KR101690138B1 - Complex waterproof method for reinforcing concrete structure using multi synthetic rubber - Google Patents

Abstract

The present invention provides a complex waterproofing method for reinforcing durability of a concrete structure using multi-synthetic rubber, so as to reinforce durability of a deteriorated concrete structure and enable an air pocket phenomenon of a waterproof seat not to be generated after time elapses at the same time. To this end, according to the present invention, the complex waterproofing method for reinforcing durability of a concrete structure using multi-synthetic rubber comprises the following steps of: performing surface treatment with respect to a surface of a concrete structure; applying an excessive amount of a sphere protecting agent on a surface of the concrete structure in which surface treatment is performed; forming a first and a second degasification groove which crosses over each other on a surface of the concrete structure in which the sphere protecting agent is applied; attaching a first adhesive tape along the first and the second degasification groove to cover the first and the second degasification groove; applying permeable primer on a surface of the concrete structure in which the first and the second degasification groove are formed, and attaching a plurality of waterproof seats; attaching a second adhesive tape to cover a spaced portion between the waterproof seats for a surface of the concrete structure not to be exposed; forming a degasification hole in the waterproof seats for a crossing point in which the first degasification groove and the second degasification groove cross over each other to be exposed; fixedly installing a degasification device in the degasification hole; and applying MMA primer on a surface of the waterproof seats except for a portion in which the degasification device is fixedly installed, and forming a finishing waterproof layer.

Description

TECHNICAL FIELD [0001] The present invention relates to a composite waterproof method for reinforcing concrete structures using multi-

The present invention relates to a durability-reinforced composite waterproofing method for a concrete structure using a multi-synthetic rubber, and more particularly, to a method for reinforcing a durability of a deteriorated concrete structure and to prevent air pocket phenomenon of a waterproof sheet To a durable composite waterproofing method for a concrete structure using a multi-synthetic rubber.

Outdoor roofs and car parks of civil engineering structures and buildings are always exposed to the outside, so waterproofing methods must be implemented to prevent water from penetrating into structures due to contaminated snow / rain containing ultraviolet rays, acidic substances and heavy metals.

Generally, a waterproofing method is a waterproofing method in which a synthetic polymeric sheet such as a rubber asphalt resin or a vinyl chloride resin resin is fused to a concrete structure by heat and a waterproof sheet method such as a polyurethane rubber or a quick-setting elastomer waterproofing flooring . By this waterproofing method, a waterproof layer is formed on the surface of the concrete structure.

In a conventional waterproofing method, a waterproofing agent applied to a plaster finish layer after the flooring of a concrete is subjected to a surface waterproofing method in which water remaining in the plaster layer and the structure after a certain period of time after the waterproofing layer is exposed to ultraviolet When heated, the water in the pores expands, vaporized and vaporized, and the physical properties of the structure and the waterproof layer are different from each other. As a result, the adhesion strength due to the expansion coefficient is lowered and air porket phenomenon occurs, there was.

On the other hand, in the waterproof sheet construction method in which a waterproof sheet is attached to a concrete slab, the waterproof layer is partially damaged due to the time, and the water penetrates into the damaged portion and penetrates into the existing concrete. The air pocket phenomenon that the waterproof layer floats on the concrete surface occurs due to evaporation, and the waterproof ability of the excited waterproof layer is easily damaged even when the impact is weak.

In the conventional waterproof sheet method, urethane, urea, epoxy resin, or the like is mainly used as a waterproof material constituting a waterproof finish layer or top coat layer to be finally applied to a waterproof layer. According to the waterproof sheet construction method using such a waterproof material, Urethane, urea, and epoxy resins are mixed and applied with the base and hardener. Therefore, total volatile organic compounds in the public facilities indoor air quality control law, noncombustible and harmful gases according to formaldehyde related notices are generated through the solvent, The initial adhesion strength may be high due to the unstable condition and the risk of fire due to the curing of the unreacted state due to the unreacted state. In addition, it can not pass water vapor generated in the concrete structure matrix, , And that peeling occurs It has a mild problem.

