CN215442457U - Waterproof joint-filling structure of building deformation joint - Google Patents
Waterproof joint-filling structure of building deformation joint Download PDFInfo
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- CN215442457U CN215442457U CN202121875853.1U CN202121875853U CN215442457U CN 215442457 U CN215442457 U CN 215442457U CN 202121875853 U CN202121875853 U CN 202121875853U CN 215442457 U CN215442457 U CN 215442457U
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Abstract
The utility model discloses a waterproof crack-repairing structure of a building deformation joint, which comprises a deformation joint arranged on a concrete base surface. The upper end of the concrete base surface is provided with a chiseling groove communicated with the deformation joint, the bottom of the chiseling groove is provided with a plurality of grouting holes located on two sides of the deformation joint along the length direction of the chiseling groove, and water stopping needle heads used for pouring acrylate slurry into the concrete base surface are buried in the grouting holes. The bottom wall and the side wall of the chiseling groove are sequentially coated with a quick-setting water non-leakage layer, an epoxy mortar layer and an epoxy adhesive layer, and a rubber water stop strip which is hermetically attached to the epoxy adhesive layer is embedded in the chiseling groove. The waterproof crack repairing structure can effectively inhibit the leakage phenomenon of the deformation joint, and has the advantages of lasting protection effect and good stability.
Description
Technical Field
The utility model relates to the field of building construction, in particular to a waterproof joint filling structure for a building deformation joint.
Background
In industrial and civil buildings, in order to avoid the influence of factors such as air temperature change, uneven foundation settlement, earthquake and the like, the buildings can break structures at deformation sensitive parts in advance, and certain gaps are reserved, so that the buildings at all parts have enough deformation width in the gaps, the buildings cannot be damaged, and the safety of the building structures is ensured. During building construction, waterproof design needs to be carried out on the deformation joint positions, and the waterproof design of the deformation joints at present mainly adopts a rubber water stop belt, a foam plastic rod and other modes to design and construct a waterproof structure according to a relevant method recommended in underground engineering waterproof design specifications. The construction method is limited by construction level, the rubber waterstop and the foam plastic rod are difficult to accurately position and effectively protect in many times, the concrete pouring process can be damaged or shifted, water leakage paths are caused, particularly, underground engineering in the south is prone to rainfall, the water level is high, leakage of deformation joints is easy to occur, and the construction method not only harms the safety and stability of the building structure, but also influences the use function of the building.
As is known, the repair of deformation joints belongs to a building part which is relatively complex and difficult to construct, and the repair of the deformation joints is most likely to occur frequently. For the leakage maintenance of deformation joints, a plurality of different treatment schemes are available on the market, for example, polyurethane grouting materials and water glass are adopted for grouting, cement mortar, sealing paste and waterproof paint are adopted for filling, the treatment effect is unsatisfactory, long-term leakage prevention is difficult to achieve, and certain leakage risk exists.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims to provide a waterproof joint repairing structure for a building deformation joint, which can effectively inhibit the leakage phenomenon of the deformation joint, and has the advantages of lasting protection effect and good stability.
In order to achieve the above purposes, the utility model adopts the technical scheme that: a waterproof crack-repairing structure for deformation joints of buildings comprises deformation joints arranged on a concrete base surface. The upper end of the concrete base surface is provided with a chiseling groove communicated with the deformation joint, the bottom of the chiseling groove is provided with a plurality of grouting holes located on two sides of the deformation joint along the length direction of the chiseling groove, and water stopping needle heads used for pouring acrylate slurry into the concrete base surface are buried in the grouting holes. The bottom wall and the side wall of the chiseling groove are sequentially coated with a quick-setting water non-leakage layer, an epoxy mortar layer and an epoxy adhesive layer, and a rubber water stop strip which is hermetically attached to the epoxy adhesive layer is embedded in the chiseling groove.
