CN111794391A - Construction process for high-air-tightness deformation joint of passive house - Google Patents
Construction process for high-air-tightness deformation joint of passive house Download PDFInfo
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- CN111794391A CN111794391A CN202010637547.8A CN202010637547A CN111794391A CN 111794391 A CN111794391 A CN 111794391A CN 202010637547 A CN202010637547 A CN 202010637547A CN 111794391 A CN111794391 A CN 111794391A
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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
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/665—Sheets or foils impervious to water and water vapor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a construction process of a high-air-tightness deformation joint of a passive house, which comprises the following steps: the base layer in the deformation joint is firm, dry, flat, dust-free and oil-free; secondly, gaps between the EPS boards and the beams are all filled with polyurethane foaming glue; (III) all the insulation boards at the bottom of the beam, on the board surface or on the wall surface are processed and cut; (IV) treating a base layer around the deformation joint; fifthly, a cement mortar leveling layer is smeared; sixthly, smearing a cement paste bonding layer; removing the isolating film on the lower surface of the self-adhesive waterproof roll; laying self-adhesive waterproof coiled materials; and (ninthly), airing and placing. The EPS board is used as a substrate, and a layer of self-adhesive waterproof coiled material is covered on the EPS board for plugging, so that an excellent air tightness effect is achieved in a later air tightness test, the construction is convenient, and the cost is low.
Description
Technical Field
The invention relates to a construction process of a high-air-tightness deformation joint of a passive house, and belongs to the technical field of building construction.
Background
With the popularization of passive ultralow-energy-consumption buildings, how to avoid the generation of cold bridges and ensure the air tightness of the whole building are key points of passive ultralow-energy-consumption building construction, the treatment of deformation joints of the passive buildings is one of construction difficulties, the traditional buildings have no special requirements on the parts, and the traditional buildings can be referred to as a new passive building construction process without a mature and effective construction method, only sealing is carried out according to an air-tight waterproof air-barrier film at a window sealing part, but the width of the waterproof air-barrier film in the market can not meet the requirements, and the durability effect of the waterproof air-barrier film is not ideal. Therefore, more excellent materials need to be selected, and an advanced construction process is adopted to ensure the air tightness of the deformation joint of the building. Through communication with designers, the EPS board is used as a substrate, and a layer of self-adhesive waterproof coiled material is covered on the EPS board for plugging, so that an excellent air tightness effect is achieved in a later air tightness test, the construction is convenient, and the cost is low; the construction method mainly explains the characteristics of the passive house deformation joint air tightness and the construction process in detail.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a construction process of a high-air-tightness deformation joint of a passive house.
In order to solve the technical problems, the invention adopts the technical scheme that:
the base layer in the deformation joint (I) is firm, dry, flat, dust-free and oil-free, and the impurities such as dust, sand grains and the like in the base layer are cleaned up and blown up by a dust collector or a high-pressure dust blower when necessary.
And (II) gaps between the EPS boards and the beams are completely filled with polyurethane foaming glue.
And (III) all the insulation boards at the beam bottom, the board surface or the wall surface are processed and cut, and a plane is formed between the insulation boards and the beam bottom, the board surface or the wall surface.
(IV) treating a base layer around the deformation joint: the surface of the base layer should be treated first to make the base layer firm, clean and fully wet without water accumulation.
And (V) plastering a cement mortar leveling layer: the thickness of the cement mortar is generally 10 mm-20 mm (according to the leveling condition of the base layer), and when the cement mortar is spread, the cement mortar is compacted and the wood trowel is trowelled. At the internal corner, a fillet with the radius of 50mm is needed to be smeared.
And (VI) plastering a cement paste bonding layer: and (3) smearing the cement paste on the fully wet base layer, wherein the thickness is preferably 3-5 mm.
And (seventhly) removing the isolating film on the lower surface of the self-adhesive waterproof roll.
