CN110331789A - A kind of construction method of exterior-wall heat insulation - Google Patents
A kind of construction method of exterior-wall heat insulation Download PDFInfo
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- CN110331789A CN110331789A CN201910606677.2A CN201910606677A CN110331789A CN 110331789 A CN110331789 A CN 110331789A CN 201910606677 A CN201910606677 A CN 201910606677A CN 110331789 A CN110331789 A CN 110331789A
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- 238000010276 construction Methods 0.000 title claims abstract description 60
- 238000009413 insulation Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000012774 insulation material Substances 0.000 claims abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000008258 liquid foam Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000007711 solidification Methods 0.000 claims abstract description 5
- 230000008023 solidification Effects 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 54
- 239000007788 liquid Substances 0.000 claims description 15
- 238000005187 foaming Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 239000000565 sealant Substances 0.000 claims description 11
- 239000004814 polyurethane Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- 239000000378 calcium silicate Substances 0.000 claims description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000005034 decoration Methods 0.000 claims description 2
- 239000006261 foam material Substances 0.000 claims description 2
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000002346 layers by function Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 1
- 230000000979 retarding effect Effects 0.000 claims 1
- 239000011505 plaster Substances 0.000 abstract description 8
- 239000011159 matrix material Substances 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009421 internal insulation Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920006389 polyphenyl polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 239000004744 fabric Substances 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
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- 239000011496 polyurethane foam Substances 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
-
- 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
-
- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Finishing Walls (AREA)
Abstract
The present invention provides a kind of construction methods of exterior-wall heat insulation, belong to architectural engineering energy-saving heat preserving field.Exterior wall heat-preserving construction method provided by the invention includes the following steps: to be fixed on the wall the plate of finished product using masonry as matrix, and spaced cavities embryophoric membrane is formed between wall, and reserved fluent material pours opening；By being open, craft or machinery into cavity pour liquid foam thermal insulation material；After liquid foam thermal insulation material foamed solidification, sealing cavity opening.The present invention is compared with prior art, wall base body, thermal insulation material, model plate form one, without removing template, without the coat of plaster after plaster and insulating layer, reduce construction procedure, it reduces costs, the duration is saved, the density and the coefficient of expansion of thermal insulation material can also be controlled, thermal insulation material is made to form continuous insulation system, reduce energy conduction, reduces breakage of the stress to decorative layer of temperature change.
Description
Technical field
The invention belongs to architectural engineering energy-saving heat preserving field, especially a kind of construction method of exterior-wall heat insulation.
Background technique
Under construction, exterior wall is basic heat exchange carrier, is the main construction part of indoor heat insulating.According to insulating layer
With the relative position of exterior wall, wall thermal insulation technology can be divided into exterior wall internal insulation, exterior insulation and three kinds of wall self-insulation.
Either exterior wall internal insulation or exterior insulation, there are mainly two types of for traditional form of construction work:
1, mounting method form of construction work
The form of construction work is by means of fixing piece or bonding mortar, in the direct paste heat-preserving material of outer wall outer side or inside.It should
Form of construction work needs first to clear up surface of wall, coats coat of plaster, makes surface of wall smooth, then successively adhesive insulating layer, smears anti-
Split mortar, then modification of surfaces.The deficiency of the form of construction work is that form of construction work is cumbersome, and construction efficiency is low.
2, spray coating method form of construction work
The form of construction work is that liquid insulating material is painted on main body wall surface, by foaming process, forms solid and protects
Warm layer.Although which necessarily smoothes out on main body wall surface with coat of plaster, however, there remains with coat of plaster by foaming
Insulation layer surface afterwards smoothes out, and also needs to be fixed with grid cloth or steel wire after floating, re-finishing surface layer.The form of construction work
Whole process is still relatively complicated.
For existing external walls heating insulation in addition to that cannot remove coat of plaster from, form of construction work is cumbersome outer, is also faced with because of heat transfer unevenness
The heat bridge of even generation, it is insulating layer internal condensation caused by internal-external temperature difference is excessive, mouldy or even the problem of drip.It is applied using mounting method
The insulated wall of work is also possible to cause to swell rupture at the contact gap of each plate because of thermal insulation material expanded by heating in summer.
