Structure for waterproof sealing and structure decay inhibition of building deformation joint

Abstract

The utility model discloses a structure for building deformation joint waterproof sealing and structure decay inhibition, which comprises a special waterproof sealing component, the special waterproof sealing component comprises a macromolecule waterproof sheet and a section bar sheet, and the section bar sheet is compounded on the macromolecule waterproof sheet. The special waterproof fixing and sealing component is formed by compositing the profile sheet on the polymer waterproof sheet, and is adhered and fixed on the upward or downward two sides of the building deformation joint, the two sides of the upstream face or the downstream face or the structural entities of one side of the plane and one side of the vertical face by matching with the base surface of the profile sheet through a special adhesive, so that the construction is convenient, the cost is low, and the construction efficiency is high. And meanwhile, the lap joint strength is effectively improved, the adaptability is wider, the durability is more reliable, construction, maintenance and overhaul are more convenient and easier, water can be prevented from being accumulated and diffused in the deformation joint structure, the effect of inhibiting structure decay can be achieved, a foundation is laid for achieving structure and construction self-waterproofing of a building, and meanwhile a guarantee is provided for high-quality development of the building.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a structure for waterproofing and sealing building expansion joints and inhibiting structural decay. Background Technology

[0002] To accommodate thermal expansion and contraction caused by temperature changes, and to meet earthquake resistance and foundation settlement requirements, building roofs are fitted with expansion joints during construction. These expansion joints come in various forms and prevent structural breakage due to temperature deformation or natural settlement. However, expansion joints can also pose leakage problems because the gaps make them prone to seepage. To avoid this, waterproofing material is laid at the expansion joints to prevent water damage.

[0003] In existing technologies, the construction of building expansion joints mainly uses asphalt-based polyester waterproof membranes as the covering waterproof membrane for building expansion joints, which has the advantages of simple and convenient construction. However, asphalt-based polyester waterproof membranes use self-adhesive or hot-melt overlap, resulting in low overlap strength. In addition, the asphalt-based polyester waterproof membrane itself cannot be exposed, has poor aging resistance, and a short service life.

[0004] Modern building construction increasingly incorporates integrated professional systems, leading to more complex and diverse structures for building expansion joints and higher requirements for their waterproofing and sealing quality. However, current waterproofing measures for building expansion joints are unsatisfactory in terms of durability and reliability, and are difficult to maintain and repair, easily leading to building deterioration. Therefore, it is necessary to improve and refine the general construction methods and techniques for building expansion joints, developing sealing structures and methods that are more adaptable, more durable, and easier to construct and maintain.

[0005] To address this, the inventors have developed a prefabricated waterproof sealing component for expansion joints, "composed of polymer waterproof sheets and profile sheets." This prefabricated component significantly optimizes the structure and construction method of expansion joint waterproof sealing, saving materials, facilitating construction, and ensuring more stable and reliable waterproof sealing quality. It also facilitates inspection and replacement. Furthermore, this prefabricated waterproof sealing component is not only suitable for concrete structural expansion joints but can also be used to waterproof and seal expansion joints on substrates including, but not limited to, glass, profiles, and stone. In addition, this invention considers the prevention and control of water accumulation and diffusion within building expansion joints, thus inhibiting building and structural degradation. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a structure for waterproofing and sealing building expansion joints and inhibiting structural decay, which can effectively solve the problems of low overlap strength and poor durability of existing waterproofing structures for building expansion joints.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A structure for waterproofing and sealing building expansion joints and inhibiting structural decay includes a special waterproofing and sealing component. The special waterproofing and sealing component includes a polymer waterproof sheet and a profile sheet. The profile sheet is composited on the polymer waterproof sheet. The base surface of the profile sheet is glued and fixed to the two sides of the building expansion joint, facing upward or downward, on the water-facing side or the back side, or on one side of the plane and one side of the elevation, using a special adhesive.

[0009] As a preferred embodiment, the polymer waterproof sheet is a TPO or PVC waterproof sheet with a thickness of 0.8 to 2.0 mm, and the profile sheet is a long strip of galvanized steel sheet, aluminum alloy sheet or stainless steel sheet with a thickness of 0.6 to 2.0 mm and a width of 20 to 50 mm.