The present inventors have conducted studies on a material that can be used for a waterproof layer of a concrete structure, and when they are used as a waterproof material by melting and liquefying a breathable and environmentally friendly methyl methacrylate copolymer reactive resin, It is found that the material can be applied to reinforcement of durability of concrete structure and waterproofing method as the best material with adhesion to concrete structure due to no peeling, peeling and cracking by venting water vapor generated from concrete through ventilation. Thereby completing the invention.

Korean Patent Laid-Open No. 10-2009-0022359 'Degassing structure for concrete slab and waterproofing method using the same' (disclosed on Mar. 4, 2009)

It is an object of the present invention to provide a waterproofing method and a waterproofing structure that can prevent a waterproof layer from being damaged by improving an air pocket phenomenon due to water vapor or gas evaporated by a temperature rise, .

It is another object of the present invention to provide a concrete structure for a concrete structure in which an alkaline recovery agent is excessively applied as a pretreatment for a deteriorated concrete structure to penetrate deeply into a structure to improve durability such as strength, water resistance and abrasion resistance, And to provide the same waterproofing method as that of the waterproofing construction work.

It is also an object of the present invention to provide a waterproof layer or a topcoat layer which is exposed to a final bottom surface by replacing materials such as urethane which contain harmful substances such as phthalates used in conventional processes, The use of reactive resin (MMA) is intended to provide a waterproof concrete structure that is harmless to the human body.

According to an aspect of the present invention, there is provided a composite waterproofing method for a concrete structure using a multi-synthetic rubber, the method comprising: performing a surface treatment on a surface of a concrete structure; Applying an overblocking agent to the surface of the faced concrete structure; Forming first and second degassing grooves that cross each other on the surface of the concrete structure coated with the concrete protective agent; Attaching a first adhesive tape along the first and second degassing grooves to cover the first and second degassing grooves; Applying a permeable primer to the surface of the concrete structure in which the first and second degassing grooves are formed, and attaching a plurality of waterproof sheets; Attaching a second adhesive tape so as to cover the spaced portion between the plurality of waterproof sheets so that the surface of the concrete structure is not exposed; Forming a degassing hole in the waterproof sheet so that an intersection point where the first degassing groove and the second degassing groove intersect is exposed; Fixing the degassing device on the degassing hole; And applying an MMA primer to the surface of the waterproof sheet excluding the portion where the deaerator is fixedly installed, and forming a finish waterproof layer.

At this time, in the step of performing surface treatment on the surface of the concrete structure, the surface of the concrete structure can be cleaned by sandblasting or high pressure over 500 bags.

At this time, as the specific protective agent, an inorganic permeable alkaline recovery agent composed of lithium silicate solution may be used.

At this time, the permeable primer may be a permeable primer formed of a methyl methacrylate (MMA) resin.

At this time, the finished waterproof layer may be made of ethylene-propylene rubber (EPDM).

The waterproof sheet may include: a first nonwoven fabric layer having a mesh shape; A multi-layered synthetic rubber layer composed of isobutylene-isoprene rubber, ethylene-propylene rubber (EPDM) and methyl methacrylate copolymerizable reactive resin (MMA); A second nonwoven fabric layer; And a glass fiber layer coated with an aluminum layer.

At this time, the first nonwoven fabric layer or the second nonwoven fabric layer may be made of polyethylene terephthalate (PET) nonwoven fabric.

At this time, the glass fiber layer may include at least one selected from E-glass, C-glass and S-glass.

At this time, the first and second degassing grooves may have a U-shaped or V-shaped cross-section.

At this time, the durability reinforced composite waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention is characterized in that, after the step of attaching the second adhesive tape, the surface of the second adhesive tape is covered with a lattice Type adhesive non-woven fabric.

