A waterproofing repair system

Abstract

The utility model provides a waterproof repair system mainly has following structure composition, the innermost layer is rigid waterproof material coating, is provided with the mesh cloth outside rigid waterproof material coating, is provided with the flexible waterproof coating coating on the upside, is provided with the geotextile or waterproof membrane structure on the outermost side. This waterproof repair system uses the three -layer waterproof structure of inside and outside compound, the waterproof design of rigid and flexible, can realize better repair waterproof effect to the complex topography and the structure to be repaired of waterproof repair area.

Description

Technical Field

[0001] This utility model provides a waterproof repair system, belonging to the application field of building waterproof materials. Background Technology

[0002] The design and application of waterproofing materials is a practical discipline related to the function and service life of a building. In recent years, China has made great strides in the design, manufacturing, research and development of waterproofing materials. Significant technological innovations have emerged in the application fields, waterproofing effects, construction methods, and design life of waterproofing structures. For new buildings, waterproofing construction can now meet the design requirement that the waterproofing layer has the same lifespan as the main building structure. Only regular maintenance and upkeep are needed during the building's functional lifespan. However, for existing buildings constructed in the past thirty years, due to insufficient material design specifications, non-standard construction, and substandard material performance margins, waterproofing structures have gradually deteriorated and failed to some extent, affecting the building's service life and causing damage to life and property.

[0003] Existing buildings face complex waterproofing conditions and lack pre-design specifications, currently representing a gap in waterproofing design and construction. Given the diversity and complexity of waterproofing leaks in existing buildings, existing single-structure waterproofing designs cannot meet all requirements under different conditions. Furthermore, since leaks in existing buildings are generally not located within the waterproofing layer but rather within the building structure, involving the application of waterproofing materials on the back side, the impermeability and effectiveness of the waterproofing structure differ from those commonly applied on the front side. Therefore, designing a waterproofing structure suitable for complex waterproofing repairs of existing buildings, combining existing waterproofing materials, and addressing both the construction and application effects of waterproofing repairs in existing buildings, would possess significant practical value. Utility Model Content

[0004] This invention addresses the problem that current building waterproofing repair projects often fail to achieve the desired waterproofing effect due to the complex structural conditions of the repaired area, where single materials and design / construction schemes are insufficient. A waterproofing repair system is designed, with the following main structure: the innermost layer is a rigid waterproofing material coating, surrounded by a mesh fabric; the upper layer is a flexible waterproofing material coating or a weather-resistant waterproofing paint coating; and the outermost layer is a geotextile or waterproof membrane structure. This waterproofing repair system utilizes a three-layer composite waterproofing structure, combining rigidity and flexibility in its design, achieving good waterproofing results even with complex terrain and structures requiring repair.

[0005] To achieve the aforementioned technical effects, this utility model discloses a durable waterproof repair and maintenance system. This waterproof repair system comprises an innermost rigid waterproof material coating, an outer mesh fabric, an upper flexible waterproof material coating or a weather-resistant waterproof coating, and an outermost geotextile or waterproof membrane structure. Preferably, the rigid waterproof material coating is a water-based penetrating inorganic waterproofing agent layer, or a waterproof mortar layer with a designed thickness of 1.0-6.0 mm, or a waterproof slurry layer with a designed thickness of 1.0-6.0 mm, or a polymer cement waterproof coating (Type III) with a designed thickness of 1.0-2.0 mm, or a cement-based penetrating crystalline waterproof layer with a designed thickness of 1.0-3.0 mm. The water-based penetrating inorganic waterproofing agent layer is DPS permanent curing liquid or lotus leaf type organic silicone waterproofing agent. During construction, it is sprayed repeatedly 3-5 times on the surface of the base to be repaired. The waterproof mortar, waterproof slurry, polymer cement waterproof coating or cement-based penetrating crystalline waterproofing layer is applied to the base surface by spraying, scraping or troweling.

[0006] Preferably, the mesh fabric is a fiberglass mesh fabric, and the construction method is to directly cut and lay it on the outside after the lower rigid waterproof material layer is completed.

[0007] Preferably, the flexible waterproof coating is classified as a conventional flexible waterproof coating, such as a polymer emulsion waterproof coating, a polymer cement waterproof coating (Type I / II), or a polyurethane waterproof coating (aromatic), or a weather-resistant flexible waterproof coating such as a polyurethane waterproof coating (aliphatic), a silane-modified polyether waterproof coating, or a butyl rubber waterproof coating, with a designed thickness of 0.3-2.0 mm.