[0010] As a preferred embodiment, the special waterproof sealing component is elongated and has a width of 150-500mm. There are two of these profiles, which are respectively bonded to the back sides of the polymer waterproof sheet.

[0011] As a preferred embodiment, the profile sheet has multiple holes arranged at intervals along the length of the profile sheet for the penetration of a special adhesive, with the diameter of the holes being 5.0 to 8.0 mm.

[0012] As a preferred embodiment, the special adhesive is a polymer-specific mortar or a cement-based adhesive for bonding steel structures.

[0013] As a preferred embodiment, the profile sheet is a galvanized steel sheet with a width of 30-40mm, which is mechanically stamped to have flat surfaces with a width of 10-15mm on both sides, while the middle is stamped to form a perforated mesh with a width of 8-25mm.

[0014] As a preferred embodiment, the outer edge of the dedicated waterproof sealing component is sealed with waterproof sealant or waterproof sealing tape between itself and the structural entity.

[0015] As a preferred embodiment, the surface of the concrete structure is flat, and the surface of the concrete structure is provided with a waterproof, seepage-proof, and anti-corrosion coating, with the special adhesive covering the surface of the waterproof, seepage-proof, and anti-corrosion coating.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] By laminating profile sheets onto polymer waterproof sheets to form specialized waterproof sealing components, and then using a special adhesive to bond and fix these components to the base surface of the profile sheets on both sides of the building expansion joint, facing upwards or downwards, on the water-facing or backwater side, or on one side of the planar and vertical surfaces, the construction is convenient and cost-effective. It also effectively improves lap strength, has wider adaptability, more reliable durability, and is easier to construct, maintain, and repair. It prevents water from accumulating and spreading within the expansion joint structure, inhibiting structural deterioration and laying the foundation for self-waterproofing of the building structure and construction, while also providing a guarantee for high-quality building development.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the first type of special waterproof sealing component according to a preferred embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the second type of special waterproof sealing component according to a preferred embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the first structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed between horizontal expansion joints;

[0022] Figure 4 This is a schematic diagram of a second structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed between horizontal expansion joints;

[0023] Figure 5 This is a schematic diagram of a third structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed between horizontal expansion joints;

[0024] Figure 6 This is a schematic diagram of the fourth structural design of the preferred embodiment of the present invention, in which the special waterproof sealing component is installed between horizontal expansion joints;

[0025] Figure 7 This is a schematic diagram of the first structural design of the compartmentalized and splicing seams of the special waterproof sealing component according to a preferred embodiment of this utility model;

[0026] Figure 8 yes Figure 7 A partial front view;

[0027] Figure 9 This is a schematic diagram of the second structural design of the compartmentalized and splicing seams of the special waterproof sealing component according to a preferred embodiment of this utility model;

[0028] Figure 10 yes Figure 9 A partial front view;

[0029] Figure 11 This is a schematic diagram of the first structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed between expansion joints in an exterior wall;

[0030] Figure 12 This is a schematic diagram of a second structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed between expansion joints in an exterior wall;

[0031] Figure 13 This is a schematic diagram of the first structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed between expansion joints in a wall.

[0032] Figure 14 This is a schematic diagram of a second structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed between expansion joints in a wall.

[0033] Figure 15 This is a schematic diagram of a third structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed between expansion joints in a wall.

[0034] Figure 16 This is a schematic diagram of the fourth structural design of the preferred embodiment of the present invention, in which the special waterproof sealing component is installed between the expansion joints of the wall;

[0035] Figure 17 This is a schematic diagram of a first structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed on profiles, glass, stone, or wood.

[0036] Figure 18 This is a schematic diagram of a second structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed on profiles, glass, stone, or wood.

[0037] Figure 19 This is a schematic diagram of a third structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed on profiles, glass, stone, or wood.

