CN116950310A - Ceramsite concrete light external wall panel and preparation method thereof - Google Patents
Ceramsite concrete light external wall panel and preparation method thereof Download PDFInfo
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- CN116950310A CN116950310A CN202310971547.5A CN202310971547A CN116950310A CN 116950310 A CN116950310 A CN 116950310A CN 202310971547 A CN202310971547 A CN 202310971547A CN 116950310 A CN116950310 A CN 116950310A
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- external wall
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- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 21
- 238000004321 preservation Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 23
- 239000000919 ceramic Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 10
- 239000001913 cellulose Substances 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 239000004793 Polystyrene Substances 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 8
- 229920002223 polystyrene Polymers 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 4
- 229910052602 gypsum Inorganic materials 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical group OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 210000003195 fascia Anatomy 0.000 claims 1
- 239000004816 latex Substances 0.000 claims 1
- 229920000126 latex Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000003469 silicate cement Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011398 Portland cement Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920002978 Vinylon Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- -1 ceramsite Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of 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
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
-
- 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
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a ceramsite concrete light external wall panel and a preparation method thereof, and relates to the technical field of concrete wall panels. The ceramsite concrete external wall panel belongs to an enclosure structure and a heat preservation integrated wall panel, silicate cement and shield powder are adopted as cementing materials, ceramsite sand and the like are adopted as aggregates, the panel has the functions of a peripheral wall panel and an external wall heat preservation system, the panel is prefabricated and molded, external wall heat preservation is not required to be carried out after the panel is installed on a construction site, and the building requirement can be met by single use.
Description
Technical Field
The invention relates to the technical field of concrete wallboards, in particular to a ceramsite concrete light external wallboard and a preparation method thereof.
Background
The novel wall board which is common at present mainly comprises: PC structure wallboard, autoclaved aerated concrete slab, light batten for building partition, steel wire net frame polystyrene sandwich board, gypsum hollow batten, glass fiber reinforced cement light porous partition batten, metal surface sandwich board, paper surface gypsum board, fiber reinforced calcium silicate board, fiber reinforced low-alkalinity cement building flat board and vinylon fiber reinforced cement flat board. All the wall boards have the defects in the production and application links, such as: the production process requires high temperature and high pressure, has complex process, high cost and high energy consumption; low strength and poor durability; the large volume weight results in high construction cost of the fat beam and the fat column; poor heat preservation performance and poor energy-saving effect; the fireproof performance is poor; poor waterproof performance; poor sound insulation effect, etc. Therefore, when the wall board is practically applied to the assembled building, the two or more wall boards can only be combined, so that the construction efficiency is low, the period is long, the cost is high, and the material waste is serious.
Disclosure of Invention
In order to solve the technical problems, the invention provides the ceramsite concrete light external wall panel and the preparation method thereof, wherein the ceramsite concrete light external wall panel has high strength, good heat preservation and insulation, good waterproof performance and good durability, and does not have layering cracking or stripping.
In order to achieve the technical purpose, the invention adopts the following scheme:
the lightweight ceramsite concrete external wall panel comprises a first ceramsite concrete layer, a heat preservation layer, a second ceramsite concrete layer, a cold-drawn low carbon steel wire mesh and a cold-drawn low carbon steel wire truss, wherein the first ceramsite concrete layer is a bottom layer, the heat preservation layer is an intermediate layer, the second ceramsite concrete layer is an upper layer, the lower part and the upper part of the first ceramsite concrete layer and the upper part of the second ceramsite concrete layer are respectively paved with the cold-drawn low carbon steel wire truss, and the cold-drawn low carbon steel wire mesh is paved between the upper part of the first ceramsite concrete layer and the cold-drawn low carbon steel wire truss of the second ceramsite concrete layer.
The preparation method of the ceramsite concrete light external wall panel comprises the following steps:
s1, weighing raw materials according to a proportion, and placing the raw materials in a stirrer, adding water, mixing and stirring for 8-10 min;
s2, paving a first layer of ceramsite concrete: placing a cold-drawn low-carbon steel wire mesh at the bottom of a pre-prepared mould, then pouring the ceramsite concrete stirred by S1, pressing and strickling, vibrating out cement paste of the concrete, and uniformly mixing ceramsite into the concrete to form a first ceramsite concrete layer;
s3, paving a graphite polystyrene board heat-insulating layer: adding an insulation board on the ceramsite concrete layer, fixing two ends of the insulation board in the placing process, slightly extruding the middle part downwards to enable the insulation board to be placed downwards in a radian mode, and tapping the insulation board for fifteen seconds after placing in place to improve the bonding effect, so that an insulation layer is formed;
s4, paving a second layer of ceramsite concrete: placing a steel wire mesh on the heat preservation layer, pouring a second layer of ceramsite concrete, performing vibration finishing, and pressing to be smooth to form a second ceramsite concrete layer;
s5, demolding;
s6, placing the mixture into a curing kiln with the temperature of 40+/-5 ℃ and the humidity of more than 95% for secondary curing.