The utility model has the beneficial effects that: firstly, pouring acrylate slurry into a concrete base surface through a water stopping needle head embedded in a grouting hole, pouring the low-viscosity acrylate slurry into a fine gap in the concrete base surface, and bonding the low-viscosity acrylate slurry with the concrete base surface to seal the fine gap inside the concrete base surface; then quickly plugging and sealing the water-stopping needle head through the quick-setting water-tight layer, preventing the water seepage and the damp phenomenon of concrete at the chiseled groove, and playing a primary waterproof role; the epoxy mortar layer bears the back water pressure, and the thermal expansion coefficient of the epoxy mortar layer is close to that of concrete, so that the epoxy mortar layer has better anti-permeability and anti-water pressure capabilities, and can effectively prevent the deformation joint from leakage again; the epoxy adhesive layer improves the adhesive force among all layers and bears certain back water pressure; and finally, the rubber water stop strip expands when meeting water to achieve the purpose of water stopping, and the waterproof function of the rubber water stop strip is further enhanced. The waterproof crack filling structure can effectively solve the problems of repeated leakage and poor durability of the deformation joint through a multilayer waterproof structure so as to inhibit the leakage phenomenon of the deformation joint, and has the advantages of lasting protection effect and good stability.
Further, grouting holes on two sides of the deformation joint are arranged in a staggered mode, and the distance between every two adjacent grouting holes on the same side of the deformation joint is 30-50 cm. The grouting holes arranged in a staggered mode can more comprehensively cover the positions, needing to be waterproof, on the concrete base surface, and the deformation joint waterproof treatment effect is further improved.
Further, the grouting hole is arranged in the vertical direction, and one end of the water stopping needle penetrates out of the bottom of the grouting hole and penetrates into the concrete base.
Further, the upper end of the concrete base surface is also provided with a steel plate pressing strip capable of covering the chiseling groove in a pressing mode. The waterproof layers in the chiseling grooves can be protected through the steel plate pressing strips, and meanwhile, the overall attractiveness of the waterproof leakage repairing structure is improved.
Further, the cross sections of the quick-setting water-tight layer, the epoxy mortar layer and the epoxy adhesive layer are all in right-angle U-shaped structures.
Furthermore, the cross section of the rubber water stop strip is of a rectangular structure, and the expansion rate of the rubber water stop strip is 200-250%, so that the rubber water stop strip is ensured to expand in the presence of water to achieve the purpose of water stopping, and the reduction of the impermeability caused by the reduction of the strength of the rubber water stop strip due to the overlarge expansion rate is avoided.
Further, the thickness of the quick-setting type water-tight layer is 1mm, the thickness of the epoxy mortar layer is 10mm, and the thickness of the epoxy adhesive layer is 0.1 mm.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure:
1-a concrete base surface; 11-chiseling the groove; 2-deformation joint; 3-grouting holes; 4-water stopping needle head; 5-quick-setting water-proof layer; 6-epoxy mortar layer; 7-epoxy adhesive layer; 8-rubber water stop strips; and 9-pressing strips of steel plates.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Examples
Referring to the attached drawings 1-2, the waterproof crack sealing structure for the deformation joint of the building comprises a deformation joint 2 arranged on a concrete base surface 1. The upper end of the concrete base surface 1 is provided with a chiseling groove 11 communicated with the deformation joint 2, the bottom of the chiseling groove 11 is provided with a plurality of grouting holes 3 located on two sides of the deformation joint 2 along the length direction of the chiseling groove, and water stopping needle heads 4 used for pouring acrylate slurry into the concrete base surface 1 are buried in the grouting holes 3. The bottom wall and the side wall of the chiseling groove 11 are sequentially coated with a quick-setting water-tight layer 5, an epoxy mortar layer 6 and an epoxy adhesive layer 7, and a rubber water stop strip 8 which is hermetically attached to the epoxy adhesive layer 7 is embedded in the chiseling groove 11. The upper end of the concrete base surface 1 is also provided with a steel plate pressing strip 9 which can cover the chiseling groove 11 in a pressing mode.