[0008] Preferably, the geotextile is a non-woven filament geotextile with a specification of 100-500g / ㎡, and the waterproof membrane is a thick PE membrane, or a high-strength PET membrane, or a cross-laminated membrane, or a fluorocarbon film composite cross-laminated membrane or PET membrane, with a designed thickness of 0.05-0.20mm.

[0009] Preferably, the repair construction method of this waterproof repair system is as follows: ① Clean the base surface, remove loose sand and dust from the base surface to be repaired, and reinforce the base surface with cement grout if necessary. After the base surface is flat and firm, proceed to the next step. ② Apply a rigid waterproof coating, wherein the waterproofing agent is sprayed in 3-5 coats, and other waterproof coatings are applied in 1-3 coats to the specified thickness. ③ Set up a mesh cloth. After the last rigid waterproof coating is applied, immediately cut the mesh cloth to a suitable size and lay it on the outside of the waterproof coating. If the base surface to be repaired is large, the mesh cloth needs to be spliced, and the long and short sides of the mesh cloth need to overlap by more than 10cm during the splicing process. ④ Apply a flexible waterproof coating layer. After the rigid waterproof coating has cured, apply the flexible waterproof coating layer to the outside of the rigid waterproof coating in 1-2 coats according to the designed thickness. ⑤ Lay geotextile or waterproof membrane. After the inner flexible waterproof coating layer is completed but before it has solidified, cut the geotextile or waterproof membrane to the required size and lay it on the outside of the waterproof coating layer. If the base surface to be waterproofed and repaired is large and overlaps are necessary, the geotextile and waterproof membrane can be overlapped. Overlaps should be made at least 10cm. Apply butyl adhesive to the overlaps for bonding and seal the outer side with butyl tape. Butyl tape must be used to seal the joints between the geotextile and the base surface, the geotextile and the undercoat, the membrane and the base surface, and the membrane and the undercoat. ⑥ When waterproofing repairs are applicable to vertical structures, the waterproof coating must be designed to prevent sagging, and the geotextile and waterproof membrane must be secured to prevent slippage.

[0010] This utility model relates to a waterproofing repair system designed for complex conditions in existing building waterproofing repair projects, especially in special waterproofing environments where some repaired areas have back-water waterproofing structures. It employs a three-layer composite waterproofing design: a rigid waterproofing coating with good back-water performance, a flexible waterproofing membrane, and a geotextile / waterproofing membrane. The rigid waterproofing coating and flexible waterproofing membrane are suitable for different substrates and can be designed and constructed for various structures requiring repair of leaks or waterproofing layers in existing buildings. The outermost geotextile and waterproofing membrane layers further seal and reinforce the two inner waterproofing repair structures. Furthermore, the materials can be cut and overlapped according to different repair needs, allowing the waterproofing structure to better fit the area requiring repair and avoiding material waste. The three-layer waterproofing structure utilizes a rigid waterproofing coating for inner reinforcement and seepage prevention, a flexible waterproofing coating layer for middle waterproofing and durability enhancement, and a geotextile / waterproofing membrane layer for outer protection. This design mechanism ensures excellent waterproofing performance and long-term durability for various waterproofing conditions and repaired structures. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram illustrating the structural implementation of the present invention.

[0012] 1. Structural base surface to be repaired; 2. Rigid waterproof coating; 3. Mesh fabric; 4. Flexible waterproof coating; 5. Geotextile / waterproof membrane; 6. Butyl tape; Detailed Implementation

[0013] Example 1:

[0014] A waterproof repair system comprises an innermost rigid waterproof material coating, an outer mesh fabric layer, an upper flexible waterproof material coating, and an outermost geotextile structure. The rigid waterproof material coating is a water-based penetrating inorganic waterproofing agent, specifically a lotus leaf-type silicone waterproofing agent, applied repeatedly 3-5 times to the surface to be repaired.

[0015] The mesh fabric is a fiberglass mesh fabric, and the construction method is to cut and lay it directly on the outside after the rigid waterproof material layer on the bottom is completed. The flexible waterproof coating is a polymer emulsion waterproof coating with a designed thickness of 1.5mm.

[0016] The geotextile is a non-woven filament geotextile with a specification of 220g / ㎡.

