CN113653215A - Super-insulation structure integrated wall material and preparation method thereof - Google Patents
Super-insulation structure integrated wall material and preparation method thereof Download PDFInfo
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- CN113653215A CN113653215A CN202111009499.9A CN202111009499A CN113653215A CN 113653215 A CN113653215 A CN 113653215A CN 202111009499 A CN202111009499 A CN 202111009499A CN 113653215 A CN113653215 A CN 113653215A
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- 238000009413 insulation Methods 0.000 title claims abstract description 107
- 239000000463 material Substances 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title claims description 14
- 239000011449 brick Substances 0.000 claims abstract description 130
- 239000004567 concrete Substances 0.000 claims abstract description 74
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 21
- 238000012546 transfer Methods 0.000 claims abstract description 21
- 239000004570 mortar (masonry) Substances 0.000 claims description 68
- 239000004814 polyurethane Substances 0.000 claims description 16
- 229920002635 polyurethane Polymers 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000010354 integration Effects 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000011178 precast concrete Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 8
- 238000004321 preservation Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
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- 239000004568 cement Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
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- 238000005187 foaming Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 230000005494 condensation Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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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
- E04B1/76—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
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
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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
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
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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
- Y02A30/242—Slab shaped vacuum insulation
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/10—Insulation, e.g. vacuum or aerogel insulation
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- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
The invention relates to a super heat insulation structure integrated wall material which comprises a vacuum heat insulation plate layer, wherein one side, positioned indoors in a use state, of the super heat insulation structure integrated wall material is defined as the inner side, the inner surface of the vacuum heat insulation plate layer is connected with a concrete layer, the inner surface of the concrete layer is connected with an aerated brick layer, the aerated brick layer comprises a plurality of aerated bricks and reinforcing steel bars positioned among the aerated bricks, the aerated bricks and the reinforcing steel bars are fixedly bonded, and the reinforcing steel bars stretch into the concrete layer. The super heat insulation structure integrated wall material adopts a novel structural design, realizes the high strength and super heat insulation advantages of the wall body, and has the heat transfer coefficient reaching 0.26W/(m) under the best condition2K), antiThe pressure intensity can reach 28.5MPa, and the prefabricated member has better market application prospect.
Description
Technical Field
The invention relates to a building prefabricated member, in particular to a super heat insulation structure integrated wall material and a preparation method thereof.
Background
When the multi-layer structure of the building envelope structure is combined by adopting different types of materials, thermal bridges can be generated due to the fact that the heat conductivity coefficients of the different materials are inconsistent. The temperature difference between the indoor and the outdoor is large in the late autumn and the early winter, cold air and hot air are frequently contacted, the heat conduction of the heat insulation layer of the wall is uneven, a heat bridge effect is generated, and the dewing, the mildewing and even the dripping of the inner wall of the house are caused. The heat bridge effect is caused by no good heat conduction (heat preservation), and the condensation phenomenon is easy to occur at the heat bridge, thereby influencing the quality of the indoor living environment. Because the difference between the linear expansion coefficients of the reinforced concrete and the building blocks is large, temperature stress is easy to generate, and the wall body is cracked. Therefore, the thermal insulation performance of the composite thermal insulation system needs to be simulated and tested, a wall body with a low heat transfer coefficient is obtained, and meanwhile, the influence of a thermal bridge on the building envelope is avoided.
The traditional structure heat preservation integration wall material relies on that prefabricated PC wall material and insulation material combine to form, though insulation material has relatively lower coefficient of heat conductivity but with PC wall material complex back, the heat transfer coefficient of whole wall material still leads to the production of heat bridge very easily, long-term use still can reduce the intensity of system.