According to the present invention, water trapped in the existing concrete structure layer or water molecules permeating into the protective mortar layer are vaporized, or water accumulated on the wet surface of the bottom is discharged through the degassing groove and the degassing device, So that the waterproof layer (finish waterproof layer and waterproof sheet) is not easily damaged and is not easily broken.

Further, according to the present invention, even if a crack occurs on the surface of the concrete structure, the crack can be guided to the degassing groove to prevent deterioration of the waterproof ability by cracks, and the surface of the waterproof layer can be flattened and used conveniently by the user.

Also, according to the present invention, as a pretreatment for a deteriorated concrete structure, an alkaline recovery agent is applied to penetrate deeply into a structure to improve durability such as strength, water resistance and abrasion resistance, and then waterproofing treatment is carried out. The same effect as that of the progress can be obtained.

According to the present invention, a material such as urethane which contains harmful substances such as phthalate used in conventional construction is substituted for the finish waterproof layer or the top coat layer exposed to the final bottom surface, and a methylmethacrylacrylate copolymerizable reactive resin (MMA), it is possible to provide a concrete waterproof structure harmless to the human body.

1 is a flow chart for explaining a durability reinforced composite waterproofing method of a concrete structure using a multi-synthetic rubber according to the present invention.
2 is a view showing the overall waterproof structure of a concrete structure using a multi-synthetic rubber according to the present invention in accordance with a durability-reinforced composite waterproofing method.
FIGS. 3 and 4 are views for explaining the process of durability enhancement combined waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention.
5 is a view for explaining a waterproof sheet used in a durability-reinforced composite waterproofing method of a concrete structure using a multi-synthetic rubber according to the present invention.
6 is a view for explaining a degassing apparatus used in a durable composite waterproofing method of a concrete structure using a multi-synthetic rubber according to the present invention.
7 is a cross-sectional view of a waterproof structure according to the durable composite waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Hereinafter, the durability reinforced composite waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention and the structure of a waterproof sheet used therefor will be described with reference to the accompanying drawings.

FIG. 1 is a flow chart for explaining a durability-reinforced composite waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention, and FIG. 2 is a flowchart showing the durability-reinforced composite waterproofing method of a concrete structure using the multi- Fig. FIGS. 3 and 4 are views for explaining the process of durability enhancement combined waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention. FIG. 5 is a view for explaining a waterproof sheet used in a durable composite waterproofing method of a concrete structure using a multi-synthetic rubber according to the present invention, and FIG. 6 is a view for explaining a deaerator. 7 is a cross-sectional view of a waterproof structure according to the durable composite waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention.

The waterproof sheet 40 as shown in Fig. 5 is used in the durability-enhancing composite waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention. The waterproof sheet 40 is formed by sequentially laminating a first nonwoven fabric layer 41, a multi-synthetic rubber layer 43, a second nonwoven fabric layer 45, a glass fiber layer 47 and an aluminum layer 49 Structure.

The nonwoven fabric constituting the first nonwoven fabric layer 41 and the second nonwoven fabric layer 45 may be selected from the group consisting of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), polylactic Fibers selected from the group consisting of polylactic acid (PLA), polyolefine, copolymers thereof, and combinations thereof. In the present invention, a nonwoven fabric made of polyethylene terephthalate (PET) is preferably used. On the other hand, the first nonwoven fabric layer 41 laminated on the lower side of the multi-layered synthetic rubber layer 43 is formed so that the multi-synthetic rubber layer 43 of the waterproof sheet 40 is in contact with the surface of the concrete structure coated with the permeable primer It is preferable to have a mesh shape. In particular, the first nonwoven fabric layer 41 may have a honeycomb-like mesh structure as shown in FIG. The first nonwoven fabric layer 41 is made of a nonwoven fabric made of fibers having high hydrophilicity so that moisture on the surface of the concrete structure 10 is absorbed by the first nonwoven fabric layer 41 in accordance with an external temperature change 2 degassing grooves 21 and 23, respectively.