Summary of the invention
For the prior art, there are above-mentioned deficiencies, and the present invention provides a kind of construction methods of exterior-wall heat insulation.The present invention gram
It has taken and must apply coat of plaster in the prior art, the shortcomings that insulating layer is easy to produce heat bridge effect, simplified working procedure, improve
Construction efficiency has saved construction cost.The heat bridge effect of insulating layer is alleviated simultaneously, and the residual water vapor bulbs of pressure extend and protect
The service life of warm wall.
Specifically, the present invention is achieved through the following technical solutions:
A kind of exterior wall heat-preserving construction method, includes the following steps:
S1, it builds embryophoric membrane: using finished product plate for template, an opening is built using at least side of wall as cavity wall
The holes such as embryophoric membrane, gap, plate between sealing plate material and plate and the gap between ground, plate end and window opening, door opening
Gap;
S2, it pours material: liquid foam thermal insulation material is poured into embryophoric membrane by opening;
S3, curing molding: after liquid foam thermal insulation material is foamed, standing solidification 2 ~ 6 hours, then seals embryophoric membrane opening.
The construction method of the upper exterior-wall heat insulation, the method for pouring material are as follows:
S1, the dosage that required liquid foaming material is calculated according to the volume and density requirement of embryophoric membrane cavity；
S2, foamed material presoma component is configured according to the performance requirement and dosage of thermal insulation material；
S3, liquid insulating material is poured to embryophoric membrane cavity；
At 25 ~ 35 °C, expansion rate is controlled in 0.05 ~ 0.1L/s for the casting process environment temperature control.
Preferably, at 30 °C, expansion rate is controlled in 0.08L/s for the casting process environment temperature control.
Pouring liquid insulating foamed material can be using pouring mode or mechanical-assisted pours by hand, it is preferable that use
Liquid foam rifle.
Preferably, in exterior wall heat-preserving construction method described above, the plate is multi-functional composite finished product plate, packet
Containing water absorption layer, mainboard layer, sealant, the water absorption layer is contacted with thermal insulation material, and the sealant is contacted with air, the mainboard
Layer is located among water absorption layer and sealant.
It is highly preferred that the water absorption layer is the water-absorbent materials such as superabsorbent fiber, high hydroscopic resin.
It is highly preferred that the mainboard layer there are several pores, air can be allowed to circulate in two sides.
It is highly preferred that the mainboard layer is cement fibrolite plate, calcium silicate board with microporous, plasterboard, glass magnesium board, heat insulation decoration integrated plate.
It is highly preferred that the seal film layer is to cover plastic film, can be worked together after liquid foaming material solidification with insulating layer,
Make the mainboard layer of plate ventilative by pore.
Preferably, the multi-functional composite finished product plate further includes heat insulating reflecting layer, and/or antidetonation layer, and/or fire prevention resistance
Fire layer, and/or other complex functional layers such as waterproof layer, and/or puigging.
Preferably, the liquid insulating material is polyurethane foam material, foamed cement, pnenolic aldehyde foam material.
Preferably, when sealing cavity is open, the wall sealing material is construction sealant.
The invention has the beneficial effects that:
(1) insulating layer is directly connected as an entirety with wall, plate and smears without removing template again without wall in the technology
Coat of plaster after grieshoch and installation solid insulating layer, reduces construction procedure, also reduces cost；
(2) thermal insulation material can be made to more uniformly spread using the present invention, reduces the heat bridge effect that local heating generates.With heat preservation
The water-absorbent material of layer contact can mitigate the problem of moisture condensation of the moisture inside wall and thermal insulation material, steam pressure expansion, reduce and protect
Adiabator material thermal resistance performance degradation.Pore on plate mainboard layer can reduce steam pressure, discharge the bulbs of pressure of decorative layer,
The crack of reduction architectural surface, fall off problem；
(3) construction method of the invention is suitable for a variety of construction environments such as exterior wall internal insulation, exterior insulation.It is used in the present invention
Multi-functional composite finished product plate can add according to the actual situation multiple functions layer carry out it is compound, meet a variety of demand scenes.
Detailed description of the invention
It, below will be to required use in embodiment description in order to illustrate more clearly of the technical solution in inventive embodiments
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is the perspective view of the exterior-wall heat insulation construction results in embodiment provided by the invention.
Fig. 2 is the sectional view of the exterior-wall heat insulation construction results in embodiment provided by the invention.
