Trinity plugging method

Abstract

The present application relates to waterproof construction technical field, proposed trinity leak stoppage method, in turn includes the following steps: drilling, installing grouting pipe, sealing, grouting, closing grouting mouth, building waterproof layer in leakage point; When sealing, adopt the leak stoppage type epoxy modified leak stoppage glue to carry out closed treatment; When grouting, adopt the acrylic salt grouting fluid to carry out twice grouting treatment; When closing grouting mouth, adopt leak stoppage material to repair and close grouting mouth; When building waterproof layer, adopt the anti-permeation type epoxy modified leak stoppage glue and fiber reinforced anti-permeation film from inside to outside in turn. Through the above technical scheme, the problem of poor durability of single grouting water stop process in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of waterproofing construction technology, specifically to a three-in-one leak-stopping method. Background Technology

[0002] Civil buildings are essential places for people's daily work and life, and the quality of a building directly affects everyone's interests. Leakage is a common problem in building construction; basement leaks, roof leaks, exterior wall leaks, bathroom leaks—leaks are likely to appear wherever water is frequently used. Ignoring leakage problems will inevitably affect people's quality of life and work, and leakage problems will also cause great trouble for building builders in construction quality management and future maintenance. Therefore, it is urgent to develop novel and effective methods for preventing building leaks.

[0003] Traditional single-method grouting for building leak repair mainly uses polyurethane grout or water-curing agents, employing single-pipe or double-pipe grouting machines for water sealing. This involves densely arranging grouting holes in the leaking wall and injecting polyurethane grout. The polyurethane grout foams upon contact with water, sealing the cracks and achieving the purpose of stopping the leak. This method has advantages such as rapid water sealing, high foaming rate, and good low-temperature resistance. However, because the grouting hole depth is generally two-thirds of the wall thickness and the polyurethane grout has a high expansion rate, it can easily cause cracks in the wall after expansion. The dense grouting holes can also damage the building's strength, reducing its service life, and the rate of re-leakage after expansion and shrinkage is relatively high. Therefore, developing a comprehensive leak-stopping method that offers superior performance, adaptability to complex environments, and integrates water sealing, leak sealing, and reinforcement will have broad market potential and significant application value. Summary of the Invention

[0004] This invention proposes a three-in-one leak-stopping method, which solves the problem of poor leak-stopping durability of the single grouting water-stopping process in related technologies.

[0005] The technical solution of the present invention is as follows: This invention proposes a three-in-one leak sealing method, which includes the following steps in sequence: drilling at the leakage point, installing grouting pipes, sealing the crack, grouting, sealing the grouting port, and constructing a waterproof layer; When sealing the seam, a leak-stopping epoxy-modified sealant is used to seal the leak point. During the grouting process, an acrylate grouting solution is used to perform two grouting treatments at the sealing joint. When sealing the grouting port, a leak-stopping material is used to repair and seal the grouting port; When constructing the waterproof layer, an impermeable epoxy-modified sealing adhesive and a fiber-reinforced impermeable membrane are used sequentially from the inside out.

[0006] As a further technical solution, the thickness of the impermeable epoxy modified sealing adhesive is 3~5mm.

[0007] As a further technical solution, the thickness of the fiber-reinforced impermeable membrane is 0.6~0.7mm.

[0008] As a further technical solution, the surface of the leakage point is cleaned before drilling.

[0009] As a further technical solution, the depth of the borehole must penetrate the foundation concrete so that water can flow out of the borehole.

[0010] As a further technical solution, the leak-stopping epoxy modified sealant comprises the following components in parts by weight: 75-80 parts of quick-setting sulfoaluminate cement, 20-27 parts of silica fume, 5-10 parts of phenolic epoxy adhesive powder, 0.3-0.5 parts of water-reducing agent, 1-3 parts of quick-setting agent, and 1-2 parts of waterproof powder.

[0011] As a further technical solution, the impermeable epoxy modified sealing adhesive comprises the following components in parts by weight: 60-75 parts of early-strength and rapid-hardening sulfoaluminate cement, 25-32 parts of silica fume, 5-10 parts of phenolic epoxy adhesive powder, 0.3-0.5 parts of water-reducing agent, 1-3 parts of early-strength agent, 0.5-1 part of cellulose, and 3-5 parts of waterproof powder.

