Layered waterproof structure for temporary preformed hole part of building roof

Abstract

The utility model discloses a layered waterproof structure for a temporary reserved hole part of a building roof face, which comprises a temporary hole formed in a concrete floor, a two-way steel bar with the diameter of 8mm is implanted in the inner wall of the temporary hole, a square water stop strip is arranged on the two-way steel bar, and filling concrete is arranged on the outer side of the water stop strip. The filling concrete is coated with an interface agent, the outer side of the interface agent is provided with a cement-based capillary crystalline waterproof coating, and the thinnest part is provided with C5.0 lightweight aggregate concrete with the thickness of 30; a non-cured rubber asphalt waterproof coating with the thickness of 3.0 mm, a viscous polymer modified asphalt waterproof coiled material with the thickness of 3.0 mm, an S20 cement mortar protective layer with the thickness of 10, an extruded polyethylene foam plastic heat preservation layer with the thickness of 100, a low-strength-grade mortar isolation layer with the thickness of 10 and a C20 fine aggregate concrete protective layer with the thickness of 40 are sequentially arranged on the outer side of the C5.0 lightweight aggregate concrete with the thickness of 3.0 mm. The characteristics and functions of different materials are combined, so that the waterproof performance and durability of the building or the structure are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a layered waterproof structure at the temporary reserved hole part of a building roof. Background Technique

[0002] The sealing treatment of the reserved hole in the floor slab generally includes: base treatment → steel bar treatment → formwork support → treatment of the hole edge → concrete plugging → concrete curing → formwork removal → grinding of the bottom of the slab → surface cleaning → brushing JS waterproof coating.

[0003] The above sealing process does not have efficient waterproof protection, has poor impermeability performance, and does not have heat preservation effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a layered waterproof structure at the temporary reserved hole part of a building roof in view of the deficiencies of the prior art, including a temporary hole opened in a concrete floor slab, wherein a two-way steel bar with a diameter of 8 mm is implanted in the inner wall of the temporary hole, a water stop strip in the shape of a square is arranged on the two-way steel bar, filling concrete is arranged outside the water stop strip, an interface agent is coated outside the filling concrete, a cement-based penetrating crystalline waterproof coating is arranged outside the interface agent, and a 30-mm-thick C5.0 lightweight aggregate concrete is arranged at the thinnest part. A 3.0-mm-thick non-curing rubber asphalt waterproof coating, a 3.0-mm-thick hundred-stick polymer modified asphalt waterproof coil, a 10-mm-thick S20 cement mortar protective layer, a 100-mm-thick extruded polystyrene foam plastic heat preservation layer, a 10-mm-thick low-strength grade mortar isolation layer and a 40-mm-thick C20 fine aggregate concrete protective layer are sequentially arranged outside the 30-mm-thick C5.0 lightweight aggregate concrete.

[0005] Preferably, an expansion agent is added to the filling concrete.

[0006] Preferably, a 1% slope layer is arranged on the surface of the C5.0 lightweight aggregate concrete.

[0007] Preferably, 6-mm steel bars and a two-way steel bar mesh are arranged in the C20 fine aggregate concrete protective layer.

[0008] Compared with the prior art, the beneficial effect of the utility model is that: through a multi-layer waterproof system, combining the characteristics and functions of different materials, the waterproof performance and durability of a building or structure are effectively improved. Description of the Drawings

[0009] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. They are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is a cross-sectional view of the utility model.

[0012] In the figure: 1. First steel pipe. 2. M12 bolt. 3. Stainless steel hinge. 4. Second steel pipe. 5. Steel mesh. 6. Concrete wall. 7. Pin head. DETAILED DESCRIPTION

[0013] The technical solution of the utility model is described in detail below with reference to the accompanying drawings, but the protection scope of the utility model is not limited to the embodiments.

