CN111379374A - Self-heat-preservation ceramsite concrete assembled outer wall - Google Patents
Self-heat-preservation ceramsite concrete assembled outer wall Download PDFInfo
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- CN111379374A CN111379374A CN201911094523.6A CN201911094523A CN111379374A CN 111379374 A CN111379374 A CN 111379374A CN 201911094523 A CN201911094523 A CN 201911094523A CN 111379374 A CN111379374 A CN 111379374A
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- 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
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
- E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Abstract
The invention discloses a self-heat-insulation ceramsite concrete assembled outer wall which can be directly used as an assembled outer wall. The heat-insulating layer has good continuity, and the cold bridge phenomenon existing in the traditional combined heat-insulating plate does not exist. It is characterized by that it is formed from three-layer structure, two sides of the described external surface layer and middle portion are heat-insulatingThe layers are fused and transited, the outside layers at two sides are respectively provided with meshes, the outside layers are also provided with hidden beam steel bars, the hidden beam steel bars are distributed and arranged according to determined intervals, the hidden beam steel bars at corresponding positions on the outside layers at two sides are connected through tie bars, the outside layer and the middle heat-insulating layer are both made of cement-based materials, the outside layer adopts ceramsite concrete, and the dry density is 1500-2000kg/m3The determined distance is determined according to the maximum bending distance of the outer wall in the starting process, and the mesh size of the mesh is 50-300 mm.
Description
Technical Field
The invention discloses a self-heat-insulation ceramsite concrete assembled outer wall, relates to a self-heat-insulation assembled wall capable of being directly used as an assembled outer wall and a preparation method thereof, and belongs to the field of building engineering. In particular to an assembled external wall body which changes the dry density by utilizing self-leveling concrete and matching with the way that ceramsite is filled in a middle heat-insulating layer to increase the foam and a preparation method thereof.
Background
The building formed by assembling prefabricated components on a construction site is called as an assembly type building, the assembly type building is widely applied due to the advantages of high construction speed and low production cost, the assembly type heat-insulation external wall panel is used as an industrial prefabricated component due to the self-contained heat-insulation and sound-insulation function, meanwhile, the external insulation board of the outer wall can be eliminated, the advantages of greatly saving the building cost, labor input and the like are achieved, the heat direction in the prefabricated member is researched, at present, one of the existing self-insulation assembled outer wall is formed by filling concrete and foaming agent into a mould through a plate-shaped mould, the preparation process is complex, the filling and vibrating are carried out after the mould is erected, the trouble and the labor are wasted, this kind of structure is connected through the lacing wire at middle part for the cold bridge appears in the heated board, and thermal insulation performance is inhomogeneous, seriously influences the performance of heated board, and installs fixed back, need brush the decorative layer on the outer wall.
And a sealing structure is arranged at the outer edge of the heat-insulating plate, so that the heat-insulating performance is poor in overall consistency after the assembly and combination are also realized, the overall weight is increased, and the heat-insulating effect between the heat-insulating plate and the composite plate is discontinuous due to the wrapping of the outer layer.
