CN116905670A - Outer wall heat insulation layer structure layer and construction method - Google Patents

Abstract

The application relates to the field of building structures, and provides an outer wall heat-insulating layer structure, which comprises a base layer, an interface layer, a leveling layer, a bonding layer, a heat-insulating layer, a plastering layer and anchoring pieces, wherein the base layer is arranged on the base layer; the wall surface of the base layer is coated with the interface layer; paving the leveling layer on the interface layer; the heat insulation layer is arranged on the surface of the leveling layer through the bonding layer; paving the plastering layer on the heat preservation layer, and trowelling the surface of the heat preservation layer; and the anchoring parts penetrate through the plastering layer, the heat insulation layer, the bonding layer, the leveling layer and the interface layer and are spliced on the base layer wall surface. The application has the effect of improving the stability of the outer wall heat insulation layer structure. In addition, a construction method is also provided.

Description

Exterior wall insulation layer structural layer and construction method

Technical field

This application relates to the field of building structures, and in particular to an exterior wall insulation layer structure and a construction method.

Background technique

Exterior wall insulation is composed of insulation materials and serves as a structural layer in the exterior insulation system.

Traditional exterior wall insulation adopts the form of insulation layer + waterproof layer. The insulation layer generally uses insulation board. The insulation board is usually connected to the exterior wall or base wall through adhesive bonding and fixation. When this method is used, the insulation board The connection strength to the exterior wall is required to be high to prevent the insulation board from falling off and falling.

Contents of the invention

In order to improve the above problems, this application provides an exterior wall insulation layer structure and construction method that improves stability.

The external wall insulation layer structure and construction method provided by this application adopt the following technical solutions:

An exterior wall insulation layer structure, including a base layer, an interface layer, a leveling layer, a bonding layer, an insulation layer, a plaster layer and anchors; the base wall is painted with the interface layer; and is laid on the interface layer The leveling layer; an adhesive layer is applied on the leveling layer, and the insulation layer is installed on the surface of the leveling layer through the adhesive layer; the plastering layer is laid on the insulation layer, and the insulation layer is The surface is smoothed; several of the anchors penetrate the plastering layer, the insulation layer, the bonding layer, the leveling layer, and the interface layer, and are plugged into the base wall surface.

By adopting the above technical solution, sufficient and stable bonding force is provided through the interface layer, so that other hierarchical structures can be stably installed on the base wall. The leveling layer provides smooth installation at the insulation layer, and the insulation layer is bonded to the leveling layer through the adhesive layer. On the surface of the layer, the plastering layer is used to smooth the locations with different thicknesses between the insulation layers, and then the plastering layer, insulation layer, bonding layer, leveling layer, interface layer and base wall are connected in series through anchors to improve stability. to prevent the insulation layer from falling due to stress or bad weather.

Optionally, the plastering layer includes plastering mortar and mesh; after the anchors penetrate the mesh and are anchored to the base wall, the plastering mortar is laid.

By adopting the above technical solution, the mesh cloth covers the foam cement board to make the surface of the foam cement board smooth, and then the mesh cloth, foam cement board, bonding layer, leveling layer and interface layer are anchored to the base wall by anchors. The mesh provides strong tensile strength and alkali resistance, improves the strength of the wall and wall surface, and can withstand severe weather and prevent wall cracking.

Optionally, fasteners are provided between the insulation layer and the base layer.

By adopting the above technical solution, the fastening nails can provide additional stability to the insulation layer and further reduce the falling of the insulation layer.

Optionally, the insulation layer is provided with a slot for insertion of the fastener, and the filling slot is provided to extend into the slot.

By adopting the above technical solution, the bonding material of the bonding layer is poured into the slot through the filling groove. After filling with the bonding material, it waits for solidification, so that the fastener is firmly installed in the insulation layer, further providing the stability of the fastening nail. .

Optionally, the insulation layer is provided with bent corners on one side facing the adhesive layer, so that there is a gap between the insulation layer and the adhesive layer, and the gap is filled with the adhesive layer material. cavity.

By adopting the above technical solution, by setting bent corners and using the bonding mortar of the bonding layer, the bonding area is increased, making the insulation layer more stable. When the side of the insulation layer away from the base wall is stressed, it bends The folds are pressed against the solidified bonding mortar to slow down the stress on the insulation layer and prevent it from falling off.

Optionally, the inner wall surface of the partition cavity is provided with anti-slip patterns.

