CN111962715A - Hollow outer wall body structure and preparation method thereof - Google Patents
Hollow outer wall body structure and preparation method thereof Download PDFInfo
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- CN111962715A CN111962715A CN202011025523.3A CN202011025523A CN111962715A CN 111962715 A CN111962715 A CN 111962715A CN 202011025523 A CN202011025523 A CN 202011025523A CN 111962715 A CN111962715 A CN 111962715A
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- 238000002360 preparation method Methods 0.000 title abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 239000004568 cement Substances 0.000 claims abstract description 31
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 27
- 239000010440 gypsum Substances 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 238000010276 construction Methods 0.000 claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 19
- 239000011426 gypsum mortar Substances 0.000 claims description 17
- 239000011083 cement mortar Substances 0.000 claims description 16
- 238000010079 rubber tapping Methods 0.000 claims description 14
- 239000011381 foam concrete Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 9
- 238000005336 cracking Methods 0.000 claims description 8
- 238000005187 foaming Methods 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims 1
- 239000011796 hollow space material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 239000006227 byproduct Substances 0.000 abstract description 11
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 4
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- 238000004321 preservation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/88—Insulating elements for both heat and sound
- E04B1/90—Insulating elements for both heat and sound slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
- E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
- E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
- E04B2/76—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Finishing Walls (AREA)
Abstract
The invention relates to a wall body of a hollow outer wall body structure and a preparation method thereof. The wall body is provided with an upper end beam of the wall body, a lower end beam of the wall body, an inner side wall surface of the wall body, an outer side wall surface of the wall body and a wall body cavity, the inner side wall body and the outer side wall body of the wall body are respectively made of gypsum base and cement base materials, and the middle of the wall body is in a cavity shape; the two materials are organically combined, so that the unification of energy conservation, fire prevention and sound insulation is achieved. The preparation method can realize the simplest construction method of the fabricated building, namely, the main structure is made of a concrete structure and a steel structure, and the wall body part comprises an inner side wall and an outer side wall which are made of light steel keels, steel wire meshes or fiber reinforced cement boards and filling materials. By the technical contribution of the invention, a large amount of gypsum which is a byproduct of the process can be consumed, waste is changed into valuable, the environment is purified, and the construction efficiency of the fabricated building is greatly improved.
Description
Technical Field
The invention relates to an assembled technical outer wall structure manufactured by using industrial byproduct gypsum as a raw material and a construction method, in particular to a hollow outer wall structure and a preparation method thereof.
Background
The annual production amount of industrial byproduct gypsum in China is about 1.84 hundred million tons, and the accumulated stockpiling amount exceeds 5 hundred million tons. But the comprehensive utilization rate of the newly increased production amount is only 48.1% every year, and the unused part can be only stocked in the open air. A large amount of gypsum waste residues are piled up, namely, a large amount of land is occupied; secondly, the investment of a storage yard is large, the operation cost is high, and the volume of the storage yard and the anti-seepage treatment requirement of the foundation are strict; thirdly, precious sulfur resources are wasted; and the contained acidity and other harmful substances are easy to cause pollution to the surrounding environment, and are not qualified with the environmental protection policy advocated by the state. The industrial by-product gypsum is an important regenerated gypsum resource, the main component of the industrial by-product gypsum is calcium sulfate (CaSO4 & 2H2O), the industrial by-product gypsum is an excellent cementing material, has the technical characteristics of early setting and quick hardening, fire resistance and energy conservation, is harmless to human bodies, and is suitable to be used as indoor decorative materials including wall materials. But at present, the cement retarder, the paper-surface plasterboard and the like are mainly used, the utilization amount is saturated, and the rising space is limited. Therefore, the development of gypsum as an industrial by-product for use in other fields of building materials is urgently needed.
At present, the country advocates assembly type building house technique vigorously, including assembled concrete structure, assembled steel construction, assembled timber structure to require that the non-bearing enclosure wall of building adopts non-masonry technique and enclosure wall and heat preservation, thermal-insulated integration. The known non-masonry type enclosure wall comprises various medium and large plates, curtain walls, wood frameworks or light steel framework composite walls and the like, and meets the requirements of factory production, field installation and dry construction.