(eight) paving self-adhesive waterproof rolls: and spreading the self-adhesive waterproof roll on the cement paste. The coiled materials are in parallel butt joint with the adjacent coiled materials, and butt joints are spliced as tightly as possible. (when the lapping mode is adopted, the upper surface lapping part isolating film of the lower layer coiled material and the lower surface isolating film of the upper layer coiled material are removed, and then the lapping is compact.) the self-adhesive waterproof coiled material is pasted, each side of the width exceeds the deformation joint by 10cm, and the lapping length of the lapping part of the coiled material exceeds 10 cm.
And (ninthly), airing and placing: and (3) airing for 24 to 48 hours (the specific time depends on the ambient temperature, and generally, the higher the temperature, the shorter the time is).
(ten) sealing the interface: and sealing with an additional self-adhesive sealing strip. When the interface is sealed, the isolating film on the surface of the lap joint part of the coiled material is firstly removed, and then the additional self-adhesive sealing strip is stuck. If the lap joint part is polluted, the lap joint part needs to be cleaned up firstly.
When the self-adhesive waterproof coiled material is laid on the vertical wall, the closing part of the coiled material is temporarily sealed (can be sealed by using adhesive tape or thickened cement paste) so as to prevent the water at the closing part of the vertical wall from being dissipated too quickly.
And (twelfth) directly nailing the coiled material head on the plate surface or the vertical wall by using a metal pressing strip with the width of 20mm and a cement nail.
And (thirteen) sealing the cover plate by using a stainless steel decorative cover plate and sealing by using a sealing material.
Process features of the invention
1 movement joint fills the heated board all around along the corridor, and it is 1 meter to fill the degree of depth to seal fixedly with the polyurethane foam, prevent that cold bridge from appearing in movement joint department.
2 sticking self-adhesive coiled materials along the periphery of the corridor at the deformation joint, and fixing the self-adhesive coiled materials by using a stainless steel pressing strip; the function here is to improve the building leakproofness, prevent gas leakage.
3 the suspended ceiling, the vertical surface and the ground part on the top of the corridor are covered by stainless steel decoration panels.
The process of the invention has the application range
The method is suitable for the situation that the passive ultra-low energy consumption green building has deformation joints and through holes such as corridors and channels.
The invention's process principle
The EPS polyphenyl plates are filled along the periphery of the deformation joint, and cold bridges are prevented from being generated in the deformation joint at the corridor by utilizing the heat insulation performance of the EPS plates; the self-adhesive waterproof coiled material is adhered, so that the air tightness of the deformation joint is ensured by utilizing the air insulation performance of the coiled material, and the aim of avoiding the passive building heat-insulation air-insulation weak link at the deformation joint is fulfilled.
The key technology is as follows:
1. the EPS polyphenyl plates are filled along the periphery of the deformation joint, and cold bridges are prevented from being generated in the deformation joint at the corridor by utilizing the heat insulation performance of the EPS plates; the self-adhesive waterproof coiled material is adhered, so that the air tightness of the deformation joint is ensured by utilizing the air insulation performance of the coiled material, and the aim of avoiding the passive building heat-insulation air-insulation weak link at the deformation joint is fulfilled.
2. The deformation joint fills the heated board all around along the corridor, and it is 1 meter to fill the degree of depth to seal fixedly with the polyurethane foam, prevent that cold bridge from appearing in deformation joint department.
3. The deformation joint is adhered with a self-adhesive coiled material along the periphery of the corridor and is fixed by a stainless steel pressing strip; the function here is to improve the building leakproofness, prevent gas leakage.
4. The suspended ceiling, the vertical surface and the ground part on the top of the corridor are covered by stainless steel decoration panels.
Technical level and technical difficulty (including comparison with similar technical levels at home and abroad):
with the popularization of the passive ultralow-energy-consumption building, how to avoid the generation of cold bridges and ensure the air tightness of the whole building is the key point of the passive ultralow-energy-consumption building construction, the treatment of deformation joints of the passive ultralow-energy-consumption building is one of the construction difficulties, the traditional building has no special requirements on the part, the construction method uses the EPS board as a substrate, and covers a layer of self-adhesive waterproof coiled material for plugging, so that the excellent air tightness effect is achieved in the later air tightness test, the construction is convenient, and the cost is low.