By adopting the above technical solution, the anti-skid pattern increases the bonding area, forming a stronger bonding effect between the inner wall surface of the insulation layer and the bonding layer.

Optionally, the texture of the anti-skid pattern is inclined toward the direction of the adhesive layer with the upright state of the insulation layer as the reference plane.

By adopting the above technical solution, through the anti-skid pattern in the tilted state, the anti-skid pattern can be stuck under the solidified adhesive layer to provide a clamping effect and make the installation of the insulation layer more stable.

Optionally, one end of the partition cavity is provided with a bottom seal, and the bottom seal is provided with bent corners.

By adopting the above technical solution, after the insulation layer is closely attached to the leveling layer through the adhesive layer, the adhesive material is injected from the opening direction of one end of the partition cavity, and the bottom seal of the other end blocks the adhesive material so that the adhesive material will not leak out until The spacer cavity is filled, and the bonding mortar can be sealed in the spacer cavity by opening one end, and the insulation layer can be fully bonded to the leveling layer through the adhesive material. The back cover is provided with bent corners to provide partial clamping. function to reduce the detachment of the insulation layer.

Optionally, the insulation layer is further provided with a tamping part, the tamping part is slidingly connected to the insulation layer and is located in the partition cavity.

By adopting the above technical solution, the tamping part is extended into the partition cavity opening at the top of the insulation layer, and the tamping bonding material is moved up and down along the inner wall of the partition cavity, so that the bonding material located in the partition cavity fully fits the insulation layer and the leveling layer. , to stabilize the connection between the two.

A construction method, by which the exterior wall insulation layer structure is constructed and formed, including the following steps: material pretreatment: the materials of the insulation layer are premixed and formed, and the materials of the leveling layer are premixed and formed into a mixture;

Base treatment: clean the base wall;

Among them, the wall holes need to be repaired and smoothed;

Interface layer application: apply a layer of the interface layer evenly on the treated base wall surface;

Among them, walls with a water absorption rate higher than the standard water absorption rate require pre-wet treatment;

Laying of leveling layer: After the interface layer is solidified, waterproof mortar is applied to the surface of the interface agent and the entire wall is filled;

Applying the adhesive layer: the material of the adhesive layer and the stirring mixture are applied to the opposite surfaces of the leveling layer and the insulation layer;

Installation of the insulation layer: The insulation layer is coated with bonding mortar and pasted using the full paste method;

Laying of the plaster layer: After the bonding layer and the insulation layer are solidified, the plaster layer is laid on the insulation layer;

Anchor installation: Determine the installation point of the anchor, penetrate the plaster layer, insulation layer, bonding layer, leveling layer, section layer, and insert into the base layer;

Finishing layer treatment: Set a finishing layer on the surface of the plastering layer and cover the anchor;

Wherein, an anti-cracking layer is laid between the plaster layer and the facing layer.

By adopting the above technical solutions, the stable implementation of the exterior wall insulation layer structure can be achieved through construction methods.

To sum up, this application includes at least one of the following beneficial technical effects:

1. The interface layer provides sufficient and stable bonding force to enable other hierarchical structures to be stably installed on the base wall. The leveling layer provides smooth installation at the insulation layer. The insulation layer is bonded to the surface of the leveling layer through the adhesive layer. After the plaster layer smoothes the positions with different thicknesses between the insulation layers, the plaster layer, insulation layer, bonding layer, leveling layer, interface layer and base wall are connected in series through anchors to improve the stability and avoid thermal insulation. The layers may fall due to force or bad weather;

2. The fastening nails can provide extra stability to the insulation layer and further reduce the falling of the insulation layer;

3. The bonding material of the bonding layer is poured into the slot through the filling groove. After filling with the bonding material, wait for solidification to ensure that the fasteners are firmly installed in the insulation layer and further provide the stability of the fastening nails;

4. By setting bent corners and using the bonding mortar of the bonding layer, the bonding area is increased and the insulation layer is more stable. When the side of the insulation layer away from the base wall is stressed, it will solidify through the bends. The final bonding mortar is pressed tightly to slow down the stress on the insulation layer and prevent the insulation layer from falling off.

