CN115726480A - Building external wall heat insulation integrated structure and construction method - Google Patents
Building external wall heat insulation integrated structure and construction method Download PDFInfo
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- CN115726480A CN115726480A CN202211338272.3A CN202211338272A CN115726480A CN 115726480 A CN115726480 A CN 115726480A CN 202211338272 A CN202211338272 A CN 202211338272A CN 115726480 A CN115726480 A CN 115726480A
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- 238000009413 insulation Methods 0.000 title claims abstract description 109
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 claims abstract description 67
- 239000010410 layer Substances 0.000 claims abstract description 58
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 29
- 239000011241 protective layer Substances 0.000 claims abstract description 22
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 20
- 239000004793 Polystyrene Substances 0.000 claims abstract description 10
- 239000012790 adhesive layer Substances 0.000 claims abstract description 10
- 229920002223 polystyrene Polymers 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 7
- 239000010439 graphite Substances 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000005336 cracking Methods 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 239000004964 aerogel Substances 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 8
- 230000009970 fire resistant effect Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The invention discloses a building external wall insulation integrated structure and a construction method, belonging to the technical field of building insulation wall construction, and comprising a composite insulation board and a reinforced concrete wall body, wherein a connecting piece is arranged between the reinforced concrete wall body and the composite insulation board; the composite insulation board comprises a protective layer, a fireproof structural layer, an adhesive layer, an insulation layer and a bottom lining, wherein the protective layer and the bottom lining are both made of alkali-resistant mesh cloth and filled with anti-crack mortar, the adhesive layer comprises adhesive mortar, and the insulation layer comprises a graphite extruded polystyrene board; the composite insulation board is provided with a plurality of groups, a first connecting piece and a second connecting piece are respectively arranged at two ends of each group of composite insulation board, the first connecting piece and the second connecting piece are matched, the first connecting piece is opposite to one side of the reinforced concrete wall, and the second connecting piece is opposite to one side of the reinforced concrete wall. The invention solves the technical problems of easy falling off, complex process, high construction difficulty and the like of the building heat-insulating layer in the prior art.
Description
Technical Field
The invention belongs to the technical field of construction of building heat-insulating walls, and particularly relates to a building external wall heat-insulating integrated structure and a construction method.
Background
The heat preservation is all done to the outer wall of present building, in the shear wall structure, mainly adopts two kinds of techniques: firstly, most of the heat-insulating and heat-protecting wall bodies are connected with the wall bodies in a sticking and nailing mode, and a mortar protective layer with the thickness of 3-5mm is arranged on the surface of the heat-insulating and heat-protecting wall bodies. The phenomena of cracking and falling generally occur in a short time of the service cycle, and the heat preservation effect and the service life are influenced. The insulating layer is mainly made of polystyrene board flammable materials, the exposure time is long during construction, the protection is thin, the polystyrene board flammable materials are easy to damage and leak for a long time, and fire disasters are easy to cause when exposed to open fire, so that great personal and property losses are caused; secondly, a steel wire mesh frame sandwich heat preservation technology is adopted, but the process is complex, the construction difficulty is high, and the engineering quality cannot be guaranteed.
Reference CN111926930A discloses a fire-proof external wall thermal insulation system with a composite polystyrene structure and a preparation method thereof, which relates to the application of a fire-proof layer, an adhesive layer, a thermal insulation layer and a finish coat, but in the overall structure, the fire-proof layer arranged at a fault position is not strong in fire-proof effect, especially at the outer multi-layer end part, so that the basic effect is easily damaged for a long time, and only a single thermal insulation board cannot be arranged at the outer side of a reinforced concrete wall, and how to install the thermal insulation board is also considered.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problems that the building heat-insulating layer is easy to fall off, the process is complex, the construction difficulty is high and the like in the prior art are solved.
