A construction technology for external thermal insulation of exterior walls with composite panels

Abstract

The present application relates to an external thermal insulation construction process for a composite board exterior wall, including S1 construction preparation; S2 leveling the exterior wall of the construction, cleaning the exterior wall of the construction wall, preparing cement mortar and applying the cement mortar to the exterior wall of the construction wall to form a mortar leveling layer; embedded parts are preset in the mortar leveling layer; S3 installing the thermal insulation wallboard, manufacturing an adhesive and applying the adhesive to the thermal insulation wallboard, and the thermal insulation wallboard is adhered to the mortar leveling layer through the adhesive; using anchor bolts to anchor the thermal insulation wallboard in the embedded parts of the mortar leveling layer to firmly fix the thermal insulation wallboard to the mortar leveling layer; S4 setting the protective layer and S5 setting the decorative layer. When constructing the composite board exterior wall in the present application, the anchor bolts are anchored in the embedded parts, which can greatly reduce the damage to the construction wall.

Description

Technical Field

[0001] This application relates to the technical field of exterior wall construction, and particularly relates to an external thermal insulation construction process for composite board exterior walls. Background Art

[0002] One of the main measures for building energy conservation is wall thermal insulation to reduce the power consumption in the building interior. Among them, wall thermal insulation includes two forms: interior wall thermal insulation and exterior wall thermal insulation. Research shows that the thermal insulation effect of exterior wall thermal insulation is at least 25% higher than that of interior wall thermal insulation. Therefore, the application of exterior wall thermal insulation is more extensive.

[0003] Currently, when constructing existing thermal insulation exterior walls, after the insulation board is fixed to the construction wall by bonding, anchor bolts are usually used for reinforcement; directly anchoring the anchor bolts to the construction wall is likely to damage the construction wall, resulting in a decrease in the strength of the construction wall and prone to local cracking. Summary of the Invention

[0004] In order to reduce the damage to the construction wall during the construction of thermal insulation exterior walls, this application provides an external thermal insulation construction process for composite board exterior walls.

[0005] An external thermal insulation construction process for composite board exterior walls provided by this application adopts the following technical solutions:

[0006] An external thermal insulation construction process for composite board exterior walls specifically includes the following steps:

[0007] S1 Construction preparation: Install a scaffolding on the outside of the construction wall. If the construction wall is at a high-rise building, it is necessary to enclose the surrounding of the building and set up construction warning signs.

[0008] S2 Leveling the exterior wall for construction: Clean the exterior wall of the construction wall, prepare cement mortar and apply the cement mortar to the exterior wall of the construction wall to form a mortar leveling layer; embedded parts are preset in the mortar leveling layer.

[0009] S3 Installation of thermal insulation wall panels: Prepare an adhesive and apply the adhesive to the thermal insulation wall panels. The thermal insulation wall panels are bonded to the mortar leveling layer through the adhesive; use anchor bolts to anchor the thermal insulation wall panels into the embedded parts in the mortar leveling layer to firmly fix the thermal insulation wall panels to the mortar leveling layer.

[0010] S4 Setting the protective layer: Prepare plastering mortar and evenly apply the plastering mortar on the outer side of the thermal insulation wall panels; then stretch and attach the fiberglass mesh cloth tightly to the plastering mortar, press the fiberglass mesh cloth into the interior of the plastering mortar and then reapply a layer of plastering mortar. After the two layers of plastering mortar are cured through maintenance, a protective layer is formed.

[0011] S5 Setting the decorative layer: Apply the decorative coating on the outer side of the protective layer. After the decorative coating is cured through maintenance, a decorative layer is formed.

[0012] By adopting the above technical solution, in the present application, a mortar leveling layer, a thermal insulation wall panel, a protective layer and a decorative layer are successively arranged on the outer wall surface of the construction wall, thereby forming a composite board exterior wall with a thermal insulation function; wherein the thermal insulation wall panel plays a main thermal insulation role, the protective layer is used to improve the structural strength of the composite board exterior wall, and the decorative layer is used to improve the waterproof effect of the composite board exterior wall.

[0013] When laying the mortar leveling layer in the present application, the embedded parts are preset in the mortar leveling layer and formed as a whole with the mortar leveling layer; then when installing the thermal insulation wall panel, by fixing the anchor bolts in the embedded parts, it can not only play the role of fixing the thermal insulation wall panel and facilitate the laying of the thermal insulation wall panel, but also greatly reduce the damage to the construction wall and is beneficial to keeping the construction wall in good structural strength.

[0014] Optionally, in S5, the decorative coating takes the synthetic resin emulsion as the main binder, and colored sand grains and stone powder are added inside the synthetic resin emulsion, and it is applied to the outer side surface of the protective layer by spraying.