Description of the drawings

Figure 1 is a schematic diagram of the hierarchical structure of the exterior wall insulation layer structure in one embodiment of the present application;

Figure 2 is a schematic three-dimensional structural diagram of the insulation layer and the plastering layer in an embodiment of the present application;

Figure 3 is a schematic cross-sectional structural diagram of the insulation layer in another embodiment of the present application;

Figure 4 is a schematic top structural view of the insulation layer in another embodiment of the present application;

Figure 5 is a schematic three-dimensional structural diagram of the insulation layer and the tamping part in another embodiment of the present application;

Figure 6 is a schematic flow diagram of a construction method in yet another embodiment of the present application;

The marks in the drawings are: 1. Base layer, 2. Interface layer, 3. Leveling layer, 4. Adhesive layer, 5. Insulation layer, 51. Slot, 52. Filling slot, 53. Spacer cavity, 54. Anti-slip Texture, 55. Compacting part, 6. Plastering layer, 61. Plastering mortar, 62. Mesh cloth, 7. Anchors, 8. Facing layer, 9. Fasteners.

Detailed ways

The following describes the implementation of the present application through specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied in different specific embodiments. Various details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings, so that those skilled in the technical field to which this application belongs can easily implement them. The present application can be embodied in many different forms and is not limited to the embodiments described here.

In this specification, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like is intended to be in conjunction with a specific feature of the embodiment or example representation. , structures, materials or features are included in at least one embodiment or example of the present application. Furthermore, the specific features, structures, materials, or characteristics shown may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples represented in this application and the features of the different embodiments or examples unless they are inconsistent with each other.

In addition, the terms "first" and "second" are only used to express objectives and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the expressions in this application, "plurality" means two or more than two, unless otherwise expressly and specifically limited.

Throughout this specification, when one device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. In addition, when a certain device "includes" a certain component, it does not exclude other components, but means that other components may also be included unless otherwise specified.

The present application will be further described in detail below in conjunction with Figures 1 to 6.

The embodiment of the present application discloses an exterior wall insulation layer structure and a construction method.

An exterior wall insulation layer structure. In one embodiment, with reference to Figure 1, the exterior wall insulation layer structure is to lay or apply several layers of insulation structure on the building wall to ensure the temperature stability in the building. The exterior wall insulation layer structure It includes base layer 1, interface layer 2, leveling layer 3, bonding layer 4, insulation layer 5, plaster layer 6, facing layer 8 and anchors 7; base layer 1 is made of concrete walls and various masonry walls. When other insulation structural layers need to be laid on the base wall 1, the base 1 wall needs to be smoothed and cleaned to ensure that subsequent insulation structural layers can be laid or applied to the base 1 wall to ensure the stability of the laying or application.

Apply interface layer 2 on the wall of base layer 1. Interface layer 2 can use interface agent, also known as interface modifier. Interface agent is a new type of adhesive material that can increase the adhesion of cement and mortar to the wall. The interface agent has two-way penetrating bonding, producing a radioactive chain anchoring effect to firmly bond the wall surface of the base layer 1 with other structural layers. The interface agent forms the interface layer 2 after solidification.

After the interface layer 2 is bonded to the wall surface of the base layer 1, a leveling layer 3 is laid on the bonded interface layer 2. The leveling layer 3 can be made of cement mortar that can provide waterproofing after solidification, and is used to repair potholes or slope problems on the wall. Fill and smooth, lay cement mortar on the surface of interface layer 2, and form leveling layer 3 after the cement mortar solidifies.

After the leveling layer 3 is solidified, an adhesive layer 4 needs to be laid on the leveling layer 3. The function of the adhesive layer 4 is to bond the insulation layer 5 to the surface of the leveling layer 3. The adhesive layer 4 can be laid using a mixture of adhesive mortar. After the insulation layer 5 is installed on the surface of the leveling layer 3 through the bonding layer 4, the insulation layer 5 can provide insulation and heat insulation for the building or house. The insulation layer 5 is made of many materials, such as inorganic mortar, rock wool, and glass. Cotton, mineral wool, foamed cement, polystyrene board, extruded board, polyurethane composite board, phenolic board, etc. This embodiment uses a foamed cement board that is solidified after foaming cement as an example. The foamed cement board uses a quadrilateral board. shaped structure, such as rectangular or square, with flat corners to facilitate the docking between the two boards. The foam cement board is bonded to the surface of the leveling layer 3 through bonding mortar to complete the installation. The laid foam cement board The quantity is not fixed and needs to be determined based on the area of the base layer 1 wall and the size of the foam cement board.