Publication No. CN109797876A discloses an energy-concerving and environment-protective type heat preservation wallboard for building outer wall face, relates to the heat preservation wallboard field. This an energy-concerving and environment-protective type heat preservation wallboard for building outer wall face, including outer layer body A, inner layer body and outer layer body B, the inner layer body is located between outer layer body A and the outer layer body B, outer layer body A bonds together with the front of inner layer body, outer layer body B bonds together with the back of inner layer body, is provided with a plurality of kerfs and a plurality of water storage chamber respectively in the front of inner layer body, and the water storage chamber sets up in the left side of kerfs, is provided with the rubber ring on the inner wall on kerfs right side, and this mode adopts the modular structure to prepare, can not carry out holistic preparation of pouring to the wall body, need rely on the wall body to lay when the operation, and is inefficient. Publication No. CN109797904A discloses a pressure-adaptive energy-saving thermal-insulation wallboard for buildings, which comprises a hollow outer frame, compensation mechanisms, fillers, butt-joint grooves and butt-joint strips, wherein the compensation mechanisms are arranged in the inner cavity of the hollow outer frame at equal intervals, and the fillers are filled between the hollow outer frame and the compensation mechanisms; the compensation mechanism comprises a compensation strip, a heat absorption plate and a pressure balance strip, wherein the bottom of the heat absorption plate is fixedly welded with the top of the compensation strip, and the pressure balance strip is movably arranged in an inner cavity of the compensation strip. Publication number CN109403480A discloses a composite environment-friendly insulation board, which comprises melamine glue, the both sides of melamine glue bottom all are provided with anti-skidding support bars, and the top of melamine glue is provided with magnesium gel material, the top of magnesium gel material is provided with light insulation material, and the top of light insulation material is provided with glass fiber cloth, the top of glass fiber cloth is provided with polyurethane board, and polyurethane board top and bottom all evenly are provided with the fixture block. The two types of boards are also of board structures, and need to be assembled and combined one by one, so that the construction operation is time-consuming and labor-consuming, the efficiency is low, and the process is complicated. Publication No. CN104594522B discloses a prefabricated external wall panel, which comprises an external decorative layer, a heat insulation material layer, a concrete structural layer and connecting pieces; the outer decorative layer, the heat insulation material layer and the concrete structural layer are sequentially layered; the connecting piece is fixed on the outer decorative layer, penetrates through the heat-insulating material layer and is embedded and anchored in the concrete structural layer, the outer wall structure in the form is connected through the connecting piece, a cold bridge is formed in the middle, heat-insulating balance cannot be guaranteed, and heat-insulating performance is poor.
Disclosure of Invention
In order to improve the situation, the self-heat-insulation ceramsite concrete assembled outer wall can be directly used as an assembled outer wall, and dry density change is carried out by utilizing self-leveling concrete and matching with a middle heat-insulation layer filled with ceramsite to increase foam.
The invention relates to a self-heat-insulation ceramsite concrete assembled outer wall which is realized by the following steps: the self-heat-preservation ceramsite concrete assembled outer wall body is composed of three layers of structures, wherein the outer surface layers on two sides and the middle heat-preservation layer are in fusion transition, meshes are respectively arranged in the outer surface layers on two sides, hidden beam steel bars are also arranged in the outer surface layers and are distributed according to determined intervals, and the hidden beam steel bars at corresponding positions on the outer surface layers on two sides are connected through tie bars;
the outer surface layer and the middle heat-insulating layer are both made of cement-based materials, the outer surface layer is made of ceramsite concrete, and the dry density is 1500-3；
The determined hidden beam distance is determined according to the maximum bending distance in the hoisting process of the outer wall body;
the mesh size of the mesh sheet is 50-300 mm;
when the mesh size of the mesh is smaller than 50mm, the manufacturing cost is increased, and when the mesh size of the mesh is larger than 300mm, the integrity of the outer wall body is poor;
the diameter of the hidden beam steel bar is phi 8-phi 16 mm;
the thickness of the outer surface layers on the two sides is 30-70 mm;
when the thickness of the outer surface layer is smaller than 30mm, the outer surface layer cannot be manufactured, and when the thickness of the outer surface layer is larger than 50mm and smaller than 70mm, the outer surface layer can be used as a low-rise assembled bearing wall;
the thickness of the middle heat-insulating layer is 50-150 mm;
the thickness of the middle heat-insulating layer is less than 60 mm, and the heat-insulating property of the wall body in the region north of Jianghuai is insufficient;
the thickness of the middle heat-insulating layer is more than 150mm, and the increase of the wall thickness has no substantial significance;
the middle heat-insulating layer is prepared by adopting foamed concrete, and the dry density is 300-3；
The tie bars are made of fiber reinforced steel bars;
the external-layer ceramsite concrete comprises: 42.5 parts of cement; 0.08-0.12 part of fly ash, preferably 0.1 part; 0.8 part of slag powder; 2-2.3 parts of medium coarse sand; 1-1.2 parts of ceramsite; 1.5 percent of high-efficiency water reducing agent liquid hydroxyl; the thickening and water retention of cellulose is 0.05 percent of that of cement; the cement is used in a mass ratio of 0.3-0.4; the grain size of the ceramsite is less than 20 mm; the water-cement ratio is 0.34-0.35;
the middle heat-insulating layer comprises: 1 portion of cement, 0.08-0.2 portion of fly ash, 0.01-0.02 portion of calcium formate, 0.015 portion of water reducing agent, and foam formed by high-speed stirring of a surfactant, wherein the water-cement ratio is 0.28-0.35, and fibers and/or ceramsite can be added.