[0015] By adopting the above technical solution, the decorative coating formed by mixing the synthetic resin emulsion, colored sand and stone powder can be applied to the outer side surface of the protective layer by spraying. The construction of the spraying method can greatly improve the convenience of coating the decorative layer and has the advantage of shortening the construction period of coating the decorative layer.

[0016] Optionally, the construction of the exterior wall leveling in S2 includes the following steps:

[0017] S21, mixing cement and water to prepare cement mortar, applying the cement mortar to the outer wall surface of the construction wall and curing it to form a first leveling layer;

[0018] S22, each embedded part is used to cooperate with the anchor bolt for fixing. By measuring the distance between adjacent anchor bolts on each thermal insulation wall panel and the distance between the adjacent anchor bolts on the two thermal insulation wall panels when the two thermal insulation wall panels are in contact with each other, the embedded positions of each embedded part on the outer side surface of the first leveling layer are calculated, and each embedded part is fixed at the embedded position;

[0019] S23, applying cement mortar into the gap between adjacent embedded parts, and the outer side surface of the cement mortar is flush with the side of the embedded part away from the construction wall. After the cement mortar is cured, a second leveling layer is formed.

[0020] By adopting the above technical solution, the first leveling layer is provided for leveling the outer wall surface of the construction wall, so that each embedded part can be in the same vertical plane when fixed to the construction wall. After all the embedded parts are fixed, cement mortar is smeared to form the second leveling layer, making the second leveling layer flush with the outer side of the embedded parts, which is beneficial to the subsequent laying and installation of the thermal insulation wall panels and reduces the occurrence of hollowing between the thermal insulation wall panels and the mortar leveling layer.

[0021] Optionally, steel strands are connected between adjacent embedded parts, and a rectangular frame is surrounded and arranged around all the embedded parts. The rectangular frame includes four connecting plates spliced end to end. When adjacent connecting plates are connected to each other, all the steel strands are in a tensioned state; the rectangular frame is pre-fixed to the first leveling layer through fasteners.

[0022] By adopting the above technical solution, when the embedded parts are pre-embedded, by forming a rectangular frame by connecting the four connecting plates end to end, each steel strand can be in a tensioned state, so that the embedded parts are arranged at intervals in the transverse and longitudinal directions in sequence. Then, the rectangular frame is pre-fixed to the first leveling layer by using fasteners, which has the advantage of convenient installation; moreover, compared with fixing the embedded parts to the first leveling layer one by one, this fixing method can greatly reduce the damage to the first leveling layer and keep the first leveling layer in good structural strength.

[0023] In addition, by using steel strands to connect the embedded parts, the steel strands not only have high structural strength and are not easily stretched and elongated under tension; but also can be bent when the four connecting plates are separated from each other, so that the gap between the embedded parts is reduced, the space occupied by the embedded parts and the connecting plates is reduced, which is beneficial to the storage and handling of the embedded parts and the connecting plates.

[0024] Optionally, a first ring block is provided on one side in the extending direction of the connecting plate, and the first ring block is located in the middle of the connecting plate; two second ring blocks are provided on the other side in the extending direction of the connecting plate, and the two second ring blocks are respectively located on both sides of the connecting plate; after the first ring block is inserted between the two second ring blocks, the fastener passes through the first ring block and the second ring blocks and is fixed to the first leveling layer.

[0025] By adopting the above technical solution, after the first ring block of each connecting plate is inserted between the two second ring blocks of the adjacent connecting plate, the fastener passes through the through holes inside the first ring block and the second ring blocks, and it can conveniently connect the connecting plates end to end to form a rectangular frame.

[0026] Optionally, a limiting part is provided at the end of the anchor rod, and the outer diameter of the limiting part is larger than the outer diameter of the anchor rod; the embedded part is arranged as a cylindrical barrel, and an installation groove is provided on the side of the embedded part away from the construction wall, and a plurality of clamping components for positioning the limiting part are fixed at the notch position of the installation groove, and all the clamping components are arranged around the inner peripheral wall of the installation groove;

[0027] Each of the clamping components includes an arc block and a telescopic rod, one end of the telescopic rod is fixed to the inner wall of the mounting groove, and the other end is fixedly connected to the outer arc surface of the arc block; a first elastic member is provided inside the telescopic rod, and the first elastic member is used to make the arc block normally abut against the adjacent arc block. At this time, all the arc blocks together form a circular ring, and the inner diameter of the circular ring matches the outer diameter of the anchor rod.

