Square sand self-adhesive waterproof patch without plugging for outer wall pull screw hole

Abstract

The application discloses a square self-adhesive waterproof patch with sand for outer wall screw hole without plugging, and belongs to the technical field of outer wall waterproofing in building engineering. The waterproof patch is a solid square patch without opening, and comprises a high-adhesion self-adhesive sealing bottom layer, a tensile reinforcement middle layer and a sand interface surface layer from bottom to top. The patch size is 60mm*60mm, and can be adapted to 14mm, 16mm and 18mm outer wall screw holes. During construction, the patch is only attached to the outer surface of the screw hole, and the screw hole is not filled, grouted or foamed, and does not need to be plugged. The self-adhesive glue of the bottom layer is tightly bonded to the concrete wall surface to realize hole sealing and waterproofing. The surface layer of quartz sand constructs a rough occlusion interface, and can be directly combined with outer wall decoration materials such as stone-like paint, real stone paint, plaster, ceramic tile glue and thermal decoration integrated plate, so as to avoid hollowing, delamination and cracking. The application simplifies the waterproof construction process of the screw hole, reduces labor input, is reliable in waterproof quality and is suitable for various outer wall decoration systems.

Description

Technical Field

[0001] This invention belongs to the field of building exterior wall waterproofing technology. Specifically, it is a square, sand-coated, self-adhesive waterproof patch for exterior wall tie rod holes that does not require sealing. Background Technology

[0002] According to Article 4.1.28 of GB 50108-2008 "Technical Specification for Waterproofing of Underground Engineering", all reinforcing bars or binding wires installed inside waterproof concrete structures must not come into contact with the formwork. When bolts used to fix the formwork must penetrate the concrete structure, tool bolts or bolts with plugs can be used, and square water-stop rings should be welded onto the bolts. After demolding, the remaining grooves should be sealed tightly with sealant and repaired with polymer cement.

[0003] Current national standards only make explicit requirements for the treatment of tie rod holes in underground engineering, and do not put forward mandatory treatment standards for tie rod holes in above-ground exterior walls.

[0004] Currently, the most common sealing method for tie rod holes in exterior walls is: 1. Fill the hole with materials such as micro-expansion mortar, foaming agent, and waterstop strip; 2. Apply waterproof coating or sealant to the outside.

[0005] Traditional techniques have the following defects and shortcomings: 1. The process of sealing the borehole is complicated, requires a large amount of manpower, and has low construction efficiency; 2. The tightness of the sealing inside the hole is difficult to guarantee, which can easily create leakage channels and cause potential water seepage in the exterior wall; 3. Conventional waterproof coatings have a smooth surface and poor adhesion to imitation stone paint, real stone paint, coatings, plaster layers, tile adhesives, etc., which easily leads to common quality problems such as hollowing, delamination, and cracking; 4. Different diameter screw holes require different treatment methods, resulting in poor versatility and high difficulty in on-site management and construction.

[0006] Therefore, the known methods of sealing tie rod holes in external walls have the aforementioned inconveniences and problems. Summary of the Invention

[0007] The purpose of this invention is to provide a safe and reliable square self-adhesive waterproof patch with sand for external wall tie rod holes that does not require sealing.

[0008] To achieve the above objectives, the technical solution of the present invention is: A square, sand-coated, self-adhesive, waterproof patch for external wall tie rod holes that requires no sealing, comprising a patch body, characterized in that: The patch body is a solid square sheet structure without a central opening. It has a three-layer composite structure, consisting of a high-adhesion self-adhesive sealing base layer, a tensile-reinforcing middle layer, and a sand-textured interface layer, arranged sequentially from the side facing the concrete wall outwards. The high-adhesion self-adhesive sealing base layer is made of butyl rubber or polymer self-adhesive, and a removable release film is provided on the side of the high-adhesion self-adhesive sealing base layer facing away from the tensile-reinforcing middle layer. The tensile-reinforcing middle layer is a polyester base or a non-woven fabric reinforcement layer. The sand-textured interface layer has quartz sand particles uniformly fixed to it.

[0009] 2. The square self-adhesive waterproof patch with sand for external wall tie rod holes that does not require sealing, as described in claim 1, is characterized in that the patch body has an external square size of 60mm×60mm.

[0010] 3. The square, sand-coated, self-adhesive waterproof patch for external wall tie rod holes as described in claim 1, characterized in that the patch body can fully cover and seal the openings of concrete external wall tie rod holes with diameters of 14mm, 16mm, and 18mm.

[0011] The square, sand-coated, self-adhesive waterproof patch for external wall tie rod holes that does not require sealing can also be further implemented using the following technical measures.

[0012] The aforementioned square, sand-coated, self-adhesive waterproof patch for unsealing tie rod holes in exterior walls, among which... After adopting the above technical solution, the square self-adhesive waterproof patch with sand for external wall tie rod holes of the present invention has the following advantages: 1. Zero internal hole preparation, extremely simple process. There is no need for processes such as sealing, grouting, and foaming inside the screw hole, which greatly simplifies the construction process, shortens the construction period, and reduces labor costs.

