Construction process of anti-cracking thermal insulation layer of residential outer wall

Abstract

The application discloses a kind of anti-cracking thermal insulation layer construction technology of residential outer wall, support connecting piece is prefabricated and extended out of outer wall in outer wall, simultaneously, a plurality of grouting grooves are equipped in the processing layer of thermal insulation layer component, and lap joint connecting piece is prefabricated and extended into grouting groove in processing layer, so that thermal insulation layer component can be erected on the support connecting piece of outer wall by lap joint connecting piece, installation is convenient, improve construction efficiency, grouting barrel is equipped on lap joint connecting piece, grouting barrel in a plurality of grouting grooves is connected by grouting pipe, and grouting pipe extends to both ends of processing layer, to grouting pipe at both ends of processing layer with anti-cracking mortar, so that grouting groove is filled with anti-cracking mortar, improve anti-cracking performance, and firmly connect outer wall and thermal insulation layer component, and grouting from both ends of processing layer will not damage the structure of thermal insulation layer, ensure that the structure and performance of thermal insulation layer are not affected.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to an insulation layer for the exterior walls of a residential building. Background Technology

[0002] To effectively reduce heat transfer and heat loss in residential buildings and maintain stable indoor temperatures, an insulation layer is usually installed on the exterior of the building's exterior walls. This insulation layer protects the exterior walls, providing waterproofing, moisture retention, damp-proofing, and corrosion protection, thus extending the lifespan of the exterior walls.

[0003] Chinese patent CN101864815 A discloses an external thermal insulation wall system anchored using a mechanical fixing device. It utilizes a leveling layer that also serves as a bonding layer on the base wall. First, a fiberglass mesh-reinforced polystyrene insulation board is bonded to the wall before the leveling layer dries, providing auxiliary connection and stability, and ensuring the flatness of the polystyrene board. Then, holes are drilled in the board surface, and plastic expansion bolts are used to directly fix the fiberglass mesh-reinforced polystyrene insulation board to the base wall, ensuring that the entire load of the external insulation system is borne by the fixing bolts and transferred to the base wall structure. The organic combination of the bolts and the reinforced polystyrene board also provides auxiliary stabilization for the load of the leveling layer on the base wall.

[0004] However, the external insulation wall provided by the above solution uses mechanical anchoring to fix the insulation layer and the external wall, which requires high precision in the construction process. If the construction is not done properly, it may affect the performance of the anchoring and the overall construction quality, and easily lead to cracking and detachment of the insulation layer. At the same time, the mechanical anchors passing through the insulation layer and connecting to the wall can cause the mechanical anchors to become thermal bridges, which not only damages the structure of the insulation layer, but also affects the thermal insulation performance of the insulation layer. Furthermore, the use of mechanical anchoring restricts the flexible deformation of the insulation layer, so that the bending deformation and stress concentration of the insulation layer under the action of temperature and humidity stress can easily cause cracking.

[0005] Therefore, how to effectively improve the connection stability between the insulation layer and the exterior wall, improve the crack resistance of the insulation layer, and ensure that the structure and performance of the insulation layer are not affected has become an urgent problem to be solved in this field. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a crack-resistant thermal insulation construction process for residential exterior walls that has a stable connection, good crack resistance, and does not affect the structure and performance of the insulation layer.

[0007] To achieve the above objectives, the present invention provides a construction process for a crack-resistant insulation layer on the exterior wall of a residential building, the construction process comprising:

[0008] Exterior wall construction: Level and lay out the foundation surface and / or floor surface to form the masonry axis of the exterior wall on the foundation wall and / or floor surface; prefabricate the support connectors extending from the outside of the masonry blocks, and then lay and arrange the masonry blocks in a staggered manner; set L-shaped iron pieces at the connection between the masonry blocks and the concrete structure and lay mortar to connect the masonry blocks and the concrete structure to form the exterior wall.