In figure:
1- outer wall body；2- mould plate；3- insulating layer；The side wall that 4- is connected with construction wall；The water absorption layer of 21 mould plates；
The body layer of 22- mould plate；The sealant of 23- mould plate.
Specific embodiment
The present invention is provided one and is poured using the embodiment of technical solution of the present invention and one using model in the prior art
The reference examples of method construction method illustrate beneficial effects of the present invention.The present embodiment is only used to explain the present invention, can not be considered as
To further limitation of the invention.
Embodiment is built with the wall in reference examples using Same Way, and experiment wall area is 5m wide × 2m high.Heat preservation
The polyurethane liquid foamed material that layer uses is identical, and cured insulating layer density is 3cm after control foaming, and density is that 35kg is often stood
Side.
The dimension of evaluation has the vapour pressure in construction working hour, heat insulation effect, insulating layer.
The calculation in construction working hour is that, from construction is started to wall heat insulation material curing molding spent time, unit is
Hour, the construction number of embodiment and reference examples is 2 people.
The evaluation method of heat insulation effect is, after construction is completed 24 hours in embodiment and reference examples, when identical
Between the strong inside and outside temperature of point acquisition insulated wall, calculate temperature difference.
The vapour pressure measurement method of insulating layer is with up and down foot and middle position of the steam pressure sensor in wall
Set acquisition Vapor pressure data.
Embodiment
A kind of construction method of exterior-wall heat insulation, steps are as follows:
S1, in the inside of exterior wall, four corners and center fix support respectively up and down；
S2, multi-functional composite finished product plate (hereinafter referred to as plate) are formed parallel to be fixedly connected by fixed support with wall,
Plate is 3cm at a distance from wall；Plate, wall medial surface, ground, two flank wall medial surfaces being connect with main body wall, totally 5
A face is formed with the cavity of a upward opening.
S3, with the gap between construction sealant sealing plate material and plate, contact gap, plate and side of the plate with ground
The contact gap of face wall.
S4,2.5L polyurethane liquid foaming raw material, foaming process environment are slowly perfused into cavity by upper opening by hand
Temperature is 28 degrees Celsius, expansion rate 0.1L/s；
S5, it is that 1cm plate seals upper opening using width, is sealed at gap with construction sealant.
After S6, foaming 3h, polyurethane insulation coating is had been cured, and forms insulating layer.
Using construction method provided in this embodiment, the construction of heat preserving exterior wall is carried out to the wall of a stifled 5m wide × 2m high,
Multifunction combined plates are made of water absorption layer, mainboard layer, sealant, and water absorption layer is SAF absorbent polymer fiber.Construction is time-consuming
1h.After construction 7 days, the noon is selected, tests the temperature difference inside and outside exterior wall, measures five groups of data, mean temperature difference result is 6.0
Degree Celsius.
Reference examples
A kind of construction method of heat preserving exterior wall, steps are as follows:
S1, polyurethane Moistureproof primer is filled in base course wall；
S2, spraying polyurethane liquid foaming material, coating thickness 3cm；
S3, after spraying polyurethane liquid foaming material 5 hours, in polyurethane liquid foamed material outer surface sprayed-on polymer circle
Facing sand slurry；
S4, do standard thickness floating screed with the levelling slurry of glue powder polyphenyl particle, smear point twice glue powder polyphenyl particle slurry carry out it is levelling,
It is every all over interval 24 hours；
S5, construction of leveling blanket complete 3 days after, use conventional method carry out anticracking grout layer and finish coat construction.
The construction method provided using this reference examples carries out the construction of heat preserving exterior wall to the wall of a stifled 5m wide × 2m high,
It is 5 days time-consuming, it is under the identical environment of above-described embodiment, test the temperature difference inside and outside exterior wall, mean temperature difference is 4.2 Celsius
Degree.
Claims (10)
1. a kind of construction method of exterior-wall heat insulation, which is characterized in that include the following steps:
S1, it builds embryophoric membrane: using finished product composite board for template, built one using at least side of wall as cavity wall and opened
The embryophoric membrane of mouth, gap, plate between sealing plate material and plate and the gap between ground, plate end and window opening, door opening etc.
