An assembled super-microporous sound-absorbing decorative and heat-insulating integrated plate system and a construction method thereof

Abstract

The application relates to the technical field of building outer wall decoration and heat preservation, and discloses a fabricated super-microporous sound-absorbing decoration and heat preservation integrated plate system and a construction method, which comprises a structural layer, a plastering layer, bonding mortar, a buckle type combined fastener, a plastic expansion bolt and a fabricated integrated plate. The integrated plate comprises a super-microporous sound-absorbing bottom plate layer, a heat preservation material layer, an inorganic resin panel and a finishing coating layer. The back surface of the integrated plate is point-coated on the plastering layer through the bonding mortar, the hidden installation slot on the side edge is inserted into the fastener, the fastener is anchored to the structural layer through the expansion bolt, and a composite system of bonding and mechanical anchoring is formed. An exhaust plug with an opening facing downward is arranged in a divided gap. The construction method comprises the following steps: performing a drawing detection on the plastering layer, performing a line bouncing, adjusting the glue distribution area according to the building height, point-pasting the plate, inserting the slot, anchoring and performing secondary reinforcement on the fastener, performing flexible sealing and installing the exhaust plug. Through the super-microporous bottom plate, the hidden slot composite anchoring and the exhaust plug structure, the application realizes heat preservation and noise reduction, simultaneously realizes exhaust and anti-seepage and improves the wind pressure resistance.

Description

Technical Field

[0001] This invention relates to the field of building exterior wall decoration and insulation technology, specifically to a prefabricated microporous sound-absorbing decorative insulation integrated panel system and its construction method. Background Technology

[0002] Integrated exterior wall insulation panels are widely used in modern construction projects due to their advantages such as factory prefabrication, quick construction, and good energy-saving effects. Existing integrated insulation panels mainly focus on meeting the thermal performance and aesthetic requirements of buildings, and the panels are made of dense and hard inorganic materials or metal materials. With the increase in urban building density and the expansion of transportation networks, the problem of external environmental noise is becoming increasingly prominent. The dense surface of conventional integrated panels will reflect sound waves and cannot absorb or weaken external noise, making it difficult to meet the functional requirements of modern buildings for acoustic noise reduction.

[0003] In terms of system construction and installation technology, traditional integrated panel systems mostly adopt front-side drilling and anchoring or a single mortar bonding method. Front-side drilling destroys the physical integrity of the panel, providing a direct channel for external rainwater to penetrate into the insulation layer. When external rainwater or condensation caused by temperature difference enters the cavity on the back of the panel and the insulation layer, the water is difficult to drain naturally due to the lack of air venting and water guiding mechanisms in traditional systems. Affected by alternating changes in ambient temperature, the water accumulated in the cavity will vaporize and expand when heated, generating a slight positive pressure on the back of the panel. Under long-term action, this will cause freeze-thaw damage at the bonding mortar interface, leading to panel delamination or even detachment.

[0004] Meanwhile, existing systems lack targeted anti-leakage and stress-relieving structural designs at junctions such as external wall corners and window sills; when the wall is subjected to shear stress caused by thermal expansion and contraction, the sealant at conventional flat-joint joints may tear or come off from the gaps; especially in high-rise building applications with greater building height, the larger instantaneous wind pressure load places higher demands on the tensile strength and sealing performance of the wall system, and the stability and service life of the traditional structure are severely restricted under the combined effects of water vapor erosion and alternating wind pressure loads. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a prefabricated microporous sound-absorbing decorative and thermal insulation integrated panel system and construction method, which solves the problems of existing integrated exterior wall panels lacking sound absorption function and, due to traditional drilling and anchoring and the lack of exhaust node construction, causing water seepage, air accumulation, weak wind pressure resistance, and hollowing and falling off.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The first aspect of the present invention provides an assembled microporous sound-absorbing decorative and heat-insulating integrated panel system, comprising: a structural layer, a plaster layer, adhesive mortar, snap-fit ​​fasteners, plastic expansion bolts, and an assembled integrated panel;

[0008] The plaster layer is disposed on the outer side of the structural layer, and the prefabricated integrated panel is bonded and fixed to the side of the plaster layer away from the structural layer by the adhesive mortar applied in spots.

[0009] Hidden mounting slots are provided on the opposite sides of two adjacent prefabricated integrated panels, and the two adjacent prefabricated integrated panels are spliced ​​together to form a partition seam.