In order to solve the technical problems, the inventor obtains the technical scheme of the invention through practice and summary, and the invention discloses a building external wall heat-insulation integrated structure which comprises a composite heat-insulation plate and a reinforced concrete wall body, wherein a connecting piece is arranged between the reinforced concrete wall body and the composite heat-insulation plate; the composite insulation board comprises a protective layer, a fireproof structural layer, an adhesive layer, an insulation layer and a bottom lining, wherein the protective layer and the bottom lining are both made of alkali-resistant mesh cloth filled with anti-cracking mortar, the adhesive layer comprises adhesive mortar, and the insulation layer comprises a graphite extruded polystyrene board;
the composite insulation board is provided with a plurality of groups, two ends of each group of composite insulation board are respectively provided with a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are matched, the first connecting piece is opposite to one side of the reinforced concrete wall, and the second connecting piece is opposite to one side of the reinforced concrete wall.
In a further aspect, the fire-resistant construction layer includes a lightweight fire-resistant insulation paste.
In a further technical scheme, the first connecting piece and the second connecting piece are both detachably connected with the composite insulation board and are both bending plates;
the connecting piece I is provided with a first fitting strip, the connecting piece II is provided with a second fitting strip, the first fitting strip is provided with a connecting groove, the second fitting strip is provided with a connecting boss, and the connecting groove is matched with the connecting boss.
In a further technical scheme, one side of the composite heat-insulation plate, which is opposite to the reinforced concrete wall body, is provided with a vertical groove, a fixing hole is suitable for being formed in the vertical groove, a connecting piece is suitable for being installed in the fixing hole, and the connecting piece is suitable for penetrating through the composite heat-insulation plate and being fixed on the reinforced concrete wall body.
In a further technical scheme, a positioning column is arranged in the vertical groove and is suitable for mounting a packaging strip which is suitable for closing the vertical groove;
the outer side of the composite heat-insulation board is provided with a plastering layer and an outer decorative surface layer, and one side of the reinforced concrete wall body, which is back to the composite heat-insulation board, is provided with an inner decorative surface layer.
In a further technical scheme, the thickness of the first connecting piece and the second connecting piece after connection is matched with the thickness of the composite heat-preservation plate.
A construction method of a building external wall heat-insulation integrated structure comprises the following steps:
step 1: a prefabricated composite heat-insulation board is characterized in that bonding mortar with the thickness of 2mm is laid on one side of a graphite extruded polystyrene board to serve as a bonding layer, a fireproof structural layer is installed on the other side of the bonding layer, aerogel heat-insulation felt or fireproof heat-insulation mortar with the thickness of 43mm is laid on the other side of the fireproof structural layer, a protective layer with the thickness of 5mm is laid on one side of the fireproof structural layer, which is opposite to the bonding layer, alkali-resistant mesh fabrics are prefabricated and laid on the surfaces of the two sides of the protective layer and the bottom lining, the thickness of the protective layer and the thickness of the bottom lining are controlled through screws, then, template grid-connected templates are laid outside the screws, anti-cracking mortar is poured in the template grid-connected templates, the protective layer is at least 5mm, the bottom lining is at least 3mm, and the composite heat-insulation board is stood for more than 24 hours after completion.
Step 2: installation: a pistol drill is used on site to penetrate fixing holes in the vertical grooves of the composite insulation board, connecting pieces are installed, and each square meter is not less than 8;
the distance between the fixed holes on the outermost side and the edge of the composite heat-insulation plate is not less than 75mm; the special anchoring parts are all knocked into the reserved fixing holes of the composite insulation board and bound together by steel wires and steel bar structures.
And 3, step 3: the composite heat-insulation board is directly used as an outer template, the space between the split bolts is determined according to the height of each layer of wall column beam plate and a conventional template construction method, holes are formed in the corresponding positions of the composite heat-insulation board and the inner side template by a hand gun drill, the split bolts penetrate through the holes, and nuts are adopted on two sides of the split bolts for locking.
The common installation mode of the heat insulation layer is as follows: the method comprises the steps of typesetting → spring lines → cutting → installing connecting pieces → binding reinforcing steel bars and cushion blocks → erecting inner side templates → erecting outer side formwork protection integrated plates → installing embedded sleeves and split bolts → installing template wood square and secondary ridges → installing template double-steel-pipe main ridges → adjusting the position of a fixed template → pouring concrete → inner templates and main and secondary ridges are dismantled → building self-insulation building block masonry → splicing seams and anti-cracking treatment at the corners of the joints and the corners of the joints → dividing seams → special plastering mortar construction → finishing layer construction.
