CN115893930A - Polyphenyl particle aerogel composite thermal insulation material, energy-saving system and construction method thereof - Google Patents
Polyphenyl particle aerogel composite thermal insulation material, energy-saving system and construction method thereof Download PDFInfo
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- CN115893930A CN115893930A CN202211269768.XA CN202211269768A CN115893930A CN 115893930 A CN115893930 A CN 115893930A CN 202211269768 A CN202211269768 A CN 202211269768A CN 115893930 A CN115893930 A CN 115893930A
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- 239000004964 aerogel Substances 0.000 title claims abstract description 57
- 239000002131 composite material Substances 0.000 title claims abstract description 53
- 229920006389 polyphenyl polymer Polymers 0.000 title claims abstract description 50
- 239000012774 insulation material Substances 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 38
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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
-
- 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
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- Building Environments (AREA)
Abstract
The invention discloses a polyphenyl particle aerogel composite thermal insulation material, an energy-saving system and a construction method thereof, wherein the energy-saving system comprises a wall body base layer, composite thermal insulation mortar, an elastic putty layer and a reflective thermal insulation coating, the polyphenyl particle aerogel composite thermal insulation material, the elastic putty layer and the reflective thermal insulation coating are sequentially arranged on the outer side of the wall body base layer, and the polyphenyl particle aerogel composite thermal insulation material comprises the following materials in parts by weight: 750-800 parts of cement, 75-80 parts of wollastonite powder, 45-55 parts of black diamond, 30-33 parts of rubber powder, 0.5-1.0 part of water reducing agent, 0.5-1.0 part of water increasing agent, 7.5-8.0 parts of cellulose, 2.0-2.5 parts of aerogel and 45-55 parts of particles; the novel energy-saving system takes the composite heat-preservation daub as the heat-preservation layer and takes the building reflective heat-preservation coating as the reflective heat-preservation and decorative layer, can solve the common phenomena of cracking and water seepage of the external wall heat-preservation material, and has low density and good heat-preservation and heat-preservation performance.
Description
Technical Field
The invention relates to the technical field of wall structures, in particular to a polyphenyl particle aerogel composite thermal insulation material, an energy-saving system and a construction method thereof.
Background
In recent years, the reflective heat-insulating coating for buildings is widely applied to areas which are warm in summer and warm in winter and cold in summer and hot in winter as a novel functional building coating. In hot summer and cold winter areas, in the outer walls of special buildings, for example, the outer walls of energy-saving building blocks (such as core hole inserted insulation board concrete blocks, aerated concrete blocks and the like) without an outer wall outer insulation system are matched with insulation putty to be applied to form a reflective insulation coating-insulation putty system for buildings, so that the design requirement on building energy conservation can be met, the effects of reducing the surface temperature of the wall body and preventing cracking in summer can be exerted to a certain extent, and a better application effect is obtained. When the inorganic thermal insulation mortar is applied to a masonry wall with a good energy-saving effect, the matched inorganic thermal insulation mortar has poor performance, poor physical and mechanical properties or poor economic performance and the like. The poor application effect of the inorganic thermal insulation mortar is a direct obstacle influencing the application of the reflective thermal insulation coating of the building.
The inorganic thermal insulation mortar has poor performance and has inherent reasons, which are direct results of the action mechanism of the traditional thermal insulation materials. Firstly, as inorganic thermal mortar, the inorganic thermal mortar needs to have necessary physical and mechanical properties, including adhesive strength, water resistance, early-stage drying crack resistance, flexibility and the like; secondly, the particle size of the prepared inorganic heat-preservation and heat-insulation aggregate cannot be too large. Since the particle size of the thermal insulating aggregate is limited, this means that a large surface area exists in the inorganic insulating material component, or a large interface exists between the material particles. This large surface area is bound by the binder and the inorganic insulating material is bound to the substrate. Therefore, the dosage of the cementing agent is enough, otherwise, the physical and mechanical properties of the cementing agent cannot meet the requirements, and the use is influenced.
