic heat-preservation foam concrete prefabricated part comprises the following steps:
(1) weighing the components according to the weight parts of the raw materials, firstly adding the portland cement, the mineral admixture and the inorganic short fiber into a stirrer, and stirring for 1-2 min until the components are uniformly mixed;
(2) weighing a water reducing agent, water and a coagulant according to a ratio, dissolving the water reducing agent and the coagulant in water, pouring the water reducing agent and the coagulant into a stirrer, and stirring for 5-10 min to form slurry;
(3) uniformly mixing the composite foaming agent and water according to a ratio of 1:20, adding the mixture into a foaming machine, and foaming for 2-3 min to obtain stable and uniform foam, wherein the foam density is 30 g/cm3；
(4) According to 1m3Slurry usage 85m3Adding foam into the slurry according to the amount of the foam, and stirring for 3min to obtain foam concrete slurry;
(5) adding graphite modified polyphenyl particles, and stirring for 10-20 s to obtain hydrophobic heat-preservation foam concrete slurry;
(6) assembling a prefabricated wallboard mould with the internal dimension of 3000 multiplied by 600 multiplied by 100mm, and pre-stretching the inorganic fiber gridding cloth into the prefabricated wallboard mould in 5 layers, wherein the distance between the inorganic fiber gridding cloth and the bottom surface of the test piece is 10 mm after the first layer of the inorganic fiber gridding cloth is pre-stretched, and the distance between each layer of the pre-stretched fiber gridding cloth is 20 mm;
(7) and injecting the hydrophobic heat-preservation foam concrete slurry into a prefabricated wallboard mould, leveling the surface, carrying out standard curing for 24 hours with the mould, then demoulding, and carrying out standard curing for 27 days to obtain the hydrophobic heat-preservation foam concrete prefabricated wallboard.
Example 3
A hydrophobic heat-preservation foam concrete prefabricated part comprises hydrophobic heat-preservation foam concrete and inorganic fiber mesh cloth; the hydrophobic heat-preservation foam concrete consists of the following components in parts by weight; 60 parts of Portland cement, 15 parts of mineral admixture, 2 parts of inorganic short fiber, 25 parts of water, 1 part of water reducing agent, 4 parts of coagulant, 8 parts of composite foaming agent and 2 parts of graphite modified polyphenyl particles; the components and the mass ratio of the composite foaming agent are 6 parts of foaming agent, 4 parts of composite water repellent and 0.06 part of stabilizer; wherein the mineral admixture is first-grade fly ash, the inorganic short fiber is basalt fiber, the inorganic fiber gridding cloth is basalt fiber gridding cloth, and the size of the gridding is 30 multiplied by 30 mm; the foaming agent is an animal protein active foaming agent; the composite water repellent consists of the following raw materials in parts by mass: 2 parts of sodium methyl silanol and 1 part of calcium stearate; the Portland cement is 52.5-grade Portland cement; the stabilizer consists of the following raw materials in parts by mass: 2 parts of methyl cellulose and 2 parts of starch ether; the water reducing agent is a polycarboxylic acid water reducing agent, the solid content is 40-50%, and the water reducing rate is more than 30%; the coagulant comprises the following components in parts by mass: 3.5 parts of aluminate cement, 0.3 part of nano silicon dioxide and 0.4 part of lithium carbonate; wherein the main content of the lithium carbonate is not less than 99.5 percent, an alkaline environment is provided, the hydration process of the cementing material is accelerated, and the method conforms to GB/T11075-2003. The graphite modified polyphenyl particles meet the following requirements: the density is less than or equal to 25 kg/m3The particle size is 1.5-4.5 mm, the volume water absorption is less than or equal to 2.0%, the heat conductivity is less than or equal to 0.030W/(m.K), and the combustion performance grade is B1 or above.
