CN106801474B - High-strength anti-cracking wall and construction method thereof - Google Patents
High-strength anti-cracking wall and construction method thereof Download PDFInfo
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- CN106801474B CN106801474B CN201710053173.3A CN201710053173A CN106801474B CN 106801474 B CN106801474 B CN 106801474B CN 201710053173 A CN201710053173 A CN 201710053173A CN 106801474 B CN106801474 B CN 106801474B
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
-
- 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
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/644—Damp-proof courses
- E04B1/648—Damp-proof courses obtained by injection or infiltration of water-proofing agents into an existing wall
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
A high-strength anti-cracking wall comprises a wall base layer, an outer heat-insulating layer, an outer anti-permeability anti-cracking layer, an outer facing layer, an inner heat-insulating layer, an inner anti-permeability anti-cracking layer and an inner facing layer; the outer side of the outer heat-insulation layer is an outer anti-permeability anti-cracking layer, and the outer side surface of the outer anti-permeability anti-cracking layer is an outer decorative surface layer; the outer side of the inner heat-insulating layer is an inner anti-permeability and anti-cracking layer, and the outer side of the inner anti-permeability and anti-cracking layer is an inner decorative surface layer; the outer impervious anti-cracking layer has a thickness not more than 1 cm and comprises: the anti-cracking mortar comprises a latticed wire mesh component and anti-cracking mortar filled in the outer anti-permeation anti-cracking layer and the inner anti-permeation anti-cracking layer, wherein the latticed wire mesh component comprises two or more layers of latticed wire meshes which are fixedly connected together. The high-strength anti-cracking wall body can effectively reduce the possibility of generating temperature cracks on the wall body, and is high in strength.
Description
Technical Field
The invention relates to the technical field of building walls, in particular to a high-strength anti-cracking wall and a construction method thereof.
Background
Whether the building wall is an outer wall, an inner wall, a partition wall and the like, temperature cracks, settlement cracks, structural cracks and the like may exist.
Temperature cracks are the most common in walls, because wall materials generally have the properties of expansion with heat and contraction with cold, and different expansion coefficients of different materials cause deformation of a house structure due to ambient temperature change, so that cracks are generated.
However, it should be noted that, probably because the temperature cracks affect the beauty, heat preservation performance, water resistance, penetration resistance and the like more, rather than the structural cracks, settlement cracks and the like, if the temperature cracks are too large, the problems belong to the quality of the building engineering, so that the prevention measures for the temperature cracks of the external wall of the building are less proposed and improved, so that the prevention scheme for the temperature cracks in the prior art is simple but the effective degree is low, that is, the high-strength wall in the prior art has an anti-cracking design, but the temperature cracks may occur to a great extent.
Disclosure of Invention
the invention aims at the problems that although the high-strength wall in the prior art has an anti-cracking design, especially an anti-cracking design aiming at temperature cracks, the temperature cracks can occur to a great extent, and the effective degree of the anti-cracking design scheme is low.
a high-strength, anti-cracking wall, comprising:
The wall body comprises a wall body base layer, an outer heat insulation layer, an outer anti-permeability and anti-cracking layer, an outer facing layer, an inner heat insulation layer, an inner anti-permeability and anti-cracking layer and an inner facing layer;
the outer side of the outer heat-insulation layer is an outer anti-permeability anti-cracking layer, and the outer side surface of the outer anti-permeability anti-cracking layer is an outer decorative surface layer;
The outer side of the inner heat-insulating layer is an inner anti-permeability and anti-cracking layer, and the outer side of the inner anti-permeability and anti-cracking layer is an inner decorative surface layer;
The outer impervious anti-cracking layer has a thickness not more than 1 cm and comprises: the anti-cracking mortar comprises a latticed wire mesh component and anti-cracking mortar filled in the outer anti-permeation anti-cracking layer and the inner anti-permeation anti-cracking layer, wherein the latticed wire mesh component comprises two or more layers of latticed wire meshes which are fixedly connected together.
Preferably, the meshes on the latticed wire mesh are all triangular or regular hexagonal.