Patent application CN111732402A discloses a waterproof and fireproof aerated brick and a preparation method thereof, wherein the aerated brick is prepared from the following raw materials in parts by weight: 15-20 parts of cast iron slag, 10-15 parts of blast furnace slag, 8-12 parts of fly ash, 5-7 parts of natural asphalt, 8-9 parts of ceramic soil, 8-11 parts of cement, 8-12 parts of glass wool, 4-6 parts of gypsum, 1-3 parts of carbon powder and a proper amount of water. The preparation method mainly comprises the following steps: (1) raw material treatment, (2) casting, (3) static curing, (4) steam curing, and (5) standing. The aerated brick has the effects of heat preservation and heat insulation, but the strength of the aerated brick is limited, and the aerated brick cannot be directly used as a heat preservation wall. If the aerated brick is directly used as a heat-insulating wall body, the aerated brick can only be used as a non-bearing wall body, so that the use of the aerated brick is limited to a great extent. The traditional aerated brick and the concrete layer are bonded and combined through mortar on site, the requirement on the mortar is high, the structure is unstable, and the aerated brick and the concrete layer have the risk of falling off if used for external thermal insulation of an external wall. The requirement on mortar is high because the water absorption of the aerated brick is high, the common mortar cannot meet the construction requirement, and even if high-quality mortar is adopted for field construction, the bonding structure of the aerated brick and the load-bearing concrete wall is unstable, and the later stability of the whole wall body can be influenced.
Disclosure of Invention
The invention aims to overcome the defects of the existing heat-insulating wall body and provide a super heat-insulating structure integrated wall material, which combines a vacuum heat-insulating plate layer, a concrete layer and an aerated brick layer, achieves the super heat-insulating effect by combining the design of plate seams and the design of filling materials through a specific laying sequence and can realize the heat transfer coefficient of less than or equal to 0.30W/(m) under the best condition2K) and a compressive strength of 25MPa or more.
The specific scheme is as follows:
the utility model provides a super insulation construction integration wall, includes the thermal insulation sheet layer in vacuum, the definition super insulation construction integration wall is located indoor one side under the user state and is interior, then the internal surface connection concrete layer on thermal insulation sheet layer in vacuum, the internal surface connection aerated brick layer on concrete layer, the aerated brick layer includes a plurality of aerated bricks, and is located reinforcing bar between the aerated brick, it is a plurality of the aerated brick with the reinforcing bar bonding is fixed, the reinforcing bar stretches into in the concrete layer.
Furthermore, the vacuum insulation plate layer is formed by tiling a plurality of vacuum insulation plates, and the heat conductivity coefficient of the vacuum insulation plates is not lower than 0.0030W/(m.K).
Further, plate joints paved and adhered with the vacuum insulation panels are not more than 5mm, the plate joints are filled with any one of common mortar, phase change mortar, thermal insulation mortar and foamed polyurethane, preferably the foamed polyurethane, and the thermal conductivity coefficient of the foamed polyurethane is less than or equal to 0.03W/(m.K);
preferably, the plate seams of the vacuum insulation plates are staggered with the brick seams of the aerated bricks.
Further, the aerated brick layer is formed by fixedly bonding the aerated brick and the steel bar by adopting first bonding mortar, the first bonding mortar is any one of common mortar, phase change mortar and thermal insulation mortar, and the drawing bonding strength of the first bonding mortar is not less than 0.5 MPa.
Optionally, the aerated brick is a non-sintered aerated brick and comprises any one of B03, B05 and B07, and the thermal conductivity of the aerated brick is not more than 0.2W/(m.K).
Further, the concrete layer comprises a concrete member, the inner side of the concrete member is connected with the aerated brick layer through cast concrete, the outer side of the concrete member is connected with the vacuum heat insulation plate layer through second bonding mortar, and preferably, the pull bonding strength of the second bonding mortar is not less than 1 MPa;
optionally, the thickness of the concrete layer is: the thickness of the aerated brick layer is 2: 1-0.8: 1, preferably 1.2: 1-0.8: 1;
optionally, the super insulation structure integrated wall material further comprises an inner wall plastering layer and/or an outer wall plastering layer, the inner wall plastering layer is located on the inner surface of the aerated brick layer, and the outer wall plastering layer is located on the outer surface of the vacuum insulation slab layer.
Furthermore, the heat transfer coefficient of the super heat insulation structure integrated wall material is less than or equal to 0.30W/(m 2K)), and the compressive strength is greater than or equal to 25 MPa.
The invention also discloses a preparation method of the super heat insulation structure integrated wall material, which comprises the following steps:
1) preparing a platform for preparing the wall material, cleaning the surface of the platform, and then spraying a release agent on the surface of the platform;
2) positioning and installing a wall forming die on the platform;
3) positioning the aerated bricks, arranging reinforcing steel bars, and then grouting brick joints among the aerated bricks to realize bonding among the aerated bricks, wherein one ends of the reinforcing steel bars are fixed at the brick joints of the aerated bricks, and the other ends of the reinforcing steel bars are free ends and extend outwards;
4) pouring concrete at the free ends of the reinforcing steel bars, and compacting and leveling the concrete;
5) paving a vacuum insulation plate on the outer side of the concrete parallel to the aerated brick;
6) and demolding and maintaining after the wall material is formed.