[0038] Figure 20 This is a schematic diagram of a fourth structural design of a preferred embodiment of the present invention, in which a special waterproof sealing component is installed on profiles, glass, stone, or wood.

[0039] Explanation of reference numerals in the attached diagram:

[0040] 10. Special waterproof sealing components 11. Polymer waterproof sheets

[0041] 12. Profile sheet 13. Special sealant

[0042] 101. Hole; 102. Overlap seam

[0043] 20. Special adhesive 31. Structural entity

[0044] 311. Columns; 312. Masonry

[0045] 313. Waterproof, seepage-proof, and corrosion-resistant coating; 314. First concrete structure.

[0046] 315. Second concrete structure; 316. Masonry structure

[0047] 317. Waterproof, seepage-proof, and corrosion-resistant coating; 318. Profiles, glass, stone, or wood.

[0048] 319. Waterproof, seepage-proof, and anti-corrosion coating; 32. Waterproof, seepage-proof, and anti-corrosion coating.

[0049] 33. Roofing; 34. Waterproof, seepage-proof, and corrosion-resistant coating

[0050] 301. Building expansion joint; 302. Water-facing side.

[0051] 303, back side 40, foam board

[0052] 50. Waterproof sealant or waterproof sealing tape 51. Waterproof sealant or waterproof sealant

[0053] 52. Anchor bolt 53. Anchor bolt

[0054] 54. Waterproof sealant or waterproof sealing tape 55. Waterproof sealant or waterproof sealing tape

[0055] 56. Waterproof sealant or waterproof sealing tape. Detailed Implementation

[0056] Please refer to Figures 1 to 20 As shown, it illustrates the specific structure of a preferred embodiment of the present invention for waterproofing and sealing building expansion joints and inhibiting structural decay, including a dedicated waterproofing and sealing component 10.

[0057] The special waterproof sealing component 10 includes a polymer waterproof sheet 11 and a profile sheet 12; the profile sheet 12 is composited on the polymer waterproof sheet 11, and the base surface of the profile sheet 12 is bonded and fixed to the two sides of the building expansion joint 301 facing upward or downward, water-facing or water-backing side, or one side of the plane and one side of the elevation by a special adhesive 20.

[0058] In this embodiment, the dedicated waterproof sealing component 10 is elongated, with a width of 150-500mm. The polymer waterproof sheet 11 is a TPO or PVC waterproof sheet with a thickness of 0.8-2.0mm, and the profile sheet 12 is a galvanized steel sheet, aluminum alloy sheet, or stainless steel sheet with a thickness of 0.6-2.0mm and a width of 20-50mm, in an elongated shape. Preferably, the profile sheet 12 is a galvanized steel sheet 30-40mm wide, mechanically stamped, with 10-15mm wide flat surfaces on both sides, and a perforated mesh (not shown) 8-25mm wide formed in the middle, resulting in low cost and a stable structure. Furthermore, there are two profile sheets 12, each composited on the back of the polymer waterproof sheet 11 on both sides. Additionally, as... Figure 2 As shown, the profile sheet 12 has a plurality of holes 101 arranged at intervals along the length of the profile sheet 12 for the special adhesive 20 to penetrate. The diameter of the holes 101 is 5.0 to 8.0 mm, and the holes 101 extend to the front side of the polymer waterproof sheet 11 to improve the adhesion between the special waterproof sealing component 10 and the structural entity 31.

[0059] The special adhesive 20 is a polymer-specific mortar or cement-based adhesive for bonding steel structures. It bonds firmly to the structural entity 31 and has good waterproof properties.

[0060] like Figure 3 As shown, both structural entities 31 are concrete structures. The building expansion joint 301 is a horizontal expansion joint, and a foam board 40 is bonded and filled within the expansion joint 301 using foam adhesive. The foam board 40 is bonded and fixed to the bottom surface of the polymer waterproof sheet 11 using foam adhesive. The base surface of the profile sheet 12 is adhered and fixed to the downward-facing structural entities 31 on both sides of the building expansion joint 301 using a special adhesive 20.