In addition, along with the continuous promotion of building energy conservation, higher requirements are put forward to the building energy conservation work. At present, the external thermal insulation technology of the external wall develops towards the integration of high efficiency, thin layer, heat insulation, water resistance and external protection, and the research on the external thermal insulation system of the external wall is continuously deepened. The external thermal insulation system of the thermal insulation cement-reflective thermal insulation coating external wall consists of an interface layer, a waterproof mortar leveling layer, a thermal insulation cement thermal insulation layer, an anti-cracking protective layer, a bottom coating and a decorative coating. The heat-insulating mortar-reflective heat-insulating coating external wall heat-insulating system is an external wall heat-insulating system formed from heat-insulating mortar, anti-crack mortar, alkali-resisting mesh fabric, elastic seal primer, reflective heat-insulating coating for building or hot-galvanized steel wire mesh and face brick. The system is divided into two parts, namely heat-insulating daub and reflective heat-insulating coating. The system is a new heat preservation technology and has the characteristics of high fire resistance limit, easiness in construction and the like.
The existing coating used on the outer surface of a building is mostly environmentally-friendly, and has a large amount of radiation heat-conducting substances, after the coating is used, the coating which cannot reflect light and heat can absorb a large amount of heat to be conducted to a wall body in a heat conduction mode, after the wall body is heated, the indoor temperature can rise, the service life of the air conditioner can be prolonged to a great extent, as is well known, freon can be added in the using process of the air conditioner, is one of substances which destroy the atmosphere and is not beneficial to environmental protection, and secondly, after the heat absorption, the coating on the outer surface of the building can crack and peel under the condition of large temperature difference day and night, the anti-staining capability can be poor while the appearance is influenced, the anti-staining capability can also be poor, rainwater can be accumulated at the cracked place of the coating, thereby generating magnetic bacteria, not only the building surface is blackened, but also the thermal insulation effect of the coating is limited, and the stability of the coating is poor.
Disclosure of Invention
The invention aims to provide a polyphenyl particle aerogel composite thermal insulation material, an energy-saving system and a construction method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical means:
the polyphenyl particle aerogel composite thermal insulation material comprises the following materials in parts by weight: 750-800 parts of cement, 75-80 parts of wollastonite powder, 45-55 parts of black diamond, 30-33 parts of rubber powder, 0.5-1.0 part of water reducing agent, 0.5-1.0 part of water increasing agent, 7.5-8.0 parts of cellulose, 2.0-2.5 parts of aerogel and 45-55 parts of particles.
Further, the polyphenyl particle aerogel composite thermal insulation material comprises the following materials in parts by weight: cement 780, wollastonite powder 78, black diamond 50, rubber powder 31.4, a water reducing agent 0.8, a water increasing agent 0.6, cellulose 7.8, aerogel 2.4 and particles 50.
Further, the cement is emulsion powder portland cement.
Further, the particles comprise coarse-particle-size heat-preservation and heat-insulation aggregate and fine-particle-size heat-preservation and heat-insulation aggregate, and the material ratio of the coarse-particle-size heat-preservation and heat-insulation aggregate to the fine-particle-size heat-preservation and heat-insulation aggregate is 2-5:1.
Further, the particle size of the coarse-particle-size heat-preservation and heat-insulation aggregate is 3-5mm, and the particle size of the fine-particle-size heat-preservation and heat-insulation aggregate is smaller than 2mm.
Furthermore, the coarse-particle-size heat-insulating aggregate is formed by one or more materials of polystyrene foam particles, expanded perlite and vitrified micro-beads, and the fine-particle-size heat-insulating aggregate is a fly ash hollow micro-bead material.
An energy-saving system comprises a wall body base layer, a polyphenyl particle aerogel composite thermal insulation material, an elastic putty layer and a reflective thermal insulation coating, wherein a waterproof layer is arranged on the outer side of the wall body base layer, and the polyphenyl particle aerogel composite thermal insulation material, the elastic putty layer and the reflective thermal insulation coating are sequentially arranged on the outer side of the waterproof layer.
