Joint waterproof structure
By using a combination of spacers and multiple layers of waterproof coating at concrete joints, the problem of insufficient weather resistance of sealant is solved, resulting in superior waterproof durability and simplified construction procedures.
Patent Information
- Application Number
- CN202423033771.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing sealants have poor weather resistance at concrete joints in structures such as artificial waterways and ditches, and are prone to seal failure due to joint deformation, resulting in insufficient waterproofing durability.
The joints are covered with separators and multiple layers of waterproof coating are applied to the outside, including a first waterproof coating layer and a curable composition, with additional reinforcements and a second waterproof coating layer to enhance the waterproof performance of the structure.
It improves the waterproofing durability of joints, reduces deformation of the coating layer, enhances the waterproofing effect of the structure, and simplifies the construction process.
Smart Images
Figure CN223838002U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of waterproofing technology, and in particular to waterproofing structures for concrete joints in artificial waterways and ditches. Background Technology
[0002] For example, the base and slopes of artificial waterways, ditches, and other structures are often assembled from multiple concrete modules 100. The joints between these concrete modules 100 often require waterproofing and seepage prevention. (See also...) Figure 1 In a method for waterproofing the joints of an artificial canal known to the inventor, the joints are sealed by applying sealant 110.
[0003] However, regarding the sealant itself, existing sealants are mostly polyurethane and resin mortars. Since these sealants are directly exposed to air and water, their weather resistance is not strong. If a cement blanket or other covering is then applied over the sealant, the process becomes relatively complicated. Furthermore, joints, such as expansion joints between structural modules, may experience small-scale movement and deformation. The sealant at these joints may deform significantly due to the joint's deformation, leading to seal failure, and its waterproof durability still has room for improvement. Utility Model Content
[0004] To improve waterproofing, particularly at the joints of structures, this application provides a joint waterproofing structure.
[0005] This application provides a joint waterproofing structure, which includes a separator for covering the joint, and a first waterproof coating layer is disposed on the outside of the separator, the first waterproof coating layer covering the separator and the ground outside the separator.
[0006] In at least one embodiment, a reinforcing member is provided outside the first waterproof coating layer, and a second waterproof coating layer is provided outside the reinforcing member. The width of the reinforcing member is smaller than the width of the first waterproof coating layer and the width of the second waterproof coating layer, and the second waterproof coating layer covers the reinforcing member and the first waterproof coating layer.
[0007] In at least one embodiment, the width of the first waterproof coating layer and the width of the second waterproof coating layer are equal.
[0008] In at least one embodiment, the separator includes a first part, a second part, and a third part arranged in the width direction of the seam, wherein the width of the second part is the same as the width of the seam, and the ratio of the difference between the width of the first part and the width of the second part to the width of the first part does not exceed 20%.
[0009] In at least one embodiment, the first waterproof coating layer includes a first part, a second part, and a third part of the waterproof coating layer arranged in the width direction. In the width direction, the width of the second part of the waterproof coating layer is the same as the width of the separator, and the width of the first part of the waterproof coating layer is 2.5 to 7 times the width of the second part of the separator.
[0010] In cases of joint deformation, the first waterproof coating layer does not deform drastically due to the buffering effect of the separator, compared to implementations that directly cover the joint, resulting in superior waterproof durability of the joint waterproof structure. Attached Figure Description
[0011] Figure 1 A schematic diagram of a waterproof structure at the joint of an artificial canal, as understood by the inventor, is shown.
[0012] Figure 2 A schematic diagram of a joint waterproofing structure according to an embodiment of this application is shown.
[0013] Explanation of reference numerals in the attached figures
[0014] 100 Concrete module; 110 Sealant; 200 Concrete module; 210 Joint; 220 Separator; 221 First part of separator; 222 Second part of separator; 223 Third part of separator; 230 First waterproof coating layer; 231 First part of waterproof coating layer; 232 Second part of waterproof coating layer; 233 Third part of waterproof coating layer; 240 Reinforcing member; 250 Second waterproof coating layer Detailed Implementation
[0015] Exemplary embodiments of this application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are for teaching those skilled in the art how to implement this application only, and are not intended to exhaustively describe all possible methods of this application, nor to limit the scope of this application.