A preparation method of a hydrophobic heat-preservation foam concrete prefabricated part comprises the following steps:
(1) weighing the components according to the weight parts of the raw materials, firstly adding the portland cement, the mineral admixture and the inorganic short fiber into a stirrer, and stirring for 1-2 min until the components are uniformly mixed;
(2) weighing a water reducing agent, water and a coagulant according to a ratio, dissolving the water reducing agent and the coagulant in water, pouring the water reducing agent and the coagulant into a stirrer, and stirring for 5-10 min to form slurry;
(3) uniformly mixing the composite foaming agent and water according to a ratio of 1:20, adding the mixture into a foaming machine, and foaming for 2-3 min to obtain stable and uniform foam, wherein the foam density is 30 g/cm3；
(4) According to 1m3The slurry used was 90 m3Adding foam into the slurry according to the amount of the foam, and stirring for 3min to obtain foam concrete slurry;
(5) adding graphite modified polyphenyl particles, and stirring for 10-20 s to obtain hydrophobic heat-preservation foam concrete slurry;
(6) assembling a prefabricated wallboard mould with the internal dimension of 3000 multiplied by 600 multiplied by 100mm, and pre-stretching the inorganic fiber gridding cloth into the prefabricated wallboard mould in 5 layers, wherein the distance between the inorganic fiber gridding cloth and the bottom surface of the test piece is 10 mm after the first layer of the inorganic fiber gridding cloth is pre-stretched, and the distance between each layer of the pre-stretched fiber gridding cloth is 20 mm;
(7) and injecting the hydrophobic heat-preservation foam concrete slurry into a prefabricated wallboard mould, leveling the surface, carrying out standard curing for 24 hours with the mould, then demoulding, and carrying out standard curing for 27 days to obtain the hydrophobic heat-preservation foam concrete prefabricated wallboard.
The hydrophobic heat-preservation foam concrete prefabricated part (wallboard) prepared by the embodiment is shown in figure 1.
Comparative example 1
In this comparative example, the conditions were the same as in example 3 except that the accelerator was not added.
Comparative example 2
In this comparative example, the conditions were the same as those in example 3 except that the composite water repellent was not added.
Comparative example 3
In this comparative example, the conditions were the same as in example 3 except that no stabilizer was added.
Comparative example 4
In this comparative example, the conditions were the same as those in example 3 except that the inorganic short fibers were not added.
Comparative example 5
In this comparative example, the conditions were the same as in example 3 except that the graphite-modified polyphenylene particles were not added.
Comparative example 6
In this comparative example, the inorganic fiber mesh cloth was replaced with a steel mesh, and the other conditions were the same as in example 3.
Examples of the experiments
In the embodiment, the performances of the hydrophobic heat-preservation foam concrete in the embodiments 1 to 3 and the comparative examples 1 to 6 are detected according to JG/T266-; detecting the 100 mm-thick hydrophobic heat-preservation foam concrete prefabricated wall boards prepared in the examples 1-3 and the comparative examples 1-6 according to GB/T23450-2009 thermal-preservation batten for building partition walls; the heat transfer coefficient test is carried out according to the standard (GB/T23483-: special requirements for non-load bearing vertical partition members. The test results are shown in tables 1 and 2.
Table 1 physical and mechanical properties of the prefabricated wallboards of examples 1-3 and comparative examples 1-6
TABLE 2 thermodynamic properties of prefabricated wallboards of examples 1-3 and comparative examples 1-6
As can be seen from the test data in Table 1, the density of the hydrophobic heat-preservation foam concrete is 300-500 kg/m3The volume water absorption is less than or equal to 2 percent, and the heat conductivity coefficient is 0.040-0.065 [ W/(m.K)]The surface density of the prefabricated wallboard with the thickness of 100mm is 300-50 kg/m2The compressive strength is more than or equal to 11.0 MPa, the bending load of more than 2 times of the self weight can be borne, and the heat transfer coefficient is 0.40-0.65 [ W/(m)2·K)]The fireproof flame-retardant fireproof cable has the advantages of fire resistance limit of more than 2.8 h, combustion performance grade of A1, light weight, high strength, hydrophobic performance, excellent fireproof, fireproof and heat-insulating functions.
Compared with the example 3, the water content and the heat conductivity coefficient of the comparative example 1 without the coagulant and the comparative example 3 without the stabilizer are obviously increased, and the compressive strength and the fire resistance limit are obviously reduced, which are caused by that the bubbles of the foam concrete in the comparative examples 1 and 3 are broken and communicated at the initial stage of forming to form a large amount of internal through holes; the water absorption of the comparative example 2 without the composite water repellent is increased by more than 6 times; comparative example 4 in which inorganic short fibers were not added and comparative example 5 in which graphite-modified polyphenylene particles were not added were inferior to the examples in each performance; the bending resistance of the prefabricated wallboard, which is not compounded with the inorganic fiber mesh cloth, is far inferior to that of the embodiment. All the points show that the coagulant, the composite water repellent, the stabilizer, the inorganic short fibers, the graphite modified polyphenyl particles, the inorganic fiber mesh cloth and the anti-rust steel wire mesh sheet provided by the patent are beneficial to improving the mechanical properties, the water absorption rate, the fire resistance and the heat preservation performance of the hydrophobic heat preservation foam concrete prefabricated part.
The foregoing is merely exemplary and illustrative of the present invention and it is within the purview of one skilled in the art to modify or supplement the embodiments described or to substitute similar ones without the exercise of inventive faculty, and still fall within the scope of the claims.