The multi-layered synthetic rubber layer 43 is a layer having a water-proof function as a main water-proofing layer in the waterproof sheet 40 according to the present invention, and is composed of isobutylene-isoprene rubber, ethylene-propylene rubber (EPDM) And a methyl methacrylate copolymer reactive resin (methyl methacrylate (MMA)). The methyl methacrylic copolymerization reactive resin (MMA), which is a component of the multi-layered synthetic rubber layer 43, is a compound based on ester, acrylic or methacrylic acid and is composed of a carbon double bond aggregate. The resin has air permeability, It is used for preventing, flame retardant, non-flammable, and chemical-resistant.

The glass fiber layer 47 is a layer for protecting the multi-synthetic rubber layer 43, which functions as a waterproof function, from external impact, and may be made of ordinary glass fiber. Preferably, the glass fiber layer 47 is made of E-glass, And S-glass, and more preferably, E-glass fiberglass is preferably used. The glass fiber layer 47 may contain 50 to 60 wt% of SiO ₂ , 10 to 20 wt% of Al ₂ O ₃ , 8 to 10 wt% of B ₂ O ₃ , 1 to 2 wt% of MgO, 20 to 24 wt% of MaO 2, , Na ₂ O 0.1 ~ 1 wt%, K ₂ O 0.1 ~ 1 wt%, TiO ₂ 0.01 ~ 0.5 glass fiber containing by weight% and Fe ₂ O ₃ 0.01 ~ 0.5% by weight, preferably SiO ₂ 52 ~ 58 _{wt%, Al 2 O 3 10 ~} 18 _{wt%, B 2 O 3 8 ~} 9 wt%, MgO 1 ~ 2 weight%, MaO 20 ~ 23 wt%, Na ₂ O 0.5 ~ 1 wt%, K ₂ O 0.5 to 1% by weight of TiO _2, 0.01 to 0.1% by weight of TiO _{2 and} 0.01 to 0.1% by weight of Fe ₂ O ₃ . The glass fiber used in the glass fiber layer 47 is not particularly limited as to its type of weaving, but may be plain, twill, satin, leno plain, or mock leno or imitation leno).

The aluminum layer 49 is coated on the glass fiber layer 47 and laminated on the final upper part of the waterproof sheet 40 according to the present invention and functions as a waterproof function together with the multi-synthetic rubber layer 43. As the aluminum layer 49 is made of gray that is close to white, it may block the external ultraviolet ray and emit the internal heat.

Meanwhile, in the durability enhancement composite waterproofing method of a concrete structure using the multi-synthetic rubber according to the present invention, a deaerator 80 as shown in FIG. 6 is used. The deaerator 80 includes a fixing flange 81 having a flange hole 81a formed at the center thereof and supporting the bottom thereof and a flange hole 81a extending upward from the fixing flange 81 and communicating with the flange hole 81a A deaerator 80 including a body 83 having a body hole 83a is used. At this time, a shoulder 85 for preventing rain or snow from flowing into the body hole 83a may be provided on the upper part of the body 83, or the body 83 may be formed in a shape of "J"

In order to carry out the durability enhancement composite waterproofing method of the concrete structure using the multi-synthetic rubber using the waterproof sheet 40 and the deaerator 80, the surface of the concrete structure 10, Preprocessing) (S10). In the present invention, the concrete structure 10 to be reinforced and waterproofed is a slab concrete which is deteriorated and deteriorated. The slab concrete has a structure in which a protective mortar layer is formed on a floor concrete forming a roof frame, or is realized as concrete. In step S10, the surface of the deteriorated concrete structure 10 is cleaned by sandblasting or high-pressure washing over 500 bags. At this time, after removing the condensation, leaks, and debris on the surface of the structure, the surface of the structure is inspected, and the portions where cracks or cracks are generated are reinforced, and then gratings, It is desirable to perform a cleaning operation to cleanly remove grease, moisture, and other foreign matter.