Furthermore, an anti-impact reinforcing piece is laid in the elastic putty layer.
Further, the anti-impact reinforcing piece is alkali-resistant mesh cloth.
Further, the reflective heat insulation coating comprises an elastic primer coating, and the elastic primer coating is coated with the reflective heat insulation coating in sequence.
Compared with the prior art, the invention has the following beneficial effects:
the novel energy-saving system takes the polyphenyl particle aerogel composite heat-insulating material as the heat-insulating layer and the building reflective heat-insulating coating as the reflective heat-insulating and decorating layer, can be suitable for the heat-insulating structures of the outer wall heat-insulating, inner wall heat-insulating, floor heat-insulating, partition wall heat-insulating and roof heat-insulating of newly-built and old wall energy-saving reconstruction buildings, can solve the common cracking and water seepage phenomena of the outer wall heat-insulating material, has low density and good heat-insulating and heat-insulating properties, can form the heat-insulating layer on the wall surface, is firmly combined with the wall surface, does not have a cavity between the heat-insulating and energy-saving system and a wall body base layer, has simple structure, simple construction, short construction period and low labor cost, enhances the sunlight reflecting property of the building outer surface to sunlight, reduces the absorption of the sunlight heat radiation of the outer wall to the sunlight, and obviously improves the functions of reflecting the sunlight and insulating.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a product of the present invention;
wherein: 1. a wall body base layer; 2. polyphenyl particle aerogel composite thermal insulation material; 3. an elastic putty layer; 4. a reflective thermal barrier coating; 5. a waterproof layer; 6. and (3) an elastic primer coating.
The specific implementation mode is as follows:
in order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention is further described below with reference to the following examples:
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention relates to a method for preparing a composite material, which comprises the following steps: see the drawings.
In this embodiment, a polyphenyl particle aerogel composite thermal insulation material comprises the following components in parts by weight: 750-800 parts of cement, 75-80 parts of wollastonite powder, 45-55 parts of black diamond, 30-33 parts of rubber powder, 0.5-1.0 part of water reducing agent, 0.5-1.0 part of water increasing agent, 7.5-8.0 parts of cellulose, 2.0-2.5 parts of aerogel and 45-55 parts of particles.
Further, the polyphenyl particle aerogel composite thermal insulation material comprises the following materials in parts by weight: 780 parts of cement, 78 parts of wollastonite powder, 50 parts of black diamond, 31.4 parts of rubber powder, 0.8 part of water reducing agent, 0.6 part of water increasing agent, 7.8 parts of cellulose, 2.4 parts of aerogel and 50 parts of particles.
Through inspection, the polyphenyl particle aerogel composite thermal insulation material disclosed by the invention has the following properties:
TABLE 1 polyphenyl particle aerogel composite thermal insulation material Performance Table
Further, the cement is emulsion powder portland cement.
Further, the particles comprise coarse-particle-size heat-preservation and heat-insulation aggregate and fine-particle-size heat-preservation and heat-insulation aggregate, and the material ratio of the coarse-particle-size heat-preservation and heat-insulation aggregate to the fine-particle-size heat-preservation and heat-insulation aggregate is 2-5:1.
Further, the particle size of the coarse-particle-size heat-preservation and heat-insulation aggregate is 3-5mm, and the particle size of the fine-particle-size heat-preservation and heat-insulation aggregate is smaller than 2mm.
Furthermore, the coarse-particle-size heat-insulating aggregate is formed by one or more materials of polystyrene foam particles, expanded perlite and vitrified micro-beads, and the fine-particle-size heat-insulating aggregate is a fly ash hollow micro-bead material.