Claims (10)
1. A hydrophobic heat-preservation foam concrete prefabricated part is characterized by comprising hydrophobic heat-preservation foam concrete and inorganic fiber mesh cloth; the hydrophobic heat-preservation foam concrete comprises the following components in parts by mass: 40-60 parts of Portland cement, 5-25 parts of mineral admixture, 1-3 parts of inorganic short fiber, 15-30 parts of water, 0.5-1.5 parts of water reducing agent, 4-6 parts of coagulant, 6-12 parts of composite foaming agent and 1-2 parts of graphite modified polyphenyl particles.
2. The hydrophobic heat-preservation foam concrete prefabricated part according to claim 1, wherein the mineral admixture is one or a mixture of more than two of fly ash, mineral powder, limestone powder, volcanic ash, steel slag, gangue powder, building micropowder or silica fume.
3. The hydrophobic heat-insulating foamed concrete prefabricated part according to claim 2, wherein the inorganic short fibers are one of rock wool fibers, basalt fibers, alumina fibers and asbestos fibers; the length of the material is 0.5 mm-1.5 mm, and the length-diameter ratio is 20-30: 1; the inorganic short fiber satisfies the following conditions: the tensile strength is more than or equal to 3500 MPa, the elastic modulus is more than or equal to 50 GPa, the elongation at break is more than or equal to 2.5 percent, and the highest working temperature is more than or equal to 600 ℃.
4. The hydrophobic heat-preservation foam concrete prefabricated part according to claim 3, wherein the water reducing agent is a naphthalene-based high-efficiency water reducing agent, an amino-based high-efficiency water reducing agent, a fatty acid high-efficiency water reducing agent or a polycarboxylic acid high-efficiency water reducing agent.
5. The hydrophobic, heat-insulating, foamed concrete prefabricated element according to claim 4, characterized in that said accelerator comprises the following components in parts by mass: 3.5-4.0 parts of aluminate cement, 0.3 part of nano silicon dioxide and 0.3-0.5 part of lithium carbonate.
6. The hydrophobic heat-preservation foam concrete prefabricated part according to claim 5, characterized in that the composite foaming agent is composed of the following raw materials in parts by mass: 3-6 parts of foaming agent, 2-4 parts of composite water repellent and 0.03-0.06 part of stabilizer; the composite water repellent comprises the following raw materials in parts by mass: 2 parts of sodium methyl silanol and 1 part of calcium stearate; the stabilizer is composed of the following raw materials in parts by mass: 2 parts of methyl cellulose and 2 parts of starch ether.
7. The hydrophobic heat-preservation foam concrete prefabricated part according to claim 6, wherein the composite foaming agent is prepared from the following raw materials in parts by mass: 6 parts of foaming agent, 4 parts of composite water repellent and 0.06 part of stabilizer.
8. The hydrophobic, heat-insulating, foamed concrete prefabricated part according to claim 1, wherein said graphite-modified polyphenyl particles satisfy: the density is less than or equal to 25 kg/m3The particle size is 1.5-4.5 mm, the volume water absorption is less than or equal to 2.0%, the heat conductivity is less than or equal to 0.030W/(m.K), and the combustion performance grade is B1 or above.
9. The hydrophobic heat-insulating foam concrete precast element according to claim 8, wherein the inorganic fiber mesh cloth is a carbon fiber mesh cloth, a basalt fiber mesh cloth, a glass fiber mesh cloth or an anti-rust steel wire mesh sheet; the inorganic fiber mesh cloth satisfies the following conditions: the tensile strength of the fiber is more than or equal to 3000 MPa, the elastic modulus is more than or equal to 45 GPa, the elongation at break is more than or equal to 2.5 percent, the highest working temperature is more than or equal to 600 ℃, the size of the grid cloth spacer mesh is 20-50 mm, and the diameters of the warp and weft are 1-2.5 mm; wherein, the surface of the steel wire mesh sheet is subjected to hot galvanizing rust-proof treatment, and the diameter of the steel wire is 2-4 mm.