[0061] like Figure 4 As shown, its specific structure is similar to Figure 3 They are basically the same, except that the outer edge of the special waterproof sealing component 10 is sealed with waterproof sealant or waterproof sealing tape 50 between it and the structural entity 31 to greatly enhance the waterproof performance.

[0062] like Figure 5 As shown, its specific structure is similar to Figure 3 The two structures are basically the same, except that the surface of the concrete structure 31 is pre-polished to achieve a smooth and solid finish, and a waterproof, seepage-proof and corrosion-resistant coating 32 is provided on the surface of the concrete structure 31. The special adhesive 20 is applied to the surface of the waterproof, seepage-proof and corrosion-resistant coating 32 to enhance the waterproof sealing performance between the structure 31 and the special adhesive 20. The waterproof, seepage-proof and corrosion-resistant coating 32 is a cement-based penetrating crystalline waterproof coating.

[0063] like Figure 6As shown, its specific structure is similar to Figure 5 They are basically the same, except that the outer edge of the special waterproof sealing component 10 is sealed with waterproof sealant or waterproof sealing tape 51 between it and the structural entity 31 to greatly enhance the waterproof performance.

[0064] like Figure 11 As shown, both structural entities 31 are exterior walls, each including columns 311 and masonry 312 located outside the columns 311. The building expansion joint 301 is an exterior wall expansion joint, and foam boards 40 are bonded and filled within the expansion joint 301 using foam adhesive. The foam boards 40 are bonded and fixed to the bottom surface of the polymer waterproof sheet 11 using foam adhesive. Furthermore, the two sides of the special waterproof sealing component 10 are fixed to the columns 311 of the two exterior walls by anchors 52. The anchors 52 pass through the polymer waterproof sheet 11, the profile sheet 12, and the special adhesive 20 sequentially and are anchored into the columns 311. The base surface of the profile sheet 12 is adhered and fixed to the downward-facing structural entities 31 on both sides of the building expansion joint 301 using the special adhesive 20.

[0065] like Figure 12 As shown, its specific structure is similar to Figure 11 The two are basically the same, except that the surface of the column 311 is pre-polished to meet the requirements of being flat and solid, and the surface of the column 311 is provided with a waterproof, seepage-proof and anti-corrosion coating 313. The special adhesive 20 is covered on the surface of the waterproof, seepage-proof and anti-corrosion coating 313 to enhance the waterproof sealing performance between the column 311 and the special adhesive 20. The waterproof, seepage-proof and anti-corrosion coating 313 is a cement-based penetrating crystalline waterproof coating.

[0066] like Figure 13 As shown, one structural entity 31 is a first concrete structure 314, and the other structural entity 31 includes a second concrete structure 315 and a masonry structure 316 disposed on the second concrete structure 315. The two profiles 12 of the special waterproof sealing component 10 are respectively bonded and fixed to the first concrete structure 314 and the masonry structure 316 using a special adhesive 20. Furthermore, one side of the special waterproof sealing component 10 is fixed to the masonry structure 316 by an anchor 53, which passes through the polymer waterproof sheet 11, the profile 12, and the special adhesive 20 and is anchored into the masonry structure 316. The building expansion joint 301 is a wall expansion joint, and a foam board 40 is bonded and filled within the building expansion joint 301. The base surface of the profile 12 is bonded and fixed to the structural entities 31 on both the planar and vertical sides using a special adhesive 20.

[0067] like Figure 14 As shown, its specific structure is similar to Figure 13The components are basically the same, except that the outer edge of the special waterproof sealing component 10 is sealed with waterproof sealant or waterproof sealing tape 54 between the outer edge of the component and the first concrete structure 314 and between the other outer edge of the component and the masonry structure 316, so as to greatly enhance the waterproof performance.

[0068] like Figure 15 As shown, its specific structure is similar to Figure 13 The two structures are basically the same, except that the surface of the first concrete structure 314 is pre-polished to achieve a smooth and solid finish, and a waterproof, seepage-proof and corrosion-resistant coating 317 is provided on the surface of the first concrete structure 314. The special adhesive 20 is covered on the surface of the waterproof, seepage-proof and corrosion-resistant coating 317 to enhance the waterproof sealing performance between the first concrete structure 314 and the special adhesive 20. The waterproof, seepage-proof and corrosion-resistant coating 317 is a cement-based penetrating crystalline waterproof coating.