Further, the raw material components comprise: 300-500 parts of cement, 50-150 parts of shield powder, 100-200 parts of ceramsite, 100-200 parts of ceramic sand, 100-250 parts of medium sand, 1.2-2% of water reducer, 1.5-2.5 parts of fiber, 0.05-0.15% of cellulose and 0.1-0.25% of rubber powder.
Further, the shield powder is a mixture of steel slag, water slag and desulfurized gypsum, and is prepared by fine grinding, and the preferable granularity is below 300 meshes.
Further, the water reducer is a polycarboxylate water reducer.
Further, the fiber is alkali-resistant and crack-resistant.
Further, the cellulose was hydroxypropyl methylcellulose having a viscosity of 5 ten thousand Pa.s.
Further, the rubber powder is redispersible emulsion powder.
Compared with the prior art, the invention has the beneficial effects that:
1. the ceramsite concrete external wall panel belongs to an enclosure structure and a heat preservation integrated wall panel, silicate cement and shield powder are adopted as cementing materials, ceramsite, ceramic sand, middle sand and the like are adopted as aggregate, the panel has the functions of a peripheral wall panel and an external wall heat preservation system, the panel is prefabricated and molded, external wall heat preservation is not required after the panel is installed on a construction site, and the building requirement can be met by single use.
2. The haydite concrete is doped with rubber powder, fiber, cellulose, etc. to raise the durability, flexibility, packing performance of cold drawn low carbon steel wire net and adhesion performance to heat insulating layer.
3. The steel wire mesh used as a reinforcing material is added into the manufacturing material to play a role of a stress bar.
4. The ceramsite concrete external wall panel has the advantages of high impact resistance and bending load resistance, heat preservation, water resistance, fire resistance, durability and the like, is not easy to crack, can be directly sprayed with various coatings on the outer layer of the wall, can be directly nailed, pasted, perforated and the like on the wall, and is suitable for being used in a building.
5. Industrial waste residue-shield powder is used in the material preparation, and industrial waste is consumed.
Drawings
FIG. 1 is a schematic cross-sectional structure of a lightweight ceramsite concrete external wall panel provided by an embodiment of the invention;
marked in the figure as: 1. a first ceramsite concrete layer; 2. a heat preservation layer; 3. cold drawing a low carbon steel wire mesh; 4. a web rib; 5. and a second haydite concrete layer.
Detailed Description
The present invention will be described in detail with reference to the following embodiments for a full understanding of the objects, features and effects of the present invention, but the present invention is not limited thereto.
As shown in fig. 1, the lightweight ceramsite concrete external wall panel provided by the invention comprises a first ceramsite concrete layer 1, a heat preservation layer 2, a second ceramsite concrete layer 5, a cold-drawn low-carbon steel wire mesh 3 and web ribs 4 (cold-drawn low-carbon steel wire trusses), wherein the first ceramsite concrete layer 1 is the bottommost layer, the heat preservation layer 2 is the middle layer, and the second ceramsite concrete layer 5 is the uppermost layer. The lower part and the upper part of the first haydite concrete layer 1 and the upper part of the second haydite concrete layer 5 are respectively paved with cold-drawn low carbon steel wire trusses, and a cold-drawn low carbon steel wire screen 3 is paved between the cold-drawn low carbon steel wire trusses on the upper part of the first haydite concrete layer 1 and the cold-drawn low carbon steel wire trusses of the second haydite concrete layer 5.
Example 1
Raw materials: 300 parts of 42.5R Portland cement; 150 parts of shield powder; ceramic particle (spherical)Clay haydite with maximum grain size of 20mm and density of 230kg/m 3 150 parts of barrel pressure intensity of 1.5MPa and water absorption rate of 5%; ceramic sand (ball-type ceramic sand, density 340 kg/m) 3 ) 150 parts; 185 parts of water; 150 parts of medium sand; 1.5% of polycarboxylic acid high-efficiency water reducer; 0.25% of redispersible emulsion powder; cellulose 0.15%; chopped fiber (Density 2.701 g/cm) 3 Beam-like, 16 μm diameter, 22mm length, 1.948 ×10 breaking strength 3 MPa, elastic modulus 7.93×10 4 MPa) 2.5 parts.
The manufacturing process comprises the following steps:
s1, weighing the ingredients according to the proportion, placing the ingredients in a stirrer, and adding water to stir for 8-10 min.
S2, paving a first ceramsite concrete layer:
placing a cold-drawn low-carbon steel wire mesh at the bottom of a pre-prepared mould, then pouring the ceramsite concrete stirred by S1, pressing and strickling, vibrating out cement paste of the concrete, and preventing the phenomena of floating and layering of the ceramsite.