10. The method for preparing a hydrophobic heat-insulating foam concrete prefabricated part according to any one of claims 1 to 9, characterized by comprising the following steps:
step (1): weighing the components in proportion, firstly adding the portland cement, the mineral admixture and the inorganic short fiber into a stirrer, and stirring for 1-2 min until the components are uniformly mixed;
step (2): weighing a water reducing agent, water and a coagulant according to a ratio, dissolving the water reducing agent and the coagulant in water, pouring the water reducing agent and the coagulant into the stirrer in the step (1), and stirring for 5-10 min to form slurry;
and (3): foaming the composite foaming agent to prepare stable and uniform foam;
and (4): stirring and mixing the slurry obtained in the step (2) and the foam obtained in the step (3) according to the volume ratio of 1: 75-90 to prepare foam concrete slurry;
and (5): adding graphite modified polyphenyl particles into the foam concrete slurry obtained in the step (4), and stirring to obtain hydrophobic heat-preservation foam concrete slurry;
and (6): assembling a prefabricated part mould, pre-stretching inorganic fiber mesh cloth into the prefabricated part mould in multiple layers, wherein the distance between the inorganic fiber mesh cloth and the bottom surface of the prefabricated part is 10 mm after the first layer of inorganic fiber mesh cloth is pre-stretched, the distance between each layer of pre-stretched fiber mesh cloth is 20-30 mm, and the number of layers of the pre-stretched inorganic fiber mesh cloth is determined by the thickness of the prefabricated part;
and (7): and (4) injecting the hydrophobic heat-preservation foam concrete slurry obtained in the step (5) into the prefabricated part mould obtained in the step (6), leveling the surface, carrying out standard maintenance on the mould for 24-48 h, then demoulding, and then carrying out maintenance for 27-30 d to obtain the hydrophobic heat-preservation foam concrete prefabricated part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111344704.7A CN114014694A (en) | 2021-11-15 | 2021-11-15 | Hydrophobic heat-preservation foam concrete prefabricated part and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111344704.7A CN114014694A (en) | 2021-11-15 | 2021-11-15 | Hydrophobic heat-preservation foam concrete prefabricated part and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114014694A true CN114014694A (en) | 2022-02-08 |
Family
ID=80063883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111344704.7A Pending CN114014694A (en) | 2021-11-15 | 2021-11-15 | Hydrophobic heat-preservation foam concrete prefabricated part and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114014694A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385631A (en) * | 2022-08-30 | 2022-11-25 | 中铁建设集团南方工程有限公司 | Foam concrete precast slab for protecting waterproof layer and preparation method and installation method thereof |
| WO2023168187A1 (en) * | 2022-03-02 | 2023-09-07 | United States Gypsum Company | Inorganic panels with volcanic rock based reinforcement and methods for making same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043963A (en) * | 2012-09-12 | 2013-04-17 | 万华节能科技集团股份有限公司 | Inorganic foam material for joint sealing of wall thermal insulation system and preparation method of inorganic foam material |
| CN103089118A (en) * | 2012-10-31 | 2013-05-08 | 河南永立建材有限公司 | Fireproof foam concrete door core plate and preparation method thereof |
| CN104448379A (en) * | 2014-10-30 | 2015-03-25 | 天津和悦国际贸易有限公司 | Method for preparing high-flame-retardancy and low-thermal-conductivity graphite expandable polystyrene (EPS) bead material through polystyrene |
| CN104774033A (en) * | 2015-04-08 | 2015-07-15 | 西南科技大学 | General purpose Portland cement based ultra-light physical foamed concrete |
| CN105367115A (en) * | 2015-10-23 | 2016-03-02 | 潍坊德霖建材科技有限公司 | Ultra-low-density foamed concrete and preparation method |
| CN105804315A (en) * | 2016-05-14 | 2016-07-27 | 唐山冀东发展集成房屋有限公司 | Steel wire mesh and fiber enhanced integrated foam concrete lightweight wall plate and manufacturing method thereof |
| CN106966624A (en) * | 2017-03-01 | 2017-07-21 | 安徽筑丰节能建材有限公司 | A kind of shell-shaped insulation lightweight aggregate and preparation method thereof |
| CN111807807A (en) * | 2020-07-29 | 2020-10-23 | 中南大学 | Non-autoclaved lightweight heat-insulating particle aerated concrete block and preparation method thereof |
| CN112500077A (en) * | 2020-12-14 | 2021-03-16 | 北京砼筑新材料科技有限公司 | Emulsion modified foamed concrete and preparation method and application thereof |
| CN113264717A (en) * | 2021-06-11 | 2021-08-17 | 东北大学 | Large-mixing-amount solid waste base-activated foam concrete and preparation method thereof |
-
2021
