A wall rock wool board thermal insulation structure

Abstract

The utility model belongs to the external wall heat preservation technical field, concretely is a kind of wall rock wool board heat preservation structure, including base layer wall, is sequentially provided with bonding mortar layer, rock wool board, anti-cracking mortar hard layer and trowelling mortar layer outward along the base layer wall, anchor is arranged on the anti-cracking mortar hard layer, the anchor passes through anti-cracking mortar hard layer, rock wool board, bonding mortar layer and extends to the base layer wall inside.Compared with prior art, the utility model is first trowelled anti-cracking mortar hard layer after rock wool heat preservation board construction is completed, after it coagulates and hardens, fixed part is punched, and rock wool heat preservation board is anchored.Again, trowelling layer is trowelled on the hardened anti-cracking mortar, effectively solve the uneven problem of rock wool heat preservation board overall surface layer wall surface.

Description

Technical Field

[0001] This utility model belongs to the field of external wall insulation technology, specifically a wall rock wool board insulation structure. Background Technology

[0002] In the construction of building exterior wall insulation systems, when rock wool boards are used as insulation materials, wall quality problems often arise due to improper anchoring techniques. The currently common construction process involves first bonding the rock wool boards and then directly fixing them mechanically with anchors. This seemingly conventional approach actually conceals significant technological flaws.

[0003] Specifically, when anchors penetrate the bonding layer and are driven directly into the base wall, the rock wool board itself has porous structure and low compressive strength (typically only 40-60 kPa). Under the impact of the metal anchors, localized compressive deformation occurs at the interface between the board and the bonding mortar. Experimental data shows that an 8mm diameter anchor, under normal tightening torque (approximately 40 N·m), will form a conical depression area 3-5mm deep and 15-20mm in diameter on the surface of the rock wool board. This micro-deformation may not be obvious on a single board, but when hundreds of anchor points are concentrated on an entire wall, it forms a regularly occurring uneven surface.

[0004] More seriously, this uneven settlement can trigger a chain reaction: First, the depression in the anchoring area results in insufficient thickness of the plastering mortar leveling layer, making it difficult to achieve surface leveling through conventional troweling techniques; second, the difference in height between the unaffected areas and the depressed areas creates a noticeable shadow effect under lighting conditions; ultimately, this leads to a "pockmarked" unevenness on the overall wall surface, which not only affects the flatness acceptance standards of the building facade (usually requiring a flatness deviation of ≤4mm / 2m), but also directly damages the visual effect of the exterior wall decoration layer.

[0005] In view of the above, this utility model is hereby proposed. Utility Model Content

[0006] The purpose of this section is to provide a wall rock wool board insulation structure that solves the technical problems mentioned in the background section.

[0007] The present invention adopts the following technical solution:

[0008] A wall insulation structure with rock wool board includes a base wall, and an adhesive mortar layer, a rock wool board, a crack-resistant mortar hard layer and a finishing mortar layer are arranged sequentially outward from the base wall. Anchors are provided on the crack-resistant mortar hard layer, and the anchors extend into the base wall through the crack-resistant mortar hard layer, the rock wool board and the adhesive mortar layer.

[0009] Preferably, the thickness of the crack-resistant mortar hard layer is 5 mm.

[0010] Preferably, a fiberglass mesh is pressed into the crack-resistant mortar hard layer.

[0011] Preferably, the fiberglass mesh is staggered and overlapped.

[0012] Preferably, the anchors are located at the four corners and the center of the rock wool board.

[0013] Preferably, the anchor extends into the base wall to a depth of at least 25 mm.

[0014] Preferably, when the height above the horizontal ground is greater than 6m, the number of anchors is greater than 8 per square meter; when the height above the horizontal ground is less than 6m, the number of anchors is greater than 6 per square meter.

[0015] Preferably, the finishing mortar layer includes a first finishing mortar layer and a second finishing mortar layer;

[0016] The first plastering mortar layer is connected to the crack-resistant mortar hard layer.

[0017] Preferably, the thickness of the first plastering mortar layer is 2-3 mm, and an alkali-resistant mesh is pressed into the first plastering mortar layer.