Compared with the prior art, the invention can obtain the following technical effects:
the invention has reasonable structure, convenient installation and firm structure, reduces the use amount of the traditional external template, and effectively solves the technical problems of easy falling off, complex process, high construction difficulty and the like of the building heat-insulating layer in the prior art. The effects of layering and fireproof heat-insulation outer wall are realized by arranging the bottom lining, the heat-insulation layer, the bonding layer, the fireproof structural layer and the protective layer, the construction of the outer wall heat-insulation engineering is omitted, the wall structure and the heat-insulation energy are saved in place in one step by the multi-action effect, the construction period is shortened, and the comprehensive construction cost of the engineering is greatly reduced.
The composite heat-insulation board does not need to be replaced and maintained, has the actual effects of fire prevention, water prevention, seepage prevention and falling prevention, and has the same service life as the building main body. Make composite insulation board and building object closely combine together through the connecting piece, and because the structure sets up, the connecting piece can not be in external environment for a long time, can avoid bearing the adverse natural environment influence of outer wall.
And in the actual building forming, an external wall template is not needed, so that a large amount of template cost can be saved. The materials of the invention can not generate pollution; the invention designs a connecting structure to realize the continuous installation effect of the composite insulation boards on the outer side of the reinforced concrete wall, in particular to the installation of a plurality of groups of composite insulation boards.
Drawings
In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a heat-insulating board according to embodiment 1 of the present invention;
FIG. 2 is a structure diagram of the building external wall insulation integration structure of the invention;
fig. 3 is a structural view of a composite heat-insulating board of embodiment 2 of the present invention;
fig. 4 is a top cross-sectional view of two sets of composite insulation boards of embodiment 2 of the present invention.
In the figure: 1. an interior finish layer; 2. a reinforced concrete wall; 3. a composite insulation board; 31. a protective layer; 32. a fire resistant structural layer; 33. an adhesive layer; 34. a heat-insulating layer; 35. a bottom lining; 4 is a finishing layer; 5 is an outer decorative layer; 7. a first connecting piece; 8. a second connecting piece; 9. a fixing plate; 10. matching the first strip; 11. a second matching strip; 12. connecting the bosses; 13. a connecting groove; 14. a vertical groove; 15. a fixing hole; 16. a locking member; 17. a positioning column; 18. and (6) packaging the strip.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The application of the principles of the present invention will be further described with reference to the accompanying drawings and the specific embodiments.
Example 1
As shown in fig. 1 and 2, is an embodiment of the present invention. An integrated structure for building external wall insulation comprises a composite insulation board 3 and a reinforced concrete wall body 2, wherein a locking piece 16 is arranged between the reinforced concrete wall body 2 and the composite insulation board 3; the composite insulation board 3 comprises a protective layer 31, a fireproof structural layer 32, an adhesive layer 33, an insulation layer 34 and a bottom lining 35, wherein the protective layer 31 and the bottom lining 35 are both made of alkali-resistant mesh cloth filled with anti-cracking mortar, the adhesive layer 33 comprises adhesive mortar, and the insulation layer 34 comprises a graphite extruded polystyrene board;
the composite heat-insulation board 3 is provided with a plurality of groups, two ends of each group of composite heat-insulation board 3 are respectively provided with a first connecting piece 7 and a second connecting piece 8, the first connecting piece 7 and the second connecting piece 8 are matched, the first connecting piece 7 is opposite to one side of the reinforced concrete wall body 2, and the second connecting piece 8 is opposite to one side of the reinforced concrete wall body 2.
The fire-resistant construction layer 32 includes a lightweight fire-resistant insulation paste. Is usually one or two mixtures of aerogel heat insulation felt or fireproof heat insulation mortar.
Example 2
As shown in fig. 3 and 4, in another embodiment of the present invention, based on example 1, because the building height and the required insulation exterior wall height of each project are unknown, in theory, it is impossible to use only one composite insulation board 3 for a single wall surface, and the simple locking and bonding by bolts inevitably leads to the falling off of the insulation wall due to long-term rain corrosion.
The first connecting piece 7 and the second connecting piece 8 are both detachably connected with the composite heat-insulation board 3 and are both bending boards; the first connecting piece 7 is internally provided with a first matching strip 10, the second connecting piece 8 is internally provided with a second matching strip 11, the first matching strip 10 is provided with a connecting groove 13, the second matching strip 11 is provided with a connecting boss 12, and the connecting groove 13 is matched with the connecting boss 12.