Referring to Figure 2, after the bonding layer 4 is solidified, the foam cement board is fastened to the surface of the leveling layer 3, and then a plaster layer 6 is applied on the surface of the foam cement board away from the bonding layer 4. There will be a thickness difference between the foam cement boards, or the thickness of the adhesive layer 4 is different, so that the foam cement boards cannot be completely on the same level. Therefore, the connection points between the foam cement boards are connected through the plaster layer 6. And the surface of each foamed cement board is smoothed. The plastering layer 6 can be constructed using plastering mortar 61, which also includes mesh cloth 62 or mesh cloth 62. Mesh cloth 62 can provide strong tensile strength and alkali resistance. Improve the strength of walls and walls, resist severe weather, and prevent wall cracks.

Several anchors 7 are provided, and each foam cement board is provided with several anchors 7. In this embodiment, four anchors 7 are provided for each foam cement board, which are respectively installed at the four corners of the foam cement board. 7. Knock-type nylon expansion nails with discs can be used. The diameter of the disc can be 50mm. They are called anchor nails below. Specifically, use an electric drill to drill holes at the corner joints of the foam cement board. When installing the anchor nails, use Rotate drilling with a percussion drill with low impact force but high frequency. Use penetration installation. The hole diameter of the insulation board is the same as the hole diameter of the base layer 1. Screw the anchor nail into the drill hole. The anchor nail penetrates the plaster layer 6, the insulation layer 5, and the bonding layer. After layer 4, leveling layer 3 and interface layer 2, they are nailed into the wall of base layer 1, so that plaster layer 6, insulation layer 5, bonding layer 4, leveling layer 3, interface layer 2 and base layer are connected through anchors 7 1. The walls are connected in series to improve the stability and prevent the insulation layer 5 from falling due to stress or bad weather.

Referring to Figure 1, the surface of the surface layer is coated with a facing layer 8. The facing layer 8 can be made of flexible water-resistant putty, ceramic tiles, etc., used to decorate the exterior wall. This embodiment uses flexible water-resistant putty as an example. It needs to be applied first. Surface layer 6 is laid with decorative mortar and then covered with flexible water-resistant putty.

The interface layer 2 provides sufficient and stable bonding force to enable other hierarchical structures to be stably installed on the wall of the base layer 1. The leveling layer 3 provides a smooth installation at the insulation layer 5. The insulation layer 5 is bonded to the leveling surface through the adhesive layer 4. On the surface of layer 3, after smoothing the locations with different thicknesses between the insulation layers 5 using the plastering layer 6, the plastering layer 6, the insulation layer 5, the bonding layer 4, the leveling layer 3, and the interface layer are all smoothed through the anchors 7. 2 is connected in series with the base layer 1 wall to improve the stability and prevent the insulation layer 5 from falling due to stress or bad weather.

In another embodiment, as shown in FIG. 3 , a fastener 9 is provided between the insulation layer 5 and the base layer 1 . The fastener 9 is the same as the anchor 7 and can be made of percussion nylon with a disc. Expansion nails, hereafter referred to as fastening nails, the length of the fastening nails is smaller than the anchor nails, or the fastening nails are inserted deeper into the wall surface of the base layer 1, so the fasteners 9 do not penetrate the insulation layer 5, but are located within the insulation layer 5. After the fixing nails are applied on the adhesive layer 4, they can be driven into the wall surface of the base layer 1 through an electric drill, and then installed into the insulation layer 5.

A slot 51 is provided in the insulation layer 5, and the fastening nails can be located in the through holes or slots 51. The slots 51 can be filled with bonding mortar to form the bonding layer 4 in advance, and then the insulation layer 5 is covered with the adhesive layer. On the bonding layer 4, and the fastening nails are located in the slots 51. After the bonding mortar is solidified, the fastening nails can be firmly located in the insulation layer 5, thereby providing the fastening nails with a further stabilizing effect and reducing the falling of the insulation layer 5. Case.

Among them, the insulation layer 5 also has a filling groove 52, and the filling groove 52 extends into the slot 51, that is, a filling groove 52 extending into the slot 51 is provided on the foam cement board. The foam cement board is composed of the adhesive layer 4 After bonding to the leveling layer 3, pour the bonding mortar into the slot 51 through the filling groove 52. Additional tools such as a feed hopper can be used to expand the feed port to facilitate the pouring of the bonding mortar. After the filling is completed, pass The filling groove 52 is filled with the bonding mortar. By providing the filling groove 52, it is easier to fill the slot 51 and avoid gaps in the slot 51.