- 2021-11-15 CN CN202111344704.7A patent/CN114014694A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103043963A (en) * | 2012-09-12 | 2013-04-17 | 万华节能科技集团股份有限公司 | Inorganic foam material for joint sealing of wall thermal insulation system and preparation method of inorganic foam material |
| CN103089118A (en) * | 2012-10-31 | 2013-05-08 | 河南永立建材有限公司 | Fireproof foam concrete door core plate and preparation method thereof |
| CN104448379A (en) * | 2014-10-30 | 2015-03-25 | 天津和悦国际贸易有限公司 | Method for preparing high-flame-retardancy and low-thermal-conductivity graphite expandable polystyrene (EPS) bead material through polystyrene |
| CN104774033A (en) * | 2015-04-08 | 2015-07-15 | 西南科技大学 | General purpose Portland cement based ultra-light physical foamed concrete |
| CN105367115A (en) * | 2015-10-23 | 2016-03-02 | 潍坊德霖建材科技有限公司 | Ultra-low-density foamed concrete and preparation method |
| CN105804315A (en) * | 2016-05-14 | 2016-07-27 | 唐山冀东发展集成房屋有限公司 | Steel wire mesh and fiber enhanced integrated foam concrete lightweight wall plate and manufacturing method thereof |
| CN106966624A (en) * | 2017-03-01 | 2017-07-21 | 安徽筑丰节能建材有限公司 | A kind of shell-shaped insulation lightweight aggregate and preparation method thereof |
| CN111807807A (en) * | 2020-07-29 | 2020-10-23 | 中南大学 | Non-autoclaved lightweight heat-insulating particle aerated concrete block and preparation method thereof |
| CN112500077A (en) * | 2020-12-14 | 2021-03-16 | 北京砼筑新材料科技有限公司 | Emulsion modified foamed concrete and preparation method and application thereof |
| CN113264717A (en) * | 2021-06-11 | 2021-08-17 | 东北大学 | Large-mixing-amount solid waste base-activated foam concrete and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张巨松等: "《泡沫混凝土》", 31 January 2016 * |
| 陈志远等: "《土木工程材料》", 31 August 2020 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023168187A1 (en) * | 2022-03-02 | 2023-09-07 | United States Gypsum Company | Inorganic panels with volcanic rock based reinforcement and methods for making same |
| CN115385631A (en) * | 2022-08-30 | 2022-11-25 | 中铁建设集团南方工程有限公司 | Foam concrete precast slab for protecting waterproof layer and preparation method and installation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113264717B (en) | Large-mixing-amount solid waste base-activated foam concrete and preparation method thereof | |
| CN107417202B (en) | Foam concrete for wall sandwich layer and preparation method and application thereof | |
| CN114014694A (en) | Hydrophobic heat-preservation foam concrete prefabricated part and preparation method thereof | |
| CN107188509A (en) | A kind of lightweight water-resistant gypsum board and preparation method thereof | |
| CN103317789B (en) | Thick-plaster fireproof mortar phenolic resin plate and phenolic aldehyde special-purpose fireproof mortar | |
| CN110590301A (en) | Foam concrete composition for self-insulation energy-saving wallboard, foam concrete for self-insulation energy-saving wallboard and self-insulation energy-saving wallboard | |
| CN107522439B (en) | Foam concrete and application thereof in producing light waterproof batten | |
| CN114853439A (en) | Phosphogypsum-based fireproof door core board and preparation process thereof | |
| CN113387666B (en) | Composite aerated wallboard and manufacturing process thereof | |
| CN107216105A (en) | A kind of lightweight water-resistant gypsum board and preparation method thereof | |
| CN106116422B (en) | A kind of light hollow thermal insulation board and preparation method thereof | |
| CN112321237A (en) | Solid waste fly ash high-strength foam concrete and preparation method thereof | |
| CN111825414A (en) | High-temperature-resistant green multi-layer fireproof plate and manufacturing method thereof | |
| CN109437802B (en) | Sulphoaluminate cement assembled integrated inner wall and preparation method thereof | |
| CN115650679B (en) | Light foam concrete and preparation method thereof | |
| CN108975810A (en) | A kind of fire-retardant foam concrete material and preparation method thereof | |
| CN112940444B (en) | Energy-saving environment-friendly building curtain wall and installation method thereof | |
| CN108383450A (en) | A kind of building block formula of heat insulating and sound insulating | |
| CN114685183A (en) | Light foaming filling method | |
| Zhao et al. | Preparation and characterization of a fly ash and cement-based foam composite | |
| CN105367115A (en) | Ultra-low-density foamed concrete and preparation method | |
| CN205116540U (en) | Real core wallboard of calcium silicate board polyphenyl particle composite | |
| CN111519827A (en) | Composite technology based on application of various products in field of assembled building boards | |
| CN111777372A (en) | High-strength fiber reinforced foamed cement insulation board and preparation method thereof | |
| CN115466084B (en) | High-specific-strength light EPS heat-insulation concrete material for 3D printing and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220208 |