The EPS polyphenyl plates are filled along the periphery of the deformation joint, and cold bridges are prevented from being generated in the deformation joint at the corridor by utilizing the heat insulation performance of the EPS plates; the self-adhesive waterproof coiled material is adhered, so that the air tightness of the deformation joint is ensured by utilizing the air insulation performance of the coiled material, and the aim of avoiding the passive building heat-insulation air-insulation weak link at the deformation joint is fulfilled.
In conclusion, the construction method has the advantages of reasonable process, mature technology, strong applicability and operability, innovation of key technology, and realization of the key technology level reaching the domestic advanced level.
The construction method has the following application conditions and popularization and application prospects:
the passive ultra-low energy consumption building is the key point of construction in how to avoid the generation of cold bridges and ensure the air tightness of the whole building, the treatment of deformation joints of the passive building is one of construction difficulties, the traditional building has no special requirements on the part, the construction method uses the EPS boards as the substrate, and a layer of self-adhesive waterproof coiled material is covered on the EPS boards for plugging, so that the excellent air tightness effect is achieved in the later air tightness test, the construction is convenient, and the cost is low.
The construction method is successfully applied to construction projects of model pile test bases 4# building and biotechnology research and development centers in Dongying cities, the technical and economic effects are obvious, the working efficiency is improved, and the construction cost is reduced. Therefore, the construction method has good popularization and application prospects.
Has the advantages that:
economic benefits are as follows: the construction method of the high-air-tightness deformation joint of the passive house uses the EPS boards as the substrate, and covers a layer of self-adhesive waterproof coiled material for plugging, so that an excellent air-tightness effect is achieved in the later air-tightness test, the construction is convenient, and the cost is low.
Social benefits are as follows: the passive ultra-low energy consumption building is the key point of construction in how to avoid the generation of cold bridges and ensure the air tightness of the whole building, the treatment of deformation joints of the passive building is one of construction difficulties, the traditional building has no special requirements on the part, the construction method actively overcomes the defects, an EPS board is used as a substrate, and a layer of self-adhesive waterproof coiled material is covered on the EPS board for plugging, so that the deformation joints of the passive building meet the requirement of high air tightness, the generation of the cold bridges is successfully avoided, the air tightness of the whole building is ensured, a novel and low-cost method is provided for the building with the requirement of air tightness, and the social benefit is remarkable.
Detailed Description
Example 1
The construction process of the high-air-tightness deformation joint of the passive house provided by the embodiment comprises the following steps:
the base layer in the deformation joint (I) is firm, dry, flat, dust-free and oil-free, and the impurities such as dust, sand grains and the like in the base layer are cleaned up and blown up by a dust collector or a high-pressure dust blower when necessary.
And (II) gaps between the EPS boards and the beams are completely filled with polyurethane foaming glue.
And (III) all the insulation boards at the beam bottom, the board surface or the wall surface are processed and cut, and a plane is formed between the insulation boards and the beam bottom, the board surface or the wall surface.
(IV) treating a base layer around the deformation joint: the surface of the base layer should be treated first to make the base layer firm, clean and fully wet without water accumulation.
And (V) plastering a cement mortar leveling layer: the thickness of the cement mortar is generally 10 mm-20 mm (according to the leveling condition of the base layer), and when the cement mortar is spread, the cement mortar is compacted and the wood trowel is trowelled. At the internal corner, a fillet with the radius of 50mm is needed to be smeared.
And (VI) plastering a cement paste bonding layer: and (3) smearing the cement paste on the fully wet base layer, wherein the thickness is preferably 3-5 mm.
And (seventhly) removing the isolating film on the lower surface of the self-adhesive waterproof roll.