An energy-saving system comprises a wall body base layer, a polyphenyl particle aerogel composite thermal insulation material, an elastic putty layer and a reflective thermal insulation coating, wherein a waterproof layer is arranged on the outer side of the wall body base layer, and the polyphenyl particle aerogel composite thermal insulation material, the elastic putty layer and the reflective thermal insulation coating are sequentially arranged on the outer side of the waterproof layer.
In a specific embodiment of the invention, the impact-resistant reinforcement is laid in the elastic putty layer, the heat-insulating energy-saving system added with the impact-resistant reinforcement is a Q-type energy-saving system and is used for the first floor of a building or the part below 2m of the wall surface and having special requirements on impact resistance, and the heat-insulating energy-saving system not added with the impact-resistant reinforcement is a P-type energy-saving system and is used for the wall surface above 2m of the building.
Through inspection, the energy-saving system of the invention has the following performance of table 2
TABLE 2 Heat insulation and energy saving system performance table
Further, the anti-impact reinforcing piece is alkali-resistant mesh cloth.
Further, the reflective heat insulation coating comprises an elastic primer coating, and the elastic primer coating is coated with the reflective heat insulation coating in sequence.
A construction method of an energy-saving system comprises the following steps:
s1, basic layer processing and acceptance: checking the basic layer processing and acceptance to check whether the basic layer meets the requirements of the design and construction scheme; the base layer should be solid and flat; for the wall surface of an old building, the surface treatment of the wall surface of the old building meets the design requirements; laying hot-galvanized electric welding nets at the connecting stubbles of the wall bodies made of different materials for reinforcement, wherein the lap joint width of the electric welding nets along each side of the connecting stubbles meets the relevant specification;
s2, hanging a vertical line and sleeving a square: hanging vertical reference lines on the corner of a wall outside a building, an outer door and window, a deformation joint and other necessary places, and popping out horizontal and vertical control lines on the wall surface;
s3, making a plaster and a reinforcement: the method is characterized in that a polyphenyl particle aerogel composite thermal insulation material is used as a standard-thickness gray mould, then a rib is punched, the thickness of the rib is based on the highest position of a wall, the thickness of the polyphenyl particle aerogel composite thermal insulation material is not less than the designed thickness, and special-purpose protective angles are suitable for verticality inspection, and the positive angles of a door, a window and a bottom wall are suitable for being arranged;
s4, construction interface mortar: the interface of the base layer is uniformly and fully coated with interface mortar in a spraying or rolling coating mode;
s5, preparing the polyphenyl particle aerogel composite thermal insulation material, wherein the polyphenyl particle aerogel composite thermal insulation material is prepared according to a construction scheme and a product specification, mechanical stirring is adopted during preparation, the stirred mortar is uniform, the viscosity is convenient to construct, and the polyphenyl particle aerogel composite thermal insulation material is used up within 1.5 h;
s6, the polyphenyl particle aerogel composite thermal insulation material is constructed after interface mortar is dried and cured, and is constructed in a layered mode, the construction thickness of each time is not more than 15mm, the construction thickness is compacted and leveled, the construction interval time of two times is not less than 24 hours, and finally the reinforcement thickness is achieved, and the reinforcement thickness is compacted and leveled by a scraping bar; the bonding between the heat-insulating layer and the base layer and between the heat-insulating layers must be firm, and delamination, hollowing and cracking are avoided;
s7, maintaining and checking the polyphenyl particle aerogel composite thermal insulation material: the protection of the heat-insulating layer should be done within 24 hours after construction, and the maintenance time is not less than 7 days; water flushing, impact and vibration are strictly forbidden; before the anti-cracking protective layer is constructed, the heat-insulating layer is checked and accepted; repairing the heat-insulating layer when hollowing, cracking, loose surface, verticality, flatness, squareness of internal and external corners, smoothness and straightness and the like of the heat-insulating layer do not meet the requirements of the regulation;