[0009] Construction of insulation layer components: The cross-section of the insulation layer components is adapted to the exterior wall, including a treatment layer, a moisture-proof layer, an insulation layer, and a finishing layer. Several grouting grooves are set on the first side of the treatment layer that mates with the exterior wall. Prefabricated overlapping connectors extending into the grouting grooves are installed in the treatment layer. These overlapping connectors are adapted to the supporting connectors in the exterior wall. Grouting cylinders are installed on the overlapping connectors. The grouting cylinders in the several grouting grooves are connected in series by grouting pipes, which extend to both ends of the treatment layer. A moisture-proof layer is then set on the second side of the treatment layer, connected to the treatment layer by a mesh fabric and crack-resistant mortar. A mesh fabric and crack-resistant mortar are then installed on the outside of the moisture-proof layer to connect to the insulation layer. A mesh fabric and crack-resistant mortar are then installed on the outside of the insulation layer to connect to the finishing layer.

[0010] Construction of connection between exterior wall and insulation layer components: Clean and level the exterior wall, lay crack-resistant mortar on the exterior wall, and place the overlapping connector of the treatment layer in the insulation layer component on the support connector of the exterior wall so that the insulation layer component is erected on the exterior wall as a whole, and the exterior wall and the treatment layer are in contact. Crack-resistant mortar is injected through the grouting pipes at both ends of the treatment layer so that the crack-resistant mortar fills each grouting groove from the grouting cylinder through the grouting pipe to connect the exterior wall and the insulation layer component.

[0011] Furthermore, after completing the grouting connection between the exterior wall and the insulation layer components, a sealing layer is installed at both ends of the treatment layer.

[0012] Furthermore, one or more rows of blocks spaced apart along the height of the outer wall are prefabricated with support connectors extending outward from the outer side of the blocks.

[0013] Furthermore, the grouting grooves are distributed along the height of the treatment layer, and their distribution positions correspond to the distribution positions of the support connectors on the external wall.

[0014] Furthermore, the overlapping connector is installed in the grouting groove and does not extend outside the grouting groove.

[0015] Furthermore, the length of the overlapping connector in the grouting groove and the length of the supporting connector extending out of the outer side of the exterior wall are adapted to the connection distance between the insulation layer component and the exterior wall, so that when the overlapping connector is laid on the supporting connector, the groove opening of the grouting groove and the treatment layer can abut against the exterior wall.

[0016] Furthermore, the supporting connectors in the exterior wall are composed of upwardly extending L-shaped steel bars, and the lap connectors in the treatment layer are composed of downwardly extending L-shaped steel bars that are adapted to the supporting connectors.

[0017] Furthermore, the outlet section of the grouting cylinder is located in the grouting tank, and the inlet section is located within the treatment layer.

[0018] Furthermore, the grouting pipes are laid within the treatment layer, with the inlet sections of several grouting cylinders connected in series.

[0019] Furthermore, before applying crack-resistant mortar to the exterior wall, the outer side of the exterior wall and the first side of the treatment layer are roughened.

[0020] The present invention provides a construction process for a crack-resistant insulation layer for residential exterior walls. This process involves prefabricating support connectors extending beyond the exterior wall. Simultaneously, several grouting grooves are provided in the treatment layer of the insulation layer components, and overlapping connectors extending into these grooves are prefabricated within the treatment layer. This allows the insulation layer components to be directly mounted on the support connectors of the exterior wall via the overlapping connectors, facilitating installation and improving construction efficiency. Furthermore, grouting cylinders are provided on the overlapping connectors, and these cylinders in the several grouting grooves are connected in series via grouting pipes extending to both ends of the treatment layer. Crack-resistant mortar is injected into the grouting pipes at both ends of the treatment layer, filling the grouting grooves with crack-resistant mortar, improving crack resistance, and firmly connecting the exterior wall and the insulation layer components. Moreover, grouting from both ends of the treatment layer does not damage the structure of the insulation layer, ensuring that the structure and performance of the insulation layer remain unaffected. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall construction of the connection between the insulation layer component and the exterior wall in this invention;

[0023] Figure 2 This is a schematic diagram of the exterior wall structure in this invention;

[0024] Figure 3 This is a schematic diagram of the structure of the insulation layer component in this invention;