The gap at hole;
S2, it pours material: liquid foam thermal insulation material is poured into embryophoric membrane by opening;
S3, curing molding: after liquid foam thermal insulation material is foamed, 2 ~ 6h of solidification, sealing embryophoric membrane opening are stood.
2. the construction method of exterior-wall heat insulation according to claim 1, which is characterized in that the method for pouring material are as follows:
S1, the dosage that required liquid foaming material is calculated according to the volume and density requirement of embryophoric membrane cavity；
S2, foamed material presoma component is configured according to the performance requirement and dosage of thermal insulation material；
S3, liquid insulating material is poured to embryophoric membrane cavity；
At 25 ~ 35 °C, expansion rate is controlled in 0.05 ~ 0.1L/s for the casting process environment temperature control.
3. exterior wall heat-preserving construction method according to claim 2, which is characterized in that the plate is multi-functional composite finished product
Plate includes water absorption layer, mainboard layer, sealant, and the water absorption layer is contacted with thermal insulation material, and the sealant is contacted with air,
The mainboard layer is located among water absorption layer and sealant.
4. exterior wall heat-preserving construction method according to claim 3, which is characterized in that the water absorption layer be superabsorbent fiber,
The water-absorbent materials such as high hydroscopic resin.
5. exterior wall heat-preserving construction method according to claim 3, which is characterized in that there is several ventilative on the mainboard layer
Pore.
6. the exterior wall heat-preserving construction method according to claim 3 or 5, which is characterized in that the mainboard layer is Cement fibre
Plate, calcium silicate board with microporous, plasterboard, glass magnesium board, heat insulation decoration integrated plate.
7. exterior wall heat-preserving construction method according to claim 3, which is characterized in that the seal film layer is to cover plastic film, institute
State cover plastic film can liquid foaming material solidification after be detached from mainboard layer.
8. exterior wall heat-preserving construction method according to claim 3, which is characterized in that the multi-functional composite finished product plate is also
Including heat insulating reflecting layer, and/or antidetonation layer, and/or fire protection flame retarding layer, and/or waterproof layer, and/or puigging etc., other are compound
Functional layer.
9. exterior wall heat-preserving construction method according to claim 1, which is characterized in that the liquid insulating foamed material is poly-
Urethane foamed material, foamed cement, pnenolic aldehyde foam material.
10. exterior wall heat-preserving construction method according to claim 2, which is characterized in that the blowing temperature control is 30 °C,
Expansion rate is controlled in 0.08L/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606677.2A CN110331789A (en) | 2019-07-06 | 2019-07-06 | A kind of construction method of exterior-wall heat insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606677.2A CN110331789A (en) | 2019-07-06 | 2019-07-06 | A kind of construction method of exterior-wall heat insulation |
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| CN110331789A true CN110331789A (en) | 2019-10-15 |
Family
ID=68143827
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|---|---|---|---|---|
| JP2001293710A (en) * | 2000-04-14 | 2001-10-23 | Sekisui Chem Co Ltd | Method for manufacturing wall panel |
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| CN208072752U (en) * | 2018-04-13 | 2018-11-09 | 吉林建筑大学 | A kind of heat-insulating construction material plate |
| CN208088560U (en) * | 2018-04-04 | 2018-11-13 | 山东众屹建筑科技有限公司 | A kind of foam-in-place polyurethane external wall heat insulation system |
-
2019
- 2019-07-06 CN CN201910606677.2A patent/CN110331789A/en active Pending
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|---|---|---|---|---|
| JP2001293710A (en) * | 2000-04-14 | 2001-10-23 | Sekisui Chem Co Ltd | Method for manufacturing wall panel |
| CN1944831A (en) * | 2006-10-18 | 2007-04-11 | 康玉范 | Process for producing outer heat insulation wall by on-site pouring polyurethane heat insulation layer real stone paint decoration surface |
| CN101545293A (en) * | 2009-04-10 | 2009-09-30 | 程争鸣 | Insulation wall and manufacturing process thereof |
| CN106220055A (en) * | 2016-07-14 | 2016-12-14 | 江苏特友诺新材料科技有限公司 | A kind of prevent interior wall from getting damp the protective plate and preparation method thereof of condensation |
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| 韩喜林: "《新型防水材料应用技术》", 31 March 2003, 中国建材工程出版社 * |
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Application publication date: 20191015 |
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