and (3) S8 elastic putty construction: the elastic putty is uniformly constructed on the heat insulation layer and is constructed for multiple times until the required thickness is reached, and the construction of the later putty layer is carried out after the former putty layer is dried; the scraping of the last elastic putty layer is smooth and clean, and after construction, the uneven part is polished by abrasive paper; for the reinforced polyphenyl particle aerogel composite thermal insulation material-reflective thermal insulation coating energy-saving system, the alkali-resistant mesh cloth needs to be embedded into the elastic putty layer, and the alkali-resistant mesh cloth is strictly forbidden to be directly paved on the surface of the thermal insulation layer and then coated with the elastic putty; the stirred elastic putty is used up within (1.5-4) h, and water can not be added for stirring and reusing when the elastic putty is used;
s9, construction of alkali-resistant mesh cloth: 1. paving an alkali-resistant mesh cloth, and paving the alkali-resistant mesh cloth in the heat-insulating layer when the thickness of the heat-insulating layer of the polyphenyl particle aerogel composite heat-insulating material exceeds 25 mm; when the grid cloth is laid, firstly, the alkali-resistant grid cloth at the door and window openings must be turned over and edged; then, an alkali-resistant mesh cloth with the size of 300m multiplied by 400m is respectively arranged at certain corners of the door and window opening, and the paving direction is 45 degrees; after the above-mentioned working procedure is completed, the alkali-resisting grid cloth can be stuck on the large surface;
pasting large-area alkali-resistant mesh cloth: within the operable time of the elastic putty, laying the cut alkali-resistant mesh cloth on the first layer of elastic putty, enabling the bent surface to face inwards, straightening and laying the cut alkali-resistant mesh cloth in the horizontal direction, smearing, spreading and fixing the alkali-resistant mesh cloth by using the edge of a spatula, and pressing the alkali-resistant mesh cloth into the bottom layer of elastic putty; then, the elastic putty of the surface layer is smeared and leveled from the middle to the upper and lower directions and the left and right directions, so that firm bonding and smooth surface of the gridding cloth are ensured, and the elastic putty is smeared uniformly; the lapping width of the alkali-resistant mesh cloth is not less than 100mm at the left and right, and not less than 80mm at the upper and lower parts; the alkali-resistant mesh fabric cannot be wrinkled, hollowly bulged and warped, and the overlapping of dry stubbles is strictly forbidden;
for a reinforced polyphenyl particle aerogel composite thermal insulation material-reflective thermal insulation coating energy-saving system, two layers of alkali-resistant mesh cloth are paved; the first layer should adopt butt joint, the second layer of grid cloth should be paved after the elastic putty is smeared, the second layer should adopt lap joint, and the dry lap joint is forbidden; the elastic putty between the two layers of grid cloth is full and is not pasted tightly;
after the alkali-resistant mesh cloth is paved with , elastic putty can be smeared for the second time after the alkali-resistant mesh cloth is qualified, and the alkali-resistant mesh cloth is coated in the elastic putty;
on a heat preservation system and a non-heat preservation interface part, the grid cloth on the large surface needs to be extended and lapped to the non-heat preservation part, and the lapping width is not less than 100mm;
embedding -resistant mesh cloth into the elastic putty along the concave part of the decorative seam;
s10, construction of the architectural reflective heat-insulation coating facing: constructing an elastic base coat firstly during construction of the reflective heat-insulating coating veneer of the building; the elastic base coat is applied after the anti-cracking protective layer is dried, and the elastic base coat is uniformly applied without missing coating; constructing two steps of the elastic base coat, wherein the second step is carried out after the first step is dried, and the interval time between the two steps is not less than 2 hours; after the elastic bottom coat is dried, when the reflective heat insulation construction of the building can be constructed by adopting spraying or roller coating, the coating is uniform in coating and firm in bonding, and cannot be leaked to coat or penetrate through the bottom.
The embodiments disclosed in the present invention are within the scope of the claims, and are the specific embodiments of the present invention, and the protection scope of the embodiments is only illustrative of the protection scope of the claims.