[0017] The repair construction method of this waterproof repair system is as follows: ① Clean the base surface, remove loose sand and dust from the base surface to be repaired, and reinforce the base surface with cement grout if necessary. After the base surface is flat and firm, proceed to the next step. ② Apply a rigid waterproof coating, with the waterproofing agent sprayed in 3-5 coats and other waterproof coatings applied in 1-3 coats to the specified thickness. ③ Install a mesh fabric, immediately after the last rigid waterproof coating is applied, cut the mesh fabric to an appropriate size and lay it on the outside of the waterproof coating. If the base surface to be repaired is large, the mesh fabric needs to be spliced, with the long and short sides overlapping by more than 10cm. ④ Apply a flexible waterproof coating layer, after the rigid waterproof coating has cured, apply the flexible waterproof coating layer to the outside of the rigid waterproof coating in 1-2 coats according to the designed thickness. ⑤ Lay geotextile or waterproof membrane, after the inner flexible waterproof coating layer is applied but before it has solidified, cut the geotextile or waterproof membrane to the required size and lay it on the outside of the waterproof coating layer. If the base surface to be waterproofed and repaired is large and overlaps are necessary, the geotextile and waterproof membrane can be overlapped. Overlaps should be made at least 10cm. Apply butyl adhesive to the overlaps for bonding and seal the outer side with butyl tape. Butyl tape must be used to seal the joints between the geotextile and the base surface, the geotextile and the undercoat, the membrane and the base surface, and the membrane and the undercoat. ⑥ When waterproofing repairs are applicable to vertical structures, the waterproof coating must be designed to prevent sagging, and the geotextile and waterproof membrane must be secured to prevent slippage.

[0018] Example 2:

[0019] A waterproof repair system comprises an innermost rigid waterproof material coating, an outer mesh fabric, an upper flexible weather-resistant waterproof coating, and an outermost waterproof membrane structure. The rigid waterproof material coating is a waterproof mortar layer with a designed thickness of 1.0-6.0 mm, applied to the substrate surface using spraying, scraping, or troweling methods. The mesh fabric is a fiberglass mesh fabric, cut and laid directly onto the outer side of the underlying rigid waterproof material layer after its application. The flexible weather-resistant adhesive waterproof coating is a polyurethane waterproof coating (aliphatic) with a designed thickness of 2.0 mm.

[0020] The waterproof membrane is a thick PE membrane with a designed thickness of 0.05 mm.

[0021] The repair construction method of this waterproof repair system is as follows: ① Clean the base surface, remove loose sand and dust from the base surface to be repaired, and reinforce the base surface with cement grout if necessary. After the base surface is flat and firm, proceed to the next step. ② Apply a rigid waterproof coating, with the waterproofing agent sprayed in 3-5 coats and other waterproof coatings applied in 1-3 coats to the specified thickness. ③ Install a mesh fabric, immediately after the last rigid waterproof coating is applied, cut the mesh fabric to an appropriate size and lay it on the outside of the waterproof coating. If the base surface to be repaired is large, the mesh fabric needs to be spliced, with the long and short sides overlapping by more than 10cm. ④ Apply a flexible waterproof coating layer, after the rigid waterproof coating has cured, apply the flexible waterproof coating layer to the outside of the rigid waterproof coating in 1-2 coats according to the designed thickness. ⑤ Lay geotextile or waterproof membrane, after the inner flexible waterproof coating layer is applied but before it has solidified, cut the geotextile or waterproof membrane to the required size and lay it on the outside of the waterproof coating layer. If the base surface to be waterproofed and repaired is large and overlaps are necessary, the geotextile and waterproof membrane can be overlapped. Overlaps should be made at least 10cm. Apply butyl adhesive to the overlaps for bonding and seal the outer side with butyl tape. Butyl tape must be used to seal the joints between the geotextile and the base surface, the geotextile and the undercoat, the membrane and the base surface, and the membrane and the undercoat. ⑥ When waterproofing repairs are applicable to vertical structures, the waterproof coating must be designed to prevent sagging, and the geotextile and waterproof membrane must be secured to prevent slippage.

[0022] Example 3:

[0023] A waterproof repair system comprises an innermost rigid waterproof material coating, an outer mesh fabric, an upper flexible waterproof coating, and an outermost waterproof membrane structure. The rigid waterproof material coating is a polymer cement waterproof coating (Type III) with a designed thickness of 1.5 mm, applied to the substrate surface using spraying or troweling methods. The mesh fabric is a fiberglass mesh fabric, cut and applied directly to the outer side of the rigid waterproof material layer after its initial application. The flexible waterproof coating is a polymer cement waterproof coating (Type I / II) with a designed thickness of 1.0 mm.

[0024] The waterproof membrane is a fluorocarbon film composite cross-laminated membrane with a designed thickness of 0.15 mm.