The spray-built gypsum composite wall is a new technology developed by my department and is mainly used for non-bearing internal partition walls. As an assembly technology, if the spray-built gypsum composite wall is only manufactured on the inner partition wall, and the other building mode is adopted at the peripheral retaining wall part, the construction management is inconvenient. In addition, building energy conservation is a mandatory standard in the field of buildings in China, and the existing energy-saving mode of wall bodies in China is mainly to install a heat-preservation energy-saving system on the outer side or the inner side of an outer wall. The high-efficiency heat-insulating material has low strength, is inconvenient to use on the inner side of the outer wall, is easy to crack and fall off on the outer side of the outer wall, has insufficient fireproof grade, is easy to catch fire and threatens lives of residents.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hollow outer wall body structure and a preparation method thereof, wherein the functions of heat preservation, heat insulation, fire prevention, water prevention, sound insulation and shock resistance are integrated on the peripheral retaining wall body structure by utilizing the hollow wall body structure and the material characteristics of a gypsum base and a cement base, so that a large amount of industrial byproduct gypsum is consumed and the problems of energy conservation and emission reduction of house buildings are effectively solved on the premise of conforming to the assembly type construction technology.
Therefore, the technical scheme for solving the problems is as follows: a hollow outer wall body structure comprises an upper end beam of a wall body, a lower end beam of the wall body, an inner wall surface of the wall body, an outer wall surface of the wall body and a wall cavity, wherein the inner wall surface of the wall body is formed by a cage frame, a gypsum mortar filling layer and a leveling layer on the inner side in the vertical direction between the upper end beam and the lower end beam of the wall body; the outer side of the vertical direction between the upper end beam and the lower end beam of the wall body is provided with a light steel keel, a fiber reinforced cement board, a foamed concrete filling layer and a cement mortar leveling layer to form an outer side wall surface of the wall body; and a hollow part between the wall surface at the inner side of the wall body and the wall surface at the outer side of the wall body is a wall body cavity.
Furthermore, the cage frame is divided into an inner cage frame and an outer cage frame according to the inner wall surface and the outer wall surface of the wall body.
Furthermore, the cage frame is a whole body which comprises an upper guide rail, a lower guide rail, an upright post, a steel wire mesh, a bolt, a self-tapping screw, a shooting nail, a foaming strip and a sealant.
Furthermore, the wall surface on the inner side of the wall body is the whole wall body facing indoors, and is composed of an inner cage frame, a gypsum mortar filling layer, a gypsum mortar leveling layer and a glass fiber net.
Furthermore, the wall surface on the outer side of the wall body is the whole wall body facing outdoors, and is composed of an outer cage frame, a fiber reinforced cement board, a foamed concrete filling layer, a cement mortar leveling layer and a steel wire mesh.
Furthermore, the wall cavity is formed by enclosing the wall surface on the inner side of the wall body and the wall surface on the outer side of the wall body.
Furthermore, the wall body upper end beam and the wall body lower end beam are concrete structure layers or steel structure beams or floor top plate layers.
In addition, the preparation method of the hollow outer wall body structure comprises the following steps:
s1, selecting light steel keel upper and lower guide beams and upright columns with certain widths as cage frames of an outer wall, wherein the light steel keel upper and lower guide beams are parallel to the outer side of an upper end beam of the wall, fixing the light steel keel upper and lower guide beams with the upper and lower end beams of the wall by using expansion bolts, reserving a gap of 5-10mm between the light steel keel upper guide beam and the upper end beam of the wall, and arranging the light steel keel upper and lower guide beams on the same vertical surface;
s2, installing the light steel keel upright columns between the upper guide beam and the lower guide beam of the light steel keel by using self-tapping screws, and fixedly connecting the upright columns on two sides with the wall constructional columns by using expansion bolts to form an outer cage framework.