[0028] By adopting the above-mentioned technical solution, when using anchor rods to fix the thermal insulation wall panels, the limiting portion at the end of the anchor rod is inserted into the embedded part. When the limiting portion abuts against the arc block, it can push the arc block to move outward and compress the first elastic part; when the limiting portion continues to enter the embedded part and is offset from the arc block, the arc block is reset under the elastic force of the corresponding first elastic part. At this time, each arc block returns to a position of abutting against each other, and the limiting portion is stuck at the bottom of the circular ring formed by the arc block, so that the anchor rod is firmly fixed to the embedded part.

[0029] Optionally, a movable component is provided at the bottom of the mounting groove, and the movable component includes a movable cylinder movably arranged at the bottom of the mounting groove and a plurality of second elastic members fixed between the movable cylinder and the side wall of the mounting groove; the movable cylinder is abutted against the arc block, and the inner diameter of the movable cylinder matches the outer diameter of the limiting portion; all the second elastic members are arranged around the outer peripheral side of the movable cylinder, and the second elastic members normally move the movable cylinder to the center position of the mounting groove.

[0030] By adopting the above-mentioned technical scheme, when all the embedded parts are fixed to the first leveling layer through the rectangular frame, the embedded parts located in the middle of the rectangular frame may have a large range of displacement relative to the embedded position due to the deformation accumulation of each steel strand; by providing a movable component, the limiting part can push the movable cylinder to move in the installation groove after entering the movable cylinder of the movable component, so that even if the embedded parts are greatly offset from the embedded positions, the anchor rods can be accurately inserted and fixed in the embedded parts, thereby firmly fixing the thermal insulation wall panels to the mortar leveling layer.

[0031] Optionally, heat insulation cotton is provided between the movable cylinder and the inner wall of the installation groove, and the second elastic member is passed through the heat insulation cotton.

[0032] By adopting the above technical solution, the setting of the heat insulation cotton is used to improve the heat insulation effect between the movable tube and the inner wall of the installation groove, thereby further enhancing the heat insulation and thermal insulation capacity of the composite board exterior wall.

[0033] Optionally, each of the thermal insulation wall panels is provided with a slot for the anchor rod to pass through, and the inner diameter of the slot matches the outer diameter of the limiting portion; the end of the anchor rod away from the limiting portion is provided with a positioning portion for matching and plugging with the slot;

[0034] An insert block is fixed on the side of the insulation wall panel facing the construction wall, and the insert block is located outside the slot; when the insulation wall panel is fixed to the second leveling layer, the insert block matches the gap between the arc block and the side wall of the installation slot.

[0035] By adopting the above technical solution, the anchor rod passes through the slot of the thermal insulation wall panel and enters the installation slot of the embedded part, and then the anchor rod is knocked into the embedded part by knocking, so that the limiting part at the end of the anchor rod matches and is stuck in the arc block. At this time, the positioning part can match and enter the inside of the slot, and there is an interference fit between the positioning part and the slot, which can make the anchor rod firmly fix the thermal insulation wall panel. In addition, the thermal insulation wall panel is firmly fixed to the second leveling layer, and the plug-in block on the thermal insulation wall panel can match the gap between the inserted arc block and the side wall of the installation slot, which plays a role in limiting the movement of the arc block, and can effectively reduce the occurrence of the anchor rod detaching from the embedded part.

[0036] Optionally, in step S22, after the embedded position of the embedded part is calculated, the embedded position is drawn on the outer side of the first leveling layer, and then a circle of clearance interval is drawn on the outer peripheral side of each embedded position. The distance from the clearance interval to the embedded position needs to be smaller than the maximum deformation of the second elastic part; when the rectangular frame is fixed to the first leveling layer, visual inspections are performed one by one to determine whether the embedded parts are inside the clearance interval.

[0037] By adopting the above technical solution, before the embedded parts are installed and when the embedded positions of the embedded parts are confirmed, a deformation-allowed clearance interval is drawn around each embedded position. After the subsequent rectangular frame is fixed, it can be visually determined whether the anchor rod can be successfully inserted into the installation groove of the embedded parts, thereby ensuring smooth construction of the subsequent insulation wall panels.