[0012] As a further technical solution, the quick-setting agent is one or more of anhydrous lithium chloride and lithium carbonate; the early-strength agent is one or more of anhydrous calcium chloride, sodium chloride, aluminum chloride, and calcium nitrate.

[0013] As a further technical solution, the water-reducing agent is one or two of sodium lignosulfonate and calcium lignosulfonate; the waterproof powder is one or two of HY-FS09 waterproof powder and GB-6 type waterproof powder.

[0014] As a further technical solution, the diameter of the drill bit used for drilling is 20~25mm.

[0015] As a further technical solution, the grouting pressure during grouting is 0.5~1.0MPa.

[0016] As a further technical solution, the fiber-reinforced impermeable membrane comprises, from the inside out, a polyester fiber layer and a high-density polyethylene layer.

[0017] As a further technical solution, the raw materials of the polyester fiber layer include 100 parts of polyester particles and 2-4 parts of softener.

[0018] As a further technical solution, the softener comprises epoxy-modified polysiloxane and amino-modified polysiloxane in a mass ratio of 8:2 to 6:4.

[0019] In this invention, by treating polyester fibers with epoxy-modified polysiloxane and amino-modified polysiloxane in a mass ratio of 8:2 to 6:4, the softness of the polyester fibers can be improved, and the bonding force between the polyester fibers and the high-density polyethylene layer can be enhanced, thereby further improving the durability of the grouting and sealing process.

[0020] As a further technical solution, the raw material of the high-density polyethylene layer includes the following components in parts by weight: 100 parts of high-density polyethylene, 5-10 parts of silicon dioxide, and 0.5-1 parts of antioxidant.

[0021] As a further technical solution, the method for preparing the fiber-reinforced impermeable membrane includes the following steps: S1. Mix the components of the high-density polyethylene layer to obtain a preliminary mixture; S2. Melt-spin polyester granules, hot-roll them, soak them in a softener, and hot-roll them again to obtain a polyester fiber layer. S3. The initial mixture is extruded onto the upper surface of the polyester fiber layer and calendered to obtain a fiber-reinforced impermeable membrane.

[0022] As a further technical solution, the antioxidant is one or more of antioxidant 1010, antioxidant 1024, antioxidant 168, and antioxidant 251.

[0023] The working principle and beneficial effects of this invention are as follows: In this invention, the three-in-one leak sealing process involves rebuilding the waterproof layer curtain on the water-facing side of the building's concrete to repair the damaged and ineffective waterproof layer. A leak-sealing epoxy-modified sealant is used to seal the cracks at the leakage points, which not only blocks the cracks to prevent grout leakage but also reinforces the building to prevent crack expansion. Simultaneously, an impermeable epoxy-modified sealant with a fiber-reinforced impermeable membrane is used to strengthen the waterproofing on the back side of the building, significantly improving the durability of the grouting leak-sealing process. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] In the following examples and comparative examples, the sealing material used was YA-2 sealing agent; the high-density polyethylene was 7000F; the acrylate grout was HJ501N; the epoxy-modified polysiloxane was SH-9614; the amino-modified polysiloxane was OFX-8468; the quick-setting sulfoaluminate cement, type ⅠⅠ, was purchased from Yangquan Tianlong Engineering Materials Co., Ltd.; and the early-strength, fast-hardening sulfoaluminate cement, type Ⅰ, was purchased from Yangquan Tianlong Engineering Materials Co., Ltd.

