Waterproof leaking stoppage structure for crack

Abstract

The utility model relates to the field of waterproof structures, and discloses a crack waterproof and leaking stoppage structure which comprises a building structure body, a waterproof and leaking stoppage layer and a waterproof and leaking stoppage layer, the building structure body is provided with a crack, the crack penetrates from the first face of the building structure body to the second face of the building structure body, and the crack is filled with pouring glue injected through low-pressure grouting; the crack expanding groove is formed in the first face and excavated in the top of the crack in the extending direction of the crack, and groove expanding filler is arranged in the crack expanding groove and used for embedding the low-pressure grouting base and sealing the top of the crack; and the bottom sealing object is arranged on the second face and covers the bottom of the crack. The crack waterproof leaking stoppage structure is good in waterproof effect, and secondary damage to the structure can be avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of waterproof structures, and specifically relates to a crack waterproofing and leak-proofing structure. Background Art

[0002] The existing traditional grouting process is to pre-embed grouting needles on both sides of the crack. In this way, the use of electric hammer drilling will disturb the structure, especially in the waterproof maintenance of existing buildings. Some old buildings have low concrete strength. If the traditional grouting process is used, it will cause secondary damage to the structure. In addition, if the grouting of the pre-embedded needles is not full, new seepage channels will be formed. Utility Model Content

[0003] The purpose of this application is to provide a crack waterproofing and leak-proofing structure with good waterproofing effect.

[0004] In order to achieve the above-mentioned purpose, the present application provides a crack waterproofing and leak-proofing structure on one hand, and the crack waterproofing and leak-proofing structure comprises:

[0005] A building structure having a crack, wherein the crack runs from a first surface of the building structure to a second surface of the building structure, and the crack is filled with a potting glue injected by low-pressure grouting;

[0006] A crack expansion groove is provided on the first surface, the crack expansion groove is dug at the top of the crack and along the extension direction of the crack, and a groove expansion filler is provided in the crack expansion groove, and the groove expansion filler is used to bury the low-pressure grouting base and close the top of the crack; and

[0007] A bottom sealer is disposed on the second surface and covers the bottom of the crack.

[0008] In some specific embodiments, the crack expansion groove is a V-shaped groove.

[0009] In some specific embodiments, the width of the crack expansion groove is greater than or equal to 15 mm and less than or equal to 25 mm.

[0010] In some specific embodiments, the depth of the crack expansion groove is greater than or equal to 15 mm and less than or equal to 25 mm.

[0011] In some specific embodiments, the bottom sealant seals the bottom of the crack along the extension direction of the crack, and the width of the bottom sealant is greater than or equal to 100 mm and less than or equal to 150 mm.

[0012] In some specific embodiments, the grouting glue is injected by low-pressure grouting through a semi-automatic low-pressure grouting device.

[0013] In some specific embodiments, the material of the slot expansion filler and the bottom sealant is epoxy putty; and / or the material of the pouring glue is epoxy putty slurry.

[0014] In some specific embodiments, the crack waterproofing and leak-proofing structure further includes a first existing structural layer arranged outside the crack expansion groove; and / or,

[0015] The crack waterproofing and leak-proofing structure also includes a second existing structural layer arranged outside the bottom sealant.

[0016] In some specific embodiments, the crack waterproofing and leak-proofing structure also includes a plurality of base mounting grooves dug on the crack expansion groove and spaced apart along the extension direction of the crack expansion groove, the base mounting grooves being filled with pouring glue and used for installing the low-pressure grouting base during low-pressure grouting construction.

[0017] In some specific embodiments, the distance between two adjacent base mounting grooves is greater than or equal to 150 mm and less than or equal to 300 mm.

[0018] Through the above technical scheme, the crack waterproof plugging structure of the present application does not need to use electric hammer drilling to pre-embed the grouting needle, which reduces the disturbance to the original structure, especially for buildings that are old and have low concrete strength, and can avoid secondary damage to the structure. In addition, the crack waterproof plugging structure of the present application uses a low-pressure grouting process to grout the cracks, which not only strengthens the cracks in the concrete structure, but also has a waterproof effect. In addition, by digging a crack expansion groove at the top of the crack, it is not only convenient for the installation of the low-pressure grouting base and the subsequent grouting operation, but also makes the crack more sealed during the grouting construction process, making the waterproof construction more convenient, simple and easy to operate.