Further, in the step 2), a steel film is arranged on an outer frame of the platform and is fixed by a fixed magnetic box matched with the platform;
optionally, the reserved window and/or door is sized and positioned through a frame and is fixed by a fixed magnetic box;
optionally, in the step 3), when the aerated bricks are positioned, gaps are reserved, then reinforcing steel bars are installed, the reinforcing steel bars are fixed into a whole by adopting transverse bars, and finally, the reserved gaps are grouted by adopting first bonding mortar to realize connection between the aerated bricks; preferably, the first bonding mortar is any one of common mortar, phase change mortar and thermal insulation mortar, and the drawing bonding strength of the first bonding mortar is not less than 0.5 MPa;
optionally, the aerated brick is a non-sintered aerated brick and comprises any one of B03, B05 and B07, and the thermal conductivity of the aerated brick is not more than 0.2W/(m.K).
Further, in the step 4), precast concrete is adopted and conveyed to the upper part of the mould for pouring of the concrete, vibration is carried out after pouring is finished, and the procedures of compacting and leveling of the concrete are carried out;
optionally, in the step 5), a second bonding mortar is used for flatly paving the vacuum insulation board on the outer surface of the concrete, which is parallel to the aerated brick, and preferably, the second bonding mortar has the drawing bonding strength of not less than 1 MPa;
optionally, in the step 6), the formed wall material is demoulded and maintained, and plastering is carried out on the inner wall and the outer wall.
Furthermore, the plate joints of the vacuum insulation plates are less than or equal to 5mm and do not correspond to the brick joints of the aerated bricks.
Has the advantages that:
according to the invention, the steel bars are embedded in the brick joints of the aerated bricks and connected with the concrete layer, so that the strength of the system can be effectively enhanced. The inner wall is made of aerated brick building blocks, the outer wall is made of a vacuum heat insulation plate, the middle part is made of a concrete member wall as the middle part of the structure of the composite system, the heat transfer coefficient is 0.26W/(m 2K), the compressive strength is 28.5MPa, and the composite system has the effect of structural function integration.
Then, the concrete layer has the strength advantage, the aerated brick layer has the heat preservation advantage, and the thickness of the concrete layer is set as follows: the thickness of the aerated brick layer is 2: 1-0.8: 1, and the synergy of strength and heat preservation performance can be comprehensively ensured.
Furthermore, the vacuum insulation panel with extremely low heat conduction coefficient is attached to the outer side of the concrete member wall, so that the wall material system has low heat conduction coefficient; polyurethane is preferably used as the underfill because the thermal conductivity of polyurethane is 0.03W/(m.K) or less, which can be matched with the materials in the system of the present invention to minimize the thermal bridge problem due to the difference in thermal conductivity of different materials.
Furthermore, the plate seam of the vacuum heat insulation plate is designed within 5mm, so that the generation of a heat bridge is guaranteed to be reduced, and because the heat conductivity coefficient of the plate seam material is far lower than that of the vacuum heat insulation plate, the plate seam is the key for reducing the generation of the heat bridge, and meanwhile, the foaming polyurethane with lower heat conductivity coefficient can be used for obtaining lower heat transfer coefficient. On the basis, the generation of thermal bridges can be further reduced by arranging the plate joints and the brick joints not to correspond.
The preparation method of the super heat-insulation structure integrated wall material comprises the steps of utilizing a wall material forming die to install each layer, laying aerated brick layers, reserving brick joints to install reinforcing steel bars, and bonding and fixing by combining bonding mortar; then preparing a concrete layer, and connecting the prefabricated PC wall (concrete member) to the aerated brick layer through concrete by adopting a concrete pouring process; and finally, paving a vacuum insulation plate outside the PC wall body to form a vacuum insulation layer. The method has the advantages of convenient construction, high wall material strength and good heat preservation effect.
In a word, the super heat insulation structure integrated wall material adopts a novel structural design, realizes the high strength and super heat insulation advantages of the wall body, and has a good market application prospect.
Drawings
In order to illustrate the technical solution of the present invention more clearly, the drawings will be briefly described below, and it is apparent that the drawings in the following description relate only to some embodiments of the present invention and are not intended to limit the present invention.