In any of the above schemes, preferably, the grid-like wire mesh is a wire mesh or a steel wire mesh or a glass fiber mesh.
in any of the above schemes, preferably, at least one layer of the latticed wire mesh component is a wire mesh, at least one layer is a glass fiber mesh, and two adjacent layers are fixed by gluing or welding.
in any of the above solutions, it is preferable that the two adjacent layers of mesh-like silk screens are integrally formed during production, or are fixed by adhesion or welding.
In any of the above solutions, it is preferable that each of the components on the mesh-type screen is fixed and positioned by four or more building nails or expansion bolts.
in any of the above schemes, preferably, the high-strength anti-cracking wall further includes reinforcing steel bars, the reinforcing steel bars traverse the wall body base layer, the outer heat-insulating layer, the outer anti-permeability and anti-cracking layer, the inner heat-insulating layer and the inner anti-permeability and anti-cracking layer, and the length of each reinforcing steel bar is smaller than the thickness of the high-strength anti-cracking wall.
In any of the above schemes, preferably, rock wool or glass wool is arranged between the wall body base layer and the heat insulation layer.
Compared with the prior art, the technical scheme of the invention has the following advantages:
The wall body adopts the three-dimensional grid-shaped wire mesh component, the thickness of the component is not more than 1 cm, and the construction difficulty can not be increased under the condition of ensuring the crack resistance; the inner anti-permeability and anti-cracking layer can be in the same structure and treatment as the outer anti-permeability and anti-cracking layer, and accordingly cracks in the wall can be avoided, and attractiveness is affected.
The second aspect of the invention also relates to a construction method of the high-strength anti-cracking wall, which comprises the following steps:
The reinforcing steel bars are reserved to penetrate through holes in two side faces of the wall body base layer during wall body base layer processing;
After the wall body base layer is well maintained, heat insulation layers are arranged on two side faces of the wall body base layer;
The latticed wire mesh component is positioned and fixed on the heat insulation layer by adopting a shooting nail or an expansion bolt, and the reinforcing steel bar penetrates through the wire mesh at the outermost layer of the latticed wire mesh component and has the length flush with the plane of the wire mesh;
Pouring or coating anti-seepage and anti-cracking mortar;
and processing the finishing layer.
preferably, the latticed wire mesh component and the anti-permeability and anti-cracking mortar in the anti-permeability and anti-cracking layer can be prefabricated into a plurality of small anti-permeability and anti-cracking layers, the small anti-permeability and anti-cracking layers form the anti-permeability and anti-cracking layer of one wall body, and every two adjacent small anti-permeability and anti-cracking layers are adhered through building glue.
Compared with the prior art, the technical scheme of the invention has the following advantages:
The wall body constructed by the construction method has good crack resistance, particularly aims at wall body cracks caused by air temperature, and is high in practicability on the basis of the prior art.
Drawings
FIG. 1 is a schematic structural diagram of a latticed wire mesh component in a preferred embodiment of the high-strength anti-cracking wall body according to the invention;
FIG. 2 is a schematic view of another embodiment of the latticed wire mesh component in a high tensile, anti-spalling wall in accordance with the present invention;
Fig. 3 is a schematic view of a layered structure of an embodiment of a high strength anti-crack wall body according to the present invention.
Detailed Description
in order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
first embodiment
this embodiment provides a high-strength anti-cracking wall, see fig. 1-3 (the inner thermal insulation layer, the inner anti-permeability anti-cracking layer and the inner decorative surface layer are not shown in the figure), which includes:
A wall body base layer 3, an outer heat insulation layer 4, an outer anti-permeability and anti-cracking layer 5, an outer facing layer 6, an inner heat insulation layer, an inner anti-permeability and anti-cracking layer and an inner facing layer; the two side surfaces of the wall body base layer 3 are respectively provided with an outer heat insulation layer 4 and an inner heat insulation layer, the outer side of the outer heat insulation layer 4 is provided with an outer anti-permeability anti-cracking layer 5, and the outer side surface of the outer anti-permeability anti-cracking layer 5 is provided with an outer facing layer 6; the outer side of the inner heat-insulating layer is an inner anti-permeability and anti-cracking layer, and the outer side of the inner anti-permeability and anti-cracking layer is an inner decorative surface layer; the outer impervious anti-cracking layer has a thickness not more than 1 cm and comprises: the anti-cracking mortar comprises a latticed wire mesh component and anti-cracking mortar filled in the outer anti-permeation anti-cracking layer and the inner anti-permeation anti-cracking layer, wherein the latticed wire mesh component comprises two or more layers of latticed wire meshes 1 which are fixedly connected together.