[0038] In summary, the present application includes at least one of the following beneficial technical effects:

[0039] 1. By pre-setting embedded parts when laying the mortar leveling layer, the embedded parts and the mortar leveling layer are formed into one piece. When the insulation wall panels are installed later, the anchor rods can be fixed in the embedded parts, which can greatly reduce the damage to the construction wall and help maintain good structural strength of the construction wall;

[0040] 2. By using steel strands to connect adjacent embedded parts, and fixing a rectangular frame around all embedded parts, fixing the rectangular frame to the first leveling layer and aligning each embedded part with a predetermined embedded position, the installation and fixing of each embedded part can be completed quickly;

[0041] 3. By providing a movable component at the bottom of the installation groove of the embedded part, the limiting part of the anchor rod can push the movable cylinder to move in the installation groove after entering the movable cylinder of the movable component, so that the anchor rod can be accurately inserted and fixed in the embedded part even when the embedded part is greatly offset relative to the embedded position. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the layer structure of the composite board exterior wall in this embodiment;

[0043] Figure 2 is Figure 1 an enlarged view of part A in;

[0044] Figure 3 It is a schematic diagram of the structure of the embedded part, steel strand and rectangular frame in this embodiment;

[0045] Figure 4 is Figure 3 an enlarged view of part B in;

[0046] Figure 5 is Figure 3 an enlarged view of part C in;

[0047] Figure 6 It is a schematic diagram of the structure in which the thermal insulation wall panel is fixed to the embedded part by anchor bolts in this embodiment;

[0048] Figure 7 It is a schematic diagram of the structure in which the thermal insulation wall panel is laid on the second leveling layer in this embodiment;

[0049] Figure 8 It is a schematic diagram of the structure of the thermal insulation wall panel in this embodiment.

[0050] Explanation of reference numerals: 1, construction wall; 2, mortar leveling layer; 21, first leveling layer; 22, second leveling layer; 3, thermal insulation wall panel; 31, slot; 32, plug; 4, protective layer; 41, fiberglass mesh; 5, decorative layer; 6, embedded part; 61, installation groove; 62, clamping component; 621, arc block; 622, telescopic rod; 623, first spring; 63, movable component; 631, movable cylinder; 632, second spring; 64, heat insulation cotton; 7, steel strand; 8, rectangular frame; 81, connecting plate; 811, first ring block; 812, second ring block; 9, anchor bolt; 91, limiting part; 92, positioning part. Detailed implementation manners

[0051] The following further elaborates on this application in conjunction with the attached Figure 1-8 drawings.

[0052] The embodiment of this application discloses a construction technology for external thermal insulation of a composite board exterior wall.

[0053] Refer to Figure 1, the composite panel exterior wall of this embodiment includes a construction wall 1, a mortar leveling layer 2, a thermal insulation wall panel 3, a protective layer 4, and a decorative layer 5 arranged in sequence from inside to outside. Among them, the mortar leveling layer 2 is used to level the outer wall surface of the construction wall 1 to facilitate the construction and installation of the thermal insulation wall panel 3; the thermal insulation wall panel 3 uses an RZ graphite-modified homogeneous composite thermal insulation board, making it have good heat insulation and heat preservation effects, which is conducive to maintaining a stable indoor temperature of the building, achieving the effect of saving electrical energy such as air conditioners and heaters, and conforming to the concept of green buildings.

[0054] Refer to Figure 1 , a fiberglass mesh cloth 41 is arranged inside the protective layer 4. After the fiberglass mesh cloth 41 is integrally formed with the mortar, it has the function of improving the structural strength and anti-pulling ability of the composite panel exterior wall. The decorative layer 5 is provided to play a decorative role, making the outer surface of the composite panel exterior wall look beautiful. At the same time, it also has the effects of waterproofing and anti-corrosion, which is conducive to improving the service life of the composite panel exterior wall.

[0055] Refer to Figure 2 , Figure 3 , the mortar leveling layer 2 includes a first leveling layer 21 and a second leveling layer 22, where the first leveling layer 21 is located on the side close to the construction wall 1. A plurality of embedded parts 6 are arranged inside the second leveling layer 22; the adjacent embedded parts 6 are connected by steel strands 7; a rectangular frame 8 is arranged around all the embedded parts 6 and the steel strands 7. The rectangular frame 8 of this embodiment includes four connecting plates 81 connected end to end. Each connecting plate 81 is fixedly connected to the adjacent embedded part 6, so that all the embedded parts 6 and the rectangular frame 8 form an integral structure, which is convenient for fixing and installing each embedded part 6 on the first leveling layer 21, and then filling with slurry to form the second leveling layer 22.

[0056] Refer to Figure 4 , each connecting plate 81 is spliced and fixed to the adjacent connecting plate 81; a first ring block 811 is integrally formed on one side of the extending direction of the connecting plate 81. The first ring block 811 is located in the middle of the connecting plate 81, and a first through hole is provided at the center of the first ring block 811. Two second ring blocks 812 are arranged on the side of the connecting plate 81 away from the first ring block 811. The two second ring blocks 812 are symmetrically arranged on both sides of the width direction of the connecting plate 81 and are integrally formed with the connecting plate 81 respectively. A second through hole is provided at the center of the second ring block 812.