Further, the external-layer ceramsite concrete is replaced by fine aggregate concrete;
furthermore, the middle heat-insulating layer is replaced by foamed ceramsite concrete;
furthermore, when the inner wall is used, the lacing wire is made of common steel bars.
The invention also relates to a preparation method of the self-heat-preservation ceramsite concrete assembled outer wall body, which comprises the following steps:
1) designing a mould according to the size and the thickness of the designed wall surface, then pre-supporting the mould, and finishing the laying of the two layers of net sheets and the corresponding hidden beam reinforcing steel bars;
2) hoisting reinforcing steel bars are pre-embedded in unfoamed concrete,
3) pouring ceramsite concrete of the outer surface layer at the bottom of the mold along the mesh sheet to reach the designed thickness to form a first outer surface layer;
4) pouring the foamed concrete of the middle heat-insulating layer into a mold to reach the designed thickness to form the middle heat-insulating layer;
5) pouring ceramsite concrete again to reach the designed thickness to form a second outer surface layer;
6) demolding and maintaining;
7) and fixing and tensioning the hidden beam through a lacing wire.
Has the beneficial effects.
Firstly, the heat preservation layer has good continuity, and the cold bridge phenomenon existing in the prior combined heat preservation plate does not exist.
And secondly, the particle size of the ceramsite is smaller than that of the existing ceramsite, and the ceramsite can be effectively blended into the slurry to form mixing.
Thirdly, the double doping of the fly ash and the mineral powder in the non-foaming ceramsite concrete ingredient at the outer layer is beneficial to realizing self-leveling.
And fourthly, the use of the high-efficiency water reducing agent can reduce the water consumption to the maximum extent while realizing self-leveling, and improve the strength and the anti-cracking capability of the material.
And fifthly, the coal ash and the mineral powder are mixed together, so that the heat productivity of the ceramsite concrete during solidification can be reduced, the self-shrinkage of the concrete due to hardening and heating can be reduced, and the cracking can be reduced.
And sixthly, each layer of material is a cement-based material, the interface cohesiveness is good, and manpower is greatly saved in the manufacturing process of self-leveling.
Drawings
FIG. 1 is a three-dimensional structure diagram of the self-insulation ceramsite concrete assembled outer wall body.
In the attached drawings
Wherein the parts are: the composite heat-insulating plate comprises an outer surface layer (1), a net sheet (2), hidden beam steel bars (3), a middle heat-insulating layer (4) and tie bars (5).