Specifically, the wall in the wall body base layer 3 can be a brick wall, an aerated concrete block wall, a stone wall or a plate wall. However, the present embodiment relates to a high-strength anti-cracking wall, and therefore, the wall described in the present embodiment is a reinforced brick wall, an aerated concrete block wall, a stone wall, or a slab wall, and is preferably an aerated concrete block wall.
the inner heat-insulating layer can be arranged in the same way as the outer heat-insulating layer 4 or in the same way as the inner side surface of a common wall in the prior art.
The inner anti-seepage and anti-cracking layer can be arranged in the same way as the outer anti-seepage and anti-cracking layer 5, and can also be arranged in the same way as the inner side surface of a common wall in the prior art.
The two side surfaces of the wall body base layer 3 are respectively an outer heat insulation layer 4 and an inner heat insulation layer, namely, the outer heat insulation layer 4 covers and is attached to one side surface of the wall body base layer 3, the inner heat insulation layer covers and is attached to the other side surface of the wall body base layer 3, correspondingly, the outer anti-permeability and anti-cracking layer 5 covers and is attached to the other side surface of the outer heat insulation layer 4, the inner anti-permeability and anti-cracking layer covers and is attached to the other side surface of the inner heat insulation layer, correspondingly, the outer decorative surface layer 6 covers and is attached to the other side surface of the outer anti-permeability and anti-cracking layer 5, and the inner decorative surface layer covers and is attached to the other side surface of the.
The outer anti-permeability and anti-cracking layer 5 comprises a latticed wire mesh component and anti-cracking mortar filled in the outer anti-permeability and anti-cracking layer and the inner anti-permeability and anti-cracking layer.
The anti-cracking mortar can adopt the existing polymer waterproof anti-cracking mortar, and also can adopt the construction material journal of 2008, volume 11, phase 5, the author is the Zhang Shi army and Cao Lu Chun of the civil engineering academy of Xuzhou engineering academy, the thesis name is the optimized design of the plastering anti-cracking mortar, the anti-cracking mortar disclosed in the article has the mixing ratio of cement: fly ash =9:1,sand ratio 1:3, rubber powder: polymer rubber powder: polypropylene fiber = 7%: 0.4%: 0.7 percent, compared with the common plastering anti-cracking mortar, the fracture ratio of the anti-cracking mortar is reduced by 27.98 percent, the shrinkage rate is reduced by 39.53 percent, and the elastic modulus is reduced by 25.35 percent.
or, the anti-cracking mortar can adopt a waterproof anti-cracking mortar and a preparation method thereof, the patent number is CN201410161209.6, the waterproof anti-cracking mortar disclosed in the patent comprises 230 parts by weight of cement, 55 parts by weight of fly ash, 1000 parts by weight of medium sand, 10 parts by weight of modifier, 220 parts by weight of water, 0.1 part by weight of polypropylene fiber, 0.3 part by weight of wood fiber and 0.2 part by weight of hydroxypropyl cellulose, the modifier is one of redispersible latex powder and polymer emulsion, and the cement is silicon hydrochloric acid cement; the preparation method of the waterproof anti-crack mortar comprises the steps of firstly pouring 220 parts by weight of water into a stirrer, then pouring 230 parts by weight of cement, 55 parts by weight of fly ash, 1000 parts by weight of medium sand and 10 parts by weight of modifier into the stirrer, uniformly stirring for 3min to obtain the uniformly stirred mortar, and solidifying for 24 hours if solidification is required.
wherein, the latticed silk screen component comprises two or more layers of latticed silk screens 1 which are fixedly connected together. That is, the grid-shaped screen assembly includes at least two layers, so as to form a three-dimensional grid-shaped screen, which may be integrally formed during processing and production, or may be combined together in other manners, such as adhesion or welding according to material selection; and because the latticed silk screen is three-dimensional, not only can have certain pull resistance on the plane parallel with the wall surface, also can have certain pull resistance on the plane perpendicular to the wall surface, reduce wall surface crack and stride across between different layers, form deep wall surface crack.