[0010] The snap-fit ​​fastener passes through the plaster layer and is anchored inside the structural layer by the plastic expansion bolt. The two sides of the snap-fit ​​fastener are respectively inserted into the hidden mounting slots on the sides of two adjacent prefabricated integrated panels to form a composite fixing system of adhesive and mechanical anchoring.

[0011] Furthermore, the prefabricated integrated panel is composed of four layers from the inside out, including: an ultra-microporous sound-absorbing base plate layer in contact with the bonding mortar, a thermal insulation material layer composited on the outer side of the ultra-microporous sound-absorbing base plate layer, an inorganic resin panel layer composited on the outer side of the thermal insulation material layer, and a decorative coating sprayed on the outermost side of the inorganic resin panel layer.

[0012] Furthermore, the above-mentioned prefabricated microporous sound-absorbing decorative heat-insulating integrated panel system also includes an exhaust plug. Holes are opened in the partition seams formed by splicing adjacent prefabricated integrated panels. The exhaust plug is embedded in the holes to connect the cavity on the back of the prefabricated integrated panel with the external atmosphere, and the exhaust hole opening of the exhaust plug is arranged downward.

[0013] Furthermore, at the external corner of the exterior wall, the insulation material layer on the inner side of the two assembled integrated panels is cut at a 40° to 50° angle, and the inorganic resin panel layer on the outer side of the two assembled integrated panels is cut at a 30° to 40° angle, so as to form a V-shaped glue injection groove that is wider on the outside and narrower on the inside at the joint at the external corner of the exterior wall.

[0014] At the exterior wall window sill, in conjunction with the steel subframe and window frame set at the window sill opening, the top surface of the prefabricated integrated panel forms a drainage slope of 3% to 5% with the inner side higher than the outer side, and the joint between the prefabricated integrated panel and the window frame is filled with polyurethane foam.

[0015] Furthermore, the aforementioned prefabricated microporous sound-absorbing decorative and thermal insulation integrated panel system also includes polystyrene foam strips and weather-resistant sealant;

[0016] The polystyrene foam strip is filled in the inside of the divided slot, and the filling height of the polystyrene foam strip is controlled to be 4mm to 6mm from the surface of the fabricated integrated plate;

[0017] The weather-resistant sealant is coated in the divided slot on the outside of the polystyrene foam strip, the weather-resistant sealant covers the surface width of the fabricated integrated plate by 1mm to 2mm, and the depth of the weather-resistant sealant is >5mm;

[0018] The weather-resistant sealant is used for sealing and leveling at the joint between the fabricated integrated plate and the decorative veneer or adjacent outer wall aluminum plate.

[0019] The second aspect of the present application provides a construction method of a fabricated ultra-microporous sound-absorbing decorative and heat-insulating integrated plate, which uses the fabricated ultra-microporous sound-absorbing decorative and heat-insulating integrated plate system, and comprises the following steps:

[0020] The plaster layer on the structural layer is leveled and subjected to pull-out detection;

[0021] The pop-up row plate reference control line is determined, and the width of the divided slot is determined;

[0022] The bonding mortar is prepared, and point-type glue distribution is performed on the back of the fabricated integrated plate;

[0023] The fabricated integrated plate is attached to the plaster layer, and is anchored and installed through the plastic expansion bolt and the buckle type combined fastener cooperating with the hidden installation slot;

[0024] The divided slot is flexibly sealed and the air plug is installed.

[0025] Further, the step of leveling and pull-out detection of the plaster layer on the structural layer comprises:

[0026] A square template of 150mm*150mm to 250mm*250mm is made on the plaster layer to perform the adhesion test of the fabricated integrated plate, and a pull-out instrument is used to detect after 14d to 28d, so as to confirm that the tensile strength of the fabricated ultra-microporous sound-absorbing decorative and heat-insulating integrated plate system reaches 0.10MPa to 0.20MPa and the failure surface occurs in the fabricated integrated plate, and then large-area construction is performed.

[0027] Further, the step of preparing the bonding mortar and performing point-type glue distribution on the back of the fabricated integrated plate comprises:

[0028] According to the point adhesion distribution diagram, the bonding mortar is point-coated on the back of the fabricated integrated plate, and the radius of the bonding point is controlled to be between 70mm to 90mm;

[0029] For the area where the building height is greater than 50m, the glue distribution amount parameter of the bonding mortar is adjusted upwards, so that the bonding area reaches 40% to 60% of the total area of the fabricated integrated plate.