The side, back to the reinforced concrete wall body 2, of the composite heat insulation board 3 is provided with a vertical groove 14, a fixing hole 15 is suitable for being formed in the vertical groove 14, a locking piece 16 is suitable for being installed in the fixing hole 15, and the locking piece 16 is suitable for penetrating through the composite heat insulation board 3 and being fixed on the reinforced concrete wall body 2.
A positioning column 17 is arranged in the vertical groove 14, the positioning column 17 is suitable for mounting a packaging strip 18, and the packaging strip 18 is suitable for closing the vertical groove 14;
the outer side of the composite heat-insulation board 3 is provided with a plastering layer 4 and an outer decorative surface layer 5, and one side of the reinforced concrete wall body 2, which is back to the composite heat-insulation board 3, is provided with an inner decorative surface layer 1.
The first connecting piece 7 and the second connecting piece 8 are suitable for the thickness after connection to be matched with the thickness of the composite heat-insulation board 3.
A construction method of a building external wall heat insulation integrated structure comprises the following steps:
step 1: prefabricating a composite heat-insulation plate 3, paving bonding mortar with the thickness of 2mm on one side of a graphite extruded polystyrene board as a bonding layer 33, then installing a fireproof structural layer 32 on the other side of the bonding layer 33, paving an aerogel heat-insulation felt or fireproof heat-insulation mortar with the thickness of 43mm on one side of the fireproof structural layer 32 opposite to the bonding layer 33, paving a protective layer 31 with the thickness of 5mm on one side of the fireproof structural layer 32 opposite to the bonding layer 33, prefabricating and paving alkali-resistant mesh fabrics on the surfaces of two sides of the protective layer 31 and a bottom lining 35, controlling the thickness through screws, then paving template grid-connected templates outside the screws, pouring anti-crack mortar in the template, setting the protective layer 31 to be at least 5mm, setting the bottom lining 35 to be at least 3mm, and standing for more than 24 hours after finishing.
Step 2: installation: a pistol drill is used on site to penetrate through fixing holes 15 in the vertical grooves 14 of the composite insulation board 3, and locking pieces 16 are installed, wherein the number of the locking pieces is not less than 8 per square meter;
the distance between the fixing hole 15 at the outermost side and the edge of the composite heat-insulation plate 3 is not less than 75mm; the special anchoring parts are all knocked into the reserved fixing holes 15 of the composite heat-insulation board 3 and bound together by steel wires and steel bar structures.
And step 3: the composite heat-insulation board 3 is directly used as an outer template, the space between the split bolts is determined according to the height of each layer of wall column beam plate and the conventional template construction method, holes are formed in the corresponding positions of the composite heat-insulation board 3 and the inner side template by a pistol drill, the split bolts penetrate through the holes, and nuts are adopted on two sides of the split bolts for locking.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (7)
1. The utility model provides a building outer wall heat preservation integral structure which characterized in that: the reinforced concrete heat-insulation board comprises a composite heat-insulation board and a reinforced concrete wall, wherein a connecting piece is arranged between the reinforced concrete wall and the composite heat-insulation board; the composite insulation board comprises a protective layer, a fireproof structural layer, an adhesive layer, an insulation layer and a bottom lining, wherein the protective layer and the bottom lining are both alkali-resistant mesh fabrics filled with anti-crack mortar, the adhesive layer comprises adhesive mortar, and the insulation layer comprises a graphite extruded polystyrene board;
the composite heat-insulation board is provided with a plurality of groups, two ends of each group of composite heat-insulation board are respectively provided with a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are matched, the first connecting piece is opposite to one side of the reinforced concrete wall, and the second connecting piece is opposite to one side of the reinforced concrete wall.
2. The building external wall insulation integrated structure of claim 1, which is characterized in that: the fireproof construction layer comprises light fireproof heat-preservation slurry.
3. The building external wall insulation integrated structure of claim 1, which is characterized in that: the first connecting piece and the second connecting piece are both detachably connected with the composite insulation board and are both bending plates;
the first connecting piece is arranged in the first connecting piece, the second connecting piece is arranged in the second connecting piece, a connecting groove is formed in the first connecting piece, a connecting boss is arranged on the second connecting piece, and the connecting groove is matched with the connecting boss.