S3, installing fiber reinforced cement boards on two sides of the outer cage frame framework, connecting and fixing the fiber reinforced cement boards and the framework by self-tapping screws according to arrangement points, and blocking board seams to prevent leakage when pouring foamed concrete to form the outer cage frame;
s4, pouring foamed concrete into the cage frame from the upper part of the outer cage frame in a layered mode, and filling the outer cage frame to form an outer side wall filling layer;
s5, filling foaming strips or polyurethane foaming agents at joints of the upper guide rail of the light steel keel of the outer cage frame, the stand columns on two sides, the upper end beam of the wall body and the constructional column, filling the joints, and reserving partial space at the joints on the outer sides;
s6, selecting upper and lower guide rails and upright columns of a light steel keel with a certain width as an inner wall framework, fixing and combining the upper and lower guide beams and the upright columns on the ground by self-tapping screws to form an inner cage framework, and fixing a steel wire mesh on the outer side of the inner cage framework by screws to form an inner cage with a mesh;
s7, mounting the cage frame with the net on the inner side of the wall body, enabling the upper and lower guide beams and the upright columns on the two sides of the cage frame to be flush with the upper and lower end beams of the wall body, and connecting and fixing the inner cage frame with the upper and lower end beams and the constructional columns of the wall body by using expansion bolts;
s8, filling foaming strips or polyurethane foaming agents at joints of the upper and lower guide rails of the inner cage frame, the upright columns on two sides and the wall beams and columns, and filling gaps;
s9, installing a water and electricity pipe groove, a junction box and a wall body inner side member on the inner cage;
s10, spraying gypsum-based mortar to the steel wire mesh of the inner cage and leveling the gypsum-based mortar along the light steel keel on the inner cage to form an inner cage filling layer;
s11, paving steel wire mesh or glass fiber mesh cloth with the width of 250mm at the joints of the upper and lower guide rails of the inner cage frame, the upright columns on the two sides, the wall beams and the columns, and preventing the joints from cracking;
s12, plastering cakes and punching ribs on the filling layer of the inner cage frame and the upper and lower end beam sides of the wall body, and adjusting the wall surface flatness and the verticality of the gypsum mortar leveling layer in real time;
s13, spraying gypsum-based mortar on the filling layer of the inner cage frame and the upper and lower end beam sides of the wall body, and scraping and polishing along the screeding strips until the leveling layer of the gypsum mortar reaches the general plastering acceptance standard;
s14, filling the reserved space at the seam outside the outer cage frame with weather-resistant glue to prevent water seepage;
s15, paving and pasting a steel wire mesh with the width of 300mm at the joint of the outer side of the outer cage frame to prevent the joint from cracking; meanwhile, interface mortar is coated on the fiber reinforced cement board and the concrete structure in a scraping way to prevent hollowing and cracking of the cement mortar leveling layer;
s16, plastering cakes and punching ribs along the filling layer of the outer side wall and the outer sides of the upper end beam and the lower end beam of the wall body to control the wall surface flatness and the verticality of the cement mortar leveling layer;
s17, coating cement mortar (or cement waterproof mortar and cement polymer mortar) along the outer side wall filling layer and the outer sides of the upper end beam and the lower end beam of the wall body, and leveling until the leveling layer reaches the general plastering acceptance standard;
compared with the prior art, the invention has the following positive effects: for the external enclosure wall of the building, the wall structure can meet the functional requirements of the external wall on water resistance, fire resistance, heat preservation, heat insulation, sound insulation and the like, and the energy-saving efficiency can meet the requirements of cold in summer and hot winter, cold in summer and cold winter, warm in summer and hot winter and heat preservation of the external wall in a mild area; meanwhile, the cavity structure can meet the requirement of the outer wall body on the sound insulation effect; the preparation method can realize the simplest construction method of the fabricated building, namely, the main structure is made of a concrete structure and steel structural I-steel, and the enclosure part comprises an inner partition wall and an outer wall which are made of light steel keels, steel wire meshes or fiber reinforced cement boards, filling materials and leveling materials. By the technical contribution of the invention, a large amount of gypsum which is a byproduct of the process can be consumed, waste is changed into valuable, the environment is purified, and the construction efficiency of the fabricated building is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a hollow exterior wall construction;
in the figure: 1-upper end beam of wall, 2-lower end beam of wall (floor slab), 3-upper guide rail, 4-lower guide rail, 5-bolt, 6-column, 7-self tapping screw, 8-steel wire gauze, 9-fiber reinforced cement board, 10-shooting nail, 11-outer side wall surface steel wire gauze, 12-glass fiber gauze, 13-gypsum mortar filling layer and leveling layer, 14-foamed concrete, 15-cement mortar leveling layer and 16-wall cavity.