[0026] Example 1 The three-in-one leak sealing method includes the following steps in sequence: Cleaning: Inspect and analyze the leakage situation, clean the area to be constructed, remove the 100mm leveling layer on the top surface of the concrete base, and ensure that the surface is clean and moist. Drilling: Use an electric drill to drill a hole along the leak point. The drill bit diameter is 20mm, and the drilling angle is perpendicular to the plane where the leak point is located. The drilling depth must penetrate the foundation concrete so that the water can be discharged from the hole. Install grouting conduit: Install the conduit inside the drilled hole, ensuring there are no gaps or leaks between it and the drilled hole; Sealing: Seal the surface of the cracks where water seepage occurs using a leak-proof epoxy-modified sealant; Grouting: The grouting sequence starts from one end and proceeds one hole at a time. The grouting pressure is 0.5MPa. When grouting, first use acrylate grouting liquid to grout the leaking point until the leakage disappears, and then inject acrylate grouting liquid to seal the tiny seepage channels. Disassembly: After grouting is completed and it is confirmed that there is no leakage, the exposed grouting nozzle can be removed, and any excess grout that has solidified and leaked out can be cleaned up. Sealing the grouting port: Repairing and sealing the grouting port with leak-sealing material; Constructing the waterproof layer: Finally, from the inside out, the waterproof layer is constructed by using an impermeable epoxy-modified sealant and a fiber-reinforced impermeable membrane, and the construction area is restored with a concrete leveling layer; the thickness of the impermeable epoxy-modified sealant is 3mm; the thickness of the fiber-reinforced impermeable membrane is 0.6mm. The epoxy-modified sealant for sealing leaks includes the following components by weight: 75 parts of quick-setting sulfoaluminate cement, 20 parts of silica fume, 5 parts of phenolic epoxy powder, 0.3 parts of sodium lignosulfonate, 1 part of anhydrous lithium chloride, and 1 part of HY-FS09 waterproof powder. The impermeable epoxy modified sealant comprises the following components by weight: 60 parts of early-strength and rapid-hardening sulfoaluminate cement, 25 parts of silica fume, 5 parts of phenolic epoxy powder, 0.3 parts of calcium lignosulfonate, 1 part of anhydrous calcium chloride, 0.5 parts of cellulose, and 3 parts of GB-6 type waterproof powder. The fiber-reinforced impermeable membrane consists of a polyester fiber layer and a high-density polyethylene layer from the inside out. The raw material for the polyester fiber layer includes 100 parts of polyester granules; The raw materials for the high-density polyethylene layer include the following components in parts by weight: 100 parts high-density polyethylene, 5 parts silica, and 0.5 parts antioxidant 168. The preparation method of fiber-reinforced antipermeable membrane includes the following steps: S1. Mix the components of the high-density polyethylene layer to obtain a preliminary mixture; S2. Melt-spin the polyester particles and hot-roll them to obtain a polyester fiber layer; S3. The initial mixture is extruded onto the upper surface of the polyester fiber layer and calendered to obtain a fiber-reinforced impermeable membrane.

[0027] Example 2 The three-in-one leak sealing method includes the following steps in sequence: Cleaning: Inspect and analyze the leakage situation, clean the area to be constructed, remove the 100mm leveling layer on the top surface of the concrete base, and ensure that the surface is clean and moist. Drilling: Use an electric drill to drill a hole along the leak point. The drill bit diameter is 25mm, and the drilling angle is perpendicular to the plane where the leak point is located. The drilling depth must penetrate the foundation concrete so that the water can be discharged from the hole. Install grouting conduit: Install the conduit inside the drilled hole, ensuring there are no gaps or leaks between it and the drilled hole; Sealing: Seal the surface of the cracks where water seepage occurs using a leak-proof epoxy-modified sealant; Grouting: The grouting sequence starts from one end and proceeds one hole at a time. The grouting pressure is 1.0 MPa. When grouting, first use acrylate grouting liquid to grout the leaking point until the leakage disappears, and then inject acrylate grouting liquid to seal the tiny seepage channels. Disassembly: After grouting is completed and it is confirmed that there is no leakage, the exposed grouting nozzle can be removed, and any excess grout that has solidified and leaked out can be cleaned up. Sealing the grouting port: Repairing and sealing the grouting port with leak-sealing material; Constructing the waterproof layer: Finally, from the inside out, the waterproof layer is constructed by using an impermeable epoxy modified sealant and a fiber-reinforced impermeable membrane, and the construction area is restored with a concrete leveling layer; the thickness of the impermeable epoxy modified sealant is 5mm, and the thickness of the fiber-reinforced impermeable membrane is 0.7mm. The leak-stopping epoxy modified sealant includes the following components by weight: 80 parts of quick-setting sulfoaluminate cement, 24 parts of silica fume, 7 parts of phenolic epoxy powder, 0.4 parts of calcium lignosulfonate, 2 parts of anhydrous lithium chloride, and 1.5 parts of HY-FS09 waterproof powder. The impermeable epoxy modified sealant comprises the following components by weight: 70 parts of early-strength and rapid-hardening sulfoaluminate cement, 28 parts of silica fume, 8 parts of phenolic epoxy powder, 0.4 parts of calcium lignosulfonate, 2 parts of anhydrous calcium chloride, 0.7 parts of cellulose, and 4 parts of HY-FS09 waterproof powder. The fiber-reinforced impermeable membrane consists of a polyester fiber layer and a high-density polyethylene layer from the inside out. The raw material for the polyester fiber layer includes 100 parts of polyester granules; The raw materials for the high-density polyethylene layer include the following components in parts by weight: 100 parts high-density polyethylene, 7 parts silica, and 0.7 parts antioxidant 168. The preparation method of fiber-reinforced antipermeable membrane includes the following steps: S1. Mix the components of the high-density polyethylene layer to obtain a preliminary mixture; S2. Melt-spin the polyester particles and hot-roll them to obtain a polyester fiber layer; S3. The initial mixture is extruded onto the upper surface of the polyester fiber layer and calendered to obtain a fiber-reinforced impermeable membrane.