(eight) paving self-adhesive waterproof rolls: and spreading the self-adhesive waterproof roll on the cement paste. The coiled materials are in parallel butt joint with the adjacent coiled materials, and butt joints are spliced as tightly as possible. (when the lapping mode is adopted, the upper surface lapping part isolating film of the lower layer coiled material and the lower surface isolating film of the upper layer coiled material are removed, and then the lapping is compact.) the self-adhesive waterproof coiled material is pasted, each side of the width exceeds the deformation joint by 10cm, and the lapping length of the lapping part of the coiled material exceeds 10 cm.
And (ninthly), airing and placing: and (3) airing for 24 to 48 hours (the specific time depends on the ambient temperature, and generally, the higher the temperature, the shorter the time is).
(ten) sealing the interface: and sealing with an additional self-adhesive sealing strip. When the interface is sealed, the isolating film on the surface of the lap joint part of the coiled material is firstly removed, and then the additional self-adhesive sealing strip is stuck. If the lap joint part is polluted, the lap joint part needs to be cleaned up firstly.
When the self-adhesive waterproof coiled material is laid on the vertical wall, the closing part of the coiled material is temporarily sealed (can be sealed by using adhesive tape or thickened cement paste) so as to prevent the water at the closing part of the vertical wall from being dissipated too quickly.
And (twelfth) directly nailing the coiled material head on the plate surface or the vertical wall by using a metal pressing strip with the width of 20mm and a cement nail.
And (thirteen) sealing the cover plate by using a stainless steel decorative cover plate and sealing by using a sealing material.
Example 2 example of application
1 Dongying city model pile test base 4# building, enclosing wall and guard house engineering
A model pile test base 4# building, enclosing wall and guard room engineering in Dongying city has a total building area of 3707 square meters, is a first passive ultra-low energy consumption green building in Dongying city, has deformation joints which are weak links of air tightness, and adopts self-adhesion type waterproof coiled materials for pasting construction. The method is evaluated from the stages of acceptance detection, construction process and quality acceptance of material entering a field, and the units of construction, supervision, quality supervision and the like are confirmed in the aspects of work efficiency, construction period and quality assurance. By adopting the construction method, the construction speed is accelerated (20 days ahead), the cost is reduced, and the quality and the safety of the engineering are ensured.
2 Biotechnology research and development center construction project
The construction project of the biotechnology research and development center is No. 393 of Beijing road in the North region of Qingdao city, the extended line of Baiquan road is south, the east is temporary open space, the West faces the main trunk road of south Jing road, the south faces the center of animal health and epidemiology, and the north faces the extended line of Baiquan road. The total building area of the project is 31453.77 square meters, the frame and core tube structure, two underground layers, seventy layers above the ground, the total height of the building is 74.00 meters, and the height of the skirt house is 14.8 meters. The good air tightness of a part of laboratories of the project needs to be ensured, the construction method is adopted for construction, the field rework and the construction period are reduced, the construction quality and the construction safety are improved, the construction period is shortened, and the construction quality and the construction safety are effectively ensured.