[0030] Further, the step of rubbing and pasting the fabricated integrated plate on the plaster layer and anchoring and installing through the plastic expansion bolt and the buckle type combined fastener matched with the hidden installation slot includes:

[0031] Drilling a hole into the structure layer through the plaster layer, placing the plastic expansion bolt in the hole, inserting the two sides of the buckle type combined fastener into the hidden installation slot of the fabricated integrated plate, and tightening and fixing the buckle type combined fastener;

[0032] For the area where the building height is greater than 50m, after the installation of the buckle type combined fastener is completed, the buckle type combined fastener is secondarily bonded and reinforced using structural glue.

[0033] Further, the step of flexibly sealing the grid joint and installing the exhaust plug includes:

[0034] Stuffed polystyrene foam strips in the grid joint, the filling depth of the polystyrene foam strips is controlled to be 4mm to 6mm from the plate surface of the fabricated integrated plate, and weather-resistant sealant with a glue injection depth of >5mm is punched outside the grid joint;

[0035] After the operation of punching the weather-resistant sealant is completed for 24h to 48h, holes are drilled at a spacing of 5m to 8m at the cross intersection of adjacent grid joints, and exhaust plugs with exhaust hole openings downward are embedded.

[0036] The present application provides a fabricated ultramicro-pore sound-absorbing decorative heat-insulating integrated plate system and construction method.

[0037] 1、The present application composites the ultramicro-pore sound-absorbing bottom plate layer, the heat-insulating material layer and the inorganic resin panel layer into an integrated plate structure, absorbs external environmental noise through the ultramicro-pore structure of the bottom layer, reduces the reflection and penetration rate of sound waves in the building structure layer; at the same time, cooperates with the use of low thermal conductivity rock wool and other heat-insulating materials, realizes the structural integration of wall heat insulation, decoration and acoustic noise reduction function on the basis of meeting the A1 grade fireproofing requirement of building outer wall.

[0038] 2, The invention adopts the fixing mode of side hidden type installation slot combined with buckle type combined fastener, cooperates with the point coating of back adhesive mortar, and constitutes a composite stress system; the hidden structure avoids the rainwater infiltration hidden danger caused by mechanical punching on the front surface of the panel, and the combined fastener can limit the normal displacement of the integrated panel under wind pressure; cooperates with the steps of adjusting the glue area and structural glue secondary reinforcement in the construction method for high-rise buildings, improves the ability of the wall system to resist instantaneous wind pressure and resist pulling.

[0039] 3, The system node of the invention is provided with one-way exhaust and water guide structure, the downward exhaust plug embedded in the divided joint can prevent rainwater from flowing back while physically blocking, and can also exhaust the expanded water vapor in the cavity at the back of the integrated panel, reducing the risk of mortar freeze-thaw or panel hollowing caused by water vapor accumulation; cooperates with the V-shaped glue injection groove wedge anchoring of the outer wall external corner and the 5% slope of the window sill, accelerates the surface water drainage, and maintains the sealing durability of the outer wall joint. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a standard node graph of the invention for flat joint horizontal section;

[0041] Figure 2 It is a standard node graph of the invention for flat joint vertical section;

[0042] Figure 3 It is a window side horizontal section node graph of the invention;

[0043] Figure 4 It is a window upper opening and window sill vertical section node graph of the invention;

[0044] Figure 5 It is a horizontal section node graph of the invention for external corner;

[0045] Figure 6 It is a horizontal section node graph of the invention for internal corner;

[0046] Figure 7 It is a vertical section node graph of the invention for parapet wall;

[0047] Figure 8 It is an integrated panel and aluminum plate intersection horizontal section node graph of the invention;

[0048] Figure 9 It is a vertical section node graph of the invention for foot restraint.