[0025] Figure 4 This is a schematic diagram of the connection structure between the insulation layer component and the exterior wall in this invention;

[0026] Figure label:

[0027] 100. Exterior wall; 110. Supporting connectors;

[0028] 200. Insulation layer component; 210. Treatment layer; 211. First side; 212. Grouting groove; 213. Overlap connector; 214. Grouting cylinder; 215. Grouting pipe; 216. Second side; 217. Sealing layer; 220. Moisture-proof layer; 230. Insulation layer; 240. Finishing layer; 250. Mesh fabric. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0030] See Figure 1 The illustration shows an example of the crack-resistant and thermal insulation construction process for residential exterior walls provided by the present invention.

[0031] The crack-resistant and thermal insulation construction process of the residential exterior wall in this example mainly includes the construction of the exterior wall 100, the construction of the insulation layer component 200, and the connection construction between the exterior wall 100 and the insulation layer component 200.

[0032] Specifically, during exterior wall construction, the foundation surface and / or floor surface should be leveled and marked first. Before the exterior wall masonry construction, the foundation surface and / or floor structural surface should be leveled according to the elevation, the foundation wall and / or floor surface should be cleaned, moistened with water, and the axis, masonry edge line and opening line of the first course of blocks should be marked to form the masonry axis of the exterior wall, which facilitates the arrangement of blocks.

[0033] Before arranging the blocks, mortar needs to be mixed. For example, in this case, the masonry mortar is M7.5 cement mortar or M5 masonry mortar, and mechanical mixing is used. The mixing time is not less than 1.5 minutes.

[0034] Next, the blocks are arranged, and the blocks are divided into sections of a fixed size and marked within the exterior wall area. When arranging the blocks, the main specification blocks should be used as much as possible. For example, in this case, the main specification blocks should account for 75% to 80% of the total. At the same time, the upper and lower courses of blocks should be staggered, with the overlap length generally being: no less than 1 / 3 of the block length for aerated concrete blocks, and no less than 1 / 3 of the small block length for concrete hollow blocks, and not less than 90mm. During the construction of the exterior wall, at the corners of the exterior wall and the intersections of longitudinal and transverse walls, the blocks should be interlocked and staggered.

[0035] Further, see Figure 2 One or more rows of blocks distributed at intervals along the height direction of the outer wall 100 are prefabricated with support connectors 110 extending outward from the outer side of the blocks, so that a number of support connectors 110 are formed on the outer side of the outer wall 100, thereby connecting and cooperating the outer wall 100 with the insulation layer component 200 through the support connectors 110.

[0036] Next, L-shaped iron fittings are installed at the connection points between the masonry blocks and the concrete structure to improve the stability of the connection between the exterior wall and the concrete structure, such as concrete shear walls and concrete columns. Specifically, the L-shaped iron fittings are fixed to the concrete structure using a nail gun. One iron fitting is installed every two courses of masonry along the height of the exterior wall. For example, in this instance, the L-shaped iron fittings are fixed to the masonry blocks with three nails ≥50mm in length, and to the concrete columns and concrete shear walls with three nails ≥50mm in length. Furthermore, tie bars are installed in the exterior wall masonry blocks and extend throughout the entire length of the exterior wall.

[0037] The next step is to lay mortar on the blocks. The mixed mortar is transported to the exterior wall construction site by handcart or construction elevator. Before the blocks are in place, they are laid in sections with a large shovel. Preferably, the length of the mortar layer does not exceed 500mm and the mortar joint fullness is ≥80%.

[0038] Next, the blocks are positioned, aligned, and then further processed. The placement of the blocks should proceed from far to near, from top to bottom, and from outside to inside. Each layer should begin at a corner or the location of the initial block. During installation, blocks should be kept eccentric, allowing the bottom surface to fall horizontally and slowly. Alignment is achieved by gently prying with a small pry bar and then using a plumb line to ensure straightness and correctness. After each course of blocks is laid and aligned, vertical joints are filled with mortar, followed by sealing the mortar joints to a depth of 3-5 mm. Simultaneously, a 3-8 cm gap is preferably left between the top of the exterior wall and the bottom of the structural beams / slabs. This gap is sealed twice with dry-hardened mortar or fine-aggregate concrete after 14 days to form a structurally stable exterior wall.