[0014] Reference Figure 1 and Figure 2 The utility model discloses a layered waterproof structure for a temporary reserved hole on a building roof, including a temporary hole 2 opened on a concrete floor slab 1, wherein a bidirectional steel bar 3 with a diameter of 8 mm is implanted in the inner wall of the temporary hole, and a water stop strip 4 in the shape of a Chinese character is placed on the implanted steel bar to make it close to the outer wall of the temporary reserved hole, and a circle of Chinese-shaped rubber water stop strips 4 is added on the original basis to better control leakage problems. The utility model also includes filling concrete 5, which is one grade higher and has an expansion agent added, and a 1.5 mm thick interface agent 6 is made around the temporary reserved hole (the range of the line opening is 1.5 mm). 500cm), 1.5mm thick cement-based penetrating crystallization waterproof coating 7, 30mm thick C5.0 lightweight aggregate concrete 8 at the thinnest point and 1% slope layer, 3.0mm thick non-curing rubber asphalt waterproof coating 9, 3.0mm thick polymer modified asphalt waterproof membrane 10, 10mm thick S20 cement mortar protective layer 11, 100mm thick extruded polyethylene foam plastic insulation layer 12, 10mm thick low-strength grade mortar isolation layer 13, 40mm thick C20 fine stone concrete protective layer 14, with 6mm steel bidirectional @150 steel mesh.

[0015] The utility model adopts a multi-layer superposition composite waterproof system with the following advantages:

[0016] Highly efficient waterproofing: A multi-layered waterproofing system is adopted, each layer has a specific waterproofing function, and the overlapping layers can form highly efficient waterproofing protection, effectively preventing water penetration.

[0017] Strong durability: Through the combination of different materials, the durability and stability of the waterproof layer can be increased, its service life can be extended, and maintenance and repair costs can be reduced.

[0018] Good anti-penetration performance: The use of special materials such as interface agents, expansion agents, and penetrating crystallization waterproof coatings can form microscopic crystals in the waterproof layer, fill in tiny cracks, and improve anti-penetration performance.

[0019] Structural stability: By placing reinforcement materials such as steel bars at different levels, the stability and load-bearing capacity of the structure can be enhanced, reducing the risk of structural damage caused by moisture intrusion.

[0020] Thermal insulation effect: A foam plastic insulation layer is set in the waterproof system, which can provide good thermal insulation effect, reduce energy consumption and improve the energy efficiency performance of the building.

[0021] Isolation effect: The isolation layer is set up to effectively isolate the deformation and stress transfer between different materials and reduce the damage caused by material deformation.

[0022] The multi-layered composite waterproof system not only provides efficient waterproof protection, but also has multiple advantages such as strong durability, stable structure and good thermal insulation effect.

[0023] As above, although the utility model has been shown and described with reference to a specific preferred embodiment, it should not be interpreted as limiting the utility model itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the utility model defined in the attached claims.

Claims

1. A layered waterproof structure for temporary reserved holes on a building roof, comprising a temporary hole opened on a concrete floor slab, characterized in that: The inner wall of the temporary opening is implanted with bidirectional steel bars with a diameter of 8 mm, and a U-shaped water stop strip is arranged on the bidirectional steel bar. Filling concrete is arranged on the outside of the water stop strip, and the filling concrete is coated with an interface agent. The outside of the interface agent is provided with a cement-based penetrating crystalline waterproof coating, and a 30 mm thick C5.0 lightweight aggregate concrete is arranged at the thinnest point. The outside of the thick C5.0 lightweight aggregate concrete is sequentially provided with a 3.0 mm thick non-curing rubber asphalt waterproof coating, a 3.0 mm thick polymer modified asphalt waterproof membrane, a 10 mm thick S20 cement mortar protective layer, a 100 mm thick extruded polyethylene foam plastic insulation layer, a 10 mm thick low-strength grade mortar isolation layer and a 40 mm thick C20 fine stone concrete protective layer.

2. The layered waterproof structure for temporary reserved holes on a building roof according to claim 1, characterized in that: An expansion agent is added into the filling concrete.

3. The layered waterproof structure for temporary reserved holes on a building roof according to claim 2, characterized in that: The C5.0 lightweight aggregate concrete is provided with a 1% slope leveling layer on the surface.

4. The layered waterproof structure for temporary reserved holes on a building roof according to claim 3, characterized in that: The C20 fine stone concrete protective layer is provided with 6mm steel bars and bidirectional steel mesh.

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