[0049] Among them, 1, structure layer; 2, plaster layer; 3, adhesive mortar; 4, buckle type combined fastener; 5, plastic expansion bolt; 6, structural adhesive; 7, weather-resistant sealant; 8, foamed polyurethane; 9, steel attached frame; 10, window frame; 11, decorative veneer; 12, adjacent outer wall aluminum plate; 13, fabricated integrated panel. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example 1

[0052] See appendix Figure 1 To be continued Figure 9 This embodiment provides a prefabricated microporous sound-absorbing decorative and heat-insulating integrated panel system, including a structural layer 1, a plaster layer 2, an adhesive mortar 3, a snap-fit ​​combination fastener 4, plastic expansion bolts 5, and a prefabricated integrated panel 13.

[0053] The plaster layer 2 is set on the outer surface of the structural layer 1, providing a flat working surface for the prefabricated integrated panel 13. The prefabricated integrated panel 13 is fixed to the side of the plaster layer 2 away from the structural layer 1 by the spot-applied adhesive mortar 3. Hidden installation slots are opened on the opposite sides of two adjacent prefabricated integrated panels 13, and the two adjacent prefabricated integrated panels 13 are spliced ​​to form a partition seam. The snap-fit ​​combination fastener 4 penetrates the plaster layer 2 and is anchored to the inside of the structural layer 1 by the plastic expansion bolts 5. The two sides of the snap-fit ​​combination fastener 4 are respectively inserted into the hidden installation slots on the sides of the two adjacent prefabricated integrated panels 13, forming a composite fixing system in which the adhesive mortar 3 is spot-bonded and the snap-fit ​​combination fastener 4 is mechanically anchored and bears the force.

[0054] Furthermore, the prefabricated integrated panel 13 is a prefabricated four-layer composite structure; the prefabricated integrated panel 13 includes, from the inside out, an ultra-microporous sound-absorbing base plate layer in contact with the bonding mortar 3, a thermal insulation material layer, an inorganic resin panel layer, and an outermost decorative coating; wherein, the thermal insulation material layer is preferably a rock wool board with a thermal conductivity ≤0.048W / m·K to meet the overall A1 fire resistance requirement of the prefabricated ultra-microporous sound-absorbing decorative thermal insulation integrated panel system; under other working conditions, the thermal insulation material layer can also be XPS board, EPS board, PU board or PF board; the thickness of the inorganic resin panel layer is set between 7mm and 10mm; the decorative coating can be fluorocarbon paint or multi-colored stone paint; the prefabricated integrated panel 13 combines the external wall thermal insulation material layer with the ultra-microporous sound-absorbing base plate layer, and absorbs external environmental noise through the pore structure of the ultra-microporous sound-absorbing base plate layer, reducing the reflection and penetration rate of sound waves inside the structural layer 1.

[0055] In the mechanical fixing structure of the prefabricated microporous sound-absorbing decorative thermal insulation integrated panel system, the snap-fit ​​fastener 4 is made of aluminum alloy or galvanized steel plate and is fastened to the plastic expansion bolt 5 by stainless steel bolts. The hidden installation slot combined with the snap-fit ​​fastener 4 is used to avoid the mechanical drilling operation on the front of the inorganic resin panel layer in the traditional installation process. This hidden structure blocks the path of external rainwater to penetrate into the thermal insulation material layer through the pores of the snap-fit ​​fastener 4. At the same time, the snap-fit ​​fastener 4 can limit the normal displacement of the prefabricated integrated panel 13 under wind pressure and provide tensile strength for the prefabricated integrated panel 13.

[0056] See appendix Figure 5 As shown, at the external corner of the exterior wall, the insulation material layer on the inner side of the two assembled integrated panels 13 are processed with a 40° to 50° chamfer, and the inorganic resin panel layer on the outer side of the two assembled integrated panels 13 is processed with a 30° to 40° chamfer. After the two assembled integrated panels 13 are spliced, due to the difference in chamfer angle, a trapezoidal or V-shaped glue injection groove with a wider outer side and a narrower inner side is formed at the external corner joint. When the weather-resistant sealant 7 is injected, the weather-resistant sealant 7 forms a wedge-shaped anchor in the glue injection groove. When the assembled microporous sound-absorbing decorative insulation integrated panel system is subjected to shear stress generated by thermal expansion and contraction, the weather-resistant sealant 7 will not fall out from the joint, ensuring the sealing performance of the external corner of the exterior wall.

