A cement precast panel component

Abstract

The utility model provides a kind of cement precast slab component, it is related to building wall water seepage prevention technical field, including component main board, limiting small column distributed in component main board inside, concave-convex structure distributed in the outside of component main board, screw mounting hole being arranged on component board, limiting small column, screw mounting hole coaxial arrangement, screw mounting hole is located on limiting small column.The utility model compared with prior art has realized completely avoided the waterproof layer surface support mode of poor adhesion, solves the construction technology common fault problem that can simultaneously ensure the adhesion between each structure layer and waterproof long-term reliable, improves the technical scheme of waterproof wall surface decoration construction quality, also provides the advantage that necessary construction condition can be provided for the waterproof layer that can be formed by the waterproof material with strong fluidity and permeability under wall surface pressure flow.

Description

Technical Field

[0001] This utility model relates to the field of waterproofing technology for building walls, and in particular to precast cement slab components. Background Technology

[0002] For walls requiring waterproofing, the decorative structure typically consists of a wall base layer, a leveling layer, a waterproofing layer, a bonding layer, and a block finishing layer, stacked from the inside out. The construction sequence is usually from the wall base layer to the block finishing layer, with each layer supported sequentially on the surface of the previous layer. This surface-bonded support method transfers the decorative load (self-weight, temperature stress, external forces, etc.) to the wall base layer layer by layer. This type of decorative wall structure places strong demands on the adhesion between layers. In waterproofing walls, a waterproofing layer is essential. The materials of the waterproofing layer and the adjacent leveling or bonding layer objectively differ, and the surface of the waterproofing layer after construction naturally exhibits some irregular smoothness. This surface smoothness can easily lead to insufficient adhesion between the waterproofing layer and adjacent structural layers. Under the influence of long-term alternating wet and dry conditions and seasonal temperature changes, the mismatch in shrinkage rates between the rigid adhesive and the flexible waterproofing layer generates stress, ultimately leading to common quality problems such as hollowing or detachment of the block finishing layer. Given the above situation, ensuring both stable adhesion between layers and reliable waterproofing has become a technical challenge in the construction of walls that require waterproofing. Summary of the Invention

[0003] The purpose of this invention is to provide a support method for waterproof layers that completely avoids poor adhesion, solves the common problem of construction technology that can simultaneously ensure the adhesion (support force transmission) between structural layers and the long-term reliability of waterproofing, improves the technical solution for waterproof wall decoration construction quality, and provides the necessary construction conditions for the use of waterproof materials with strong fluidity and permeability to form a waterproof layer under pressure on the wall surface.

[0004] The precast cement slab component of this utility model is implemented as follows:

[0005] It includes a main component, limiting posts distributed on the inner side of the main component, concave and convex structures distributed on the outer side of the main component, and screw mounting holes on the component plate. The limiting posts and screw mounting holes are coaxially arranged, and the screw mounting holes are located on the limiting posts.

[0006] The uneven structure on the outer side of the main component is made of cement-based material with a rough surface, which can fully integrate with the bonding layer used to bond to the block material finishing layer to form a good adhesion.

[0007] During construction, the precast concrete slab components are fixed to the wall base by screws passing through the screw mounting holes, forming a sandwich between the precast concrete slab components and the wall base. Then, a highly fluid and penetrating waterproof material is injected into the sandwich to form a cavity waterproof layer. The concave and convex structure on the outside of the main component can be connected to the block material finishing layer through a bonding layer.

[0008] Throughout the construction process, the decorative structure employs a load-bearing method that transfers loads from the wall base, mounting screws, precast cement slab components, bonding layer to the block finishing layer. This method utilizes mechanical or cement-based interlocking connections, resulting in a stable initial construction phase. The subsequent waterproofing layer is then applied under this stable condition. Therefore, the cavity waterproofing layer is only installed inside the cavity and does not participate in the load transfer between the inner and outer layers. This completely avoids the need for support methods on waterproofing layers with poor adhesion, preventing common quality problems such as hollowing or detachment of the block finishing layer.

[0009] Preferably, the inner side of the precast cement slab component is coated with a waterproof and permeable layer.