Detailed Description
Referring to fig. 1, the following embodiment describes in detail a hollow exterior wall structure and a method for manufacturing the same. Based on the principle of fully utilizing the industrial by-product gypsum to construct the wall of the whole building, the following technical scheme provides a brand-new design and construction scheme on the structure of the outer wall of the building. For example, the wall body of the hollow external wall body structure in the embodiment comprises an upper end beam 1 of the wall body, a lower end beam 2 of the wall body, an inner wall surface of the wall body formed by a cage frame and a gypsum mortar filling layer 13, an outer wall surface of the wall body formed by a fiber reinforced cement board 9, a foamed concrete filling layer 14, an outer side steel wire mesh 11 and a cement mortar leveling layer 15, and a wall body cavity 16; the cage frame in the embodiment is divided into an inner cage frame and an outer cage frame according to the inner and outer wall surfaces of the wall body; the whole inner cage frame comprises an upper guide rail 3, a lower guide rail 4, bolts 5, upright posts 6, a steel wire mesh 8, self-tapping screws 7 and a glass fiber mesh 12; the whole outer cage frame comprises an upper guide rail 3, a lower guide rail 4, bolts 5, upright posts 6, self-tapping screws 7, a fiber reinforced cement board 9, foamed concrete 14 and a cement mortar leveling layer 15. The gap between the upper guide rail 1 and the beam is filled with a foaming strip; in the embodiment, an inner wall surface on the inner side of the wall body is formed by an inner cage frame and a gypsum mortar filling layer 13 on the inner side in the vertical direction between the upper end beam 1 of the wall body and the lower end beam 2 of the wall body; furthermore, the wall surface on the inner side of the wall body is a whole wall body with one surface facing indoors and is composed of an inner cage frame, a gypsum mortar filling layer, a gypsum mortar leveling layer and a glass fiber net; the outer side of the vertical direction between the upper end beam 1 of the wall body and the lower end beam 1 of the wall body is composed of a double-faced fiber reinforced cement plate 9, an outer steel wire mesh 11, foamed concrete 14 and a cement mortar leveling layer 15, and further, the outer wall of the wall body in the embodiment is an outdoor whole wall body of the wall body and is composed of an outer cage frame, the double-faced fiber cement plate, a foamed concrete filling layer, a cement mortar leveling layer and the steel wire mesh; the hollow part between the wall surface at the inner side of the wall body and the wall surface at the outer side of the wall body is a wall body cavity 16, and further, the wall body cavity in the embodiment is formed by the hollow part between the inner wall surface and the outer wall surface; in practice, the upper end beam and the lower end beam of the wall body are concrete structure layers or steel structure beams or floor top plate layers.
According to the wall structure design of the above embodiment, the preparation method of the hollow outer wall structure comprises the following steps:
s1, selecting light steel keel upper and lower guide beams and upright columns with certain widths as cage frames of an outer wall, wherein the light steel keel upper and lower guide beams are parallel to the outer side of an upper end beam of the wall, fixing the light steel keel upper and lower guide beams with the upper and lower end beams of the wall by using expansion bolts, reserving a gap of 5-10mm between the light steel keel upper guide beam and the upper end beam of the wall, and arranging the light steel keel upper and lower guide beams on the same vertical surface;
s2, installing the light steel keel upright columns between the upper guide beam and the lower guide beam of the light steel keel by using self-tapping screws, and fixedly connecting the upright columns on two sides with the wall constructional columns by using expansion bolts to form an outer cage framework.
S3, installing fiber reinforced cement boards on two sides of the outer cage frame framework, connecting and fixing the fiber reinforced cement boards and the framework by self-tapping screws according to arrangement points, and sealing board seams by using glue to form the outer cage frame;
s4, pouring foamed concrete into the cage frame from the upper part of the outer cage frame, and filling the outer cage frame to form an outer side wall filling layer;
s5, filling foaming strips or polyurethane foaming agents at joints of the upper guide rail of the light steel keel of the outer cage frame, the stand columns on two sides, the upper end beam of the wall body and the constructional column, filling the joints, and reserving partial space at the joints on the outer sides;
s6, selecting light steel keel upper and lower guide rails and upright columns with certain widths as inner wall frameworks, fixing and combining the upper and lower guide rails and the upright columns on the ground by using self-tapping screws to form an inner cage framework, and fixing a steel wire mesh on the outer side of the inner cage framework by using shooting nails to form an inner cage with a mesh;
s7, installing the inner cage frame with the net on the inner side of the wall body, enabling the upper and lower guide beams and the upright columns on the two sides of the cage frame to be flush with the upper and lower end beams of the wall body, and connecting and fixing the inner cage frame with the upper and lower end beams and the constructional columns of the wall body by using expansion bolts;