[0057] Refer to Figure 4, the distance between two adjacent second ring blocks 812 is set to be equal to the width of the first ring block 811. When the first ring block 811 of the connecting plate 81 is inserted between two second ring blocks 812 of an adjacent connecting plate 81, the first through hole can be aligned with the second through hole. At this time, the first ring block 811 and the second ring block 812 are fixed by fasteners, enabling each connecting plate 81 to be spliced to form a rectangular frame 8; moreover, when four connecting plates 81 are spliced together, all the steel strands 7 inside the rectangular frame 8 are in a taut state. In addition, fasteners can also be used to fix the rectangular frame 8 to the first leveling layer 21.

[0058] Refer to Figure 5 , Figure 6 , in this embodiment, the embedded part 6 is set in the shape of a cylindrical tube. An installation groove 61 is formed on the side of the embedded part 6 away from the construction wall 1, and the shape of the installation groove 61 is adapted to the shape of the embedded part 6; a plurality of clamping components 62 are fixed at the notch position of the installation groove 61, and all the clamping components 62 are arranged equidistantly around the inner peripheral wall of the installation groove 61. Each clamping component 62 includes an arc-shaped block 621 and a telescopic rod 622, wherein the telescopic rod 622 is fixed to the inner wall of the installation groove 61, and the end of the telescopic rod 622 away from the inner wall of the installation groove 61 is fixedly connected to the outer arc surface of the arc-shaped block 621. A first elastic member is fixed inside the telescopic rod 622. In this embodiment, the first elastic member is set as a first spring 623. The first spring 623 normally makes the arc-shaped block 621 move away from the inner wall of the installation groove 61, so that the arc-shaped blocks 621 can abut against each other and jointly form a ring.

[0059] Refer to Figure 5 , Figure 6 , a movable component 63 is fixed to the bottom of the installation groove 61 of the embedded part 6. The movable component 63 includes a movable cylinder 631 and a plurality of second elastic members; in this embodiment, the second elastic member is set as a second spring 632. One end of the second spring 632 is fixedly connected to the inner wall of the installation groove 61, and the other end of the second spring 632 is fixedly connected to the movable cylinder 631; all the second springs 632 are arranged equidistantly around the outer peripheral side of the movable cylinder 631, enabling the movable cylinder 631 to move in the installation groove 61; the elastic force of all the second springs 632 makes the movable cylinder 631 normally located at the center position of the installation groove 61, and the side of the movable cylinder 631 away from the bottom of the installation groove 61 can abut against the arc-shaped block 621.

[0060] Refer to Figure 6 , a heat insulation cotton 64 is also embedded between the movable cylinder 631 and the inner wall of the installation groove 61. The heat insulation cotton 64 is provided to fill the hollow part of the embedded part 6, and can enhance the heat insulation and heat preservation capabilities of the embedded part 6 and the mortar leveling layer 2, thereby further improving the heat insulation and heat preservation effect of the composite board exterior wall.

[0061] Refer to Figure 6 ,Figure 7 , multiple insulation wall panels 3 are provided, and multiple insulation wall panels 3 are evenly laid on the second leveling layer 22. The outer edge of the insulation wall panel 3 located on the upper side of the two vertically adjacent insulation wall panels 3 is directly opposite to the center position of the insulation wall panel 3 below. Each insulation wall panel 3 is provided with multiple slots 31 for inserting anchor rods 9, one of which is located at the center position of the insulation wall panel 3, and the other slots 31 are respectively arranged at the outer edges of the insulation wall panel 3; after the insulation wall panel 3 is fixed, each slot 31 can be directly opposite to the embedded part 6, so that the anchor rod 9 can pass through the insulation wall panel 3 through the slot 31 and be fixed inside the embedded part 6. In this embodiment, the outer diameter of the anchor rod 9 is smaller than the inner diameter of the slot 31, and a positioning portion 92 is fixed at one end of the anchor rod 9 away from the embedded part 6, and the outer diameter of the positioning portion 92 is set equal to the outer diameter of the slot 31; the positioning portion 92 and the slot 31 are interference fit, so that after the anchor rod 9 passes through the slot 31, the positioning portion 92 can be firmly fixed inside the slot 31.

[0062] Reference Figure 6 An integrally formed limiting portion 91 is fixed to one end of the anchor rod 9 away from the positioning portion 92, and the limiting portion 91 is set as a cone head, and the maximum outer diameter of the limiting portion 91 is greater than the outer diameter of the anchor rod 9; when the limiting portion 91 of the anchor rod 9 is inserted into the mounting groove 61 and abuts against the arc block 621, the limiting portion 91 can open each arc block 621; when the limiting portion 91 continues to move into the mounting groove 61, the limiting portion 91 and the arc block 621 are staggered, and at this time, the arc block 621 is reset to abut against each other under the elastic force of the corresponding first spring 623, and the large end surface of the limiting portion 91 can be stuck in the arc block 621, thereby reducing the situation where the anchor rod 9 is separated from the embedded part 6.