Moreover, for the quality of wall construction, the thickness of the outer anti-permeability and anti-cracking layer 5 is not more than 1 cm, the outer anti-permeability and anti-cracking layer cannot be too thick or too thin, the outer anti-permeability and anti-cracking layer is too thick, so that the outer anti-permeability and anti-cracking layer has too heavy self weight and insufficient adhesive force, and due to self hydration heat, the outer anti-permeability and anti-cracking layer can generate cracks before not exerting the effect, and the outer anti-permeability and anti.
The latticed wire mesh 1 can be square or rectangular or rhombic or regular hexagonal and the like, or can be irregular block-shaped, but a plurality of block-shaped shapes can be spliced together to cover the whole wall body base layer.
In this embodiment, the grid-shaped mesh net 1 is preferably square or rectangular, and at the place where different wall surfaces meet, the grid-shaped mesh net 1 is preferably diamond-shaped.
In the present embodiment, referring to fig. 1, the cells 2 in the grid-like screen 1 are triangular; the reason why the grid 2 is arranged to be triangular is that the wall cracks are generally not horizontal or vertical, and the triangular shape can better absorb or share the stress in different directions and is more stable.
In other embodiments, referring to fig. 2, the shape of the cells 2 in the mesh-like screen 1 may also be regular hexagon, that is, the whole mesh-like screen 1 will be a honeycomb-like mesh-like screen 1, and such a structure can also better absorb or share the stress in different directions, and is also more stable.
In this embodiment, what contain in the latticed silk screen subassembly is two layers of latticed silk screen 1, and one layer is the wire net, preferably hot dip galvanized steel wire net, and another layer is glass fiber net, and both paste together through building glue around.
In other embodiments, what contain in the latticed silk screen subassembly can be two-layer glass fiber cloth, or two-layer hot dip galvanized steel wire net or two-layer wire netting, and it all can be integrated into one piece when processing man-hour in production, and two-layer glass fiber cloth can also be pasted through building glue, and hot dip galvanized steel wire net can also weld together, the wire netting also can weld together.
Under the condition of meeting the construction condition, the area of the latticed silk screen can be increased as much as possible, so that the workload can be reduced.
The adjacent grid wire mesh components are adhered by glue, preferably are adhered again by building anti-cracking adhesive tapes, the area of the pouring anti-cracking adhesive tapes can be slightly larger, most preferably, the area of the adhesive tapes is equal to the area of the whole wall, the adhesive tapes are made of waterproof or heat-insulating materials and are elastic, and the adhesive tapes can also be common anti-cracking adhesive tapes existing in the market or kraft tapes.
In the embodiment, the grid-shaped wire mesh components are positioned and fixed in the wall body through four or more than four building nails.
In other embodiments, the grid-like wire mesh assemblies are each positioned and fixed in the wall by four or more expansion bolts.
Preferably, the anchoring depth of the building shooting nail or the expansion bolt is 5 cm of the inner wall body of the base layer.
the number of the construction nails or expansion bolts depends on the area and weight of the mesh-like wire net assembly, and the minimum number is four since the mesh-like wire net is at least quadrangular in shape.
Therefore, the positioning accuracy can be ensured, and the latticed wire mesh component is better fixed in the wall body; certainly, a layer of building glue can be added between the outer anti-seepage and anti-cracking layer and the heat insulation layer.
Although the wall in the wall base layer can be realized by adopting the existing wall with higher strength in the invention, in order to ensure that the wall has higher strength and better anti-cracking performance, reinforcing steel bars are also arranged in the high-strength anti-cracking wall body.
The reinforcing steel bars transversely penetrate through the wall body base layer, the outer heat-insulation layer, the outer anti-seepage and anti-cracking layer, the inner heat-insulation layer and the inner anti-seepage and anti-cracking layer, and the length of each reinforcing steel bar is smaller than the thickness of the high-strength anti-cracking wall body.
The reinforcing steel bars penetrate through other layers of the high-strength anti-cracking wall body except the outer decorative surface layer and the inner decorative surface layer and are perpendicular to the wall surface, and if the wall body in the wall body base layer is already provided with steel bar reinforcement, three-dimensional reinforcement is just formed inside the high-strength anti-cracking wall body together with the reinforcing steel bars.