[0028] Example 3 The difference between this embodiment and embodiment 2 is that the leak-stopping epoxy modified sealant includes the following components in parts by weight: 80 parts of quick-setting sulfoaluminate cement, 27 parts of silica fume, 10 parts of phenolic epoxy resin powder, 0.5 parts of calcium lignosulfonate, 3 parts of anhydrous lithium chloride, and 2 parts of HY-FS09 waterproof powder. The impermeable epoxy modified sealant comprises the following components by weight: 75 parts of early-strength and fast-hardening sulfoaluminate cement, 32 parts of silica fume, 10 parts of phenolic epoxy powder, 0.5 parts of calcium lignosulfonate, 3 parts of anhydrous calcium chloride, 1 part of cellulose, and 5 parts of HY-FS09 waterproof powder. The fiber-reinforced impermeable membrane consists of a polyester fiber layer and a high-density polyethylene layer from the inside out. The raw material for the polyester fiber layer includes 100 parts of polyester granules; The raw materials for the high-density polyethylene layer include the following components in parts by weight: 100 parts high-density polyethylene, 10 parts silica, and 1 part antioxidant 168.

[0029] Example 4 The only difference between this embodiment and Embodiment 3 is that the raw materials for the polyester fiber layer include 100 parts of polyester particles and 2 parts of epoxy-modified polysiloxane. The preparation method of fiber-reinforced antipermeable membrane includes the following steps: S1. Mix the components of the high-density polyethylene layer to obtain a preliminary mixture; S2. Polyester granules are melt-spun, hot-rolled, soaked in an aqueous solution of epoxy-modified polysiloxane, and then dried to obtain a polyester fiber layer; the mass fraction of epoxy-modified polysiloxane in the aqueous solution is 15%. S3. The initial mixture is extruded onto the upper surface of the polyester fiber layer and calendered to obtain a fiber-reinforced impermeable membrane.

[0030] Example 5 The only difference between this embodiment and Embodiment 4 is that the raw materials for the polyester fiber layer include 100 parts of polyester particles and 4 parts of epoxy-modified polysiloxane.

[0031] Example 6 The only difference between this embodiment and embodiment 4 is that the raw materials for the polyester fiber layer include 100 parts of polyester particles and 2 parts of amino-modified polysiloxane. The preparation method of fiber-reinforced antipermeable membrane includes the following steps: S1. Mix the components of the high-density polyethylene layer to obtain a preliminary mixture; S2. Polyester granules are melt-spun, hot-rolled, soaked in an aqueous solution of amino-modified polysiloxane, and then dried to obtain a polyester fiber layer; the mass fraction of amino-modified polysiloxane in the aqueous solution is 15%. S3. The initial mixture is extruded onto the upper surface of the polyester fiber layer and calendered to obtain a fiber-reinforced impermeable membrane.