[0019] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of the crack and crack expansion groove of the utility model is shown;

[0022] Figure 2 A schematic diagram of the structure of the crack and bottom seal of the utility model is shown;

[0023] Figure 3 and Figure 4 They are shown in Figure 1 A schematic diagram of the structure of burying a low-pressure grouting base on the crack expansion groove;

[0024] Figure 5 The semi-automatic low-pressure grouting machine is shown in Figure 4 Structural schematic diagram of low-pressure grouting of the low-pressure grouting base.

[0025] Description of Reference Numerals

[0026] 1 Building structure 11 Cracks

[0027] 12 Crack expansion 121 Groove expansion filling

[0028] 13 Bottom seal 2 Low pressure grouting base

[0029] 3. Semi-automatic low pressure grouting machine DETAILED DESCRIPTION

[0030] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0031] The concrete pouring quality of the older concrete structure is poor and the strength is low. If the waterproof repair method of pre-buried grouting needles along both sides of the cracks and grouting by electric grouting machines is adopted, it will undoubtedly cause deeper damage to the structure. In addition, the equipment maintenance cost of electric grouting machines is relatively high, and it is not easy to repair the equipment when it is blocked.

[0032] In view of this, if Figures 1 to 5 As shown, the utility model provides a crack waterproof plugging structure, which includes a building structure 1, a crack expansion groove 12 and a bottom sealant 13. The building structure 1 has a crack 11, and the crack 11 runs from the first surface of the building structure 1 to the second surface of the building structure 1. The crack 11 is filled with a potting glue injected by low-pressure grouting. The crack expansion groove 12 is arranged on the first surface of the building structure 1, and the crack expansion groove 12 is dug at the top of the crack 11 and along the extension direction of the crack 11. The crack expansion groove 12 is provided with an expansion groove filler 121, and the expansion groove filler 121 is used to bury the low-pressure grouting base 2 and seal the top of the crack 11. The bottom sealant 13 is arranged on the second surface of the building structure 1 and covers the bottom of the crack 11.

[0033] Among them, the grouting glue can be injected by low-pressure grouting through a manual grouting device, or the grouting glue can also be injected by low-pressure grouting through a semi-automatic low-pressure grouting device 3. In this way, there is no need to use an electric hammer to drill holes on the building structure 1 to pre-embed the grouting needle, which reduces the disturbance to the original structure, especially for buildings that are old and have low concrete strength, and can avoid secondary damage to the structure. And the construction operation of low-pressure grouting through a manual grouting device or a semi-automatic low-pressure grouting device 3 is convenient and the equipment cost is low. At the same time, the low-pressure grouting method using the semi-automatic low-pressure grouting device 3 applies the principle of capillary action. The grouting glue can be injected into fine cracks by using pressure and capillary action, which can avoid the shortcomings of unsatisfactory and non-compact grouting of the existing electric grouting method.

[0034] In addition, by digging a crack expansion groove 12 at the top of the crack 11 and setting a bottom seal 13 at the bottom of the crack 11 before low-pressure grouting, the operation is simple and convenient. Moreover, the setting of the crack expansion groove 12 not only facilitates the installation of the low-pressure grouting base 2 and the subsequent grouting operation, but also makes the crack 11 more sealed during the grouting construction process, making the waterproof construction more convenient, simple and easy to operate.

[0035] like Figures 1 to 5 As shown, the building structure 1 is a floor slab, and the crack expansion groove 12 extends and is dug along the center line of the crack 11. The crack expansion groove 12 can be a V-shaped groove, a U-shaped groove or a semicircular groove, etc. When the low-pressure grouting base 2 is buried and fixed, the low-pressure grouting base 2 is pre-buried on the crack expansion groove 12 in a riding manner, and the low-pressure grouting base 2 is pre-buried and fixed by filling the expansion groove filler 121 inside and above the crack expansion groove 12, which can make the fixation of the low-pressure grouting base 2 more stable and the construction operation more convenient and simple. In addition, the crack expansion groove 12 is wider than the width of the crack 11, which is convenient for filling the expansion groove filler 121, so that the crack 11 has better sealing during the grouting construction process.

[0036] It should be noted that the structures of the manual grouting device, the semi-automatic low-pressure grouting device 3 and the low-pressure grouting base 2 are well known to those skilled in the art, and do not belong to the core improvement part of the present application, so they will not be described here in detail.