While certain exemplary embodiments of the invention have been described above by way of illustration only, it will be apparent to those skilled in the art that the described embodiments may be modified in various different ways without departing from the scope of the invention. Accordingly, the foregoing description is illustrative in nature and is not to be construed as limiting the scope of the invention as claimed.
Unless defined otherwise, all academic and scientific terms used herein have the same meaning as is understood by one of ordinary skill in the art to which this invention belongs.
In case of conflict, the present specification, including definitions, will control.
All percentages, parts, ratios, etc., are by weight unless otherwise indicated.
When a value or range of values, preferred range or list of lower preferable values and upper preferable values is given, it should be understood that it specifically discloses any range formed by any pair of values of any lower range limit or preferred value and any upper range limit or preferred value, regardless of whether ranges are separately disclosed. Where a range of numerical values is described herein, unless otherwise stated, the range is intended to include the endpoints of the range and all integers and fractions within the range.
When the term "about" or "approximately" is used to describe a numerical value or an end of a range, the disclosure should be interpreted to include the specific numerical value or end points referred to.
The use of "a" and "an" are merely for convenience and to give a general sense of the invention. Unless expressly stated otherwise, this description should be read to include one or at least one.
Claims (10)
1. Polyphenyl granule aerogel composite insulation material which characterized in that: the material composition is as follows by weight: 750-800 parts of cement, 75-80 parts of wollastonite powder, 45-55 parts of black diamond, 30-33 parts of rubber powder, 0.5-1.0 part of water reducing agent, 0.5-1.0 part of water increasing agent, 7.5-8.0 parts of cellulose, 2.0-2.5 parts of aerogel and 45-55 parts of particles.
2. The polyphenyl particle aerogel composite insulation material of claim 1, wherein: the polyphenyl particle aerogel composite thermal insulation material comprises the following materials in parts by weight: 780 parts of cement, 78 parts of wollastonite powder, 50 parts of black diamond, 31.4 parts of rubber powder, 0.8 part of water reducing agent, 0.6 part of water increasing agent, 7.8 parts of cellulose, 2.4 parts of aerogel and 50 parts of particles.
3. The polyphenyl particle aerogel composite insulation material of claim 1, wherein: the cement is emulsion powder portland cement.
4. The polyphenyl particle aerogel composite insulation material of claim 1, wherein: the particles comprise coarse-grain-size heat-preservation and heat-insulation aggregate and fine-grain-size heat-preservation and heat-insulation aggregate, and the material ratio of the coarse-grain-size heat-preservation and heat-insulation aggregate to the fine-grain-size heat-preservation and heat-insulation aggregate is 2-5:1.
5. The polyphenyl particle aerogel composite insulation material of claim 4, wherein: the particle size of the coarse-particle-size heat-preservation and heat-insulation aggregate is 3-5mm, and the particle size of the fine-particle-size heat-preservation and heat-insulation aggregate is smaller than 2mm.
6. The polyphenyl particle aerogel composite insulation material of claim 4, wherein: the coarse-grain-size heat-insulating aggregate is formed by one or more materials of polystyrene foam particles, expanded perlite and vitrified micro-beads, and the fine-grain-size heat-insulating aggregate is a fly ash hollow micro-bead material.
7. An energy saving system, characterized by: the heat-insulation wall comprises a wall body base layer, a polyphenyl particle aerogel composite heat-insulation material, an elastic putty layer and a reflective heat-insulation coating, wherein a waterproof layer is arranged on the outer side of the wall body base layer, and the polyphenyl particle aerogel composite heat-insulation material, the elastic putty layer and the reflective heat-insulation coating are sequentially arranged on the outer side of the waterproof layer.
8. The polyphenyl particle aerogel composite thermal insulation material as claimed in claim 1, wherein: and an anti-impact reinforcing piece is laid in the elastic putty layer, and the anti-impact reinforcing piece is alkali-resistant mesh cloth.