s8, filling foaming strips or polyurethane foaming agents at joints of the upper and lower guide rails of the inner cage frame, the upright columns on two sides and the wall beams and columns, and filling gaps;
s9, installing a water and electricity pipe groove, a junction box and wall internal and external components on the inner cage;
s10, spraying gypsum-based mortar to the steel wire mesh of the inner cage and leveling the gypsum-based mortar along the light steel keel on the inner cage to form an inner cage filling layer;
s11, paving steel wire mesh or glass fiber mesh cloth with the width of 250mm at the joints of the upper and lower guide rails of the inner cage frame, the upright columns on the two sides, the wall beams and the columns, and preventing the joints from cracking;
s12, plastering cakes and punching ribs on the filling layer of the inner cage frame and the upper and lower end beam sides of the wall body so as to control the wall surface flatness and the verticality of the gypsum mortar leveling layer;
s13, spraying gypsum-based mortar on the filling layer of the inner cage frame and the upper and lower end beam sides of the wall body, and scraping and polishing along the screeding strips until the leveling layer of the gypsum mortar reaches the general plastering acceptance standard;
s14, filling the reserved space at the seam outside the outer cage frame with weather-resistant glue to prevent water seepage;
s15, paving and pasting a steel wire mesh with the width of 300mm at the joint of the outer side of the outer cage frame to prevent the joint from cracking;
s16, plastering cakes and punching ribs along the fiber reinforced cement boards of the outer side wall and the outer sides of the upper end beam and the lower end beam of the wall body to control the wall surface flatness and the verticality of the cement mortar leveling layer;
s17, performing interface treatment along the outer side wall filling layer and the outer sides of the upper end beam and the lower end beam of the wall body, then coating cement mortar or cement waterproof mortar and cement polymer mortar, and leveling until the leveling layer reaches the general plastering acceptance standard;
in summary, in the technical scheme of changing waste into valuable by using the process by-product gypsum, the hollow outer wall structure and the preparation method thereof can provide the technical standards of the enterprises for study and reference for the same industry in the industry, such as:
the wall body of the hollow outer wall body structure can be respectively filled with different materials so as to meet the requirements of different places on the materials, such as the inner side of a kitchen and toilet room with waterproof requirements, the outer side of the outer wall and the like, the side wall body can be made of cement-based materials with good water resistance, including mortar, concrete and the like, and gypsum-based materials with warming, humidity conditioning, breathing and fireproof functions can be adopted in places without waterproof requirements, such as the outer side of the kitchen and toilet room, the inner side of the outer wall and the like, so that a spray-built wall body complete solution is provided for the assembly type building technology.
Secondly, the wall body of this kind of cavity outer wall body structure, when the wall body cavity is the air bed, can provide splendid sound insulation effect, heat preservation and thermal-insulated effect and low cost, this is significant to the building outer wall in mild area, hot in summer and warm in winter area, hot in summer and cold in winter area.
Thirdly, this kind of wall body of cavity outer wall body structure has considered traditional process of plastering, different material seam crossing anti-cracking measures wherein, and has set up the wire net in the wall body is inside to through spouting building mortar layer, set up foaming agent filling layer, sealant layer accomplished the whole seamless connection of wall, but fundamentally solves inside and outside wall fracture, seepage water problem.
Claims (8)
1. A wall body of a hollow outer wall body structure is provided with a wall body upper end beam, a wall body lower end beam, a wall body inner side wall surface, a wall body outer side wall surface and a wall body cavity, and is characterized in that the inner side of the wall body in the vertical direction between the upper end beam and the wall body lower end beam is formed by a cage frame and a gypsum mortar filling layer; the outer side of the vertical direction between the upper end beam and the lower end beam of the wall body is provided with a double-faced fiber reinforced cement board, a foamed concrete filling layer, an outer side steel wire mesh and a cement mortar leveling layer to form an outer side wall surface of the wall body; the hollow space between the wall body inner side wall surface and the wall body outer side wall surface is a wall body cavity.
2. The wall body of a hollow external wall structure according to claim 1, wherein said cage is divided into an inner cage and an outer cage according to the inner and outer wall surfaces of said wall body.
3. The wall body of the hollow external wall structure according to claim 1, wherein the whole of the cage frame comprises upper and lower guide rails, pillars, bolts, self-tapping screws, shooting nails, steel wire mesh or fiber reinforced cement boards, foam strips, sealant layers, glass fiber mesh or external steel wire mesh.
4. The wall body of the hollow external wall structure according to claim 1, wherein the wall body inside the wall body is a whole wall body facing indoors and is composed of an inner cage frame, a gypsum mortar filling layer, a gypsum mortar leveling layer and a glass fiber net.