[0069] like Figure 16 As shown, its specific structure is similar to Figure 15 The components are basically the same, except that the outer edge of the special waterproof sealing component 10 is sealed with waterproof sealant or waterproof sealing tape 54 between the outer edge of the component and the first concrete structure 314 and between the other outer edge of the component and the masonry structure 316, so as to greatly enhance the waterproof performance.

[0070] like Figure 17 As shown, one structural entity 31 is a concrete structure, and the other structural entity 31 is a profile, glass, stone, or wood 318. The profile, glass, stone, or wood 318 is fixed to the concrete structure. The two sides of the profile, glass, stone, or wood 318 are the water-facing side 302 and the water-repellent side 303, respectively. The dedicated waterproof sealing component 10 is located on the water-facing side 302. One profile piece 12 of the dedicated waterproof sealing component 10 is adhered and fixed to the concrete structure using a dedicated adhesive 20. The other profile piece 12 of the dedicated waterproof sealing component 10 is adhered and fixed to the profile, glass, stone, or wood 318 using a dedicated adhesive 20. Furthermore, the base surface of the profile piece 12 is adhered and fixed to the two structural entities 31 on the water-facing side using a dedicated adhesive 20.

[0071] like Figure 18 As shown, its specific structure is similar to Figure 17 They are basically the same, except that the outer edge of the special waterproof sealing component 10 is sealed with waterproof sealant or waterproof sealing tape 55 between it and the concrete structure, and between the other outer edge of the special waterproof sealing component 10 and the profile, glass, stone or wood 318, so as to greatly enhance the waterproof performance.

[0072] like Figure 19 As shown, its specific structure is similar to Figure 17The two are basically the same, except that the surface of the concrete structure is pre-polished to achieve a smooth and solid finish, and the surface of the concrete structure has a waterproof, seepage-proof and anti-corrosion coating 319. The special adhesive 20 is applied to the surface of the waterproof, seepage-proof and anti-corrosion coating 319 to enhance the waterproof sealing performance between the concrete structure and the special adhesive 20. The waterproof, seepage-proof and anti-corrosion coating 319 is a cement-based penetrating crystalline waterproof coating.

[0073] like Figure 20 As shown, its specific structure is similar to Figure 19 They are basically the same, except that the outer edge of the special waterproof sealing component 10 is sealed with waterproof sealant or waterproof sealing tape 56 between it and the concrete structure, and between the other outer edge of the special waterproof sealing component 10 and the profile, glass, stone or wood 318, so as to greatly enhance the waterproof performance.

[0074] This utility model also discloses a method for waterproofing and sealing building expansion joints and inhibiting structural degradation, comprising the following steps:

[0075] (1) A special waterproof sealing component 10 is prepared in advance. The special waterproof sealing component 10 includes a polymer waterproof sheet 11 and a profile sheet 12, which is composited on the polymer waterproof sheet 11.

[0076] (2) The base surface of the profile sheet 12 is attached and fixed to the two sides of the building expansion joint 301, facing upward or downward, water-facing or water-backing, or one side of the plane and one side of the elevation, using special adhesive 20.

[0077] This utility model method can be used to set up a membrane structure water barrier layer on the roof 33 using TPO or PVC polymer waterproof sheet, for the purpose of waterproofing in compartments. The implementation method is to bond and fix the special waterproof sealing component 10 to the corresponding appropriate position on the roof 33, as a water barrier layer to prevent water from seeping between the TPO or PVC polymer waterproof sheet membrane structure water barrier waterproof layers.

[0078] Specifically, such as Figure 7 and Figure 8 As shown, an overlap seam 102 is formed between the profile sheets 12 of two adjacent special waterproof sealing components 10. The overlap seam 102 is filled with special sealant 13. Furthermore, the polymer waterproof sheets 11 of the two adjacent special waterproof sealing components 10 are attached to each other and fixed together by hot air welding.