Each reinforcing steel bar is parallel to each other but arranged in a staggered manner to form three vertexes of an equilateral triangle.
Rock wool or glass wool is arranged between the wall body base layer and the outer heat-insulating layer and between the wall body base layer and the inner heat-insulating layer, so that the requirement of fire prevention is met.
The outer anti-permeability and anti-cracking layer and the outer decorative layer are adhered by flexible glue, or a part of elastic fibrous material can be arranged on the basis of the flexible glue; the flexible adhesive is flexible epoxy resin or weather-resistant silicone sealant; and, a waterproof putty layer can also be coated in the outer facing layer.
the building glue or paste described in this embodiment can adopt the glue or the products such as the binder meeting the requirements in the prior art, for example, epoxy resin adhesive, steel bond glue, bar-planting glue (anchor glue) perfusion glue, carbon fiber reinforced glue, polyvinyl acetate, polyacrylate, natural latex, neoprene, nitrile latex, etc.
In this embodiment, the wall body adopts a three-dimensional latticed wire mesh component, the three-dimensional latticed wire mesh can be a wire mesh or a steel wire mesh or a glass fiber net, at least one layer of the three-dimensional latticed wire mesh is the wire mesh or the steel wire mesh, and at least one layer of the three-dimensional latticed wire mesh is the glass fiber net, so that the tensile property of the wall body is ensured, and the rigidity of the wall body is also ensured, and the connecting parts between the latticed wire meshes are also the latticed wire mesh, namely, the wall body also has rigidity and tensile property in the thickness direction of the wall body, while in the prior art, one layer of the steel wire mesh or the glass fiber net is generally used, and the design of similar rigidity and.
And because the thickness of the three-dimensional latticed wire mesh component does not exceed 1 centimeter, the crack resistance is ensured, and the construction difficulty is not increased, because in the prior art, the total thickness of the heat-insulating layer and the waterproof crack-resistant layer is generally between 5 millimeters and 15 millimeters, and the thickness can reach 20 millimeters, but the design and construction of the thickness of the heat-insulating layer and the waterproof crack-resistant layer depend on the wall requirements, for example, in the northeast area, the heat-insulating layer and the waterproof crack-resistant layer can be thickened properly, but correspondingly, the workload, the working difficulty and the crack resistance can be influenced, and the balance point of the three layers needs to be found, while the thickness of the latticed wire mesh component is 1 centimeter, the thickness is between the common thickness, the construction difficulty is low, the workload can be small, and because the three-dimensional latticed wire mesh component of.
moreover, the meshes in the latticed silk screen are triangular or regular hexagonal, instead of square or rectangular meshes in the prior art, and the silk screen is also rhombic, so that corresponding stress can be resisted in different directions on the wall surface, and the wall body is not only resistant to tension in the horizontal direction or the vertical direction, namely, the wall body has a three-dimensional tensile design in multiple directions, and the anti-cracking performance is better; the prior art is designed to be tensile only in the horizontal direction or the vertical direction, which is not enough for temperature crack resistance.
moreover, the reinforcing steel bars, the building nails and the grid-shaped wire mesh components are improved from multiple aspects to ensure the anti-cracking performance of the wall body of the embodiment.
In addition, the inner anti-permeability and anti-cracking layer can be in the same structure and treatment as the outer anti-permeability and anti-cracking layer, and accordingly cracks in the wall can be avoided, and attractiveness is affected.
In summary, the temperature difference in winter and summer can reach 40-50 ℃, while the temperature difference in summer can reach 15-20 ℃; in winter, due to indoor heating, the temperature difference between the inside and the outside can reach more than 30 ℃, the linear expansion coefficients of different materials in the wall body are different, the wall body in the prior art only has temperature stress resistance in the width direction and the height direction of the wall body, and the temperature stress resistance design in the thickness direction of the wall body and the temperature stress resistance design in other directions in the height and width planes of the wall body are not available, therefore, when the temperature difference between the inside and the outside reaches 10 ℃, the two wall bodies do not have temperature cracks under the assumption, however, when the temperature difference between the inside and the outside reaches 20 ℃, cracks which are not parallel to the width direction of the wall body and are positioned on the same plane with the width direction of the wall body can occur on the wall body in the prior art, namely, the crack angle is larger than 0 ℃ and smaller than 90 ℃, or is larger than 90 ℃ and smaller than 180 ℃, and cracks penetrating through the wall body are likely to occur; when the temperature difference between the inside and the outside reaches 20 ℃, and when the wall in the prior art has temperature cracks at various angles or in various directions, the high-strength anti-cracking wall in the embodiment has the advantages that the anti-cracking layers designed inside the wall, namely the three-dimensional latticed wire mesh component and the waterproof anti-cracking mortar, can resist the temperature stress in different directions, and the temperature stress resistance in the width direction and the thickness direction of the wall is designed in a reinforcing manner, so that the possibility of the temperature cracks can be greatly reduced.