[0037] In addition, the building structure 1 can be a civil building, an industrial building, a road, bridge, railway building, a hydraulic engineering building, a historical building, etc. Civil buildings include floor slabs, shear walls, beams and columns; industrial buildings include concrete workshops, concrete structures of warehouses, storage tanks, pipelines and large equipment foundations; road, bridge, railway buildings include concrete pavements, bridge decks, bridge foundations, bridge piers, beams, bridge slabs, guardrails, and concrete linings of high-speed railway track slabs, subways, tunnels and underground passages; hydraulic engineering buildings include dams, canals, sewage treatment facilities, ports, docks, breakwaters, sluices, dams, etc.; historical buildings include stone relics, wooden structures, brick structures and other ancient buildings.

[0038] Optionally, the slurry storage capacity of the semi-automatic low-pressure grouting device 3 can be 40-60ML, and the grouting pressure can be 0.5mpa-1.6mpa. The low-pressure grouting base 2 can be a base with four holes, and the outlet diameter is 2-6mm.

[0039] In some specific embodiments, Figure 1 and Figure 2 As shown, the crack expansion groove 12 is a V-shaped groove, which can not only meet the process requirements, but also minimize the damage to the building structure 1 and reduce the amount of expansion groove filler 121. Optionally, the width of the crack expansion groove 12 can be greater than or equal to 15 mm and less than or equal to 25 mm, preferably 20 mm. The depth of the crack expansion groove 12 can be greater than or equal to 15 mm and less than or equal to 25 mm, preferably 20 mm.

[0040] In some specific embodiments, the bottom sealer 13 is sealed on the bottom of the crack 11 along the extension direction of the crack 11, and the width of the bottom sealer 13 is greater than or equal to 100 mm and less than or equal to 150 mm, so that the sealing performance of the crack 11 can be better. Before setting the bottom sealer 13, the putty layers on both sides of the bottom of the crack 11 need to be removed.

[0041] Optionally, the material of the slot filler 121 and the bottom sealant 13 may be epoxy glue, such as modified epoxy resin repair glue. The material of the injection glue may be epoxy glue slurry, such as modified epoxy resin injection grouting material. Modified epoxy glue has the advantages of aging resistance, corrosion resistance, high curing strength, good permeability with concrete, etc.

[0042] In addition, the crack waterproofing and leak-proofing structure may also include a first existing structural layer that is re-set outside the crack expansion groove 12. And / or, the crack waterproofing and leak-proofing structure also includes a second existing structural layer that is re-set outside the bottom seal 13. According to the actual situation on site, if the original first existing structural layer and the second existing structural layer are waterproof structures, the re-set first existing structural layer and the second existing structural layer may be designed according to the specifications and drawings for waterproofing.

[0043] In some specific embodiments, the crack waterproofing and plugging structure may also include a plurality of base mounting grooves (not shown in the figure) dug on the crack expansion groove 12 and spaced apart along the extension direction of the crack expansion groove 12. The base mounting grooves are filled with expansion groove fillers and are used to install the low-pressure grouting base 2 during the low-pressure grouting construction. The shape of the base mounting grooves is adapted to the shape of the low-pressure grouting base 2.

[0044] Optionally, the distance between two adjacent base mounting grooves is greater than or equal to 150 mm and less than or equal to 300 mm. Figure 4As shown, during the construction process, a plurality of low-pressure grouting bases 2 are spaced apart along the extension direction of the crack expansion groove 12, and the distance between two adjacent low-pressure grouting bases 2 is greater than or equal to 150 mm and less than or equal to 300 mm.

[0045] The following will take the floor crack as an example to illustrate the construction process of the crack waterproofing and leak-proofing structure of the present application:

[0046] Clean the base surface → cut the cracks on the board surface and expand the groove 12 → embed the grouting base on the seam → seal the cracks at the bottom of the board → inject modified epoxy injection glue → cure → remove the grouting equipment and grouting base → restore the existing waterproof structure.

[0047] Specifically, the construction steps of the crack waterproofing and leak-proofing structure of the present application are as follows:

[0048] 1. Cut a crack expansion groove 12 along the longitudinal extension direction of the crack 11, with a width of 20 mm and a depth of 20 mm.