[0063] Reference Figure 6 , Figure 8 A plurality of insert blocks 32 are fixed to one side of the insulation wall panel 3 close to the construction wall 1, and each insert block 32 is located outside the slot 31; when the insulation wall panel 3 is laid on the second leveling layer 22 and the limiting portion 91 of the anchor rod 9 is inserted into the mounting groove 61 of the embedded part 6, the insert block 32 can match the area between the inserted arc plate and the inner wall of the mounting groove 61, thereby playing the role of fixing the arc plate, thereby further reducing the possibility of the anchor rod 9 detaching from the embedded part 6 outward.

[0064] The construction process of composite panel exterior wall insulation specifically includes the following steps:

[0065] S1 Construction preparation: install scaffolding outside the construction wall 1. If the construction wall 1 is located on a high floor of a building, it is necessary to enclose the building and set up construction warning signs; during construction, personnel need to be arranged to direct pedestrians to avoid.

[0066] S2 is to level the outer wall surface of the construction wall 1, clean the outer wall surface of the construction wall 1, mix cement and water to make cement mortar, apply the cement mortar to the outer wall surface of the construction wall 1, and form a mortar leveling layer 2 after the cement mortar is cured. The mortar leveling layer 2 is preset with embedded parts 6. Specifically, the following steps are included:

[0067] S20, using a high-pressure water gun to wash the outer wall surface of the construction wall 1, and clean the oil stains, floating dust, etc. on the surface of the construction wall 1; the weathered part of the outer wall surface of the construction wall 1 needs to be removed.

[0068] S21, pour a certain amount of clean water into a clean plastic bucket, add lime powder while stirring with a handheld electric stirrer, and add water in an amount of about 40% of the lime powder; stir thoroughly for about 5 minutes to form cement mortar with moderate consistency, and apply the cement mortar to the outer wall surface of the construction wall 1. The cement mortar solidifies after natural curing for at least 1 day to form the first leveling layer 21. Note that the prepared cement mortar should be used up within 2 hours, and it is strictly forbidden to use outdated mortar.

[0069] S22, first, four connecting plates 81 are spliced ​​together and fixed by fasteners, and the four connecting plates 81 are fixedly connected to form a rectangular frame 8; the spacing between adjacent fasteners on the rectangular frame 8 is measured, and the fixing positions of the fasteners are drawn on the surface of the first leveling layer 21.

[0070] Secondly, the distances between adjacent embedded parts 6 inside the rectangular frame 8 are measured, the embedded positions corresponding to the embedded parts 6 on the surface of the first leveling layer 21 are calculated, and the embedded positions are drawn on the first leveling layer 21 .

[0071] Furthermore, a circle of clearance interval is drawn on the outer circumference of each pre-embedded position, and the distance from the clearance interval to the pre-embedded position needs to be smaller than the maximum deformation of the second spring 632.

[0072] Finally, the fasteners are fixed in a fixed position so that the rectangular frame 8 and all embedded parts 6 are fixed to the first leveling layer 21. Visually check whether each embedded part 6 is inside the yielding area. If the embedded part 6 is exposed outside the yielding area, the position of the embedded part 6 can be adjusted and the embedded part 6 can be fixed inside the yielding area using fastening components such as nails.

[0073] S23, apply cement mortar to the gap between adjacent embedded parts 6, and the cement mortar covers the steel strand 7; the outer side of the cement mortar is set flush with the side of the embedded part 6 away from the construction wall 1, and the cement mortar solidifies after natural curing for at least 1 day to form a second leveling layer 22.

[0074] S3. Installation of the thermal insulation wall panel 3: Manufacture the adhesive and apply the adhesive to the thermal insulation wall panel 3. The thermal insulation wall panel 3 is adhered to the mortar leveling layer 2 through the adhesive; Use the anchor rod 9 to anchor the thermal insulation wall panel 3 into the embedded part 6 of the mortar leveling layer 2 to firmly fix the thermal insulation wall panel 3 to the mortar leveling layer 2. The specific steps are as follows:

[0075] S31. Pour a certain amount of clean water into a clean plastic bucket, and while stirring with a handheld electric stirrer, add the adhesive powder. The water addition amount is about 25% of the lime powder; Stir well for about 5 minutes until evenly stirred and with moderate consistency, and let it stand for 5 minutes for ripening to make the adhesive. Note that the prepared adhesive should be used up within 2 hours.