Fig. 1 is a schematic structural view of a super insulation structure integrated wall material provided in an embodiment 1 of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available. In the following examples, "%" means weight percent, unless otherwise specified.
Example 1
Referring to fig. 1, a super insulation construction integration wall material, including vacuum insulation board layer 1, the definition super insulation construction integration wall material is located indoor one side under the user state and is interior, then the internal surface connection concrete layer 2 of vacuum insulation board layer 1, the internal surface connection aerated brick layer 3 of concrete layer 2, aerated brick layer 3 includes a plurality of aerated bricks, and is located reinforcing bar 4 between the aerated brick, it is a plurality of the aerated brick with reinforcing bar 4 bonds fixedly, reinforcing bar 4 stretches into in the concrete layer 2.
Specifically, the vacuum insulation panel layer 1 is formed by tiling a plurality of vacuum insulation panels, the thermal conductivity of the vacuum insulation panels is not lower than 0.0030W/(m · K), preferably the vacuum insulation panels produced by the Qingdao Kerui novel environmental protection materials Co., Ltd, the size of the vacuum insulation panels is 60mm × 40mm, and the thermal conductivity is 0.0025W/(m · K).
Preferably, the plate joints paved with the vacuum insulation panels are not more than 5mm, the plate joints are filled with mortar or joint mixture, such as any one of common mortar, phase change mortar, thermal insulation mortar and foamed polyurethane, preferably the foamed polyurethane joint mixture, and the thermal conductivity coefficient of the foamed polyurethane is less than or equal to 0.03W/(m.K), so that the thermal bridge effect caused by the difference of the thermal conductivity characteristics of the materials is reduced by matching with the wall material system. The vacuum insulation plate is paved and attached on the surface of the concrete layer 2, namely the outer side of the concrete member is connected with the vacuum insulation plate layer through second bonding mortar, and preferably, the second bonding mortar has the drawing bonding strength not less than 1 MPa.
The aerated brick layer 3 is formed by bonding and fixing aerated bricks through first bonding mortar, the reinforcing steel bars 4 are arranged at brick joints, the first bonding mortar is any one of common mortar, phase change mortar and thermal insulation mortar, and the drawing bonding strength of the first bonding mortar is not less than 0.5MPa so as to ensure the integral high strength. The aerated brick is a non-sintered aerated brick and comprises any one of B03, B05 and B07, preferably B05, and the thermal conductivity coefficient of the aerated brick is not more than 0.2W/(m.K).
The concrete layer 2 between the vacuum insulation slab layer 1 and the aerated brick layer 3 can be made of PC wall material (concrete member wall) and is poured and cured on one side of the aerated brick layer 3 by using concrete (see the preparation process in example 2). The strength grade of the PC wall material is not lower than C30 so as to ensure high strength of the whole.
In order to guarantee high strength and super heat preservation effect, the thickness of concrete layer 2: the thickness of the aerated brick layer 3 is 2: 1-0.8: 1, preferably 1.2: 1-0.8: 1.
In a specific embodiment, the super thermal insulation structure integrated wall material can further comprise an outer wall plastering layer 5 and/or an inner wall plastering layer 6, and the functions of decoration and beauty are achieved.
Example 2
The preparation method of the super heat-insulation structure integrated wall material in the embodiment 1 comprises the following steps:
1) preparing a platform for preparing the wall material, cleaning the surface of the platform, and then spraying a release agent on the surface of the platform;
2) positioning and installing a wall forming die on the platform;
3) positioning the aerated bricks, arranging reinforcing steel bars, and then grouting brick joints among the aerated bricks to realize bonding among the aerated bricks, wherein one ends of the reinforcing steel bars are fixed at the brick joints of the aerated bricks, and the other ends of the reinforcing steel bars are free ends and extend outwards;
4) pouring concrete at the free ends of the reinforcing steel bars, and compacting and leveling the concrete;
5) paving a vacuum insulation plate on the outer side of the concrete parallel to the aerated brick;
6) and demolding and maintaining after the wall material is formed.