[0018] Preferably, the thickness of the second plastering mortar layer is 3-5mm, and a mesh cloth is pressed into the second plastering mortar layer.

[0019] Compared with existing technologies, this invention, after the rock wool insulation board is installed, first applies a layer of crack-resistant mortar as a hard layer. After it hardens, fasteners are driven in to anchor the rock wool insulation board. Then, a surface layer is applied on the hardened crack-resistant mortar, effectively solving the problem of unevenness on the overall wall surface of the rock wool insulation board.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a wall rock wool board insulation structure provided for an embodiment of the present utility model.

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] 1. Base wall; 2. Adhesive mortar layer; 3. Rock wool board; 4. Crack-resistant mortar hard layer; 5. Anchors; 6. First plastering mortar layer; 7. Second plastering mortar layer. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Please see Figure 1 The present invention provides a wall insulation structure of rock wool board 3, which includes a base wall 1. An adhesive mortar layer 2, rock wool board 3, crack-resistant mortar hard layer 4 and plastering mortar layer are arranged sequentially outward from the base wall 1. Anchors 5 are provided on the crack-resistant mortar hard layer 4. The anchors 5 extend into the base wall 1 through the crack-resistant mortar hard layer 4, rock wool board 3 and adhesive mortar layer 2.

[0026] In a preferred embodiment of this invention, the thickness of the crack-resistant mortar hard layer 4 is 5 mm. A fiberglass mesh is pressed into the crack-resistant mortar hard layer 4. The fiberglass mesh is staggered and overlapped.

[0027] The anchors 5 are located at the four corners and the center of the rock wool board 3. The anchors 5 extend into the base wall 1 to a depth of at least 25mm. When the height from the horizontal ground is greater than 6m, the number of anchors 5 is greater than 8 per square meter; when the height from the horizontal ground is less than 6m, the number of anchors 5 is greater than 6 per square meter. The finishing mortar layer includes a first finishing mortar layer 6 and a second finishing mortar layer 7; the first finishing mortar layer 6 is connected to the crack-resistant mortar hard layer 4. The first finishing mortar layer 6 is 2-3mm thick, and an alkali-resistant mesh is pressed into it. The second finishing mortar layer 7 is 3-5mm thick, and a mesh is pressed into it.

[0028] The specific construction process of this utility model is as follows:

[0029] 1. Mark lines and hang baselines

[0030] Horizontal and vertical control lines are marked on the wall to ensure that the rock wool boards are arranged neatly.

[0031] Hang vertical reference lines at the inside and outside corners of the building's exterior walls to control verticality.

[0032] 2. Adhere the rock wool board

[0033] Bonding mortar preparation: Add water according to the manufacturer's ratio, stir, let stand for 5 minutes, stir again before use (use within 2 hours).

[0034] Paste method:

[0035] (1) Dot frame method: Apply a 50mm wide adhesive mortar frame around the back of the rock wool board, and evenly distribute 6-8 adhesive dots with a diameter of 100mm in the middle. Leave an air vent in the middle of the top of the board, with a coverage rate of ≥60%.

[0036] (2) Strip bonding method: Use a notched trowel to scrape strips of mortar on the board surface. Each board should have at least two strips bonded to the base layer, and each strip should be at least 150mm wide. This method is suitable for base layers with high flatness.

[0037] (3) Full adhesion method construction

[0038] Apply the adhesive evenly to the insulation board, ensuring the mortar completely covers the bonding side of the insulation board. The bonding area between the rock wool board and the base wall should reach 100%.

[0039] Pasting order: From bottom to top, lay the tiles horizontally with staggered joints (vertical joints staggered by ≥200mm), and make "staggered" treatment at corners.

[0040] Joint treatment: The gap between boards should be ≤2mm. If the gap exceeds the tolerance, rock wool strips should be used to fill it. Mortar filling is strictly prohibited.

[0041] 3.5mm thick rock wool board crack-resistant mortar hard layer

[0042] Time: 24 hours after the rock wool boards are pasted (after the bonding mortar has cured).