[0032] Example 7 The only difference between this embodiment and Embodiment 4 is that the raw materials for the polyester fiber layer include 100 parts of polyester particles, 9 parts of epoxy-modified polysiloxane, and 1 part of amino-modified polysiloxane. The preparation method of fiber-reinforced antipermeable membrane includes the following steps: S1. Mix the components of the high-density polyethylene layer to obtain a preliminary mixture; S2. Polyester granules are melt-spun, hot-rolled, soaked in an aqueous solution of epoxy-modified polysiloxane and amino-modified polysiloxane, and then dried to obtain a polyester fiber layer; the total mass fraction of epoxy-modified polysiloxane and amino-modified polysiloxane added to the aqueous solution is 15%; S3. The initial mixture is extruded onto the upper surface of the polyester fiber layer and calendered to obtain a fiber-reinforced impermeable membrane.

[0033] Example 8 The only difference between this embodiment and Embodiment 7 is that the raw materials for the polyester fiber layer include 100 parts of polyester particles, 1 part of epoxy-modified polysiloxane, and 1 part of amino-modified polysiloxane.

[0034] Example 9 The only difference between this embodiment and Embodiment 7 is that the raw materials for the polyester fiber layer include 100 parts of polyester particles, 1.6 parts of epoxy-modified polysiloxane, and 0.4 parts of amino-modified polysiloxane.

[0035] Example 10 The only difference between this embodiment and Embodiment 7 is that the raw materials for the polyester fiber layer include 100 parts of polyester particles, 1.2 parts of epoxy-modified polysiloxane, and 0.8 parts of amino-modified polysiloxane.

[0036] Comparative Example 1 The only difference between this comparative example and Example 3 is that only an impermeable epoxy-modified sealant is used as the waterproof layer when constructing the waterproof layer.

[0037] Comparative Example 2 The only difference between this comparative example and Example 3 is that only a fiber-reinforced impermeable membrane is used as the waterproof layer when constructing the waterproof layer.

[0038] Comparative Example 3 The only difference between this comparative example and Example 3 is that when constructing the waterproof layer, a leak-stopping epoxy-modified sealant and a fiber-reinforced impermeable membrane are used sequentially from the inside to the outside to construct the waterproof layer; the leak-stopping epoxy-modified sealant includes the following components in parts by weight: 80 parts of quick-setting sulfoaluminate cement, 27 parts of silica fume powder, 10 parts of phenolic epoxy adhesive powder, 0.5 parts of calcium lignosulfonate, 3 parts of anhydrous lithium chloride, and 2 parts of HY-FS09 waterproof powder.

[0039] Comparative Example 4 The only difference between this comparative example and Example 3 is that an impermeable epoxy modified sealant is used for sealing the joints; the impermeable epoxy modified sealant comprises the following components in parts by weight: 75 parts of early-strength and rapid-hardening sulfoaluminate cement, 32 parts of silica fume, 10 parts of phenolic epoxy powder, 0.5 parts of calcium lignosulfonate, 3 parts of anhydrous calcium chloride, 1 part of cellulose, and 5 parts of HY-FS09 waterproof powder.

[0040] According to standard GB 23440-2009 "Inorganic Waterproof and Leak-stopping Materials", the impermeability of the leak-stopping materials obtained by the three-in-one leak-stopping method in Examples 1-10 and Comparative Examples 1-4 was tested, and the results are shown in Table 1. The compressive strength of the leak-stopping materials obtained by the three-in-one leak-stopping method in Examples 1-3 and Comparative Examples 1-4 was tested, and the results are shown in Table 2. Table 1. Results of impermeability test

[0041] Comparing the data from Examples 1-10 and Comparative Examples 1-4, it was found that, compared with Comparative Examples 1-4, the leak-stopping method of Examples 1-10 had higher anti-seepage pressure. After treatment at 100℃ for 5 hours, there was still no cracking, peeling, or flaking. This indicates that grouting the leak point to reconstruct the waterproof curtain on the water-facing side of the building concrete, using a leak-stopping epoxy-modified sealant to seal the cracks at the leak point, and simultaneously using an anti-seepage epoxy-modified sealant with fiber-reinforced anti-seepage membrane to reinforce the waterproofing on the back side of the building can significantly improve the durability of the grouting leak-stopping process.