[0057] See appendix Figure 4 As shown, at the windowsill and the top of the window, in conjunction with the installation of polyurethane foam 8, steel subframe 9 and window frame 10, the top surface of the prefabricated integrated panel 13 slopes outward at a gradient of 3% to 5% at the windowsill plane position, so that the top surface of the prefabricated integrated panel 13 is higher on the inside and lower on the outside, ensuring that rainwater is discharged along the slope and avoiding water accumulation at the joint between the prefabricated integrated panel 13 and the window frame 10.

[0058] See appendix Figure 7 and attached Figure 8 At the joints between the prefabricated integrated panel 13 and other decorative single panels 11 or adjacent exterior wall aluminum panels 12, weather-resistant sealant 7 is used for sealing and leveling.

[0059] The joints are filled with polystyrene foam strips, with the filling depth controlled to be 4mm to 6mm from the surface of the prefabricated integrated panel 13. The joints are coated with weather-resistant sealant 7, which is required to cover the edge of the prefabricated integrated panel 13 by 1mm to 2mm and have a depth of >5mm. Holes are made at intervals in the joints where the weather-resistant sealant 7 is applied, and vent plugs are embedded therein. The vent holes of the vent plugs are arranged downwards. This structure uses the downward shielding effect to prevent external rainwater from drifting in backwards. At the same time, the vent plugs connect the cavity on the back of the prefabricated integrated panel 13 with the external atmosphere. When the moisture in the cavity on the back of the prefabricated integrated panel 13 evaporates and expands to generate a slight positive pressure, the water vapor is discharged through the vent holes, reducing the risk of freeze-thaw failure or delamination caused by the accumulation of moisture at the interface of the bonding mortar 3.

[0060] Example 2

[0061] This embodiment provides a construction method for the prefabricated microporous sound-absorbing decorative and thermal insulation integrated panel system of Embodiment 1; this construction method can be applied to working environments with a total building height of 50m to 100m, a seismic fortification intensity of 6 to 8 degrees, and an external wall base of reinforced concrete structure; the specific construction steps are as follows:

[0062] The flatness and verticality of the base wall plaster layer 2 are checked to ensure that the deviation is ≤5mm. After the plaster layer 2 has been cured for 14 to 28 days, the adhesion of the bonding mortar 3 is tested. Specifically, a square template of 150mm×150mm to 250mm×250mm is made on the plaster layer 2 for bonding test. After 14 to 28 days, a pull-out tester is used to ensure that the tensile strength reaches 0.10MPa to 0.20MPa and the fracture failure occurs inside the rock wool insulation layer, proving that the bonding force between the structural layer 1, the plaster layer 2 and the bonding mortar 3 meets the design requirements.

[0063] Establish benchmark control lines on the exterior wall using a theodolite and level; confirm the width of the partition joints and mark the installation points of the snap-fit ​​fasteners 4 on the surface of the plaster layer 2 to ensure that each prefabricated integrated panel 13 is subjected to balanced force.

[0064] Mix the adhesive powder and water at a mass ratio of 30:4 to 30:6 until homogeneous; apply the adhesive to the back of the prefabricated integrated panel 13 according to the spot bonding distribution diagram; control the radius of the bonding points to be between 70mm and 90mm; for construction conditions with a building height > 50m, increase the bonding area parameters so that the adhesive application area of ​​a single prefabricated integrated panel 13 reaches 40% to 60% of the total area of ​​the prefabricated integrated panel 13.

[0065] The prefabricated integrated panel 13 is kneaded and attached to the plaster layer 2; holes are drilled through the plaster layer 2 at predetermined positions, reaching a depth of 30mm to 50mm inside the structural layer 1; plastic expansion bolts 5 are installed, and the two sides of the snap-fit ​​combination fastener 4 are inserted into the hidden installation slots on the sides of the two adjacent prefabricated integrated panels 13, and the bolts are tightened for fixation; for construction conditions with a building height > 50m, after the snap-fit ​​combination fastener 4 is tightened, structural adhesive 6 is used to wrap the snap-fit ​​combination fastener 4 for secondary reinforcement to resist the instantaneous wind pressure load in the high-altitude area.

[0066] Clean the joints, fill them with polystyrene foam strips, leaving a 5mm to 8mm depth for caulking; apply masking tape along the joints, and apply weather-resistant sealant 7, ensuring that the sealant 7 covers the edge of the prefabricated integrated panel 13 by 1mm to 2mm, with a caulking depth of 5mm to 8mm; 24h to 48h after the caulking process is completed, drill holes at 5m to 8m intervals at the cross intersections of the joints and install vent plugs; ensure that the vent plug openings are strictly facing downwards, and seal the vent plugs with weather-resistant sealant 7 around them.