[0079] like Figure 9 and Figure 10 As shown, its specific structure is similar to Figure 7 and Figure 8The two are basically the same, except that the surface of the roof 33 is pre-polished to meet the requirements of being flat and solid, and the surface of the roof 33 has a waterproof, seepage-proof and anti-corrosion coating 34. The special adhesive 20 is covered on the surface of the waterproof, seepage-proof and anti-corrosion coating 34 to enhance the waterproof sealing performance between the roof 33 and the special adhesive 20. The waterproof, seepage-proof and anti-corrosion coating 34 is a cement-based penetrating crystalline waterproof coating.

[0080] The key design feature of this invention is that by assembling profile sheets onto a polymer waterproof sheet to form a specialized waterproof sealing component, and then using a special adhesive to bond and fix the base surface of the profile sheet to the two sides of the building expansion joint, facing upwards or downwards, on the water-facing or backwater side, or on one side of the plane and one side of the elevation, the construction is convenient and cost-effective. It also effectively improves the overlap strength, has wider adaptability, more reliable durability, and is easier to construct, maintain, and repair. It prevents water from accumulating and spreading within the expansion joint structure, inhibiting structural decay and laying the foundation for self-waterproofing of the building structure and construction, while also providing a guarantee for high-quality building development.

[0081] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A structure for waterproofing and sealing building expansion joints and inhibiting structural decay, characterized in that: The invention comprises a special waterproof sealing component, which comprises a polymer waterproof sheet and a profile sheet. The profile sheet is compounded on the polymer waterproof sheet. The base surface of the profile sheet is fixed on both sides of the building deformation joint, facing upward or downward, facing the water surface or facing away from the water surface, or on one side of the plane and the facade, by a special adhesive.

2. The structure for waterproofing and sealing building expansion joints and inhibiting structural decay according to claim 1 is characterized in that: The polymer waterproof sheet is a TPO or PVC waterproof sheet with a thickness of 0.8 to 2.0 mm, and the profile sheet is a galvanized steel sheet, aluminum alloy sheet or stainless steel sheet with a thickness of 0.6 to 2.0 mm and a width of 20 to 50 mm in a long strip shape.

3. The structure for waterproofing and sealing building expansion joints and inhibiting structural decay according to claim 1 is characterized in that: The special waterproof sealing component is in the shape of a long strip, and the width of the special waterproof sealing component is 150-500mm. There are two profile sheets, and the two profile sheets are respectively compounded on the back sides of the polymer waterproof sheet.

4. The structure for waterproofing and sealing building expansion joints and inhibiting structural decay according to claim 1 is characterized in that: The profile sheet is provided with a plurality of holes for the special adhesive to penetrate into and arranged at intervals along the length direction of the profile sheet, and the diameter of the holes is 5.0-8.0 mm.

5. The structure for waterproofing and sealing building expansion joints and inhibiting structural decay according to claim 1 is characterized in that: The special adhesive is a polymer special mortar or a cement-based steel structure adhesive.

6. The structure for waterproofing and sealing building expansion joints and inhibiting structural decay according to claim 1 is characterized in that: The profile sheet is a galvanized steel sheet with a width of 30 to 40 mm. After mechanical stamping, two sides are flat surfaces with a width of 10 to 15 mm, and the middle is stamped to form a perforated mesh with a width of 8 to 25 mm.

7. The structure for waterproofing and sealing building expansion joints and inhibiting structural decay according to claim 1 is characterized in that: A waterproof sealant or a waterproof sealing tape is sealed between the outer edge of the special waterproof sealing component and the structural entity.

8. The structure for waterproofing and sealing building expansion joints and inhibiting structural decay according to claim 1 is characterized in that: The surface of the structural entity is flat, and a waterproof, anti-seepage and anti-corrosion coating is provided on the surface of the structural entity, and the special adhesive is covered on the surface of the waterproof, anti-seepage and anti-corrosion coating.

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