In the embodiment, the grouting holes 3 on two sides of the deformation joint 2 are arranged in a staggered manner, and the distance between two adjacent grouting holes 3 on the same side of the deformation joint 2 is 30-50 cm. The grouting holes 3 which are arranged in a staggered mode can more comprehensively cover the parts, needing to be waterproof, on the concrete base surface 1, and the deformation joint waterproof treatment effect is further improved.
The grouting hole 3 is arranged in the vertical direction, and one end of the water stopping needle head 4 penetrates out of the bottom of the grouting hole 3 and penetrates into the concrete base surface 1.
The cross sections of the quick-setting water non-leakage layer 5, the epoxy mortar layer 6 and the epoxy adhesive layer 7 are all in right-angle U-shaped structures. The thickness of the quick-setting type water-tight layer 5 is 1mm, the thickness of the epoxy mortar layer 6 is 10mm, and the thickness of the epoxy adhesive layer 7 is 0.1 mm.
The cross section of the rubber water stop strip 8 is of a rectangular structure, the expansion rate of the rubber water stop strip 8 is 200-250%, and the rubber water stop strip 8 with the expansion rate of 200-250% ensures that the rubber water stop strip 8 expands when meeting water to achieve the water stop purpose, and avoids the reduction of the impermeability caused by the reduction of the strength of the rubber water stop strip 8 due to the overlarge expansion rate.
Firstly, injecting acrylate slurry into a concrete base surface through a water stopping needle head embedded in a grouting hole, injecting low-viscosity acrylate slurry into a fine gap in the concrete base surface, and bonding the low-viscosity acrylate slurry with the concrete base surface to seal the fine gap in the concrete base surface so as to achieve the aim of preventing water on the base; then, quickly plugging and sealing the water-stopping needle head through a quick-setting water-tight layer to prevent the water seepage and the damp phenomenon of concrete at the chiseled groove, thereby achieving the purpose of primarily preventing the deformation joint from being waterproofed; the epoxy mortar layer bears the back water pressure, and the thermal expansion coefficient of the epoxy mortar layer is close to that of concrete, so that the epoxy mortar layer has better anti-permeability and anti-water pressure capabilities, and can effectively prevent the deformation joint from leakage again; the epoxy adhesive layer improves the adhesive force among all layers and bears certain back water pressure; the rubber water stop strip expands when meeting water so as to achieve the purpose of water stop and further enhance the waterproof function of the rubber water stop strip. And finally, the waterproof layers in the chiseled grooves can be protected by arranging the steel plate pressing strips, and the overall attractiveness of the waterproof leakage repairing structure is improved. The waterproof crack filling structure of this embodiment can effectively solve the deformation joint problem of seepage repeatedly, durability poor through multilayer waterproof construction to restrain the seepage phenomenon of deformation joint, the protecting effect is lasting, and stability is good.
In the present embodiment, the amount of the inorganic particles, in mass percentage,
the formula of the acrylate slurry is as follows: 20 to 40 percent of magnesium acrylate, 2 to 6 percent of diethanol diacrylate, 0.2 to 0.5 percent of ammonium persulfate, 0.2 to 0.5 percent of tetramethyl ethylenediamine and 60 to 80 percent of water.
The formula of the quick-setting water-proof layer comprises the following components: 30-45% of ordinary Portland 425 cement, 30-45% of calcium sulphoaluminate cementing material, 8-15% of anhydrite powder, 1-3% of sodium silicate, 0.2-0.5% of HPMC and 5-10% of rubber powder.
The formula of the epoxy mortar layer is as follows: an agent A: 85% of 128 epoxy resin and 15% of reactive diluent; and (2) agent B: modifying polyether amine; c, agent C: 33% of cement and 67% of fine sand, wherein the ratio of the agent A to the agent B to the agent C is as follows: 10:3:48.
The formula of the epoxy adhesive layer is as follows: an agent A: 40% 128 epoxy resin, 5% 622 reactive diluent, 5% AGE reactive diluent, 50% alumina; and (2) agent B: TX-801 elastic epoxy curing agent, and the proportion of the agent A and the agent B is as follows: 5:2.