[0025] The repair construction method of this waterproof repair system is as follows: ① Clean the base surface, remove loose sand and dust from the base surface to be repaired, and reinforce the base surface with cement grout if necessary. After the base surface is flat and firm, proceed to the next step. ② Apply a rigid waterproof coating, with the waterproofing agent sprayed in 3-5 coats and other waterproof coatings applied in 1-3 coats to the specified thickness. ③ Install a mesh fabric, immediately after the last rigid waterproof coating is applied, cut the mesh fabric to an appropriate size and lay it on the outside of the waterproof coating. If the base surface to be repaired is large, the mesh fabric needs to be spliced, with the long and short sides overlapping by more than 10cm. ④ Apply a flexible waterproof coating layer, after the rigid waterproof coating has cured, apply the flexible waterproof coating layer to the outside of the rigid waterproof coating in 1-2 coats according to the designed thickness. ⑤ Lay geotextile or waterproof membrane, after the inner flexible waterproof coating layer is applied but before it has solidified, cut the geotextile or waterproof membrane to the required size and lay it on the outside of the waterproof coating layer. If the base surface to be waterproofed and repaired is large and overlaps are necessary, the geotextile and waterproof membrane can be overlapped. Overlaps should be made at least 10cm. Apply butyl adhesive to the overlaps for bonding and seal the outer side with butyl tape. Butyl tape must be used to seal the joints between the geotextile and the base surface, the geotextile and the undercoat, the membrane and the base surface, and the membrane and the undercoat. ⑥ When waterproofing repairs are applicable to vertical structures, the waterproof coating must be designed to prevent sagging, and the geotextile and waterproof membrane must be secured to prevent slippage.

[0026] Example 4:

[0027] A waterproof repair system comprises an innermost rigid waterproof material coating, an outer mesh fabric, an upper flexible weather-resistant waterproof coating, and an outermost geotextile or waterproof membrane structure. The rigid waterproof material coating is a cement-based penetrating crystalline waterproof layer with a designed thickness of 1.2 mm. It is applied to the substrate surface using a spraying method. The mesh fabric is a fiberglass mesh fabric, which is cut and laid directly on the outer side after the lower rigid waterproof material layer is applied. The flexible waterproof coating is a silane-modified polyether waterproof coating with a designed thickness of 1.2 mm.

[0028] The waterproof membrane is a cross-laminated membrane with a designed thickness of 0.10 mm.

[0029] The repair construction method of this waterproof repair system is as follows: ① Clean the base surface, remove loose sand and dust from the base surface to be repaired, and reinforce the base surface with cement grout if necessary. After the base surface is flat and firm, proceed to the next step. ② Apply a rigid waterproof coating, with the waterproofing agent sprayed in 3-5 coats and other waterproof coatings applied in 1-3 coats to the specified thickness. ③ Install a mesh fabric, immediately after the last rigid waterproof coating is applied, cut the mesh fabric to an appropriate size and lay it on the outside of the waterproof coating. If the base surface to be repaired is large, the mesh fabric needs to be spliced, with the long and short sides overlapping by more than 10cm. ④ Apply a flexible waterproof coating layer, after the rigid waterproof coating has cured, apply the flexible waterproof coating layer to the outside of the rigid waterproof coating in 1-2 coats according to the designed thickness. ⑤ Lay geotextile or waterproof membrane, after the inner flexible waterproof coating layer is applied but before it has solidified, cut the geotextile or waterproof membrane to the required size and lay it on the outside of the waterproof coating layer. If the base surface to be waterproofed and repaired is large and overlaps are necessary, the geotextile and waterproof membrane can be overlapped. Overlaps should be made at least 10cm. Apply butyl adhesive to the overlaps for bonding and seal the outer side with butyl tape. Butyl tape must be used to seal the joints between the geotextile and the base surface, the geotextile and the undercoat, the membrane and the base surface, and the membrane and the undercoat. ⑥ When waterproofing repairs are applicable to vertical structures, the waterproof coating must be designed to prevent sagging, and the geotextile and waterproof membrane must be secured to prevent slippage.

[0030] Example 5:

[0031] A waterproof repair system comprises an innermost rigid waterproof material coating, an outer mesh fabric, an upper flexible weather-resistant waterproof coating, and an outermost waterproof membrane structure. The rigid waterproof material coating is a waterproof slurry layer with a designed thickness of 3.0 mm, applied to the substrate surface using spraying or troweling methods. The mesh fabric is a fiberglass mesh fabric, cut and laid directly onto the outer side of the rigid waterproof material layer after its initial application. The flexible weather-resistant waterproof coating is a butyl rubber coating with a designed thickness of 1.5 mm.