4. The building external wall insulation integrated structure of claim 3, characterized in that: one side of the composite heat-insulation plate, which is back to the reinforced concrete wall body, is provided with a vertical groove, a fixing hole is suitable for being formed in the vertical groove, a connecting piece is suitable for being installed in the fixing hole, and the connecting piece is suitable for penetrating through the composite heat-insulation plate and being fixed on the reinforced concrete wall body.
5. The building external wall insulation integrated structure of claim 4, wherein: a positioning column is arranged in the vertical groove and is suitable for mounting a packaging strip which is suitable for closing the vertical groove;
the outer side of the composite heat-insulation board is provided with a plastering layer and an outer decorative surface layer, and one side of the reinforced concrete wall body, which is back to the composite heat-insulation board, is provided with an inner decorative surface layer.
6. The building exterior wall insulation integrated structure according to any one of claims 3 to 5, wherein: the first connecting piece and the second connecting piece are suitable for matching the thickness of the connected board with the thickness of the composite heat-preservation board.
7. The construction method of the building external wall heat-insulation integrated structure according to claim 6, characterized by comprising the following steps:
step 1: a prefabricated composite heat-insulation board is characterized in that bonding mortar with the thickness of 2mm is laid on one side of a graphite extruded polystyrene board to serve as a bonding layer, a fireproof structural layer is installed on the other side of the bonding layer, aerogel heat-insulation felt or fireproof heat-insulation mortar with the thickness of 43mm is laid on the other side of the fireproof structural layer, a protective layer with the thickness of 5mm is laid on one side of the fireproof structural layer, which is opposite to the bonding layer, alkali-resistant mesh fabrics are prefabricated and laid on the surfaces of the two sides of the protective layer and the bottom lining, the thickness of the protective layer and the thickness of the bottom lining are controlled through screws, then, template grid-connected templates are laid outside the screws, anti-cracking mortar is poured in the template grid-connected templates, the protective layer is at least 5mm, the bottom lining is at least 3mm, and the composite heat-insulation board is stood for more than 24 hours after completion.
Step 2: installation: a pistol drill is used on site to penetrate a fixing hole in a vertical groove of the composite insulation board, and connecting pieces are installed, wherein the number of the connecting pieces is not less than 8 per square meter;
the distance between the fixed holes on the outermost side and the edge of the composite heat-insulation plate is not less than 75mm; the special anchoring parts are all knocked into the reserved fixing holes of the composite insulation board and bound together by steel wires and steel bar structures.
And 3, step 3: the composite heat-insulation board is directly used as an outer template, the space between the split bolts is determined according to the height of each layer of wall column beam plate and a conventional template construction method, holes are formed in the corresponding positions of the composite heat-insulation board and the inner side template by a hand gun drill, the split bolts penetrate through the holes, and nuts are adopted on two sides of the split bolts for locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211338272.3A CN115726480A (en) | 2022-10-28 | 2022-10-28 | Building external wall heat insulation integrated structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211338272.3A CN115726480A (en) | 2022-10-28 | 2022-10-28 | Building external wall heat insulation integrated structure and construction method |
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| CN115726480A true CN115726480A (en) | 2023-03-03 |
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| CN114370159A (en) * | 2022-02-23 | 2022-04-19 | 江苏兴厦建设工程集团有限公司 | Construction method for integrated structure of external wall heat insulation structure |
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2022
- 2022-10-28 CN CN202211338272.3A patent/CN115726480A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180034807A (en) * | 2016-09-28 | 2018-04-05 | (주)한국록셀보드 | Outside heat-insulation wall method and outside heat-insulation wall thereby |
| CN106836567A (en) * | 2017-01-24 | 2017-06-13 | 北京振利节能环保科技股份有限公司 | A kind of rock wool cast-in-situ concrete heat-insulation wall with ribbing and its construction method |
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| CN114370159A (en) * | 2022-02-23 | 2022-04-19 | 江苏兴厦建设工程集团有限公司 | Construction method for integrated structure of external wall heat insulation structure |
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