Subsequently, the concrete protective agent is over-applied to the surface of the concrete structure 10 subjected to the surface treatment in operation S10 (S20). The concrete protective agent applied on the surface of the concrete structure 10 in step S20 is an inorganic permeable alkali recovery agent made of a lithium silicate solution. The lithium silicate penetrates into the surface of the concrete structure 10, It reacts with the components to strengthen the deteriorated concrete. More specifically, lithium silicate, which is a component of the concrete protective agent, exerts an excellent capillary infiltration performance and penetrates deeply into the structure along fine pores when it is applied to the surface of the concrete structure 10 and reacts with moisture by the natural catalyst existing therein The ion penetrates the pores of the concrete tightly to improve the durability of the existing structure such as strength, water resistance and abrasion resistance, and thus it is possible to fundamentally prevent whitening phenomenon and deterioration.

In step S30, a plurality of first and second degassing grooves 21 and 23 are formed on the surface of the concrete structure 10 after the concrete protective material is applied in step S20. The first and second degassing grooves 21 and 23 are interconnected at an intersection 25. Although the first and second degassing grooves 21 and 23 are formed in the transverse direction and the longitudinal direction, the first and second degassing grooves 21 and 23 may be formed in a diagonal direction, Of course. The first and second degassing grooves 21 and 23 are formed to have a V-shaped or U-shaped cross-section and have a width of 5 mm and a depth of 5 mm or more using a grinder. The first and second degassing grooves 21 and 23 serve as channels through which moisture or gas contained in the concrete structure 10 is transferred. The first and second degassing grooves 21 and 23 serve as joints for guiding the cracks of the concrete structure 10. When the concrete structure 10 deteriorates with time, a crack is generated. In this case, by forming the first and second degassing grooves 21 and 23, cracks are generated in the first and second degassing grooves 21 and 23 And thus cracks are generated, so that even if moisture penetrates into the cracks, it can be exhausted along the first and second degassing grooves 21 and 23.

The first adhesive tape 30 covering the first and second degassing grooves 21 and 22 along the first and second degassing grooves 21 and 23 formed on the surface of the concrete structure 10 in step S30 (Step S40). The first adhesive tape 30 is formed by attaching a butyl rubber, a synthetic rubber or an asphalt rubber to a thermoplastic polyolefin (TPO) or polyethylene terephthalate (PET) film having a high weather resistance, and has a thickness of 0.2 to 0.5 mm Preferably 0.3 mm, and a width of about 30 mm. The first adhesive tape 30 prevents foreign matter from flowing into the first and second degassing grooves 21 and 23 during the operation and prevents moisture that may come up to the place where the U and V grooves are installed in the concrete structure from the beginning For the purpose of

Next, the permeable primer is applied to the surface of the concrete structure 10 in which the first and second degassing grooves 21 and 23 are formed (S50). In this case, the permeable primer applied on the surface of the concrete structure 10 in step S50 is a water-soluble low viscosity liquid-permeable primer formed of methyl methacrylate copolymer reactive resin (MMA). The penetrating primer used in the present invention preferably comprises 90 to 99% by weight of a methyl methacrylate copolymer reactive resin (MMA) and 1 to 10% by weight of benzyl peroxide. The methyl methacrylate copolymerization reactive resin (MMA) primer is designed to exhibit optimal penetration and adhesion, and when white methyl benzoate peroxide (BPO) is used as a powder curing initiator in the application of methyl methacrylate copolymer reactive resin (MMA) Powder is added and mixed and mixed (mixed mixing is necessary for at least 3 minutes since sufficient mixing is necessary since the curing initiator is added). Then, the surface of the concrete structure 10 to be coated is uniformly applied using a brush or a specially- do. In the present invention, the methyl methacrylate copolymer reactive resin (MMA) applied on the surface of the concrete structure 10 is completely cured within a short time (within 1 hour) A waterproof layer is formed on the surface of the concrete structure 10 by forming a coating layer to form a water impermeable coating film having strong adhesion with a waterproof sheet 40 to be described later and an appropriate flexibility so that the shear adhesive strength with the waterproof sheet 10 is excellent It is possible to prevent breakage of the waterproof sheet 10 due to the jarring, cracking and peeling of the surface layer according to the passage of the over-traveled and medium-sized vehicles, thereby maintaining a pleasant traveling and traveling environment for a long period of time. It is possible to protect the surface of the concrete structure 10 for a long period of time with excellent durability against the material. Further, by adding benzyl peroxide as an initiator, it is possible to manufacture a product which can shorten the construction time and simplify the workability as a waterproof material having an excellent quick-setting property and meet the field conditions. In addition, excellent non-slip and non-ionic application is possible, and thus it functions as an environment-friendly waterproof material excellent in water resistance, excellent in tensile strength, chemical resistance and alkali resistance.