In some embodiments, as shown in Figures 3 and 4, the insulation layer 5 is provided with bent corners on one side facing the adhesive layer 4, so that there is a space cavity 53 between the insulation layer 5 and the adhesive layer 4, and the adhesive layer The spacer cavity 53 filled with 4 materials has bent corners and is used with the bonding mortar of the bonding layer 4 to increase the bonding area and make the insulation layer 5 more stable. The side of the insulation layer 5 away from the wall surface of the base layer 1 is on When being stressed, the bending part is pressed against the solidified bonding mortar, thereby slowing down the stress on the insulation layer 5 and preventing the insulation layer 5 from falling off.

Among them, the inner wall surface of the bend in the insulation layer 5 is provided with anti-skid patterns 54. The texture of the anti-skid patterns 54 can be provided with cross patterns, wavy patterns, or polka dot patterns. In this embodiment, horizontal patterns are used, and the patterns are directed toward the adhesive layer 4 The direction is tilted, that is, when the insulation layer 5 is upright, it is the base plane, taking the initial point of the texture as the starting point, tilting towards the third quadrant direction close to the wall surface of the base layer 1. The tilt angle can be 200° to 240°. In the tilted state The anti-skid pattern 54 can form a stronger bonding effect between the inner wall surface of the insulation layer 5 and the adhesive layer 4, which not only increases the bonding area, but also enables the anti-skid pattern 54 to be stuck in the inclined state through the anti-skid pattern 54. The solidified adhesive layer 4 is provided to provide a clamping effect and make the installation of the insulation layer 5 more stable.

Among them, one end of the partition cavity 53 is provided with a back seal, and the back cover is provided with a bent corner. The back seal is a form in which the partition cavity 53 is provided at the upper and lower ends, with one end open. When the bonding mortar needs to be poured in, the insulation After layer 5 is tightly attached to leveling layer 3 through bonding layer 4, it is only necessary to pour in bonding mortar from the opening direction of one end, and block the bonding mortar from the other end so that the bonding mortar will not leak out until the spacer cavity 53 is filled. With one end open, the bonding mortar can be sealed in the spacing cavity 53 and the insulation layer 5 can be fully bonded to the leveling layer 3 through the bonding mortar.

When the bent corners are set at the back cover, it can ensure that the bonding area between the bottom of the insulation layer 5 and the outer bonding layer 4 is sufficient, making the bonding state stable. At the same time, when the bonding mortar is poured into the bonding mortar, the bonding mortar and the insulation layer 5 can be improved. The contact area provides a partial clamping effect after the bonding mortar is solidified to reduce the detachment of the insulation layer 5.

In some embodiments, as shown in FIG. 5 , a tamping part 55 is provided in the insulation layer 5 . The tamping part 55 is slidingly connected to the insulation layer 5 and is located in the spacing cavity 53 . The tamping part 55 may be a sliding block and a pushing rod. The combination can be to provide a threaded hole on the surface of the sliding block, an external thread on the outer wall of the pushing rod, the sliding block and the pushing rod are screwed, and a sliding groove is opened in the spacing cavity 53 of the insulation layer 5, and the sliding block can slide through The groove slides in the spacer cavity 53, or if there is no sliding groove, the sliding block can also slide along the inner wall of the spacer cavity 53, or if a slot 51 is provided, the sliding block and the sliding block can be pushed along the slot 51. The rod is inserted into the spacer cavity 53. The specific sliding method is not limited here, and the pushing rod can provide a driving force to make the sliding block move back and forth along the sliding groove.

When the bonding mortar is poured into the spacer cavity 53, even if it is filled, there will still be gaps. In order to avoid insufficient stability between the bonding mortar and the insulation layer 5, the sliding block is removed from the spacer cavity 53 on the top of the insulation layer 5. The opening is extended into it, and the push rod is tamped up and down, so that the bonding mortar located in the interval cavity 53 fully fits the insulation layer 5 and the leveling layer 3, making the connection between the two more stable. After the tamping is completed, the push rod can be rotated The sliding block can be directly left in the spacer cavity 53, or the sliding block can be taken out directly. If the sliding block is taken out, additional bonding mortar needs to be added to fill the vacancy of the sliding block.