[0010] The inside of the precast concrete slab components is pre-sprayed or coated with a penetrating waterproof material, making its surface very smooth, water-repellent, and with low flow resistance. In conjunction with the wall substrate that has been pre-sprayed or coated with a penetrating waterproof material, the use of a highly fluid and penetrating waterproof material can provide the necessary construction conditions for forming a continuous waterproof layer under pressure on the wall surface. The highly fluid and penetrating waterproof material injected between the precast concrete slab components and the wall substrate forms a cavity waterproof layer under pressure. Under a certain pressure, it can fully fill all the gaps in the cavity, ensuring the construction quality of the waterproof layer.

[0011] This type of wall decoration structure and construction process solves the common problems of construction technology that can simultaneously ensure the adhesion (support and force transmission) between each structural layer and the long-term reliable waterproofing.

[0012] Compared with existing technologies, this utility model has the advantages of achieving a support method for waterproof layers that completely avoids poor adhesion, solving the common problem of construction technology that can simultaneously ensure the adhesion (support force transmission) between structural layers and the long-term reliability of waterproofing, improving the technical solution for waterproof wall decoration construction quality, and providing the necessary construction conditions for the use of waterproof materials with strong fluidity and permeability to form a waterproof layer under pressure on the wall. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the precast cement slab component of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the precast cement slab component of this utility model from another perspective;

[0015] Figure 3This is a schematic diagram of the wall waterproofing structure of this utility model.

[0016] Explanation of reference numerals: 1-Wall base layer; 2-Cavity waterproof layer; 3-Precast cement slab component; 301-Main board of component; 302-Limiting column; 303-Concave-convex structure; 304-Screw mounting hole; 4-Bonding layer; 5-Piece finishing layer; 6-Injection port fitting; 7-Outlet port fitting; 8-Screw; 9-Wall base waterproof penetration layer; 10-Waterproof penetration layer. Detailed Implementation

[0017] The precast cement slab component of this utility model will now be described in further detail with reference to the accompanying drawings and embodiments:

[0018] like Figure 1 , 2 As shown, the precast cement slab component of this utility model is implemented as follows:

[0019] It includes a main board 301, limiting posts 302 distributed on the inner side of the main board 301 (for support and stability), concave and convex structures 303 distributed on the outer side of the main board 301, and screw mounting holes 304 provided on the main board 301.

[0020] Preferably, the concave-convex structure 303 on the outer side of the main component 301 is made of cement-based material with a rough surface, which can be used to fully fuse with the bonding layer 4 to form a good adhesion when bonded to the block material finishing layer 5.

[0021] Preferably, the inner side of the precast cement slab component 3 is coated with a waterproof and permeable layer 10.

[0022] like Figure 3 As shown, during construction, the precast cement slab component 3 is fixed to the wall base 1, which has been sprayed or coated with a penetrating waterproof material to form a waterproof penetration layer 9, by screws 8 passing through screw mounting holes 304. This creates an interlayer between the precast cement slab component 3 and the wall base. Then, a highly fluid and penetrating waterproof material is injected into the interlayer through the injection port fitting 6 under the wall base 1. The vent fitting on the wall base 1 discharges the gas in the interlayer to form a cavity waterproof layer 2. The concave-convex structure 303 on the outside of the main component 301 can be connected to the block finishing layer 5 through the bonding layer 4.

[0023] When injecting a highly fluid and permeable waterproof material into the interlayer, an external waterproof and permeable layer is provided between the main component 301 of the precast cement slab component 3 and the block finishing layer 5.

[0024] The aforementioned external waterproofing penetration layer refers to the material constituting the cavity waterproofing layer 2 being injected, which penetrates into the gaps inside and outside of the precast concrete slab component 3, including the gaps in the concave-convex structure 303 on the outer side of the main component 301 and the screw mounting holes 304 on the main component 301, and is formed simultaneously with the injection of the cavity waterproofing layer 2 material into the interlayer of the cavity waterproofing layer.

Claims

1. A precast cement slab component, characterized in that, It includes a main component, limiting posts distributed on the inner side of the main component, concave and convex structures distributed on the outer side of the main component, and screw mounting holes set on the component plate. The limiting posts and screw mounting holes are coaxially arranged, and the screw mounting holes are located on the limiting posts.

2. The precast cement slab component according to claim 1, characterized in that, The uneven structure on the outer side of the main board of the component is made of cement-based material.

3. The precast cement slab component according to claim 1 or 2, characterized in that, A waterproof and permeable layer is applied to the inner side of the precast cement slab component.

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