In step S60, a plurality of waterproof sheets (waterproof adhesive sheets) 40 are attached to the surface 10 of the concrete structure coated with the permeable primer and the surface of the first adhesive tape 30 (S60) . The waterproof sheet 40 is made of the waterproof sheet 40 according to the present invention described above with reference to FIG. 5 and has sufficient durability to actually perform a waterproof function. The thickness of the waterproof sheet 40 ranges from 1 to 3 mm, More preferably 1.5 mm. When attaching the plurality of waterproof sheets 40 in the step S50, the waterproof sheets 40 may be attached to the waterproof sheets 40 so as not to overlap each other, Can be removed. If the edges of the waterproof sheet 40 and the other waterproof sheet 40 are overlapped with each other, the overlapped portions protrude from the overlapped portions when the finish waterproof layer 70 is formed. These jaws interfere with the flow of water and are accelerated due to the continuous external force applied, which makes it inconvenient for the user to get on the foot when using the runner or the roof, and is easily damaged compared to other parts. It can fall. The spacing between the waterproof sheets 40 is preferably about 5 mm or so.

The second adhesive tape 50 is attached so that the surface of the concrete structure 10 is not exposed to the outside so as to cover the spaced part between the plurality of waterproof sheets 40 requested on the surface of the concrete structure 10 in step S60 (S70). The second adhesive tape 50 is formed by attaching a butyl rubber, a synthetic rubber, or an asphalt rubber to a thermoplastic polyolefin (TPO) or a polyethylene terephthalate (PET) film in the same manner as the first adhesive tape 30 described above. A thickness of about 0.5 mm, more preferably about 0.3 mm, and a width of about 50 mm. The lattice-shaped pressure-bonded nonwoven fabric 60 having a width of about 100 mm can be attached to the surface of the second adhesive tape so as to completely cover the second adhesive tape 50 (S80). The lattice type pressure-sensitive adhesive nonwoven fabric 60 has a structure for improving adhesion between the finish waterproof layer 70 and the second adhesive tape 50 to be described later. The lattice-type pressure-sensitive adhesive nonwoven fabric 60 prevents shrinkage when the temperature of the waterproof sheet 40 changes, In step S110, the finish waterproof layer 70 is attached so as to function as a buffer when forming (coating).

Next, a degassing hole 40 'is formed in the waterproof sheet 40 so that the intersection 25 where the first degassing groove 21 and the second degassing groove 23 intersect is exposed (S90). In this case, the diameter of the degassing hole 40 'is preferably equal to or slightly larger than the diameter of the flange hole 81a of the deaerator 80 described above with reference to FIG. The degassing holes 40 'preferably have an interval of about 30 m.

The inflatable one-pack type sealant is applied to the lower surface of the fixing flange 81 of the deaerator 80 so that the flange hole 81a is aligned with the degassing hole 40 'formed in step S90, And then fixed to the surface of the concrete structure 10 with bolts or the like (S100).