second embodiment
The embodiment provides a construction method of a high-strength anti-cracking wall body, which comprises the following steps:
The reinforcing steel bars are reserved to penetrate through holes in two side faces of the wall body base layer during wall body base layer processing;
After the wall body base layer is well maintained, heat insulation layers are arranged on two side faces of the wall body base layer;
The latticed wire mesh component is positioned and fixed on the heat insulation layer by adopting a shooting nail or an expansion bolt, and the reinforcing steel bar penetrates through the wire mesh at the outermost layer of the latticed wire mesh component and has the length flush with the plane of the wire mesh;
Pouring or coating anti-seepage and anti-cracking mortar;
And processing the finishing layer.
specifically, it is first certain that a firm construction foundation, i.e., a foundation or the like, is required.
and then, building a wall body, reserving a through hole for the reinforcing steel bar to pass through when the wall body is built, wherein the reserved construction scheme of the reserved through hole can adopt the scheme the same as the construction scheme of the reserved holes such as water heating, electricity and the like. Therefore, the through holes through which the reinforcing steel bars pass are reserved instead of directly putting the reinforcing steel bars into the wall body, the reinforcing steel bars and the wall body are integrally constructed, and the construction progress, the construction difficulty and the construction workload are not influenced due to the fact that the reinforcing steel bars pay out the protruding parts of the wall body when subsequent articles such as plastering, plastering and building glue smearing are carried out.
When handling wall body basic unit, wall body basic unit must be handled totally, thoroughly clears up wall body surface filth and dust, can refer to relevant building standard to the processing of wall body basic unit.
After the wall body base layer is maintained, two ways can be adopted for arranging the heat preservation and insulation layers on the two side surfaces of the wall body base layer, wherein one way is to coat a heat preservation and insulation mortar layer to a set thickness, in the embodiment, the thickness of the outer heat preservation and insulation layer can be properly adjusted because the seepage-proof and crack-resistant layer is not more than 1 cm, and the heat preservation and insulation mortar can adopt inorganic heat preservation mortar or rubber powder polyphenyl particle mortar and the like; in another mode, the heat insulation board is directly adhered to the wall body base layer through building glue, and the heat insulation board can be a polystyrene board, a polystyrene foam board, a phenolic foam board, an extruded sheet, glass wool and the like.
In the process, a step of coating an interface agent to treat the wall base layer can be added between the outer heat-preservation and insulation layer and the wall base layer.
After the outer heat-insulating layer is cured, an outer anti-permeability and anti-cracking layer can be arranged, wherein the two modes are also available.
The first mode is that firstly, the latticed wire mesh is positioned and fixed on the outer heat-insulation layer through a nail or an expansion bolt, and before the process, building glue can be coated between the outer heat-insulation layer and the outer anti-permeability and anti-cracking layer; after the latticed wire mesh is fixed, pouring and coating anti-permeability and anti-cracking mortar are started until the anti-permeability and anti-cracking layer is full of the anti-permeability and anti-cracking mortar, and the reinforcing steel bars are placed in the wall body and are flush with the plane of the outermost wire mesh.
the second mode is that the latticed silk screen assembly is prefabricated, reserves the hole that the reinforcing steel bar passed in the prefabrication, with penetrate the hole that nail or expansion bolts passed, after the prefabrication was accomplished, through at outer heat preservation insulating layer coating building glue, penetrate nail or expansion bolts to and reinforcing steel bar will the anti-cracking layer with the closely cover laminating of heat preservation insulating layer is in the same place.