S3, paving a graphite polystyrene board heat-insulating layer:
and the thermal insulation materials such as the graphite polystyrene board and the extruded sheet are added, the two ends of the graphite polystyrene board are required to be fixed in the placing process, and the middle part is slightly extruded downwards, so that the graphite polystyrene board is placed downwards in a mode with a certain radian, and the graphite polystyrene board is tapped for fifteen seconds after being placed in place, so that the bonding effect is improved.
S4, paving a second ceramsite concrete layer:
placing cold-drawn low-carbon steel wire mesh sheets on the heat-insulating material, pouring the ceramsite concrete stirred in the step S1, adopting a flat vibrator to vibrate and arrange, and pressing to be smooth.
S5, demolding;
s6, placing the mixture into a curing kiln with the temperature of 40+/-5 ℃ and the humidity of more than 95% for secondary curing.
The ceramsite sand of the embodiment 1 is uniformly distributed, and the aggregate is fully wrapped by the slurry. The ceramsite concrete is prepared into the ceramsite concrete external wall panel with the strength grade of LC10 and the density grade of D1050.
Example 2
Raw materials: 350 parts of 42.5R Portland cement; 110 parts of shield powder; ceramic particle (spherical)Clay haydite with maximum grain size of 20mm and density of 230kg/m 3 135 parts of cylinder pressure intensity of 1.5MPa and water absorption rate of 5%; ceramic sand (ball-type ceramic sand, density 340 kg/m) 3 ) 115 parts; 170 parts of water; 150 parts of medium sand; 2% of a polycarboxylic acid high-efficiency water reducer; 0.18% of redispersible emulsion powder; cellulose (5 ten thousand) 0.1%; chopped fiber (Density 2.701 g/cm) 3 Beam-like, 16 μm diameter, 22mm length, 1.948 ×10 breaking strength 3 MPa, elastic modulus 7.93×10 4 MPa) 1.3 parts.
The preparation method is the same as in example 1.
The ceramsite and ceramsite sand of the embodiment 2 is used in proportion, the slurry coating property is good, bleeding and segregation phenomena are avoided, and the ceramsite and ceramsite sand is uniformly distributed. The ceramsite concrete is prepared into ceramsite concrete external wall panels with the strength grade of LC9.5 and the density grade of D1000.
Example 3
Raw materials: 400 parts of 42.5R Portland cement; 50 parts of shield powder; ceramsite (spherical clay ceramsite with maximum particle diameter of 20mm and density of 230 kg/m) 3 120 parts of cylinder with the pressure of 1.5MPa and the water absorption of 5 percent; ceramic sand (ball-type ceramic sand, density 340 kg/m) 3 ) 160 parts; 190 parts of water; 200 parts of medium sand; 2% of a polycarboxylic acid high-efficiency water reducer; 0.15% of redispersible emulsion powder; cellulose (5 ten thousand) 0.1%; chopped fiber (Density 2.701 g/cm) 3 Beam-like, 16 μm diameter, 22mm length, 1.948 ×10 breaking strength 3 MPa, elastic modulus 7.93×10 4 MPa) 2 parts.
The method of production of example 3 was the same as that of example 1.
The concrete slurry of example 3 is better in state, the ceramic sand proportion is more than that of ceramsite, the slurry is more compact and more uniform, and good fluidity and workability are maintained. The ceramsite concrete is prepared into ceramsite concrete external wall panels with the strength grade of LC12 and the density grade of D1100.
Comparative example
Raw materials: 450 parts of 42.5R Portland cement; ceramsite (spherical clay ceramsite with maximum particle diameter of 20mm and density of 230 kg/m) 3 150 parts of barrel pressure intensity of 1.5MPa and water absorption rate of 5%; ceramic sand (ball-type ceramic sand, density 340 kg/m) 3 ) 150 parts; 205 parts of water; 150 parts of medium sand; high-efficiency water-reducing polycarboxylic acid1.5% of agent; 0.25% of redispersible emulsion powder; cellulose 0.15%; chopped fiber (Density 2.701 g/cm) 3 Beam-like, 16 μm diameter, 22mm length, 1.948 ×10 breaking strength 3 MPa, elastic modulus 7.93×10 4 MPa) 2.5 parts.
The comparative example was prepared in the same manner as in example 1.
The water demand is increased in the mixing process of the concrete of the comparative example, the coating property of the slurry is relatively poor, and the phenomenon of slight floating of the ceramsite occurs. The ceramsite concrete is prepared into ceramsite concrete external wall boards with the strength grade of LC8.5 and the density grade of D1035.