Specifically, the method comprises the following operations of 1) platform cleaning on a prefabricated mould platform: a fixedly arranged cleaning instrument is adopted to clean the platform translated on the production line, a steel brush is utilized to clean concrete and other residual substances remained on the surface of the platform, and a release agent is sprayed to facilitate the release production of the later integrated wall material; 2) positioning and installing a die: according to the size of the designed part of the integrated wall material, a steel film is installed on the outer frame, the outer frame is fixed by using a fixed magnetic box matched with the platform, and the reserved window and door are subjected to size positioning by using a wooden frame and are fixed by using the fixed magnetic box; 3) brick positioning, steel bar arrangement, brick joint grouting: according to the design, the bricks are placed inside the set mold according to the positioning size requirement, so that the size positioning of the bricks and the size of the reserved seam can be ensured. After the bricks are positioned, pre-manufactured steel bars are placed in a preset position, the steel bars are fixed into a whole by adopting transverse bars, and then the reserved seams are grouted by adopting cement-based bonding materials to realize effective connection of the bricks; 4) pouring concrete and compacting and leveling the concrete, namely prefabricating the concrete in a prefabrication workshop, conveying the concrete to the upper part of a mould by a blanking machine after stirring, pouring the concrete by the blanking machine under the traction of a track, vibrating by using a mould platform after pouring, and compacting and leveling the concrete; 5) paving a vacuum insulation board: the vacuum insulation panel is connected with the wall body through the bonding mortar, so that the heat transfer coefficient of the whole wall body part is reduced; 6) wall demoulding, curing in a curing room, plastering of inner and outer walls: and (4) removing the fixed iron mold from the completely formed wall body after the specified age. And (4) disassembling the wall body of the mold, carrying out maintenance in a maintenance room along with a production line, and plastering the inner wall and the outer wall after the maintenance is finished.
Example 3
In the embodiment, the structure of the wall material is optimized on the basis of the embodiment 1, the B05 building blocks of 600X 200 Shandonghua Henghua environmental protection building materials Co., Ltd are used as aerated bricks, and the brick joints are set to be 5 mm; the vacuum insulation panel is externally attached to the outer side of a PC wall, the plate seams are 5mm, and PU (polyurethane) gap fillers (foaming polyurethane) are adopted among the plate seams. The thickness of the concrete layer 2 is 100mm, the thickness of an aerated brick layer formed by aerated bricks is 100mm, and the outer wall plastering layer 5 and the inner wall plastering layer 6 respectively adopt conventional plastering mortar and have the thickness of 20 mm. The plate seams of the vacuum insulation plates do not correspond to the brick seams of the aerated bricks.
The heat conductivity coefficient of the plastering mortar is 0.93W/(m.K), the heat conductivity coefficient of the B05 building block is 0.14W/(m.K), the heat conductivity coefficient of the PC wall is 1.74W/(m.K), and the heat conductivity coefficient of the vacuum insulation panel is 0.0025W/(m.K); the thermal conductivity of the foamed polyurethane was 0.022W/(m.K).
The actually measured heat transfer coefficient of the super heat insulation structure integrated wall material is 0.26W/(m)2K) and the measured compressive strength was 28.5 MPa.
Example 4
In this embodiment, the vacuum insulation panel is changed on the basis of embodiment 3, the slab joint filler paved on the vacuum insulation panel can be common mortar, phase change mortar or thermal insulation mortar, and the concrete conditions are as follows:
(1) the plate gap is 5mm, the plate gap is filled with common mortar, the thermal conductivity coefficient of the common mortar is 0.93W/(m.K), and the actual measurement is superThe heat transfer coefficient of the integrated wall material with the heat insulation structure is 1.18W/(m)2K) and the measured compressive strength was 27.6 MPa.
(2) The plate gap is 5mm, the phase change mortar is adopted to fill the plate gap, the heat conductivity coefficient of the phase change mortar is 0.08W/(m.K), and the actually measured heat transfer coefficient of the super thermal insulation structure integrated wall material is 0.38W/(m.K)2K) and the measured compressive strength was 28.3 MPa.
(3) The plate gap is 5mm, the plate gap is filled with thermal insulation mortar, the thermal conductivity coefficient of the thermal insulation mortar is 0.1W/(m.K), and the actually measured heat transfer coefficient of the super thermal insulation structure integrated wall material is 0.41W/(m.K)2K) and the measured compressive strength was 27.9 MPa.