[0032] The waterproof membrane is a high-strength PET film with a designed thickness of 0.06mm.

[0033] The repair construction method of this waterproof repair system is as follows: ① Clean the base surface, remove loose sand and dust from the base surface to be repaired, and reinforce the base surface with cement grout if necessary. After the base surface is flat and firm, proceed to the next step. ② Apply a rigid waterproof coating, with the waterproofing agent sprayed in 3-5 coats and other waterproof coatings applied in 1-3 coats to the specified thickness. ③ Install a mesh fabric, immediately after the last rigid waterproof coating is applied, cut the mesh fabric to an appropriate size and lay it on the outside of the waterproof coating. If the base surface to be repaired is large, the mesh fabric needs to be spliced, with the long and short sides overlapping by more than 10cm. ④ Apply a flexible waterproof coating layer, after the rigid waterproof coating has cured, apply the flexible waterproof coating layer to the outside of the rigid waterproof coating in 1-2 coats according to the designed thickness. ⑤ Lay geotextile or waterproof membrane, after the inner flexible waterproof coating layer is applied but before it has solidified, cut the geotextile or waterproof membrane to the required size and lay it on the outside of the waterproof coating layer. If the base surface to be waterproofed and repaired is large and overlaps are necessary, the geotextile and waterproof membrane can be overlapped. Overlaps should be made at least 10cm. Apply butyl adhesive to the overlaps for bonding and seal the outer side with butyl tape. Butyl tape must be used to seal the joints between the geotextile and the base surface, the geotextile and the undercoat, the membrane and the base surface, and the membrane and the undercoat. ⑥ When waterproofing repairs are applicable to vertical structures, the waterproof coating must be designed to prevent sagging, and the geotextile and waterproof membrane must be secured to prevent slippage.

[0034] This utility model's waterproof repair system addresses the complex conditions of existing building waterproof repair projects, especially the unique waterproofing requirements of areas requiring repair that are backwater-facing. The design combines a rigid waterproof coating with a flexible waterproof membrane, adaptable to various substrates and waterproofing needs. It achieves excellent design, construction, and application results for both leaking and waterproofing layer repairs in existing buildings. The outermost geotextile and waterproof membrane layers further seal and reinforce the inner two waterproofing layers. Materials can be cut and overlapped according to different repair requirements, ensuring a better fit between the waterproofing structure and the area being repaired, thus avoiding material waste. The three-layer waterproofing structure utilizes a rigid waterproof coating for inner reinforcement and seepage prevention, a flexible waterproof coating layer for middle waterproofing and durability enhancement, and a geotextile / waterproof membrane layer for outer protection. This design mechanism provides excellent waterproofing performance and long-term durability for various waterproofing conditions and repaired structures.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A waterproof repair system, characterized in that, The innermost layer is a rigid waterproof material coating, with a mesh fabric on the outside of the rigid waterproof material coating, a flexible waterproof coating or a weather-resistant waterproof coating on the upper side, and a geotextile or waterproof membrane structure on the outermost side.

2. The waterproof repair system as described in claim 1, characterized in that, The rigid waterproof material coating is a water-based penetrating inorganic waterproofing agent layer, or a waterproof mortar layer with a designed thickness of 1.0-6.0 mm, or a waterproof slurry layer with a designed thickness of 1.0-6.0 mm, or a polymer cement waterproof coating with a designed thickness of 1.0-2.0 mm, or a cement-based penetrating crystalline waterproof layer with a designed thickness of 1.0-3.0 mm. The water-based penetrating inorganic waterproofing agent layer is either DPS permanent waterproofing liquid or lotus leaf type organic silicone waterproofing agent.

3. The waterproof repair system as described in claim 1, characterized in that, The mesh fabric is a glass fiber mesh fabric.

4. The waterproof repair system as described in claim 1, characterized in that, The flexible waterproof coating is classified into polymer emulsion waterproof coating, polymer cement waterproof coating, aromatic polyurethane waterproof coating, aliphatic polyurethane waterproof coating, silane modified polyether waterproof coating, or butyl rubber waterproof coating, with a designed thickness of 0.3-2.0 mm.

5. The waterproof repair system as described in claim 1, characterized in that, The geotextile is a non-woven filament geotextile with a specification of 100-500g / ㎡, and the waterproof membrane is a thick PE membrane, or a high-strength PET membrane, or a cross-laminated membrane, or a fluorocarbon film composite cross-laminated membrane or PET membrane, with a designed thickness of 0.05-0.20mm.

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