The performance of the ceramsite concrete and the wallboard made of examples 1-3 and comparative examples according to the lightweight aggregate concrete JGJ/T12-2019 standard test is shown in the following table:
| example 1 | Example 2 | Example 3 | Comparative example | |
| Slump (mm) | 120 | 120 | 120 | 120 |
| Compressive strength (MPa) | 10 | 9.5 | 12 | 8.5 |
| Dry density (kg/m) 3 ） | 1050 | 1000 | 1100 | 1035 |
| Water absorption rate | 7.7% | 7.1% | 8.2% | 7.9% |
| Drying shrinkage value | 0.4 | 0.38 | 0.39 | 0.45 |
| Layering degree | 8.0 | 7.6 | 7.2 | 8.2 |
Finally, it should be noted that: the above list is only a preferred embodiment of the present invention, and it is understood that those skilled in the art can make modifications and variations thereto, and it is intended that the present invention be construed as the scope of the appended claims and their equivalents.
Claims (8)
1. The utility model provides a haydite concrete light side fascia, its characterized in that includes first haydite concrete layer, heat preservation, second haydite concrete layer, cold-drawn low carbon steel silk screen and cold-drawn low carbon steel silk truss, and first haydite concrete layer is the bottom, and the heat preservation is the intermediate level, and second haydite concrete layer is the upper strata, and cold-drawn low carbon steel silk truss is laid respectively to first haydite concrete layer's lower part and upper portion, second haydite concrete layer's upper portion, has laid cold-drawn low carbon steel silk screen between first haydite concrete layer's upper portion cold-drawn low carbon steel silk truss and the second haydite concrete layer cold-drawn low carbon steel silk truss.
2. A method for preparing the ceramsite concrete light external wall panel according to claim 1, which is characterized by comprising the following steps:
s1, weighing raw materials according to a proportion, and placing the raw materials in a stirrer, adding water, mixing and stirring for 8-10 min;
s2, paving a first layer of ceramsite concrete: placing a cold-drawn low-carbon steel wire mesh at the bottom of a pre-prepared mould, then pouring the ceramsite concrete stirred by S1, pressing and strickling, vibrating out cement paste of the concrete, and uniformly mixing ceramsite into the concrete to form a first ceramsite concrete layer;
s3, paving a graphite polystyrene board heat-insulating layer: adding an insulation board on the ceramsite concrete layer, fixing two ends of the insulation board in the placing process, slightly extruding the middle part downwards to enable the insulation board to be placed downwards in a radian mode, and tapping the insulation board for fifteen seconds after placing in place to improve the bonding effect, so that an insulation layer is formed;
s4, paving a second layer of ceramsite concrete: placing a steel wire mesh on the heat preservation layer, pouring a second layer of ceramsite concrete, performing vibration finishing, and pressing to be smooth to form a second ceramsite concrete layer;
s5, demolding;
s6, placing the mixture into a curing kiln with the temperature of 40+/-5 ℃ and the humidity of more than 95% for secondary curing.
3. The method for preparing the ceramsite concrete light external wall panel according to claim 2, wherein the raw material components comprise: 300-500 parts of cement, 50-150 parts of shield powder, 100-200 parts of ceramsite, 100-200 parts of ceramic sand, 100-250 parts of medium sand, 1.2-2% of water reducer, 1.5-2.5 parts of fiber, 0.05-0.15% of cellulose and 0.1-0.25% of rubber powder.
4. The method for preparing the lightweight external wall panel made of ceramsite concrete according to claim 3, wherein the shield powder is a mixture of steel slag, water slag and desulfurized gypsum, and is prepared by fine grinding.
5. The method for preparing the lightweight external wall panel made of ceramsite concrete according to claim 3, wherein the water reducer is a polycarboxylate water reducer.
6. The method for preparing the ceramsite concrete light external wall panel according to claim 3, wherein the fiber is alkali-resistant and crack-resistant fiber.
7. The method for preparing the lightweight external wall panel made of ceramsite concrete according to claim 3, wherein the cellulose is hydroxypropyl methylcellulose with a viscosity of 5 ten thousand Pa.s.
8. The method for preparing the lightweight external wall panel made of ceramsite concrete according to claim 3, wherein the rubber powder is redispersible latex powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310971547.5A CN116950310A (en) | 2023-08-03 | 2023-08-03 | Ceramsite concrete light external wall panel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310971547.5A CN116950310A (en) | 2023-08-03 | 2023-08-03 | Ceramsite concrete light external wall panel and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118184218A (en) * | 2024-03-26 | 2024-06-14 | 佛山市中安亿科新材料有限公司 | Heat preservation and insulation type wall panel based on bamboo wood fibers |
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2023
- 2023-08-03 CN CN202310971547.5A patent/CN116950310A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118184218A (en) * | 2024-03-26 | 2024-06-14 | 佛山市中安亿科新材料有限公司 | Heat preservation and insulation type wall panel based on bamboo wood fibers |
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