Example 5
In this embodiment, the change is made on the basis of embodiment 3, and the aerated brick can adopt B03 or B07 building blocks, specifically as follows:
(1) when the aerated brick adopts B03 building blocks, the B03 heat conductivity coefficient is 0.11W/(m.K), and the actually measured heat transfer coefficient of the integrated wall material with the super heat-insulating structure is 0.24W/(m.K)2K), compressive strength of 25.8MPa,
(2) when the aerated brick adopts B07 building blocks, the B07 heat conductivity coefficient is 0.19W/(m.K), and the actually measured heat transfer coefficient of the integrated wall material with the super heat-insulating structure is 0.27W/(m.K)2K) and a compressive strength of 29.8 MPa.
Therefore, the block B05 is preferable in the overall cost performance.
Example 6
This example was modified from example 3 in that the thickness of the concrete layer: the thickness of the aerated brick layer can be 2: 1-0.8: 1, or 1.2: 1-0.8: 1, specifically,
when the thickness of the concrete layer is adopted: the thickness of the aerated brick is 2:1, and the actually measured heat transfer coefficient of the super heat-insulation structure integrated wall material is 0.48W/(m)2K), compressive strength 32.9 MPa;
when the thickness of the concrete layer is adopted: the thickness of the aerated brick is 0.8:1, and the actually measured heat transfer coefficient of the super heat-insulation structure integrated wall material is 0.24W/(m)2K), compressive strength 26.9 MPa;
when the thickness of the concrete layer is adopted: the thickness of the aerated brick is 1.2:1Actually measured heat transfer coefficient of the super thermal insulation structure integrated wall material is 0.28W/(m)2K), compressive strength 28.7 MPa.
Comparative example 1
The comparative example is changed on the basis of example 3, each layer adopts different arrangement modes, and other parameters are the same, specifically:
when adopting the structure of arranging in proper order on aerated brick layer + vacuum insulation board layer + concrete layer, refer to the method in embodiment 2 promptly, the laying on aerated brick layer is carried out earlier, and the installation reinforcing bar, later spread at the surface on aerated brick layer and paste vacuum insulation panel, form vacuum insulation board layer, the preparation on concrete layer is accomplished in the outside on vacuum insulation board layer at last, the wall body of mould has been torn open, the follower assembly line is maintained to the maintenance room, carry out the interior outer wall and plaster after the maintenance is good, do from the extroversion in proper order promptly: the outer wall plastering layer, the concrete layer, the vacuum heat insulation plate layer, the aerated brick layer and the inner wall plastering layer. The actually measured heat transfer coefficient of the integrated wall material is 1.51W/(m)2K), compressive strength 28.3 MPa.
On the basis of embodiment 3, only the relative positions of the inner wall and the outer wall are changed, namely the following steps are carried out from outside to inside in sequence: the heat transfer coefficient of the actually measured integrated wall material is 0.78W/(m)2K), compressive strength of 27.9MPa, and there is a risk of the external wall insulation (air-entraining mass) falling off, since the air-entraining mass is separated from the outside only by a layer of plaster.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The utility model provides a super insulation construction integration walling which characterized in that: including the adiabatic sheet layer of vacuum, the definition super insulation construction integration wall material lies in indoor one side under the user state and is interior, then the internal surface connection concrete layer on the adiabatic sheet layer of vacuum, the internal surface connection aerated brick layer on concrete layer, the aerated brick layer includes a plurality of aerated bricks, and is located reinforcing bar between the aerated brick, it is a plurality of the aerated brick with the reinforcing bar bonding is fixed, the reinforcing bar stretches into in the concrete layer.
2. The integrated wall material with the super heat-insulating structure as claimed in claim 1, wherein: the vacuum heat insulation plate layer is formed by tiling a plurality of vacuum heat insulation plates, and the heat conductivity coefficient of the vacuum heat insulation plates is not lower than 0.0030W/(m.K).
3. The integrated wall material with the super heat-insulating structure as claimed in claim 2, wherein: the plate joint paved and adhered with the vacuum insulation plate is not more than 5mm, the plate joint is filled with any one of common mortar, phase change mortar, thermal insulation mortar and foamed polyurethane, preferably the foamed polyurethane, and the heat conductivity coefficient of the foamed polyurethane is less than or equal to 0.03W/(m.K);
preferably, the plate seams of the vacuum insulation plates are staggered with the brick seams of the aerated bricks.