Finally, the MMA primer is applied to the surface of the waterproof sheet except for the portion where the deaerator 80 is fixed, and the step of forming the finish waterproof layer 70 is performed (S110). The MMA primer applied to the surface of the waterproof sheet in step S110 is preferably a water-soluble low viscosity liquid primer composed of 90 to 99% by weight of methyl methacrylate copolymer reactive resin (MMA) and 1 to 10% by weight of benzyl peroxide. The MMA primer is applied to the portion of the waterproof sheet 40 other than the portion where the deaerator 80 is fixed and the portion of the fixing flange 81 of the deaerator 80. [ The finish waterproof layer 70 is attached so that the waterproof sheet 40 and the fixing flange 81 are not exposed to the upper surface of the waterproof sheet 40 coated with the MMA primer. The finish waterproof layer 70 has sufficient durability to perform a waterproof function, and has a thickness in the range of 1 to 2 mm, more preferably, 1.5 mm so as to withstand the load. The finish waterproof layer 70 is generally made of a material such as urethane, urea, or an inorganic coating film. In the present invention, the finish waterproof layer 70 is formed of ethylene-propylene rubber (EPDM).

A top coat layer (not shown) may be formed on the upper surface of the finish waterproof layer 70 to protect the finish waterproof layer 70 from ultraviolet rays, friction, or the like. The topcoat layer is generally formed by applying urethane, an inorganic finish, urea, or the like to a roller or spraying. In the present invention, a color coating agent or a clear coating agent formed of a methyl methacrylate copolymer reactive resin (MMA) can be applied . In this case, the color coating agent to be applied as the top coat layer is preferably 60 to 65% by weight of a methyl methacrylate copolymer reactive resin (MMA), 1 to 10% by weight of a nano-silane ceramic modified resin, 3 to 5% by weight of an inorganic pigment, 5% by weight and the balance of other additives. The nano-silane ceramic modified resin used for the color coating agent is a water-soluble silicone-based ceramic MMA having a ceramic nano composite polymer siloxane (SI-O) structure to which an ester-based alkali-soluble compound is bonded. The nano-silane ceramic modified resin is used for high strength and high hardness concrete flooring, anti-fouling, anti-fouling paint, antifungal, flame retardant nonflammable waterproofing agent and antifreeze. To this is added an inorganic pigment to impart color, and benzyl peroxide (BPO), which is a curing initiator, is added at the time of application. Other additives that can be used in the color coating agent include magnesium silicate (Mg ₃ SO ₄ O ₁₀ (OH) ₂ ), zinc stearate (ST-Zn), tourmaline (natural ore) powder, dispersant (Polyglycols), color separating agents, and the like can be used within the range generally used in this field. On the other hand, the transparent coating agent preferably contains 5 to 15% by weight of a propylene terephthalate resin, 60 to 70% by weight of a nano-silane ceramic modified resin, 1 to 5% by weight of benzyl peroxide, 1 to 5% by weight of a plasticizer, . The propylene terephthalate resin is a thermoplastic resin obtained by condensation reaction of PET (polyethylene terephthalate) tetrafluoro acid HOOC - COOH and ethylene glycol, and is preferably used in a range of 5 to 15 wt% based on the total weight of the transparent coating agent, The nano-silane ceramic modified resin is a silicone-based, water-soluble, ceramic MMA having a ceramic nano composite polymer siloxane (SI-O) structure to which an ester-based alkali-soluble compound is bonded, %, Wherein benzyl peroxide is used as a powder curing initiator, dioctyl phthalate is added as a plasticizer, and alcohols are added as a solvent.

The composite waterproofing method according to the present invention as described above improves durability such as strength, water resistance and abrasion resistance by applying an alkaline restorative (concrete protective agent) as a pretreatment, and thus, as in the case of a conventionally- Waterproofing method can be applied, water or gas penetrated into concrete and protective mortar, and water accumulated on the wetted surface of the concrete structure surface are exhausted through the degassing groove, so that the air pocket phenomenon is prevented. In addition, even if cracks occur on the surface of the concrete structure, the crack can be guided to the degassing groove and effectively cope with the flow of the concrete. The surface of the waterproof layer can be flattened to prevent the waterproof layer from being damaged during use, Do.