in the second mode, because latticed silk screen subassembly is a plurality of prefabricated, in the impervious anticracking layer latticed silk screen subassembly with impervious crack control mortar can prefabricate into a plurality of small-size impervious anticracking layers earlier, and the impervious anticracking layer of a wall body is constituteed to a plurality of small-size impervious anticracking layers, and adjacent every paste through building glue between the small-size impervious anticracking layer, and the building glue of here pastes the mode includes all scribble flexible viscose on latticed silk screen subassembly's the side all around, closely paste adjacent latticed silk screen subassembly together, preferably, adjacent the joint of pasting of latticed silk screen subassembly adopts building glue area to paste once more, the preferred adoption of adhesive tape for building takes elastic sticky tape.
In a second way, prefabrication may be to bubble the latticed wire mesh assembly in the impervious, anti-cracking mortar to produce the latticed wire mesh assembly.
In this process, it is noted that the mesh-type wire net assembly may be selected as a mesh-type wire net assembly having a large area as much as possible, which reduces the amount of work.
And after the impervious anti-cracking layer is finished and well maintained, the finishing layer can be processed.
The facing layer and the anti-seepage and anti-cracking construction layer can be coated with flexible viscose and can also be added with elastic fiber mortar.
When an anti-permeability and anti-cracking layer is formed at the corner of the high-strength anti-cracking wall body, the latticed wire mesh component cannot be prefabricated, the latticed wire mesh component is twisted into a shape matched with the shape of the corner, anti-permeability and anti-cracking mortar is poured, and the wall bodies on two sides of the corner are preferably constructed at the same time, so that the anti-permeability and anti-cracking layer can be prevented from losing the binding force on the external mortar to cause cracking, and the phenomenon that no mortar appears in the middle of the latticed cloth at the lap joint of the latticed cloth and the crack occurs due to a hollow part caused by multiple constructions in the prior art is prevented.
the rhombic latticed wire mesh components of the first embodiment are adopted at the positions where cracks such as door and window openings of the high-strength anti-cracking wall body frequently occur and at the positions where different wall bodies are spliced.
In the construction method in this embodiment, the inner thermal insulation layer, the inner anti-permeability and anti-cracking layer, and the inner facing layer may be constructed in the same way as the outer thermal insulation layer, the outer anti-permeability and anti-cracking layer, and the outer facing layer.
The steps of smearing putty, building glue, leveling, lapping and the like which are not mentioned in the method all adopt the construction procedures and the construction methods in the prior art.
compared with the prior art, the technical scheme of the invention has the following advantages:
The wall body constructed by the construction method has good crack resistance, particularly aims at wall body cracks caused by air temperature, is improved on the basis of the prior art, and has strong practicability.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides a high-strength anti-cracking wall, includes wall body basic unit, outer heat preservation insulating layer, outer impervious anti-cracking layer, outer finish coat, outer heat preservation insulating layer covers a wall body basic unit side, outer impervious anti-cracking layer covers outer heat preservation insulating layer another side, outer finish coat covers outer impervious anti-cracking layer another side, its characterized in that includes:
an inner heat insulation layer, an inner anti-permeability and anti-cracking layer and an inner decorative surface layer;
The other side surface of the wall body base layer is provided with an inner heat insulation layer, the outer side of the inner heat insulation layer is provided with an inner anti-permeability and anti-cracking layer, and the outer side of the inner anti-permeability and anti-cracking layer is provided with an inner decorative surface layer;
The outer impervious anti-cracking layer has a thickness not more than 1 cm and comprises: the anti-cracking mortar comprises a latticed wire mesh component and anti-cracking mortar filled in the outer anti-permeability and anti-cracking layer and the inner anti-permeability and anti-cracking layer, wherein the latticed wire mesh component comprises two or more latticed wire meshes which are fixedly connected together;
The meshes on the latticed silk screens are all regular hexagons, and the connecting parts among the latticed silk screens are also latticed silk screens;
The high-strength anti-cracking wall further comprises reinforcing steel bars, wherein the reinforcing steel bars transversely penetrate through the wall body base layer, the outer heat-insulating layer, the outer anti-permeability anti-cracking layer, the inner heat-insulating layer and the inner anti-permeability anti-cracking layer, the length of each reinforcing steel bar is smaller than the thickness of the high-strength anti-cracking wall body, and the reinforcing steel bars are parallel to each other and are arranged in a staggered mode to form three vertexes of an equilateral triangle.