4. The integrated wall material with the super heat-insulating structure as claimed in claim 1, wherein: the aerated brick layer is fixedly bonded with the steel bar by adopting first bonding mortar, the first bonding mortar is any one of common mortar, phase change mortar and thermal insulation mortar, and the drawing bonding strength of the first bonding mortar is not less than 0.5 MPa;
optionally, the aerated brick is a non-sintered aerated brick and comprises any one of B03, B05 and B07, and the thermal conductivity of the aerated brick is not more than 0.2W/(m.K).
5. The integrated wall material with the super heat-insulating structure as claimed in claim 1, wherein: the concrete layer comprises a concrete member, the inner side of the concrete member is connected with the aerated brick layer through cast concrete, the outer side of the concrete member is connected with the vacuum heat insulation plate layer through second bonding mortar, and preferably, the drawing bonding strength of the second bonding mortar is not less than 1 MPa;
optionally, the thickness of the concrete layer is: the thickness of the aerated brick layer is 2: 1-0.8: 1, preferably 1.2: 1-0.8: 1;
optionally, the super insulation structure integrated wall material further comprises an inner wall plastering layer and/or an outer wall plastering layer, the inner wall plastering layer is located on the inner surface of the aerated brick layer, and the outer wall plastering layer is located on the outer surface of the vacuum insulation slab layer.
6. The integrated wall material with the super heat-insulation structure as claimed in any one of claims 1 to 5, wherein: the heat transfer coefficient of the super heat-insulation structure integrated wall material is less than or equal to 0.95W/(m)2K)) a compressive strength of 25MPa or more; preferably, the heat transfer coefficient is 0.30W/(m)2K)) and a compressive strength of 28MPa or more.
7. A preparation method of a super heat insulation structure integrated wall material is characterized by comprising the following steps: the method comprises the following steps:
1) preparing a platform for preparing the wall material, and cleaning the surface of the platform;
2) positioning and installing a wall forming die on the platform;
3) positioning the aerated bricks, arranging reinforcing steel bars, and then grouting brick joints among the aerated bricks to realize bonding among the aerated bricks, wherein one ends of the reinforcing steel bars are fixed at the brick joints of the aerated bricks, and the other ends of the reinforcing steel bars are free ends and extend outwards;
4) pouring concrete at the free ends of the reinforcing steel bars, and compacting and leveling the concrete;
5) paving a vacuum insulation plate on the outer side of the concrete parallel to the aerated brick;
6) and demolding and maintaining after the wall material is formed.
8. The preparation method of the super heat insulation structure integrated wall material according to claim 7, characterized in that: in the step 1), after the surface of the platform is cleaned, a release agent is sprayed on the surface of the platform, so that the subsequent release is facilitated;
optionally, in step 2), a steel film is mounted on an outer frame of the platform and fixed by using a fixed magnetic box matched with the platform;
optionally, the reserved window and/or door is sized and positioned through a frame and is fixed by a fixed magnetic box;
optionally, in the step 3), when the aerated bricks are positioned, gaps are reserved, then reinforcing steel bars are installed, the reinforcing steel bars are fixed into a whole by adopting transverse bars, and finally, the reserved gaps are grouted by adopting first bonding mortar to realize connection between the aerated bricks; preferably, the first bonding mortar is any one of common mortar, phase change mortar and thermal insulation mortar, and the drawing bonding strength of the first bonding mortar is not less than 0.5 MPa;
optionally, the aerated brick is a non-sintered aerated brick and comprises any one of B03, B05 and B07, and the thermal conductivity of the aerated brick is not more than 0.2W/(m.K).
9. The preparation method of the super heat insulation structure integrated wall material according to claim 7 or 8, characterized in that: in the step 4), precast concrete is conveyed to the upper part of the mould to pour the concrete, and after pouring is finished, vibration is carried out, and the procedures of compacting and leveling the concrete are carried out;
optionally, in the step 5), a second bonding mortar is used for flatly paving the vacuum insulation board on the outer surface of the concrete, which is parallel to the aerated brick, and preferably, the second bonding mortar has the drawing bonding strength of not less than 1 MPa;
optionally, in the step 6), the formed wall material is demoulded and maintained, and plastering is carried out on the inner wall and the outer wall.
10. The preparation method of the super heat insulation structure integrated wall material according to claim 7 or 8, characterized in that: the plate seams of the vacuum heat insulation plates are less than or equal to 5mm and do not correspond to the brick seams of the aerated bricks.
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