Claims (1)
1. The construction process of the high-air-tightness deformation joint of the passive house is characterized by comprising the following steps of:
the base course in the deformation joint is firm, dry, flat, dust-free and oil-free, the impurities such as dust, sand grains and the like of the base course are cleaned, and the impurities are blown clean by a dust collector or a high-pressure dust blower when necessary;
secondly, gaps between the EPS boards and the beams are all filled with polyurethane foaming glue;
thirdly, all the insulation boards at the beam bottom, the board surface or the wall surface are processed and cut, and a plane is formed between the insulation boards and the beam bottom, the board surface or the wall surface;
(IV) treating a base layer around the deformation joint: the surface of the base layer is treated first to ensure that the base layer is solid, clean and fully wet without water accumulation;
and (V) plastering a cement mortar leveling layer: the thickness of the cement mortar is 10 mm-20 mm, the cement mortar is compacted when being paved, and the wooden trowel is trowelled; a fillet with the radius of 50mm is smeared at the internal corner;
and (VI) plastering a cement paste bonding layer: smearing cement paste on a fully wet base layer, wherein the thickness of the cement paste is 3-5 mm;
removing the isolating film on the lower surface of the self-adhesive waterproof roll;
(eight) paving self-adhesive waterproof rolls: paving the self-adhesive waterproof coiled material on cement paste; the coiled materials are in parallel butt joint with the adjacent coiled materials, and butt joints are spliced as tightly as possible; sticking a self-adhesive waterproof coiled material, wherein each side of the width of the self-adhesive waterproof coiled material exceeds the deformation joint by 10cm, and the lap joint length of the lap joint part of the coiled material exceeds 10 cm;
and (ninthly), airing and placing: airing for 24 to 48 hours;
(ten) sealing the interface: sealing by adopting an additional self-adhesive sealing strip; when the interface is sealed, the isolating film on the surface of the lap joint part of the coiled material is firstly removed, and then the additional self-adhesive sealing strip is stuck; if the lap joint part is polluted, cleaning the lap joint part;
when the self-adhesive waterproof coiled material is laid on the vertical wall, the closing part of the coiled material is temporarily sealed by using an adhesive tape or thickened cement paste to prevent the quick loss of water at the closing part of the vertical wall;
(twelfth) directly nailing the coiled material head on the plate surface or the vertical wall by using a metal pressing strip with the width of 20mm and a cement nail;
and (thirteen) sealing the cover plate by using a stainless steel decorative cover plate and sealing by using a sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010637547.8A CN111794391A (en) | 2020-07-05 | 2020-07-05 | Construction process for high-air-tightness deformation joint of passive house |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010637547.8A CN111794391A (en) | 2020-07-05 | 2020-07-05 | Construction process for high-air-tightness deformation joint of passive house |
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| CN111794391A true CN111794391A (en) | 2020-10-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386135A (en) * | 2023-11-07 | 2024-01-12 | 上海宝冶集团有限公司 | Construction method for realizing air tightness of negative pressure ward |
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| AU2012101755A4 (en) * | 2012-11-29 | 2013-01-10 | Stephen Johnson | Waterproofing System for Wet Areas |
| CN109322412A (en) * | 2018-10-15 | 2019-02-12 | 筑梦高科建筑有限公司 | Waterproof roll is mechanically fixed construction technology |
| CN109898758A (en) * | 2019-04-01 | 2019-06-18 | 山东浩岳建设工程有限公司 | Cement mortar pastes the construction method that BAC waterproof roll elder generation screed-coat does waterproof layer again |
| CN110130518A (en) * | 2019-04-30 | 2019-08-16 | 中建八局第二建设有限公司 | A kind of passive type building basement exterior wall heat-preserving construction method |
| CN111042447A (en) * | 2019-12-02 | 2020-04-21 | 江苏省建筑工程集团有限公司 | Roof deformation joint structure and construction method thereof |
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2020
- 2020-07-05 CN CN202010637547.8A patent/CN111794391A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012101755A4 (en) * | 2012-11-29 | 2013-01-10 | Stephen Johnson | Waterproofing System for Wet Areas |
| CN109322412A (en) * | 2018-10-15 | 2019-02-12 | 筑梦高科建筑有限公司 | Waterproof roll is mechanically fixed construction technology |
| CN109898758A (en) * | 2019-04-01 | 2019-06-18 | 山东浩岳建设工程有限公司 | Cement mortar pastes the construction method that BAC waterproof roll elder generation screed-coat does waterproof layer again |
| CN110130518A (en) * | 2019-04-30 | 2019-08-16 | 中建八局第二建设有限公司 | A kind of passive type building basement exterior wall heat-preserving construction method |
| CN111042447A (en) * | 2019-12-02 | 2020-04-21 | 江苏省建筑工程集团有限公司 | Roof deformation joint structure and construction method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386135A (en) * | 2023-11-07 | 2024-01-12 | 上海宝冶集团有限公司 | Construction method for realizing air tightness of negative pressure ward |
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Application publication date: 20201020 |