[0039] After the construction of the exterior wall 100 is completed, in order to extend the service life of the exterior wall 100, an insulation layer component 200 needs to be installed on the outside of the exterior wall 100 to protect the exterior wall 100 and play a role in waterproofing, moisture retention, damp prevention and corrosion prevention. Therefore, the insulation layer component 200 needs to be constructed.

[0040] Among them, combined Figure 3 The insulation layer component 200 has a cross-section adapted to the exterior wall 100 and mainly includes a treatment layer 210, a moisture-proof layer 220, an insulation layer 230, and a finishing layer 240. The treatment layer 210 is located on the innermost layer of the insulation layer component 200 and is mainly used to connect and cooperate with the exterior wall 100. The finishing layer 240 is located on the outermost layer of the insulation layer component 200 and is used to decorate the outside of the exterior wall 100. The moisture-proof layer 220 and the insulation layer 230 are located between the treatment layer 210 and the finishing layer 240 to cooperate in providing moisture-proof and heat-insulating protection for the exterior wall 100.

[0041] Specifically, when constructing the insulation layer component 200, firstly, several grouting grooves 212 distributed along the height direction of the insulation layer component 200 are set on the first side 211 of the treatment layer 210 that mates with the outer wall 100. The distribution position of the grouting grooves 212 corresponds to the distribution position of the support connectors 110 on the outer wall 100, so that when the insulation layer component 200 is connected to the outer wall 100, the grouting grooves 212 can accommodate the support connectors 110 therein. Furthermore, overlapping connectors 213 extending into the grouting grooves 212 are prefabricated in the treatment layer 210, and the overlapping connectors 213 are adapted to the support connectors 110, so that the overlapping connectors 213 can be erected on the support connectors 110, and the insulation layer component 200 is erected on the outer wall 100.

[0042] Here, the support connector 110 in the exterior wall 100 is preferably composed of an upwardly extending L-shaped steel bar, and the lap connector 213 in the treatment layer 210 is preferably composed of a downwardly extending L-shaped steel bar that matches the support connector 100, so as to improve the stability of the lap connector 213 erected on the support connector 110.

[0043] Furthermore, the overlapping connector 213 is arranged in the grouting groove 212 without extending outside the grouting groove 212. The length of the overlapping connector 213 in the grouting groove 212 and the length of the support connector 110 extending out of the outer wall 100 are adapted to the connection distance between the insulation layer component 200 and the outer wall 100. This allows the grouting groove 212 and the treatment layer 210 to abut against the outer wall 100 when the insulation layer component 200 is overlapped on the support connector 110 of the outer wall 100 through the overlapping connector 213 in the treatment layer 210, thereby improving the tightness of the connection between the insulation layer component 200 and the outer wall 100.

[0044] To securely connect the insulation layer component 200 to the exterior wall 100, grouting cylinders 214 are installed on the overlapping connectors 213. The outlet section 2141 of the grouting cylinder 214 is located in the grouting groove 212, and the inlet section 2142 is located in the treatment layer 210. The grouting cylinders 214 on the overlapping connectors 213 in several grouting grooves 212 are connected in series by grouting pipes 215, and the grouting pipes 215 are extended to both ends of the treatment layer 210. Crack-resistant mortar is injected through the grouting pipes 215 at both ends of the treatment layer 210. The crack-resistant mortar enters several grouting cylinders 214 through the grouting pipes 215 and fills each grouting groove 212 with crack-resistant mortar, so that the insulation layer component 200 and the exterior wall 100 are connected by crack-resistant mortar. At the same time, grouting from both ends of the treatment layer 210 will not damage the structure of the insulation layer 230.