9. The polyphenyl particle aerogel composite insulation material of claim 1, wherein: the reflective heat insulation coating comprises an elastic primer coating, and reflective heat insulation coatings are sequentially coated on the elastic primer coating.
10. A construction method of an energy-saving system is characterized by comprising the following steps: the method comprises the following steps: s1, basic layer processing and acceptance: checking the basic layer processing and acceptance to check whether the basic layer meets the requirements of the design and construction scheme; the base layer should be solid and flat; for the wall surface of an old building, the surface treatment of the wall surface of the old building meets the design requirements; laying hot-galvanized electric welding nets at the connecting stubbles of the wall bodies made of different materials for reinforcement, wherein the lap joint width of the electric welding nets along each side of the connecting stubbles meets the relevant specification;
s2, hanging a vertical line and sleeving a square: hanging vertical reference lines on the corners, outer doors and windows, deformation joints and other necessary parts of the outer wall of the building, and popping out horizontal and vertical control lines on the wall surface;
s3, making a plaster and a reinforcement: the method is characterized in that a polyphenyl particle aerogel composite thermal insulation material is used as a standard-thickness gray mould, then a rib is punched, the thickness of the rib is based on the highest position of a wall, the thickness of the polyphenyl particle aerogel composite thermal insulation material is not less than the designed thickness, and special-purpose protective angles are suitable for verticality inspection, and the positive angles of a door, a window and a bottom wall are suitable for being arranged;
s4, construction interface mortar: the interface of the base layer is uniformly and fully coated with interface mortar in a spraying or rolling coating mode;
s5, preparing the polyphenyl particle aerogel composite thermal insulation material, wherein the polyphenyl particle aerogel composite thermal insulation material is prepared according to a construction scheme and a product specification, mechanical stirring is adopted during preparation, the stirred mortar is uniform, the viscosity is convenient to construct, and the polyphenyl particle aerogel composite thermal insulation material is used up within 1.5 h;
s6, the polyphenyl particle aerogel composite thermal insulation material is constructed after interface mortar is dried and cured, and is constructed in a layering manner, the construction thickness is not more than 15mm in each time, the construction is compacted and leveled, the time interval between two times of construction is not less than 24 hours, and finally the reinforcement punching thickness is achieved in the last time, and the reinforcement punching thickness is compacted and leveled by a scraping bar; the bonding between the heat-insulating layer and the base layer and between the heat-insulating layers must be firm, and delamination, hollowing and cracking are avoided;
s7, maintaining and checking the polyphenyl particle aerogel composite thermal insulation material: the protection of the heat-insulating layer should be done within 24 hours after construction, and the maintenance time is not less than 7 days; water flushing, impact and vibration are strictly prohibited; before the anti-cracking protective layer is constructed, the heat-insulating layer is checked and accepted; repairing the heat-insulating layer when hollowing, cracking, loose surface, verticality, flatness, squareness of internal and external corners, smoothness and straightness and the like of the heat-insulating layer do not meet the requirements of the regulation;
and (3) S8 elastic putty construction: the elastic putty is uniformly constructed on the heat insulation layer and is constructed for multiple times until the required thickness is reached, and the construction of the later putty layer is carried out after the former putty layer is dried; the scraping of the last elastic putty layer is smooth and clean, and after construction, the uneven part is polished by abrasive paper; for the reinforced polyphenyl particle aerogel composite thermal insulation material-reflective thermal insulation coating energy-saving system, the alkali-resistant mesh cloth needs to be embedded into the elastic putty layer, and the alkali-resistant mesh cloth is strictly forbidden to be directly paved on the surface of the thermal insulation layer and then coated with the elastic putty; the stirred elastic putty is used up within 1.5-4 h, and water can not be added for stirring and using when the elastic putty is used;