[0067] The prefabricated microporous sound-absorbing decorative and thermal insulation integrated panel system and construction method provided by this invention introduces the microporous sound-absorbing base plate layer into the four-layer composite structure of the exterior wall, adding acoustic noise reduction function while maintaining fireproof and thermal insulation performance. At the structural fixing level, point-type adhesive application and side-concealed installation slot interlocking fasteners form a non-porous composite force-bearing system, and provide step bonding area requirements and secondary reinforcement methods of structural adhesive according to building height standards to improve wind pressure resistance and seismic performance. At the waterproof and durability level, the coordinated work of node structures such as the V-shaped adhesive injection groove at the external corner, the window sill slope structure, and the bottom-mounted vent plug prevents rainwater infiltration and keeps the back cavity dry. With standardized construction procedures and pre-inspection, the quality uncertainty of on-site wet work is reduced, and the service life of the exterior wall system is extended.

[0068] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these specific embodiments are merely illustrative. Those skilled in the art can omit, substitute, and modify the details of the above methods and systems in various ways without departing from the principles and essence of the present invention. For example, combining the above method steps to perform substantially the same function and achieve substantially the same result using substantially the same method falls within the scope of the present invention.

Claims

1. A prefabricated microporous sound-absorbing, decorative, and heat-insulating integrated panel system, characterized in that, include: Structural layer (1), plaster layer (2), bonding mortar (3), snap-fit ​​fasteners (4), plastic expansion bolts (5) and prefabricated integrated panel (13); The plaster layer (2) is disposed on the outer side of the structural layer (1), and the prefabricated integrated panel (13) is fixed to the side of the plaster layer (2) away from the structural layer (1) by the adhesive mortar (3) applied in spots; Hidden mounting slots are provided on the opposite sides of two adjacent prefabricated integrated panels (13), and the two adjacent prefabricated integrated panels (13) are spliced ​​together to form a partition seam. The snap-fit ​​fastener (4) passes through the plaster layer (2) and is anchored inside the structural layer (1) by the plastic expansion bolt (5). The two sides of the snap-fit ​​fastener (4) are respectively inserted into the hidden mounting slots on the sides of the two adjacent prefabricated integrated panels (13) to form a composite fixing system of adhesive and mechanical anchoring.

2. The prefabricated microporous sound-absorbing, decorative, and heat-insulating integrated panel system according to claim 1, characterized in that, The assembled integrated panel (13) is composed of four layers from the inside out, including: The ultra-microporous sound-absorbing substrate layer in contact with the bonding mortar (3), the thermal insulation material layer composited on the outer side of the ultra-microporous sound-absorbing substrate layer, the inorganic resin panel layer composited on the outer side of the thermal insulation material layer, and the decorative coating sprayed on the outermost side of the inorganic resin panel layer.

3. The prefabricated microporous sound-absorbing, decorative, and heat-insulating integrated panel system according to claim 2, characterized in that, It also includes an exhaust plug, and a hole is provided in the partition seam formed by splicing adjacent prefabricated integrated panels (13). The exhaust plug is embedded in the hole to connect the cavity on the back of the prefabricated integrated panel (13) with the outside atmosphere, and the exhaust hole of the exhaust plug is arranged facing downward.

4. The assembled microporous sound-absorbing, decorative, and thermal insulation integrated panel system according to claim 2, characterized in that, At the external corner of the wall, the insulation material layer on the inner side of the two assembled integrated panels (13) that are spliced ​​together is cut at a 40° to 50° angle, and the inorganic resin panel layer on the outer side of the two assembled integrated panels (13) is cut at a 30° to 40° angle, so as to form a V-shaped glue injection groove with a wider outer side and a narrower inner side at the splice at the external corner of the wall. At the exterior wall window sill, the steel subframe (9) and window frame (10) set at the window sill opening are combined, and the top surface of the prefabricated integrated panel (13) forms a drainage slope with the inner side higher than the outer side and the slope of 3% to 5%, and the joint between the prefabricated integrated panel (13) and the window frame (10) is filled with polyurethane foam (8).