[0076] S32. When laying the thermal insulation wall panel 3, lay it in sequence from the lower layer to the upper layer. Apply the adhesive to the side of the thermal insulation wall panel 3 where the insert block 32 is provided, then pass the anchor rod 9 through the slot 31 at the center of the thermal insulation wall panel 3, and align the anchor rod 9 with the corresponding embedded part 6; Tap the anchor rod 9 into the embedded part 6, and at the same time fix the thermal insulation wall panel 3 to the mortar leveling layer 2. At this time, the side of the thermal insulation wall panel 3 coated with the adhesive is adhered to the mortar leveling layer 2. Note that each thermal insulation wall panel 3 should be immediately fixed to the mortar leveling layer 2 after being coated with the adhesive.

[0077] S4. Setting of the protective layer 4: Pour a certain amount of clean water into a clean plastic bucket, and while stirring with a handheld electric stirrer, add the powder polymer modified mortar. The water addition amount is about 25% of the powder; Stir well for 5 - 7 minutes until evenly stirred and with moderate consistency, and let it stand for 5 minutes for ripening to make the plastering mortar; When using, stir it again before use. Note that the prepared plastering mortar should be used up within 2 hours.

[0078] Apply the plastering mortar evenly on the outer side of the thermal insulation wall panel 3, and note to ensure good adhesion between the mortar and the thermal insulation wall panel 3; Then stretch the cut fiberglass mesh cloth 41 of suitable length and stick it on the plastering mortar, and press the fiberglass mesh cloth 41 into the plastering mortar with a trowel while it is wet; Finally, apply another layer of plastering mortar on the surface of the plastering mortar. The second layer of plastering mortar should cover the corrugated mesh cloth; After natural curing of the two layers of plastering mortar for at least 3 days, the plastering mortar solidifies to form the protective layer 4.

[0079] S5. Setting of the decorative layer 5: Manufacture the decorative coating. The decorative coating uses synthetic resin emulsion as the main binder, and colored sand grains and stone powder are added inside the synthetic resin emulsion; Apply the decorative coating to the outer wall surface of the construction wall 1 by spraying method, and conduct natural curing on the decorative coating for 1 - 2 days. The decorative coating solidifies to form the decorative layer 5.

[0080] The above is the preferred embodiment of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A construction technology for external thermal insulation of composite board exterior walls, characterized in that, Specifically, it includes the following steps: S1 Construction preparation: Install a scaffolding on the outer side of the construction wall (1). If the construction wall (1) is at a high-rise building, it is necessary to enclose the surrounding of the building and set up construction warning signs. S2 Leveling the exterior wall of the construction: Clean the exterior wall of the construction wall (1), make cement mortar and apply the cement mortar to the exterior wall of the construction wall (1) to form a mortar leveling layer (2); embedded parts (6) are preset in the mortar leveling layer (2). S2 Leveling the exterior wall of the construction includes the following steps: S21 Mix cement and water and stir to make cement mortar. Apply the cement mortar to the exterior wall of the construction wall (1) and cure it to form a first leveling layer (21). S22 Each embedded part (6) is used to cooperate with an anchor rod (9) for fixation. By measuring the distance between adjacent anchor rods (9) on each thermal insulation wall panel (3), and the distance between the adjacent anchor rods (9) on two thermal insulation wall panels (3) when the two thermal insulation wall panels (3) are in contact with each other, the embedded positions of the embedded parts (6) on the outer side of the first leveling layer (21) are calculated, and each embedded part (6) is fixed at the embedded position. S23 Apply cement mortar to the gap between adjacent embedded parts (6). The outer side of the cement mortar is flush with the side of the embedded part (6) away from the construction wall (1). After the cement mortar cures, a second leveling layer (22) is formed. S3 Installation of the thermal insulation wall panel (3): Make an adhesive and apply the adhesive to the thermal insulation wall panel (3). The thermal insulation wall panel (3) is adhered to the mortar leveling layer (2) through the adhesive; use the anchor rod (9) to anchor the thermal insulation wall panel (3) into the embedded part (6) of the mortar leveling layer (2) to firmly fix the thermal insulation wall panel (3) to the mortar leveling layer (2). S4 Setting the protective layer (4): Make plastering mortar and evenly apply the plastering mortar on the outer side of the thermal insulation wall panel (3); then stretch and attach the fiberglass mesh cloth (41) to the plastering mortar, press the fiberglass mesh cloth (41) into the plastering mortar and then reapply a layer of plastering mortar. After the two layers of plastering mortar are cured through maintenance, a protective layer (4) is formed. S5 Setting the decorative layer (5): Apply a decorative coating to the outer side of the protective layer (4). After the decorative coating is cured through maintenance, a decorative layer (5) is formed. A steel strand (7) is connected between adjacent embedded parts (6). A rectangular frame (8) is commonly surrounded around all the embedded parts (6). The rectangular frame (8) includes four connecting plates (81) spliced end to end. When adjacent connecting plates (81) are connected to each other, all the steel strands (7) are in a taut state; the rectangular frame (8) is pre-fixed to the first leveling layer (21) through fasteners. A limiting part (91) is provided at the end of the anchor rod (9), and the outer diameter of the limiting part (91) is larger than the outer diameter of the anchor rod (9). The embedded part (6) is arranged as a cylindrical barrel. On the side of the embedded part (6) away from the construction wall (1), there is an installation groove (61). At the notch position of the installation groove (61), a plurality of clamping components (62) for positioning the limiting part (91) are fixed. All the clamping components (62) are arranged around the inner peripheral wall of the installation groove (61). Each clamping component (62) includes an arc-shaped block (621) and a telescopic rod (622). One end of the telescopic rod (622) is fixed to the inner wall of the installation groove (61), and the other end is fixedly connected to the outer arc surface of the arc-shaped block (621). A first elastic member is arranged inside the telescopic rod (622). The first elastic member is used to make the arc-shaped block (621) normally abut against the adjacent arc-shaped block (621). At this time, all the arc-shaped blocks (621) jointly form a ring, and the inner diameter of the ring matches the outer diameter of the anchor rod (9).