[0013] 2. One-piece universal multi-pore type The 60mm×60mm square solid patch can simultaneously cover and seal common screw holes of 14mm, 16mm, and 18mm, without the need to distinguish between specifications, making it extremely versatile.

[0014] 3. Integrated design with sandblasted surface It combines waterproofing and interface treatment functions, and the sand layer firmly bonds with various exterior wall decoration materials, preventing hollowing, delamination, and cracking.

[0015] 4. Fully sealed for reliable waterproofing. By relying on the sealing performance of the patch itself, water sources are blocked from the surface of the exterior wall, thus solving the common problem of leakage through bolt holes at the root.

[0016] 5. Simple construction and high degree of standardization The process requires only four steps: cleaning, tearing the film, aligning, and compacting. It is easy for workers to learn, less likely to be misaligned, and the construction quality is stable and controllable.

[0017] 6. Compatible with all exterior wall systems It is suitable for all exterior wall treatments, including imitation stone paint, real stone paint, latex paint, cement mortar plastering, exterior wall tiles, stone, and integrated insulation and decoration panels. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the patch usage state according to an embodiment of the present invention; Figure 2 for Figure 1 Side view.

[0019] In the diagram: 1. Exterior wall; 2. Tie rod hole; 3. Patch. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0021] Example 1 Please see now Figure 1 and Figure 2 The present invention provides a square, sand-coated, self-adhesive, waterproof patch structure for external wall tie rod holes that requires no sealing: The waterproof patch has a three-layer composite structure and is a solid square sheet with no central opening.

[0022] (1) Bottom layer: High-adhesion self-adhesive sealing layer: Material: Butyl rubber or polymer self-adhesive.

[0023] Function: It bonds strongly to the concrete exterior wall surface, forming a continuous and sealed waterproof layer, directly sealing the bolt hole opening and blocking the path of rainwater infiltration.

[0024] (2) Middle layer: Tensile reinforcement layer: Material: Polyester base or non-woven fabric reinforcement layer.

[0025] Function: To improve the overall mechanical properties of the patch, providing excellent tensile strength, deformation resistance, and crack resistance, thereby enhancing product durability and service life.

[0026] (3) Surface layer: Sandy interface layer: Material: Uniformly attached quartz sand particles.

[0027] Function: It forms a high-roughness interface, achieving super strong adhesion with various exterior wall decoration materials such as imitation stone paint, real stone paint, coatings, cement mortar, tile adhesive, and integrated insulation and decoration panels, without the need for additional interface treatment or roughening treatment, thus fundamentally avoiding the problem of hollowing.

[0028] The waterproof patch specifications and dimensions are as follows: (1) Shape: square.

[0029] (2) Dimensions: 60mm×60mm.

[0030] (3) Scope of application: It is applicable to tie rod holes with diameters of 14mm, 16mm, 18mm, etc.

[0031] (4) Structural features: solid whole piece, no openings, fully covered and sealed.

[0032] Example 2 The present invention provides a method for constructing square, sand-coated, self-adhesive waterproof patch for external wall tie rod holes that does not require sealing: 1. Clean the concrete surface around the screw hole, removing laitance, dust, and debris, and keep the base surface dry, clean, and firm; 2. Peel off the protective film on the back of the waterproof patch; 3. Align the center of the square patch with the screw hole, cover the entire patch and press it firmly, ensuring that the edges are tightly adhered to the wall without any curling or hollow areas; 4. After the patch is installed, subsequent exterior wall decoration work can proceed directly: (1) Imitation stone paint, real stone paint, coating system: directly apply putty, spray intermediate coat and topcoat; (2) Plastering and tile system: Direct plastering and tile pasting; (3) Thermal insulation and decoration integrated panel system: directly used as the base interface.

[0033] Throughout the entire construction process, the inside of the screw hole is not filled, grouted, foamed, or treated in any other way.

[0034] The above embodiments are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention. Therefore, all equivalent technical solutions should also fall within the scope of this invention and are defined by the claims.

Claims

1. A square, sand-coated, self-adhesive, waterproof patch for external wall tie rod holes that requires no sealing, comprising a patch body, characterized in that: The patch body is a solid square sheet structure without a central opening. It has a three-layer composite structure, consisting of a high-adhesion self-adhesive sealing base layer, a tensile-reinforcing middle layer, and a sand-textured interface layer, arranged sequentially from the side facing the concrete wall outwards. The high-adhesion self-adhesive sealing base layer is made of butyl rubber or polymer self-adhesive, and a removable release film is provided on the side of the high-adhesion self-adhesive sealing base layer facing away from the tensile-reinforcing middle layer. The tensile-reinforcing middle layer is a polyester base or a non-woven fabric reinforcement layer. The sand-textured interface layer has quartz sand particles uniformly fixed to it.

2. The square, sand-coated, self-adhesive waterproof patch for external wall tie rod holes as described in claim 1, characterized in that... The patch body has a square shape of 60mm × 60mm.

3. The square, sand-coated, self-adhesive waterproof patch for external wall tie rod holes as described in claim 1, characterized in that... The patch body can fully cover and seal the openings of tie rod holes in concrete exterior walls with diameters of 14mm, 16mm, and 18mm.

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