[0045] Next, a mesh fabric 250 and crack-resistant mortar are laid on the second side 216 of the treatment layer 210, and a moisture-proof layer 220 is placed on the second side 216 of the treatment layer 210 to connect the treatment layer 210 and the moisture-proof layer 220. Further, a mesh fabric 250 and crack-resistant mortar are laid on the outside of the moisture-proof layer 220, and a thermal insulation layer 230 is placed on the outside of the moisture-proof layer 220 to connect the moisture-proof layer 220 and the thermal insulation layer 230. Then, a mesh fabric 250 and crack-resistant mortar are laid on the outside of the thermal insulation layer 230, and a finishing layer 240 is placed on the outside of the thermal insulation layer 230 to connect the thermal insulation layer 230 and the finishing layer 240 to form a structurally stable thermal insulation layer component 200.

[0046] At the construction site, the connection construction of the exterior wall 100 and the insulation layer component 200 is carried out. First, the outside of the exterior wall 100 is cleaned and leveled, and residual dust, release agent oil stains and other debris and hollow areas of plaster are removed from the exterior wall 100. Then, the treatment layer 210 of the exterior wall 100 and the insulation layer component 200 is roughened to improve the surface roughness and adhesion of the exterior wall 100 and the treatment layer 210.

[0047] Before installing the insulation layer component 200, mortar needs to be mixed. For example, in this case, crack-resistant mortar is used to connect the exterior wall 100 and the insulation layer component 200 to improve the connection stability and crack resistance of the exterior wall 100 and the insulation layer component 200.

[0048] Next, crack-resistant mortar is laid on the exterior wall 100. The overlapping connector 213 of the treatment layer 210 of the insulation layer component 200 is placed on the support connector 110 of the exterior wall 100, and the groove of the grouting groove 212 and the treatment layer 210 are made to abut against the exterior wall 100. Figure 4 As shown, the insulation layer component 200 is thus erected on the outer wall 100, which is convenient for installation and improves construction efficiency.

[0049] Next, crack-resistant mortar is injected into the grouting pipes 215 laid at both ends of the treatment layer 210. The crack-resistant mortar is then introduced into several grouting cylinders 214 through the grouting pipes 215, and each grouting groove 212 is filled with crack-resistant mortar through the grouting cylinders 214, so that the insulation layer component 200 and the outer wall 100 are connected by crack-resistant mortar, thereby improving the tightness of the connection and crack resistance between the insulation layer component 200 and the outer wall 100.

[0050] After grouting is completed, a sealing layer 217 is laid at both ends of the treatment layer 210 to seal the grouting pipe 215, further improving the tightness of the connection between the insulation layer component 200 and the outer wall 100.

[0051] This completes the connection construction between the insulation layer component 200 and the exterior wall 100.