A construction method. In another embodiment, with reference to the flow chart shown in 6, the exterior wall insulation layer structure of the above embodiment is formed through this construction method, including the following steps:

S1. Material pretreatment: The insulation layer 5 uses foamed cement board. The foamed cement board needs to be mixed in advance and placed in the mold, waiting for solidification to form. At the same time, the waterproof mortar also needs to be pre-mixed into a mixture for use.

S2. Treatment of base layer 1: The wall surface of base layer 1 needs to be smooth, clean, and dry, and there must be no quality problems such as floating dust, slurry leakage, oil stains, hollows, etc. The protrusions on the outer surface of the wall need to be removed if they are larger than 10mm, and hollows, Cracked parts need to be removed, wall holes and wall defects should be cleaned and smoothed with corresponding materials. Wall bolt holes need to be waterproofed with an additional layer. After the wall construction holes are watered and moistened, they must be repaired and built tightly.

S3. Application of interface layer 2: The treated wall base layer 1 needs to be evenly coated with a thin layer of interface agent. When encountering a masonry wall with a relatively large water absorption rate, the wall must be wetted first for pre-wet treatment, and then dried in the shade. Spray interface agent.

S4. Laying of leveling layer 3: After the interface agent is solidified, apply the prefabricated waterproof mortar to the surface of the interface agent and fill the entire wall.

S5. Apply the bonding layer 4: bond the mortar and stir the mixture. Add water in a proportion of 20-25% of the weight of the material (the amount of water added can be adjusted according to the base layer 1 and the climate conditions) until the mixture is evenly mixed. It needs to be used up within 2 hours. The dosage of bonded cement foam board is 4-5 kilograms per square meter. Then apply the bonding mixture to the opposite surface of leveling layer 3 and insulation layer 5. Please refer to the following chart for the bonding strength:

S6. Installation of insulation layer 5: The foamed cement board and the base layer 1 wall are pasted using the full-paste method. When pasting, use an iron trowel to evenly scrape a layer of bonding mortar with a thickness of not less than 3mm on each foamed cement board. , the pasting area needs to be greater than 95%, pasted and extruded to the base layer 1 in time, and the gap between the joints between the boards is not greater than 1mm. It should be noted that the bag opening net and reinforced net should be made first at the door and window openings;

S61. At the starting position of cement foam board pasting, a horizontal line pops up along the perimeter of the building, and the standard block is pre-pasted on the horizontal line at the front of the cement foam board construction;

S62. When the foam cement board is at the corner of the wall, you need to arrange the dimensions first, cut the foam cement board, make it vertically staggered, and ensure the verticality of the wall corner.

S63. When pasting the external corners and exterior corners around the window frame, the vertical reference line needs to be popped up first as a basis for controlling the up and down verticality of the external corners. The foam cement boards at the four corners of the door and window openings need to be cut from a single piece of foam cement board. Pave in an "L" shape, no splicing is allowed, and the distance between the joints and the surrounding area of the hole shall not be less than 100mm.

S7. Laying of the plaster layer 6: After the bonding layer 4 and the insulation layer 5 are solidified, lay the plaster layer 6 on the insulation layer 5;

S71. After the large-area paving of foamed cement boards is completed, the plastering mortar 61 will be applied after 24-48 hours depending on the weather conditions. Before construction, use a 2m ruler to check the flatness on the foam cement board plane. The protruding parts need to be scraped off and the surface debris of the foam cement board needs to be cleaned before the plastering mortar 61 can be applied. During the construction of plastering mortar 61, slopes should be made on the cornices, window sills, window lintels, awnings, balconies, roofs and the top of the protruding wall, and drip channels or drip lines need to be made below;

S72, mesh 62 construction: Use an iron trowel to apply the plastering mortar 61 to the foamed cement board. The thickness needs to be controlled at 3-5mm. First, use a large bar to scrape it flat, then use a plastic trowel to smooth it, and then use an iron trowel. Press the mesh 62 that has been cut in advance into the surface of the plastering mortar 61. The overlap width between the planes of the mesh 62 is not less than 50mm, the overlap at the yin and yang corners is not less than 200mm, and the laying must be smooth.

S73. After the construction of the mesh 62 is completed, the second layer of plastering mortar 61 can be painted to cover the mesh 62.