5. The prefabricated microporous sound-absorbing, decorative, and heat-insulating integrated panel system according to claim 1, characterized in that, It also includes polystyrene foam strips and weather-resistant sealant (7); The polystyrene foam strip is filled inside the dividing seam, and the filling height of the polystyrene foam strip is controlled to be 4mm to 6mm away from the surface of the assembled integrated panel (13); The weather-resistant sealant (7) is applied to the dividing seam on the outside of the polystyrene foam strip. The width of the weather-resistant sealant (7) covering the prefabricated integrated panel (13) is 1 mm to 2 mm, and the application depth of the weather-resistant sealant (7) is >5 mm. At the junction of the prefabricated integrated panel (13) and the decorative single panel (11) or the adjacent exterior wall aluminum panel (12), the weather-resistant sealant (7) is used for sealing and leveling.

6. A construction method for a prefabricated microporous sound-absorbing, decorative, and thermal insulation integrated panel, using the prefabricated microporous sound-absorbing, decorative, and thermal insulation integrated panel system according to any one of claims 1-5, characterized in that, Includes the following steps: The plaster layer (2) on the structural layer (1) is subjected to leveling and pull-out tests; Pop up the layout baseline control line and determine the width of the dividing seam; Prepare the bonding mortar (3) and apply it in dots on the back of the assembled integrated panel (13); The prefabricated integrated panel (13) is kneaded onto the surface of the plaster layer (2) and anchored using the plastic expansion bolts (5) and the snap-fit ​​fasteners (4) in conjunction with the concealed installation slots. The dividing seams are flexibly sealed and vent plugs are installed.

7. The construction method of the prefabricated microporous sound-absorbing decorative and thermal insulation integrated panel according to claim 6, characterized in that, The steps for leveling and pull-out testing of the plaster layer (2) on the structural layer (1) include: A square template of 150mm×150mm to 250mm×250mm is made on the plaster layer (2) for bonding test of the prefabricated integrated panel (13). After 14 to 28 days, a pull-out tester is used to check and confirm that the tensile strength of the prefabricated microporous sound-absorbing decorative heat-insulating integrated panel system reaches 0.10MPa to 0.20MPa and the failure surface occurs inside the prefabricated integrated panel (13). Then, large-area construction is carried out.

8. The construction method of the prefabricated microporous sound-absorbing decorative and heat-insulating integrated panel according to claim 6, characterized in that, The steps of preparing the bonding mortar (3) and applying it in dots on the back of the assembled integrated panel (13) include: According to the spot bonding distribution diagram, the bonding mortar (3) is applied to the back of the prefabricated integrated panel (13) in spots, and the radius of the bonding points is controlled between 70mm and 90mm. For areas with building height > 50m, the adhesive application parameters of the bonding mortar (3) are increased so that the bonding area reaches 40% to 60% of the total area of ​​the prefabricated integrated panel (13).

9. The construction method of the prefabricated microporous sound-absorbing decorative and heat-insulating integrated panel according to claim 6, characterized in that, The steps of attaching the prefabricated integrated panel (13) to the surface of the plaster layer (2) and anchoring it using the plastic expansion bolts (5) and the snap-fit ​​fasteners (4) in conjunction with the concealed mounting slot include: Drill a hole through the plaster layer (2) to enter the structural layer (1), place the plastic expansion bolt (5) in the hole, insert both sides of the snap-fit ​​fastener (4) into the hidden mounting slot of the assembled integrated plate (13), and tighten the snap-fit ​​fastener (4). For areas where the building height is >50m, after the snap-fit ​​fastener (4) is installed, structural adhesive (6) is used to perform secondary bonding and reinforcement on the snap-fit ​​fastener (4).

10. The construction method of the prefabricated microporous sound-absorbing decorative and heat-insulating integrated panel according to claim 6, characterized in that, The steps of flexibly sealing the partition joint and installing the vent plug include: Polystyrene foam strips are filled inside the partition joints, and the filling depth of the polystyrene foam strips is controlled to be 4mm to 6mm away from the surface of the prefabricated integrated panel (13). Weather-resistant sealant (7) with a glue depth of >5mm is applied to the outside of the partition joints. 24 to 48 hours after the weather-resistant sealant (7) is applied, drill holes at intervals of 5 to 8 meters at the cross intersections of adjacent partition seams and insert vent plugs with the vent opening facing downwards.

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