s9, construction of alkali-resistant mesh cloth: 1. paving an alkali-resistant mesh cloth, and paving the alkali-resistant mesh cloth in the heat-insulating layer when the thickness of the heat-insulating layer of the polyphenyl particle aerogel composite heat-insulating material exceeds 25 mm; when the adhesive is paved, firstly, the alkali-resistant mesh cloth at the entrance of a door or a window needs to be turned and edged; then, an alkali-resistant mesh cloth with the size of 300m multiplied by 400m is respectively arranged at certain corners of the door and window opening, and the paving direction is 45 degrees; after the above-mentioned working procedure is completed, the alkali-resisting grid cloth can be stuck on the large surface;
pasting large-area alkali-resistant mesh cloth: within the operable time of the elastic putty, laying the cut alkali-resistant mesh cloth on the first layer of elastic putty, enabling the bent surface to face inwards, straightening and laying the cut alkali-resistant mesh cloth in the horizontal direction, smearing, spreading and fixing the alkali-resistant mesh cloth by using the edge of a spatula, and pressing the alkali-resistant mesh cloth into the bottom layer of elastic putty; then, the elastic putty of the surface layer is smeared and leveled from the middle to the upper and lower directions and the left and right directions, so that firm bonding and smooth surface of the gridding cloth are ensured, and the elastic putty is smeared uniformly; the lapping width of the alkali-resistant mesh cloth is not less than 100mm at the left and right, and not less than 80mm at the upper and lower parts; the alkali-resistant mesh fabric cannot be wrinkled, hollowly bulged and warped, and the overlapping of dry stubbles is strictly forbidden;
for a reinforced polyphenyl particle aerogel composite thermal insulation material-reflective thermal insulation coating energy-saving system, two layers of alkali-resistant mesh cloth are paved; the first layer should adopt butt joint, the second layer of grid cloth should be paved after the elastic putty is smeared, the second layer should adopt lap joint, and the dry lap joint is forbidden; the elastic putty between the two layers of grid cloth is full and is not pasted tightly;
after the alkali-resistant mesh cloth is paved with , elastic putty can be smeared for the second time after the alkali-resistant mesh cloth is qualified, and the alkali-resistant mesh cloth is coated in the elastic putty;
on a heat preservation system and a non-heat preservation interface part, the grid cloth on the large surface needs to be extended and lapped to the non-heat preservation part, and the lapping width is not less than 100mm;
embedding -resistant mesh cloth into the elastic putty along the concave part of the decorative seam;
s10, construction of the architectural reflective heat-insulation coating facing: constructing an elastic base coat firstly during construction of the reflective heat-insulating coating veneer of the building; the elastic base coat is applied after the anti-cracking protective layer is dried, and the elastic base coat is uniformly applied without missing coating; constructing the elastic base coat twice, wherein the second process is carried out after the first process is dried, and the interval time between the two processes is not less than 2h; after the elastic bottom coat is dried, when the reflective heat insulation construction of the building can be constructed by adopting spraying or roller coating, the coating is uniform in coating and firm in bonding, and cannot be leaked to coat or penetrate through the bottom.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572845A (en) * | 2013-11-19 | 2014-02-12 | 安徽天锦云漆业有限公司 | Insulation mortar reflective insulation coating external wall insulation system and construction process thereof |
| CN111287347A (en) * | 2020-03-01 | 2020-06-16 | 中铁十八局集团有限公司 | External wall heat insulation construction method |
| CN115095095A (en) * | 2022-06-30 | 2022-09-23 | 安徽天锦云节能防水科技有限公司 | Inorganic material parcel polyphenyl granule aerogel composite heat preservation sound insulation system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572845A (en) * | 2013-11-19 | 2014-02-12 | 安徽天锦云漆业有限公司 | Insulation mortar reflective insulation coating external wall insulation system and construction process thereof |
| CN111287347A (en) * | 2020-03-01 | 2020-06-16 | 中铁十八局集团有限公司 | External wall heat insulation construction method |
| CN115095095A (en) * | 2022-06-30 | 2022-09-23 | 安徽天锦云节能防水科技有限公司 | Inorganic material parcel polyphenyl granule aerogel composite heat preservation sound insulation system |
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