[0043] Method: Apply crack-resistant mortar, level it with a screed, and then press in fiberglass mesh (overlap of the mesh seams ≥15cm).

[0044] 4. Install anchors

[0045] Time: 24 hours after the crack-resistant mortar hard layer is completed (crack-resistant mortar has cured).

[0046] Number of anchors:

[0047] Wall height ≤ 60m: ≥ 6 units / ㎡;

[0048] Height > 60m: ≥ 8 units / ㎡.

[0049] Installation location: four corners and center of rock wool board. The anchor disc must be pressed tightly against the surface of the rock wool board. The anchor depth into the wall should be ≥25mm (concrete base) or ≥50mm (masonry base).

[0050] 5. Plastering layer construction

[0051] First layer of finishing mortar: approximately 2-3mm thick, immediately press in alkali-resistant mesh fabric.

[0052] Standard mesh: laid horizontally, with an overlap width of ≥100mm, and a bidirectional wrap around the corner of ≥200mm.

[0053] Reinforced mesh: Used for impact-prone areas such as the ground floor and door / window openings (e.g., below 2m from the ground).

[0054] Second layer of finishing mortar: Cover with mesh cloth, with a total thickness of 3-5mm, and the surface is smooth without mesh texture.

[0055] 6. Treatment of special areas

[0056] Door and window openings: Rock wool board is attached to the edge of the opening, and a 300×400mm standard mesh is added at a 45° angle.

[0057] Inside and outside corners: Rock wool boards are installed in an "interlocking" manner, with additional double-layer mesh reinforcement.

[0058] Where pipes pass through walls: leave an opening for insulation board and fill the gap with elastic sealant.

[0059] This invention addresses the problem of uneven wall surfaces after the rock wool insulation board is installed, resulting in localized depressions at the anchoring points. After the rock wool insulation board is installed, a layer of crack-resistant mortar is first applied to harden and solidify. Then, fasteners are driven in to anchor the rock wool insulation board. Finally, a surface layer is applied over the hardened crack-resistant mortar, effectively resolving the issue of unevenness on the overall wall surface caused by the rock wool insulation board.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0061] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0062] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures.

Claims

1. A wall rock wool board insulation structure, characterized in that, The system includes a base wall, and along the base wall, a bonding mortar layer, a rock wool board, a crack-resistant mortar hard layer, and a finishing mortar layer are sequentially arranged outwards. Anchors are installed on the crack-resistant mortar hard layer, and the anchors extend through the crack-resistant mortar hard layer, the rock wool board, and the bonding mortar layer into the base wall.

2. The wall rock wool board insulation structure according to claim 1, characterized in that, The thickness of the crack-resistant mortar hard layer is 5 mm.

3. The wall rock wool board insulation structure according to claim 2, characterized in that, A fiberglass mesh is pressed into the crack-resistant mortar hard layer.

4. The wall rock wool board insulation structure according to claim 3, characterized in that, The fiberglass mesh is staggered and overlapped.

5. A wall rock wool board insulation structure according to claim 4, characterized in that, The anchors are located at the four corners and the center of the rock wool board.

6. The wall rock wool board insulation structure according to claim 5, characterized in that, The anchor extends into the base wall to a depth of at least 25 mm.

7. A wall rock wool board insulation structure according to claim 6, characterized in that, When the height above the horizontal ground is greater than 6m, the number of anchors is greater than 8 per square meter; when the height above the horizontal ground is less than 6m, the number of anchors is greater than 6 per square meter.

8. A wall rock wool board insulation structure according to claim 7, characterized in that, The finishing mortar layer includes a first finishing mortar layer and a second finishing mortar layer; The first plastering mortar layer is connected to the crack-resistant mortar hard layer.

9. A wall rock wool board insulation structure according to claim 8, characterized in that, The thickness of the first plastering mortar layer is 2-3mm, and an alkali-resistant mesh is pressed into the first plastering mortar layer.

10. A wall rock wool board insulation structure according to claim 9, characterized in that, The second finishing mortar layer is 3-5mm thick, and a mesh fabric is pressed into the second finishing mortar layer.

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