2. A high strength anti-cracking wall body according to claim 1, wherein the latticed wire mesh is a wire mesh or a steel wire mesh or a glass fiber mesh.
3. a high-strength anti-cracking wall body as claimed in claim 2, wherein at least one layer of the latticed wire mesh component is a wire mesh, at least one layer of the latticed wire mesh component is a glass fiber mesh, and two adjacent layers are adhered and fixed through adhesive or fixed through welding.
4. A high strength anti-cracking wall body as claimed in claim 1, wherein two adjacent layers of mesh-like wire nets are integrally formed during production or manufacturing, or are fixed by adhesion or welding.
5. A high strength anti-cracking wall body according to claim 1, wherein each grid-like screen assembly is fixed in position by four or more building nails or expansion bolts.
6. A high-strength anti-cracking wall body as claimed in claim 1, wherein rock wool or glass wool is arranged between the wall body base layer and the heat-insulating layer.
7. A construction method of a high-strength anti-cracking wall, comprising the high-strength anti-cracking wall as claimed in any one of claims 1 to 6, wherein the method comprises the following steps: the reinforcing steel bars are reserved to penetrate through holes in two side faces of the wall body base layer during wall body base layer processing;
After the wall body base layer is well maintained, heat insulation layers are arranged on two side faces of the wall body base layer;
positioning and fixing the latticed wire mesh component on the heat insulation layer by adopting a shooting nail or an expansion bolt, wherein the reinforcing steel bar penetrates through the outermost wire mesh of the latticed wire mesh component, and one end of the reinforcing steel bar is flush with the plane of the outermost wire mesh; pouring or coating anti-seepage and anti-cracking mortar;
And processing the finishing layer.
8. The method for constructing a high strength anti-cracking wall according to claim 7, wherein the latticed wire mesh assemblies and the anti-cracking mortar in the anti-cracking layers are prefabricated into a plurality of small anti-cracking layers, the small anti-cracking layers form the anti-cracking layers of one wall, and each adjacent small anti-cracking layer is adhered to the other small anti-cracking layer through building glue.
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| CN110644684A (en) * | 2019-10-14 | 2020-01-03 | 江苏天道建材科技有限公司 | Composite heat-insulating waterproof roof |
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| CN202850258U (en) * | 2012-04-16 | 2013-04-03 | 万薇薇 | External envelope structure of compound insulation wall for energy saving building |
| CN103821251A (en) * | 2014-03-07 | 2014-05-28 | 单锦春 | Interlayer thermal insulating wall and construction method thereof |
| CN103850362A (en) * | 2014-01-15 | 2014-06-11 | 湖北天泉新型建筑材料有限公司 | GHB (Glazed Hollow Bead) heat preservation and heat insulation building wall body and construction technology |
| CN205242685U (en) * | 2015-12-28 | 2016-05-18 | 河南兴安新型建筑材料有限公司 | Cast -in -place compound self preservation temperature wall body of assembled |
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| CN2637609Y (en) * | 2003-07-22 | 2004-09-01 | 罗时虎 | Stereo steel wire net frame and architectural construction member using said net frame |
| CN103334543A (en) * | 2013-06-20 | 2013-10-02 | 昆山生态屋建筑技术有限公司 | Three-dimensional point welding space truss |
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|---|---|---|---|---|
| CN202850258U (en) * | 2012-04-16 | 2013-04-03 | 万薇薇 | External envelope structure of compound insulation wall for energy saving building |
| CN103850362A (en) * | 2014-01-15 | 2014-06-11 | 湖北天泉新型建筑材料有限公司 | GHB (Glazed Hollow Bead) heat preservation and heat insulation building wall body and construction technology |
| CN103821251A (en) * | 2014-03-07 | 2014-05-28 | 单锦春 | Interlayer thermal insulating wall and construction method thereof |
| CN205242685U (en) * | 2015-12-28 | 2016-05-18 | 河南兴安新型建筑材料有限公司 | Cast -in -place compound self preservation temperature wall body of assembled |
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