S8. Installation of anchor 7: Determine the installation point of anchor 7, insert surface layer 6, insulation layer 5, bonding layer 4, leveling layer 3, and section layer into base layer 1;

S81, the anchor 7 is anchored on the surface of the first layer of plastering mortar 61 and the pressed mesh 62. After the plastering surface hardens, use an electric drill to drill holes at the corner joints of the foam cement board. When installing the anchor nails, first use an impact Rotate the hole with a low-force but high-frequency impact drill, and adopt penetrating installation. The hole diameter of the insulation board is the same as the hole diameter of the base layer 1, and the anchor bolt is screwed into the hole.

S82, specific installation quantity of anchor 7: Use percussion nylon expansion nails with discs (diameter 50mm) for anchoring. When the wall height is less than 20m, no less than 4 to 5/㎡, and no less than 20m above. 6～8 pieces/㎡;

S83. The installed anchors 7 need to be flush with or slightly embedded in the insulation board. Any single foam cement board with an area larger than 0.1 square meters must have anchors 7 added;

Among them, depending on the base layer 1, the load-bearing mechanism and anchoring depth of the anchor 7 refer to the following chart:

S9. Laying of anti-crack layer: After the construction of insulation layer 5 is completed for 3-7 days and the quality acceptance is passed, and after the installation of anchors 7 is completed, the anti-crack layer can be laid to prevent cracks on the wall. The anti-crack layer is painted with 3 -4mm thick anti-crack mortar.

S91. Configuration requirements for anti-crack mortar:

Pour 5 parts (weight ratio) of dry mixed mortar into a clean plastic bucket, add 1 part of clean water, stir while adding water, and then use a handheld electric mixer to stir for 5 minutes until the mixture is even and the consistency is moderate; The prepared adhesive can be used after stirring for 5 minutes. The prepared adhesive should be used up within 1 hour. Only clean water is allowed to be added to the special adhesive, and other additives (agents) cannot be added. .

S92. The anti-crack mortar needs to be plastered from top to bottom and from left to right. Two people should cooperate. One person should apply anti-crack mortar 3-4mm thick and about 900 wide on the wall. Then the other worker will apply the anti-crack mortar on the wall. Use a trowel to press the alkali-resistant fiberglass mesh into the anti-crack mortar so that the alkali-resistant fiberglass mesh is completely pressed into the anti-crack mortar and positioned 1/3 away from the surface of the anti-crack mortar (it is appropriate to expose the hidden grid after the surface layer solidifies). The adjacent mesh cloths 62 are overlapped by 10cm, and are also overlapped with the folding net to reduce stress concentration.

S10. Laying of the facing layer 8: Set the facing layer 8 on the surface of the plaster layer 6 and cover the anchors 7. If an anti-crack layer is provided, set the facing layer 8 on the surface of the anti-crack layer;

S101. When decorating the mortar, scrape the flexible water-resistant putty twice, polish with sandpaper, apply alkali-resistant primer, and finally apply the decorating mortar;

S101. When decorating the mortar finish, scrape the flexible water-resistant putty twice, polish it with sandpaper and then apply alkali-resistant primer; divide the wall according to the design requirements, from top to bottom all around the entire unit at the same time. Divide into grids to ensure that the surrounding corresponding mortar joints are on the same horizontal line, and all vertical mortar joints are parallel to each other and plumb, so that the mortar joints are horizontally and vertically aligned, and then the facing mortar is constructed.

In some embodiments, when the wall surface of the base layer 1 is provided with fasteners 9, the insulation layer 5 is made of cement foam board, and the cement foam board is provided with bends and spacing cavities 53, the following additional construction steps need to be adopted:

After step 4, add steps S41 and S42:

S41. Determine the installation position of the fastener 9 so that the position of the fastener 9 is consistent with the slot 51 of the insulation layer 5;

S42. Nail the fastener 9 into the wall surface of the base layer 1.

Before step S63, when the insulation layer 5 is bonded with the bonding mortar, the slot 51 needs to be additionally aligned with the fastener 9 so that when the insulation layer 5 is bonded to the leveling layer 3, the fastener 9 is away from the wall surface of the base layer 1 One end can be located in slot 51, with additional steps S64 and S65:

S64. Use the feeding hopper with a flat mouth to plug into the opening of the spacer cavity 53 on the top of the insulation layer 5. Specifically, it can be set at the filling groove 52, and then pour the bonding mortar into the feed hopper to fill the spacer cavity with the bonding mortar. 53, and fill the slot 51 through the filling slot 52;

S65. Use the push rod to insert the sliding block into the spacer cavity 53, and push it up and down along the spacer cavity 53 to compact the bonding mortar. After compaction, the push rod can be used to take out the sliding block without enough filler.