[0042] Comparing the data from Examples 3-10, it was found that compared with Examples 3-8, the leak-stopping method obtained by using Examples 9-10 had higher anti-seepage pressure during leak-stopping. After treatment at 100℃ for 5 hours, there was no cracking, peeling, or flaking. This indicates that using epoxy-modified polysiloxane and amino-modified polysiloxane in a mass ratio of 8:2 to 6:4 further improved the durability of the leak-stopping process after grouting.

[0043] Table 2 Compressive strength test results

[0044] By comparing the data of Examples 1-3 and Comparative Examples 1-4, it was found that the compressive strength was higher when the leakage was plugged using the method of Examples 1-3 compared with Comparative Examples 1-4. This indicates that by using the leak-stopping epoxy modified sealant to seal the cracks at the leakage point, and by using the impermeable epoxy modified sealant plus fiber-reinforced impermeable membrane to strengthen the waterproofing of the back side of the building, the compressive strength after the grouting water-stopping process can be improved.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-in-one leak sealing method, characterized in that, The steps are as follows: Drilling at the leakage point, installing grouting pipes, sealing the crack, grouting, sealing the grouting port, and constructing a waterproof layer; When sealing the seam, a leak-stopping epoxy-modified sealant is used to seal the leak point. During the grouting process, an acrylate grouting solution is used to perform two grouting treatments at the sealing joint. When sealing the grouting port, a leak-stopping material is used to repair and seal the grouting port; When constructing the waterproof layer, an impermeable epoxy-modified sealing adhesive and a fiber-reinforced impermeable membrane are used sequentially from the inside out; The leak-stopping epoxy modified sealant comprises the following components in parts by weight: 75-80 parts of quick-setting sulfoaluminate cement, 20-27 parts of silica fume, 5-10 parts of phenolic epoxy resin powder, 0.3-0.5 parts of water-reducing agent, 1-3 parts of quick-setting agent, and 1-2 parts of waterproofing powder. The impermeable epoxy modified sealant comprises the following components in parts by weight: 60-75 parts of early-strength and rapid-hardening sulfoaluminate cement, 25-32 parts of silica fume, 5-10 parts of phenolic epoxy resin powder, 0.3-0.5 parts of water-reducing agent, 1-3 parts of early-strength agent, 0.5-1 part of cellulose, and 3-5 parts of waterproofing powder. The fiber-reinforced impermeable membrane comprises, from the inside out, a polyester fiber layer and a high-density polyethylene layer; The raw materials for the polyester fiber layer include 100 parts of polyester granules and 2-4 parts of softener; The softener comprises epoxy-modified polysiloxane and amino-modified polysiloxane in a mass ratio of 8:2 to 6:

4.

2. The three-in-one leak sealing method according to claim 1, characterized in that, The diameter of the drill bit used for drilling is 20-25 mm.

3. The three-in-one leak sealing method according to claim 1, characterized in that, The grouting pressure during grouting is 0.5~1.0MPa.

4. The three-in-one leak sealing method according to claim 1, characterized in that, The raw materials of the high-density polyethylene layer include the following components in parts by weight: 100 parts high-density polyethylene, 5-10 parts silica, 0.5-1 parts antioxidant, and 1-1.5 parts nucleating agent.

5. The three-in-one leak sealing method according to claim 1, characterized in that, The method for preparing the fiber-reinforced impermeable membrane includes the following steps: S1. Mix the components of the high-density polyethylene layer to obtain a preliminary mixture; S2. Polyester granules are melt-spun, hot-rolled, and soaked in a softener to obtain a polyester fiber layer; S3. The initial mixture is extruded onto the upper surface of the polyester fiber layer and calendered to obtain a fiber-reinforced impermeable membrane.

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