[0049] 2. Clean the dust and impurities in the crack expansion groove 12, mix the epoxy mortar according to the proportion, and bury the low-pressure grouting base 2 in the crack. The spacing between the low-pressure grouting bases 2 is 150mm to 300mm.

[0050] 3. Remove the putty layer at the bottom of the board, mix the required amount of epoxy putty according to the proportion, and seal the crack 11 with a sealing width of 100mm to 150mm.

[0051] 4. After the epoxy glue of the sealed crack 11 and the pre-buried low-pressure grouting base 2 is cured, the epoxy glue grouting material is prepared according to the proportion. Since the epoxy grouting material is easy to cure, it should be prepared and used according to the grouting amount to avoid waste of unused materials.

[0052] 5. Use the semi-automatic low-pressure grouting device 3 to inject the epoxy grouting material into the crack 11 until the crack 11 is filled.

[0053] 6. After the modified epoxy grouting material is completely cured, remove the semi-automatic low-pressure grouting device 3 and the low-pressure grouting base 2.

[0054] 7. Restore the roof’s waterproof structure and interior decoration layer to their original state.

[0055] In summary, the crack waterproof plugging structure of the present application adopts the low-pressure grouting process, which not only plays a role in reinforcing the cracks in the concrete structure, but also has a waterproof effect. During grouting and repairing, the epoxy material has good permeability, corrosion resistance, aging resistance, and high curing strength, and is used in conjunction with low-pressure grouting equipment, so that the crack reinforcement and waterproofing of the crack waterproof plugging structure is good, and the construction equipment is portable, the process is simple, and the equipment is easy to operate.

[0056] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0059] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A crack waterproofing and leak plugging structure, characterized in that: include: A building structure (1) having a crack (11), wherein the crack (11) runs from a first surface of the building structure (1) to a second surface of the building structure (1), and the crack (11) is filled with a grouting glue injected by low-pressure grouting; a crack expansion groove (12) disposed on the first surface, the crack expansion groove (12) being dug at the top of the crack (11) and along the extension direction of the crack (11), the crack expansion groove (12) being provided with an expansion groove filler (121), the expansion groove filler (121) being used to bury a low-pressure grouting base (2) and to seal the top of the crack (11); and A bottom sealer (13) is arranged on the second surface and covers the bottom of the crack (11).

2. The crack waterproofing and leak-proofing structure according to claim 1, characterized in that: The crack expansion groove (12) is a V-shaped groove.

3. The crack waterproofing and leak-proofing structure according to claim 1, characterized in that: The width of the crack expansion groove (12) is greater than or equal to 15 mm and less than or equal to 25 mm.

4. The crack waterproofing and leak-proofing structure according to claim 1, characterized in that: The depth of the crack expansion groove (12) is greater than or equal to 15 mm and less than or equal to 25 mm.

5. The crack waterproofing and leak-proofing structure according to claim 1, characterized in that: The bottom seal (13) seals the bottom of the crack (11) along the extension direction of the crack (11), and the width of the bottom seal (13) is greater than or equal to 100 mm and less than or equal to 150 mm.

6. The crack waterproofing and leak-proofing structure according to claim 1, characterized in that: The injection glue is injected by low-pressure injection through a semi-automatic low-pressure grouting device (3).

7. The crack waterproofing and leak-proofing structure according to claim 1, characterized in that: The material of the slot expansion filler (121) and the bottom sealant (13) is epoxy putty; and / or the material of the injection glue is epoxy putty slurry.

8. The crack waterproofing and leak-proofing structure according to claim 1, characterized in that: The crack waterproofing and leak-proofing structure further comprises a first existing structural layer arranged outside the crack expansion groove (12); and / or, The crack waterproofing and leak-proofing structure also includes a second existing structural layer arranged outside the bottom sealant (13).

9. The crack waterproofing and leak-proofing structure according to claim 1, characterized in that: The crack waterproofing and leak-proofing structure also includes a plurality of base installation grooves dug on the crack expansion groove (12) and spaced apart along the extension direction of the crack expansion groove (12); the base installation grooves are filled with the expansion groove filler and are used to install the low-pressure grouting base (2) during low-pressure grouting construction.

10. The crack waterproofing and leak-proofing structure according to claim 9, characterized in that: The distance between two adjacent base mounting grooves is greater than or equal to 150 mm and less than or equal to 300 mm.

Images