[0016] Unless otherwise defined, the technical and scientific terms used in this specification have the same meanings as commonly understood by one of ordinary skill in the art to which this application pertains.
[0017] In this specification, the range of values referred to as "value A to value B" refers to the range including the endpoint values A and B.
[0018] In this specification, the specific elements (e.g., features, structures, properties, and / or characteristics) described in connection with "one embodiment of this application" may or may not be present in other embodiments. Furthermore, it should be understood that these elements may be combined in any suitable manner in the various embodiments.
[0019] This application provides a waterproof joint structure. For example, see [link to example]. Figure 2 The waterproof joint structure and its construction method can be used at the joints 210 of concrete modules 200 in structures such as artificial rivers, ditches, reservoirs, and water storage ponds.
[0020] In one embodiment of this application, see Figure 2 The joint waterproofing structure may include a separator 220 for covering the joint 210, and a first waterproof coating layer 230 may be applied to the outside of the separator 220. The first waterproof coating layer 230 may cover the separator 220 and the ground outside the separator 220.
[0021] The separator 220 separates the first waterproof coating layer 230 from the joint 210. Therefore, in the event of deformation of, for example, the joint 210, the first waterproof coating layer 230 deforms less drastically due to the buffering effect of the separator 220 compared to an embodiment where the coating is directly applied to the joint, resulting in superior waterproof durability of the joint waterproofing structure. Furthermore, the separator 220 also prevents the waterproof coating from seeping into the joint 210, resulting in a smoother waterproof coating layer.
[0022] For example, the first waterproof coating layer 230 may include a curable composition, which may include an organic polymer having reactive silicon-containing groups. This curable composition is sometimes also referred to as a silane-modified polyether waterproof coating. The organic polymer having reactive silicon-containing groups may be MS polymer (KANEKAMSPOLYMER) from Kaneka Corporation. TM For example, MS polymers with grades SAX750 and MA904. This reactive silicone-containing organic polymer has excellent properties, good conformability, and is not easily broken, which can improve the waterproof effect at the joint 210 and improve waterproof durability.
[0023] In one embodiment of this application, a reinforcing member 240 is provided outside the first waterproof coating layer 230, and a second waterproof coating layer 250 is provided outside the reinforcing member 240. The width of the reinforcing member 240 is smaller than the width of the first waterproof coating layer 230 and the width of the second waterproof coating layer 250, and the second waterproof coating layer 250 covers the reinforcing member 240 and the first waterproof coating layer 230.
[0024] For example, the reinforcement 240 can be a reinforcing fabric, such as a stiffening fabric. The second waterproof coating layer 250 can include a curable composition comprising an organic polymer having reactive silicon-containing groups. That is, the strength of the waterproof coating layer can be increased by providing the reinforcement 240 when applying the waterproof coating layer, thereby reducing the impact of deformation of the joint 210 on the waterproof coating layer.
[0025] Understandable. Figure 2The reinforcement 240 is only used to illustrate the positional relationship of the components. In reality, the reinforcement 240 can be set horizontally or almost horizontally.
[0026] In one embodiment of this application, the width of the first waterproof coating layer 230 and the width of the second waterproof coating layer 250 are equal. Of course, there may be differences.
[0027] In one embodiment of this application, see Figure 2 The separator 220 may include a first separator 221, a second separator 222, and a third separator 223 arranged in the width direction X of the seam 210. The width W2 of the second separator 222 is the same as the width of the seam 210. The ratio of the difference between the width W1 of the first separator 221 and the width W2 of the second separator 222 to the width W1 of the first separator 221 does not exceed 20%. That is, |W1-W2| / W1≤20%. The width W3 of the third separator 223 may be the same as or close to the width W1 of the first separator 221. For example, |W1-W3| / W1≤20%.