The construction process of the waterproof crack sealing structure of the embodiment is as follows: firstly, checking and confirming the leakage position of a deformation joint, dismantling and cutting a built-in water stop belt and a foam plate, then chiseling the deformation joint and cleaning garbage in the deformation joint to form a chiseling groove; then, drilling grouting holes at the two sides of the deformation joint at intervals of 30-50cm, embedding the water stopping needle in the grouting hole to be grouted, and grouting by using acrylate grouting material; then the water-stopping needle head is dismantled, and the position of the water-stopping needle head is sealed by adopting a quick-setting type water-proof and scraping the surface of the chiseled groove, wherein the dosage is 1.5kg/m21mm in thickness, and then repairing the chiseled groove surface by adopting epoxy mortar to ensure that the chiseled groove surface is flat, wherein the using amount is 15kg/m2The thickness is 10mm, the construction size in the chiseled groove is kept consistent in the repairing process, the inside and the outside are consistent, and then a layer of epoxy adhesive is coated, the using amount is 0.1kg/m20.1mm in thickness; then the rubber water stop strip is embedded into the chiseling groove, the rubber strip is slowly pressed in from one end of the deformation joint, the rubber strip cannot be damaged, and finally the decorative panel is fixed and recovered by the steel plate pressing strip.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. A waterproof crack-repairing structure of a building deformation joint comprises a deformation joint arranged on a concrete base surface; the method is characterized in that: the upper end of the concrete base surface is provided with a chiseling groove communicated with the deformation joint, the bottom of the chiseling groove is provided with a plurality of grouting holes positioned at two sides of the deformation joint along the length direction, and water stopping needle heads used for pouring acrylate slurry into the concrete base surface are embedded in the grouting holes; the bottom wall and the side wall of the chiseling groove are sequentially coated with a quick-setting water non-leakage layer, an epoxy mortar layer and an epoxy adhesive layer, and a rubber water stop strip which is hermetically attached to the epoxy adhesive layer is embedded in the chiseling groove.
2. The waterproof caulking structure according to claim 1, wherein: the grouting holes on the two sides of the deformation joint are arranged in a staggered mode, and the distance between every two adjacent grouting holes on the same side of the deformation joint is 30-50 cm.
3. The waterproof caulking structure according to claim 1, wherein: the grouting hole is arranged in the vertical direction, and one end of the water stopping needle head penetrates out of the bottom of the grouting hole and penetrates into the concrete base.
4. The waterproof caulking structure according to claim 1, wherein: and a steel plate pressing strip capable of covering the chiseling groove is pressed at the upper end of the concrete base surface.
5. The waterproof caulking structure according to any one of claims 1 to 4, wherein: the cross sections of the quick-setting water non-leakage layer, the epoxy mortar layer and the epoxy adhesive layer are all in right-angle U-shaped structures.
6. The waterproof caulking structure according to claim 5, wherein: the cross section of the rubber water stop strip is of a rectangular structure, and the expansion rate of the rubber water stop strip is 200-250%.
7. The waterproof caulking structure according to claim 5, wherein: the thickness of the quick-setting type water-tight layer is 1mm, the thickness of the epoxy mortar layer is 10mm, and the thickness of the epoxy adhesive layer is 0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121875853.1U CN215442457U (en) | 2021-08-11 | 2021-08-11 | Waterproof joint-filling structure of building deformation joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121875853.1U CN215442457U (en) | 2021-08-11 | 2021-08-11 | Waterproof joint-filling structure of building deformation joint |
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| Publication Number | Publication Date |
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| CN215442457U true CN215442457U (en) | 2022-01-07 |
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| CN202121875853.1U Active CN215442457U (en) | 2021-08-11 | 2021-08-11 | Waterproof joint-filling structure of building deformation joint |
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2021
- 2021-08-11 CN CN202121875853.1U patent/CN215442457U/en active Active
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