In the present invention, the waterproof sheet 40, which is the main waterproof function, is made of isobutylene-isoprene rubber, ethylene-propylene rubber (EPDM), methyl methacrylate , MMA), and a color coating agent or a clear coating agent, which is formed of a methyl methacrylate copolymerizable reactive resin (MMA) as a top coat layer, is applied to a tree root or soil It is possible to provide a composite waterproofing method which has excellent durability against bacteria and the like existing in the inside of a building,

As described above, an optimal embodiment has been disclosed in the drawings and specification. While specific terms have been employed herein, they are used for the purpose of describing the invention only and are not used to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: concrete structure 21, 23:
30: first adhesive tape 40: waterproof sheet
41: first nonwoven fabric layer 43: multi-synthetic rubber layer
45: second nonwoven fabric layer 47: glass fiber layer
49: Aluminum layer 50: Second adhesive tape
60: lattice type nonwoven fabric 70: finished waterproof layer
80: Deaerator

Claims (10)

Performing surface treatment on the surface of the concrete structure;
Applying an overblocking agent to the surface of the faced concrete structure;
Forming first and second degassing grooves that cross each other on the surface of the concrete structure coated with the concrete protective agent;
Attaching a first adhesive tape along the first and second degassing grooves to cover the first and second degassing grooves;
Applying a permeable primer to the surface of the concrete structure in which the first and second degassing grooves are formed, and attaching a plurality of waterproof sheets;
Attaching a second adhesive tape so as to cover the spaced portion between the plurality of waterproof sheets so that the surface of the concrete structure is not exposed;
Forming a degassing hole in the waterproof sheet so that an intersection point where the first degassing groove and the second degassing groove intersect is exposed;
Fixing the degassing device on the degassing hole; And
Applying an MMA primer to the surface of the waterproof sheet excluding the portion where the deaerator is fixedly installed, and forming a finished waterproof layer,
The waterproof sheet may include:
A first nonwoven fabric layer having a hydrophilic mesh shape so that moisture on the surface of the concrete structure is absorbed and transferred to the first and second degassing grooves;
A synthetic rubber layer made of isobutylene-isoprene rubber, ethylene-propylene rubber (EPDM), and methyl methacrylate (MMA) resin;
A second nonwoven fabric layer; And
And a glass fiber layer coated with an aluminum layer are successively laminated on the surface of the concrete structure. The method according to claim 1,
Wherein the step of performing the surface treatment on the surface of the concrete structure comprises washing the surface of the concrete structure by sand blasting or washing at a high pressure of over 500 bags. The method according to claim 1,
Wherein the concrete protective agent is an inorganic impermeable alkali recovery agent composed of a lithium silicate solution, and a durable composite waterproofing method for a concrete structure using a multi-synthetic rubber. The method according to claim 1,
Wherein the permeable primer is a primer formed of methyl methacrylate (MMA) resin. The method of claim 1, wherein the permeable primer is a primer formed of methyl methacrylate (MMA). The method according to claim 1,
Wherein the finished waterproof layer is made of ethylene-propylene rubber (EPDM). The composite waterproofing method of the concrete structure using the multi-synthetic rubber. delete The method according to claim 1,
Wherein the first nonwoven fabric layer or the second nonwoven fabric layer is made of polyethylene terephthalate (PET) nonwoven fabric. The method according to claim 1,
Wherein the glass fiber layer comprises at least one selected from the group consisting of E-glass, C-glass, and S-glass, and a durable composite waterproofing method for a concrete structure using the multi-synthetic rubber. The method according to claim 1,
Wherein the first and second degassing grooves are U-shaped or V-shaped in cross section. The method according to claim 1,
Further comprising the step of attaching a lattice type adhesive nonwoven fabric to the surface of the second adhesive tape so as to cover the second adhesive tape after the step of attaching the second adhesive tape Durability enhancement combined waterproofing method of concrete structure.

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