The specific implementation mode is as follows:
the invention relates to a self-heat-insulation ceramsite concrete assembled outer wall which is realized by the following steps: the self-insulation ceramsite concrete assembled outer wall body is composed of three layers of structures, outer surface layers (1) on two sides and a middle insulation layer (4) are in fusion transition, net pieces (2) are respectively arranged in the outer surface layers (1) on the two sides, hidden beam steel bars (3) are also arranged in the outer surface layers (1), the hidden beam steel bars (3) are distributed and arranged according to determined intervals, and the hidden beam steel bars (3) at corresponding positions on the outer surface layers (1) on the two sides are connected through tie bars (5);
the outer surface layer (1) and the middle heat-insulating layer (4) are both made of cement-based materials, the outer surface layer (1) is made of ceramsite concrete, and the dry density is 1500-2000kg/m3；
The determined hidden beam distance is determined according to the maximum bending distance in the hoisting process of the outer wall body;
the mesh size of the mesh (2) is 50-300 mm;
when the mesh size of the mesh (2) is larger than 300mm, the integrity of the outer wall body is poor;
the diameter of the hidden beam steel bar (3) is phi 8-phi 16 mm;
the thickness of the two side outer surface layers (1) is 30-70 mm;
when the thickness of the outer surface layer (1) is less than 30mm, the outer surface layer cannot be manufactured, and when the thickness of the outer surface layer (1) is more than 50mm and less than 70mm, the outer surface layer can be used as a low-rise assembled bearing wall;
the thickness of the middle heat-insulating layer (4) is 50-150 mm;
the thickness of the middle heat-insulating layer (4) is less than 60 mm, and the heat-insulating property of the wall body in the region of the area north of Jianghuai is insufficient; the thickness of the middle heat-insulating layer (4) is more than 150mm, and the increase of the wall thickness has no substantial significance;
the middle heat-insulating layer (4) is prepared by adopting foamed concrete, and the dry density is 300-3；
The tie bars (5) are made of fiber reinforced steel bars;
the ceramsite concrete of the outer surface layer (1) comprises: 42.5 parts of cement; 0.1 part of fly ash; 0.8 part of slag powder; 2-2.3 parts of medium coarse sand; 1-1.2 parts of ceramsite; 1.5 percent of high-efficiency water reducing agent liquid hydroxyl; the thickening and water retention of cellulose is 0.05 percent of that of cement; the cement is used in a mass ratio of 0.3-0.4; the grain size of the ceramsite is less than 20 mm; the water-cement ratio is 0.34-0.35;
the middle heat-insulating layer (4) comprises: 1 portion of cement, 0.08-0.2 portion of fly ash, 0.01-0.02 portion of calcium formate, 0.015 portion of water reducing agent, and foam formed by high-speed stirring of a surfactant, wherein the water-cement ratio is 0.28-0.35, and fibers and/or ceramsite can be added.
Further, the ceramsite concrete of the outer surface layer (1) is replaced by fine aggregate concrete;
furthermore, the middle heat-insulating layer (4) is replaced by foamed ceramsite concrete;
furthermore, when the inner wall is used, the tie bars (5) are made of common steel bars.
The invention also relates to a preparation method of the self-heat-preservation ceramsite concrete assembled outer wall body, which comprises the following steps:
1) designing a mould according to the size and the thickness of the designed wall surface, pre-supporting the mould, and paving two layers of net sheets (2) and corresponding hidden beam steel bars (3);
2) the hoisting reinforcing steel bars are pre-embedded to pre-embed the reinforcing steel bars in the unfoamed concrete,
3) pouring ceramsite concrete of the outer surface layer (1) at the bottom of the mould along the net piece (2) to reach the designed thickness to form a first outer surface layer (1);
4) pouring the foamed concrete of the middle heat-insulating layer (4) into a mould to reach the designed thickness to form the middle heat-insulating layer (4);
5) pouring ceramsite concrete again to reach the designed thickness to form a second outer surface layer (1);
6) demolding and maintaining;
7) the hidden beam is fixed and tensioned through a lacing wire (5).
The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Claims (17)
1. The utility model provides a self preservation temperature haydite concrete assembled outer wall body, the outer wall body comprises three layer construction, its characterized in that both sides fuse the transition between outside layer and the middle part heat preservation, have put the net piece in the outside layer of both sides respectively, still are provided with the hidden beam reinforcing bar in the outside layer, the hidden beam reinforcing bar sets up according to confirming interval distribution, connects through the lacing wire between the hidden beam reinforcing bar of corresponding position on the outside layer of both sides.
2. The self-heat-preservation ceramsite concrete assembled outer wall is composed of three layers of structures and is characterized in that the self-heat-preservation ceramsite concrete assembled outer wall can be directly used as an assembled outer wall, self-leveling concrete is utilized, and ceramsite is filled in a middle heat-preservation layer to increase foam so as to change dry density.