5. The wall body of the hollow external wall body structure according to claim 1, wherein the wall body outside the wall body is an entire wall body facing outdoors, and is composed of an external cage frame, a fiber reinforced cement board, a foamed concrete filling layer, interface mortar, a cement mortar leveling layer and a steel wire mesh.
6. A hollow exterior wall construction wall as claimed in claim 1, wherein the wall cavity is formed by the hollow portions of the interior and exterior walls.
7. The wall of the hollow external wall structure of claim 1, wherein the upper end beam and the lower end beam of the wall are concrete structure layer or steel structure beam or top slab layer of the floor.
8. A method of making a hollow exterior wall construction, the method comprising the steps of:
s1, selecting light steel keel upper and lower guide beams and upright columns with certain widths as cage frames of an outer wall, wherein the light steel keel upper and lower guide beams are parallel to the outer sides of upper and lower end beams of the wall, fixing the light steel keel upper and lower guide beams with the upper and lower end beams of the wall by expansion bolts, reserving a gap of 5-10mm between the light steel keel upper guide beam and the upper end beam of the wall, and arranging the light steel keel upper and lower guide beams on the same vertical surface;
s2, installing the light steel keel upright columns between the upper guide beam and the lower guide beam of the light steel keel by using self-tapping screws, and fixedly connecting the upright columns on two sides with the wall constructional columns by using expansion bolts to form an outer cage framework;
s3, installing fiber reinforced cement boards on two sides of the outer cage frame framework, connecting and fixing the fiber reinforced cement boards and the framework by using self-tapping screws according to arrangement points, and plugging board seams by using glue to form the outer cage frame;
s4, pouring foamed concrete into the cage frame from the upper part of the outer cage frame, and filling the outer cage frame to form an outer side wall filling layer;
s5, filling foaming strips or polyurethane foaming agents at joints of the upper guide rail of the light steel keel of the outer cage frame, the stand columns on two sides, the upper end beam of the wall body and the constructional column, filling the joints, and reserving partial space at the joints on the outer sides;
s6, selecting upper and lower guide rails and upright columns of a light steel keel with a certain width as an inner wall framework, fixing and combining the upper and lower guide beams and the upright columns on the ground by using self-tapping screws to form an inner cage framework, and fixing a steel wire mesh on the outer side of the inner cage framework by using shooting nails to form an inner cage with a mesh;
s7, mounting the cage frame with the net on the inner side of the wall body, enabling the upper and lower guide beams and the upright columns on the two sides of the cage frame to be flush with the upper and lower end beams of the wall body, and connecting and fixing the inner cage frame with the upper and lower end beams and the constructional columns of the wall body by using expansion bolts;
s8, filling foaming strips or polyurethane foaming agents at joints of the upper and lower guide rails of the inner cage frame, the upright columns on two sides and the wall beams and columns, and filling gaps;
s9, installing a water and electricity pipe groove, a junction box and wall internal and external components on the inner cage;
s10, spraying gypsum-based mortar to the steel wire mesh of the inner cage and leveling the gypsum-based mortar along the light steel keel on the inner cage to form an inner cage filling layer;
s11, paving 250 mm-wide glass fiber mesh cloth at joints of the upper and lower guide rails of the inner cage, the upright columns on two sides, the wall beams and the columns to prevent the joints from cracking;
s12, plastering cakes and punching ribs on the filling layer of the inner cage frame and the upper and lower end beam sides of the wall body so as to control the wall surface flatness and the verticality of the gypsum mortar leveling layer;
s13, spraying gypsum-based mortar on the filling layer of the inner cage frame and the upper and lower end beam sides of the wall body, and scraping and polishing along the screeding strips until the leveling layer of the gypsum mortar reaches the general plastering acceptance standard;
s14, filling the reserved space at the seam outside the outer cage frame with weather-resistant glue to prevent water seepage;
s15, paving and pasting a steel wire mesh with the width of 300mm at the joint of the outer side of the outer cage frame to prevent the joint from cracking;
s16, plastering cakes and punching ribs along the filling layer of the outer side wall and the outer sides of the upper end beam and the lower end beam of the wall body to control the wall surface flatness and the verticality of the cement mortar leveling layer;
and S17, performing interface treatment along the fiber reinforced cement boards of the outer side wall and the outer sides of the upper end beam and the lower end beam of the wall, then coating cement mortar (or cement waterproof mortar and cement polymer mortar) and leveling until the leveling layer reaches the general plastering acceptance standard.
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| CN202011025523.3A CN111962715A (en) | 2020-09-25 | 2020-09-25 | Hollow outer wall body structure and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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