The examples of this specific implementation mode are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. The same components are represented by the same reference numerals. Therefore: all equivalent changes made based on the structure, shape, and principle of this application should be covered by the protection scope of this application.

Claims (10)

1. The outer wall heat insulation layer structure is characterized by comprising a base layer (1), an interface layer (2), a leveling layer (3), a bonding layer (4), a heat insulation layer (5), a plastering layer (6) and an anchor (7); the interface layer (2) is coated on the wall surface of the base layer (1); paving the leveling layer (3) on the interface layer (2); the leveling layer (3) is coated with a bonding layer (4), and the heat preservation layer (5) is arranged on the surface of the leveling layer (3) through the bonding layer (4); paving the plastering layer (6) on the heat preservation layer (5) and trowelling the surface of the heat preservation layer (5); the anchoring pieces (7) penetrate through the plastering layer (6), the heat preservation layer (5), the bonding layer (4), the leveling layer (3) and the interface layer (2) and are inserted into the wall surface of the base layer (1).

2. An exterior wall insulation structure according to claim 1, wherein the finishing layer (6) comprises a finishing mortar (61) and a mesh (62); after the anchoring piece (7) penetrates through the mesh cloth (62) and is anchored on the wall surface of the base layer (1), the plastering mortar (61) is paved.

3. An exterior wall insulation structure according to claim 1, characterized in that a fastening member (9) is further arranged between the insulation layer (5) and the base layer (1).

4. A thermal insulation layer structure according to claim 3, characterized in that the thermal insulation layer (5) is provided with a slot (51) for the fastener (9) to be inserted and is provided with the filling slot (52) to extend into the slot (51).

5. An exterior wall insulation layer structure according to claim 1, characterized in that a bending corner is arranged on one surface of the insulation layer (5) facing the adhesive layer (4), so that a spacing cavity (53) exists between the insulation layer (5) and the adhesive layer (4), and the spacing cavity (53) is filled with the adhesive layer (4) material.

6. The external wall insulation layer structure according to claim 5, wherein the inner wall surface of the spacing cavity (53) is provided with anti-skid patterns (54).

7. The external wall insulation structure according to claim 6, wherein the grains of the anti-slip grains (54) are inclined toward the adhesive layer (4) with respect to the standing state of the insulation layer (5).

8. An exterior wall insulation structure according to any one of claims 5-7, wherein a back cover is provided at one end of the spacer cavity (53), and a corner is provided at the back cover.

9. An exterior wall insulation structure according to claim 5, wherein the insulation (5) is further provided with a tamper part (55), the tamper part (55) being in sliding connection with the insulation (5) and being located in the compartment (53).

10. A construction method, characterized in that the construction molding is performed by the construction method of the external wall insulation layer structure of claim 1, comprising the following steps:

pretreatment of materials: the materials of the heat preservation layer (5) are premixed and molded, and the materials of the leveling layer (3) are premixed, mixed and molded into a mixture;

and (3) base layer treatment: cleaning the wall surface of the base layer (1);

wherein, the wall penetrating hole needs to be repaired and leveled;

and (3) coating an interface layer: uniformly coating a layer of the interface layer (2) on the wall surface of the base layer (1) after the treatment;

wherein, when the water absorption is higher than the standard water absorption, the wall surface needs pre-wetting treatment;

paving a leveling layer: after the interface layer (2) is solidified, the waterproof mortar is smeared on the surface of the interface agent, and the whole wall surface is filled up;

and (3) coating an adhesive layer: the material of the bonding layer (4) and the stirring molding mixture are coated on the opposite surfaces of the leveling layer (3) and the heat preservation layer (5);

and (3) heat preservation layer installation: the heat preservation layer (5) is smeared with adhesive mortar and is pasted by a full paste method;

paving a plastering layer: after the bonding layer (4) and the heat preservation layer (5) are solidified, paving the plastering layer (6) on the heat preservation layer (5);

and (3) anchor assembly: determining mounting points of the anchoring pieces (7), penetrating through the plastering layer (6), the heat insulation layer (5), the bonding layer (4), the leveling layer (3) and the section layer, and inserting the anchoring pieces into the base layer (1);

finishing layer treatment: arranging a finishing layer (8) on the surface of the plastering layer (6) and covering the anchoring piece (7);

wherein an anti-cracking layer is also paved between the plastering layer (6) and the finishing layer (8).