2. The construction technology for external thermal insulation of composite board exterior walls according to claim 1, characterized in that: In S5, the finish coating uses synthetic resin emulsion as the binder, and colored sand grains and stone powder are added inside the synthetic resin emulsion. It is applied to the outer side of the protective layer (4) by spraying.

3. The construction technology for external thermal insulation of composite board exterior walls according to claim 1, characterized in that: On one side in the extending direction of the connecting plate (81), there is a first ring block (811), and the first ring block (811) is located in the middle of the connecting plate (81). On the other side in the extending direction of the connecting plate (81), there are two second ring blocks (812), and the two second ring blocks (812) are respectively located on both sides of the connecting plate (81). After the first ring block (811) is inserted between the two second ring blocks (812), the fastener passes through the first ring block (811) and the second ring block (812) and is fixed to the first leveling layer (21).

4. The construction technology for external thermal insulation of composite board exterior walls according to claim 1, characterized in that: At the bottom of the installation groove (61), there is a movable component (63). The movable component (63) includes a movable cylinder (631) movably arranged at the bottom of the installation groove (61) and a plurality of second elastic members fixed between the movable cylinder (631) and the side wall of the installation groove (61). The movable cylinder (631) abuts against the arc-shaped block (621), and the inner diameter of the movable cylinder (631) matches the outer diameter of the limiting part (91). All the second elastic members are arranged around the outer peripheral side of the movable cylinder (631). The second elastic members normally move the movable cylinder (631) to the central position of the installation groove (61).

5. The construction technology for external thermal insulation of composite board exterior walls according to claim 4, characterized in that: There is a heat-insulating cotton (64) between the movable cylinder (631) and the inner wall of the installation groove (61), and the second elastic member passes through the heat-insulating cotton (64).

6. The construction technology for external thermal insulation of composite board exterior walls according to claim 4, characterized in that: Each heat-insulating wall panel (3) is provided with a slot (31) for the anchor rod (9) to pass through. The inner diameter of the slot (31) matches the outer diameter of the limiting part (91). At one end of the anchor rod (9) away from the limiting part (91), there is a positioning part (92) for matching and inserting into the slot (31). On the side of the heat-insulating wall panel (3) facing the construction wall (1), there is an insertion block (32), and the insertion block (32) is located outside the slot (31). When the heat-insulating wall panel (3) is fixed to the second leveling layer (22), the insertion block (32) is inserted into the gap between the arc-shaped block (621) and the side wall of the installation groove (61) in a matching manner.

7. The construction technology for external thermal insulation of composite board exterior walls according to claim 4, characterized in that: In step S22, after calculating the embedding position of the embedded part (6), draw the embedding position on the outer side of the first leveling layer (21), and then draw a circle of clearance intervals on the outer peripheral side of each embedding position. The distance from the clearance interval to the embedding position needs to be less than the maximum deformation amount of the second elastic member; after the rectangular frame (8) is fixed to the first leveling layer (21), visually check one by one to ensure that the embedded part (6) is inside the clearance interval.

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