3. The self-insulation ceramsite concrete assembled outer wall as claimed in claim 1 or 2, wherein the outer surface layer and the middle insulation layer are both made of cement-based materials, the outer surface layer is made of ceramsite concrete, and the dry density is 1500-3。
4. The self-insulation ceramsite concrete assembled outer wall body according to claim 1, wherein the determined distance between the hidden beams is determined according to the maximum bending moment of the outer wall body in the hoisting process.
5. The self-insulation ceramsite concrete assembled outer wall body as claimed in claim 1, wherein the mesh size of the mesh is 50-300 mm.
6. The self-insulation ceramsite concrete assembled outer wall body according to claim 1 or 3, wherein the diameter of the hidden beam steel bars is phi 8-phi 16 mm.
7. The self-insulation ceramsite concrete assembled outer wall body as claimed in claim 1, wherein the thickness of the outer surface layers on the two sides is 30-70 mm.
8. The self-insulation ceramsite concrete assembled outer wall as claimed in any one of claims 1 to 3, wherein the thickness of the middle insulation layer is 50-150 mm.
9. The self-insulation ceramsite concrete assembled outer wall as claimed in claim 8, wherein the middle insulation layer is made of foamed concrete with a dry density of 300-3。
10. The self-insulation ceramsite concrete assembled outer wall body according to claim 1, wherein the tie bars are made of fiber reinforced steel bars.
11. The self-insulation ceramsite concrete assembled external wall as claimed in claim 1, wherein the self-insulation ceramsite concrete assembled external wall is characterized in that
The external-layer ceramsite concrete comprises: 42.5 parts of cement; 0.1 part of fly ash; 0.8 part of slag powder; 2-2.3 parts of medium coarse sand; 1-1.2 parts of ceramsite; 1.5 percent of high-efficiency water reducing agent liquid hydroxyl; the thickening and water retention of cellulose is 0.05 percent of that of cement; the cement is used in a mass ratio of 0.3-0.4; the grain size of the ceramsite is less than 20 mm; the water-cement ratio is 0.34-0.35.
12. The self-insulation ceramsite concrete assembled outer wall body as claimed in claim 1, wherein the middle insulation layer comprises: 1 part of cement, 0.08-0.2 part of fly ash, 0.01-0.02 part of calcium formate, 0.015 part of water reducing agent and foam formed by stirring a surfactant at a high speed, wherein the water-cement ratio is 0.28-0.35.
13. The self-insulation ceramsite concrete assembled outer wall body according to claim 12, wherein fibers and/or ceramsite can be added.
14. The self-insulation ceramsite concrete assembled outer wall body according to claim 3, wherein the ceramsite concrete of the outer surface layer is replaced by fine aggregate concrete.
15. The self-insulation ceramsite concrete assembled outer wall as claimed in any one of claims 1 to 3, wherein the middle insulation layer is replaced by foamed ceramsite concrete.
16. The self-insulation ceramsite concrete assembled outer wall body according to claim 1, wherein when the self-insulation ceramsite concrete assembled outer wall is used as an inner wall, the tie bars are made of common steel bars.
17. A preparation method of a self-heat-insulation ceramsite concrete assembled outer wall body comprises the following steps:
1) designing a mould according to the size and the thickness of the designed wall surface, then pre-supporting the mould, and finishing the laying of the two layers of net sheets and the corresponding hidden beam reinforcing steel bars;
2) hoisting reinforcing steel bars are pre-embedded in unfoamed concrete,
3) pouring ceramsite concrete of the outer surface layer at the bottom of the mold along the mesh sheet to reach the designed thickness to form a first outer surface layer;
4) pouring the foamed concrete of the middle heat-insulating layer into a mold to reach the designed thickness to form the middle heat-insulating layer;
5) pouring ceramsite concrete again to reach the designed thickness to form a second outer surface layer;
6) demolding and maintaining;
7) and fixing and tensioning the hidden beam through a lacing wire.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047685A (en) * | 2020-08-28 | 2020-12-08 | 江苏明麓新型材料制造有限公司 | Anti-seismic ceramsite light wallboard and production process thereof |
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