[0052] The present invention provides a construction process for a crack-resistant thermal insulation layer on a residential exterior wall. A support connector 110 extending beyond the exterior wall 100 is prefabricated within the exterior wall 100. Simultaneously, a plurality of grouting grooves 212 are provided in the treatment layer 210 of the insulation layer component 200, and overlapping connectors 213 extending into the grouting grooves are prefabricated within the treatment layer 210. This allows the insulation layer component 200 to be mounted on the support connector 110 of the exterior wall 100 via the overlapping connectors 213, facilitating installation and improving construction efficiency. Furthermore, the overlapping connectors 213... The 3 is equipped with a grouting cylinder 214. The grouting cylinders 214 in several grouting grooves 212 are connected in series by grouting pipes 215, and the grouting pipes 215 extend to both ends of the treatment layer 210 so as to inject crack-resistant mortar into the grouting pipes at both ends of the treatment layer 210, so that the grouting grooves 212 are filled with crack-resistant mortar, thereby improving crack resistance and firmly connecting the exterior wall 100 and the insulation layer component 200. Furthermore, grouting from both ends of the treatment layer 210 will not damage the structure of the insulation layer 230, ensuring that the structure and performance of the insulation layer 230 are not affected.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A construction process for a crack-resistant thermal insulation layer on the exterior wall of a residential building, characterized in that, The construction process includes: Exterior wall construction: Level and lay out the foundation surface and / or floor surface to form the masonry axis of the exterior wall on the foundation wall and / or floor surface; prefabricate the support connectors extending from the outside of the masonry blocks, and then lay and arrange the masonry blocks in a staggered manner; set L-shaped iron pieces at the connection between the masonry blocks and the concrete structure and lay mortar to connect the masonry blocks and the concrete structure to form the exterior wall. Construction of insulation layer components: The cross-section of the insulation layer components is adapted to the exterior wall, including a treatment layer, a moisture-proof layer, an insulation layer, and a finishing layer. Several grouting grooves are set on the first side of the treatment layer that mates with the exterior wall. Prefabricated overlapping connectors extending into the grouting grooves are installed in the treatment layer. These overlapping connectors are adapted to the supporting connectors in the exterior wall. Grouting cylinders are installed on the overlapping connectors. The grouting cylinders in the several grouting grooves are connected in series by grouting pipes, which extend to both ends of the treatment layer. A moisture-proof layer is then set on the second side of the treatment layer, connected to the treatment layer by a mesh fabric and crack-resistant mortar. A mesh fabric and crack-resistant mortar are then installed on the outside of the moisture-proof layer to connect to the insulation layer. A mesh fabric and crack-resistant mortar are then installed on the outside of the insulation layer to connect to the finishing layer. Construction of connection between exterior wall and insulation layer components: Clean and level the exterior wall, lay crack-resistant mortar on the exterior wall, and place the overlapping connector of the treatment layer in the insulation layer component on the support connector of the exterior wall so that the insulation layer component is erected on the exterior wall as a whole, and the exterior wall and the treatment layer are in contact. Crack-resistant mortar is injected through the grouting pipes at both ends of the treatment layer so that the crack-resistant mortar fills each grouting groove from the grouting cylinder through the grouting pipe to connect the exterior wall and the insulation layer component.

2. The construction process for the crack-resistant insulation layer of residential exterior walls according to claim 1, characterized in that, After the grouting connection between the exterior wall and the insulation layer components is completed, a sealing layer is installed at both ends of the treatment layer.

3. The construction process for the crack-resistant insulation layer of residential exterior walls according to claim 1, characterized in that, One or more rows of blocks spaced apart along the height of the exterior wall are prefabricated with support connectors extending outward from the outer side of the blocks.

4. The construction process for the crack-resistant insulation layer of residential exterior walls according to claim 3, characterized in that, The grouting trenches are distributed along the height of the treatment layer, and their distribution positions correspond to the distribution positions of the support connectors on the exterior wall.

5. The construction process for the crack-resistant insulation layer of residential exterior walls according to claim 4, characterized in that, The overlapping connector is installed in the grouting groove and does not extend outside the grouting groove.

6. The construction process for the crack-resistant insulation layer of residential exterior walls according to claim 5, characterized in that, The length of the lap joint in the grouting groove and the length of the support joint extending out of the outer side of the exterior wall are adapted to the connection distance between the insulation layer component and the exterior wall, so that when the lap joint is laid on the support joint, the groove opening of the grouting groove and the treatment layer can abut against the exterior wall.

7. The construction process for the crack-resistant insulation layer of residential exterior walls according to claim 6, characterized in that, The supporting connectors in the exterior wall are made of upward-extending L-shaped steel bars, and the lap connectors in the treatment layer are made of downward-extending L-shaped steel bars that are compatible with the supporting connectors.

8. The construction process for the crack-resistant insulation layer of residential exterior walls according to claim 1, characterized in that, The outlet section of the grouting cylinder is located in the grouting trench, and the inlet section is located in the treatment layer.

9. The construction process for the crack-resistant insulation layer of residential exterior walls according to claim 8, characterized in that, The grouting pipes are laid within the treatment layer, with the inlet sections of several grouting cylinders connected in series.

10. The construction process for the crack-resistant insulation layer of the exterior wall of a residential building according to claim 1, characterized in that, Before laying crack-resistant mortar on the exterior wall, roughen the outer side of the exterior wall and the first side of the treatment layer.

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