[0028] In one embodiment of this application, see Figure 2 The first waterproof coating layer 230 may include a first part 231, a second part 232, and a third part 233 of the waterproof coating layer arranged in the width direction X of the joint 210. In the width direction X of the joint 210, the width of the second part 232 is the same as the width of the separator 220, and the width D1 of the first part 231 is 2.5 to 7 times the width W2 of the second part 222. The width D3 of the third part 233 may be the same as or close to the width D1 of the first part 231. For example, |D1-D3| / D1≤20%.
[0029] For example, D1 can be 5-7 cm and W2 can be 1-2 cm. In engineering, the weight of the waterproof coating (the sum of the first waterproof coating layer 230 and the second waterproof coating layer 250) required for a one-meter-long joint 210 can be 0.5 kg.
[0030] In one embodiment of this application, the width of the reinforcing member 240 in the joint width direction X can be greater than the width of the joint 210. Preferably, it can be greater than the width of the separator 220. The width of the second waterproof coating layer 250 can be the same as the width of the first waterproof coating layer 230.
[0031] Waterproofing repair methods for joint waterproofing structures include:
[0032] (S1) A partition 220 covering the joint 210 is provided outside the joint 210;
[0033] (S2) A first waterproof coating layer 230 is provided on the outside of the separator 220.
[0034] Furthermore, waterproofing repair methods may also include:
[0035] (S3) A reinforcing member 240 is provided on the outside of the first waterproof coating layer 230;
[0036] (S4) A second waterproof coating layer 250 is provided on the outside of the reinforcing member 240. The composition of the second waterproof coating layer 250 and the first waterproof coating layer 230 may be the same.
[0037] This construction method is simple to follow and provides good waterproofing and durability. Furthermore, it can create the aforementioned joint waterproofing structure, thus naturally possessing all the advantages of joint waterproofing structures.
[0038] Furthermore, it should be understood that Figure 2 This is used to schematically illustrate the positional relationships between the various structures. The first waterproof coating layer 230 and the second waterproof coating layer 250 can be in contact in the height direction. The first waterproof coating layer 230, the second waterproof coating layer 250, and the reinforcing member 240 can have a smooth transition.
[0039] The above description is the preferred embodiment of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A waterproof joint structure, characterized in that, The joint waterproofing structure includes a separator for covering the joint, a first waterproof coating layer is provided on the outside of the separator, the first waterproof coating layer covers the separator and the ground outside the separator, a reinforcing member is provided on the outside of the first waterproof coating layer, and a second waterproof coating layer is provided on the outside of the reinforcing member, the width of the reinforcing member is smaller than the width of the first waterproof coating layer and the width of the second waterproof coating layer, and the second waterproof coating layer covers the reinforcing member and the first waterproof coating layer.
2. The joint waterproofing structure according to claim 1, characterized in that, The width of the first waterproof coating layer is equal to the width of the second waterproof coating layer.
3. The joint waterproofing structure according to claim 1, characterized in that, The separator includes a first part, a second part, and a third part arranged in the width direction of the joint. The width of the second part is the same as the width of the joint, and the ratio of the difference between the width of the first part and the width of the second part to the width of the first part does not exceed 20%.
4. The joint waterproof structure according to claim 3, characterized in that, The first waterproof coating layer includes a first part, a second part, and a third part of the waterproof coating layer arranged in the width direction. In the width direction, the width of the second part of the waterproof coating layer is the same as the width of the separator, and the width of the first part of the waterproof coating layer is 2.5 to 7 times the width of the second part of the separator.
5. The joint waterproofing structure according to claim 1, characterized in that, The joint waterproofing structure refers to the joint waterproofing structure at the joints of concrete modules in artificial waterways, ditches, reservoirs, or water storage ponds.