KR101269399B1 - A waterproof structure method - Google Patents

Abstract

The present invention relates to a waterproof structure using a laser and a waterproofing method, and more particularly, after spraying the waterproof chip on the base surface to melt the sprayed waterproof chip with a melter to form a waterproof layer on the base surface shortening the construction time and The present invention relates to a waterproof structure using a laser that enhances product competitiveness with improved waterproof workability, which enables convenient construction, and a waterproof method thereof.
To this end, the present invention in the waterproof structure to form a waterproof layer on the base surface (construction surface, or slab), by spraying a plurality of waterproof chip 110 on the base surface (3) by the waterproof chip 110 Warm cotton 3; The sprayed waterproof chip 110 is melted by the melter 120 to form a waterproof layer 130 having a predetermined thickness on the base surface 3;

Description

Waterproof construction method

The present invention relates to a waterproof construction method, and more particularly, after the waterproof chip is sprayed on the base surface, the waterproof layer is formed on the base surface by solidifying after melting the sprayed waterproof chip with a laser or a melter. The present invention relates to a waterproof construction method that enhances product competitiveness by improving construction performance and reducing construction time and enabling convenient construction.

In general, concrete structures such as rooftop slabs, roofs, basements of buildings, or various fluid storage tanks have weak waterproofing properties, so rainwater or groundwater can seep into the water, which not only reduces the binding force of the concrete itself, but also Due to the volume change, cracks occur in the concrete, shortening the life of the building.

In addition, when rainwater or groundwater flows through or leaks through concrete cracks, the function of the building is lost. Therefore, waterproofing to prevent rainwater or groundwater from seeping through is very important.

The waterproof method of such concrete structure is largely permeable waterproof method and film type waterproof method, and the penetrant waterproof method is a method of applying the waterproofing material to the concrete surface to change the concrete itself to have waterproofness. It is a method to cope with cracks in concrete structures or construction defects of other buildings by forming multiple layers of impermeable waterproof layers inside and outside structures.

And the film type waterproofing furnace is divided into asphalt waterproofing, sheet waterproofing, waterproofing coating, etc. according to the type and construction method of impervious coating material.

For example, asphalt waterproofing is mainly used for roofs, basements, water tanks, and indoor waterproofing. After the structure is dried, the asphalt primer is applied by brushing or spraying the asphalt and melting the asphalt to form a waterproof layer having a predetermined thickness. .

However, during the waterproof construction, the container containing the raw material of the asphalt is kept heated so that the asphalt does not solidify, and the worker carries a certain amount of the high temperature liquid asphalt to perform waterproofing, in which case the liquid asphalt is generated. There is a problem such as workability, risks and environmental pollution that can cause injury or burns due to odor and volatile organic compounds (VOCs).

And the sheet waterproofing is a waterproof method of attaching a waterproof sheet of a predetermined thickness made of synthetic rubber, synthetic resin, and the like with an adhesive.

The sheet waterproof is suitable for construction in a large area, and has good elasticity, the responsiveness to the crack of concrete is superior to asphalt or coating waterproofing, and has the advantage of simple operation.

However, the conventional sheet waterproofing method has a problem in that a process of joining joints between neighboring waterproof sheets is complicated, as well as defects such as cracks in joints.

That is, in the conventional sheet waterproofing method, in a method of joining joints (or seams) between neighboring waterproof sheets, the ends of neighboring waterproof sheets are overlapped (or referred to as 'overlap') by a predetermined length with an adhesive or adhesive tape. Overlap joint method of bonding or melting with heat and heat fusion, and joining by bonding the end faces of neighboring waterproof sheets and filling liquid adhesive therebetween or reinforcing a separate waterproof tape or joint on the upper surface of neighboring waterproof sheets There was a butt joint method.

However, the butt joint method has a small joint area and frequently causes defects in which the joints are separated.

1 and 2 are a perspective view and a cross-sectional view showing a waterproof structure constructed according to the conventional sheet waterproofing method, referring to this, in the conventional sheet waterproofing method, the ends of the neighboring waterproof sheet (2a) (2b) to a predetermined width After overlapping installation, an overlapping joining method is used in which the joints A overlapped with each other are heat-sealed and joined.

That is, in the conventional sheet waterproofing method, first, a predetermined adhesive is applied to the entire surface or part of the concrete structure 3 to form a first adhesive layer 4, and the bottom surface of the waterproof sheet is adhered to the first adhesive layer 4. One side of the waterproof sheet (2a) to be installed, and the other side of the waterproof sheet (2b) so as to overlap a predetermined width with the waterproof sheet (2a).

Thereafter, the overlapped portions A of the first and second waterproof sheets 2a and 2b are melted with heat, and then pressed by a roller to be bonded to each other.

Then, a predetermined coating film waterproofing material is applied to a top surface of the waterproof sheet 2 bonded to each other by a predetermined thickness to form a coating film waterproofing layer 5.

The waterproof structure 1 constructed according to the conventional method is formed of a double impermeable coating by the waterproof sheet 2 and the coating film waterproof layer 5 to maintain the waterproof performance.

However, as shown in the cross-sectional views of FIGS. 3A and 3B, between the base surface of the concrete structure 3 and the waterproof sheet 2, even if bonded with the adhesive of the primer, the environment such as typhoon, heavy rain, earthquake Peeling or peeling off at the localized area due to various factors such as physical factors, such as vibration occurring in the interior of a building or inside a building, or heat generated by heat fusion for overlapping of the first and second waterproof sheets 2a, 2b. Along with this, gas such as water vapor is generated, and the waterproof sheet 2b is lifted up (air pocket) by the pressure of the gas, and there is a structural problem in which the crack (C) is likely to occur due to the lift up.

In addition, waterproofing the coating film is a construction method to obtain a waterproof effect by forming a coating film by applying a coating material, but has the advantage of low construction cost, but the tensile force due to the behavior of the building due to environmental or physical factors as described above acting on the building There was a problem in that it was easily vulnerable to breakage, and there was also a problem in that the coating layer was lifted due to peeling and peeling between the base surface and the coating layer due to the behavior as described above.

In addition, in the case of waterproofing the coating film, a plurality of chemicals are mixed in a predetermined ratio to form a coating material, and then applied. In this case, when the coating material is cured after a certain time by the added curing agent, the chemicals and chemicals cannot be used. There have been problems that the worker may be injured by the care and mistake of handling due to use, and it is difficult to process the remaining coating material after the work.

In addition, the problem of being affected by the surrounding environment that the construction is possible when the dry surface of the slab, that is, the drying rate of the slab is 90% or more, and the problem that the worker and the surrounding environment may be contaminated by components harmful to the human body, for example, panol. There was this.

As an example proposed to solve the above problems, referring to Figure 4, Korean Patent No. 733502 (name: expansion joint pad for waterproof sheet and a sheet waterproofing method using the same) is the upper surface of the concrete structure (hereinafter, 'base surface Forming a first adhesive layer having a predetermined width by applying an adhesive at predetermined intervals; Installing the elastic joint pad by installing the elastic joint pad in a longitudinal direction such that the first bonding portion of the elastic joint pad is adhered on the first adhesive layer; A second adhesive layer forming step of forming a second adhesive layer by applying a predetermined adhesive to upper surfaces of the first and second joint portions of the stretchable joint pads, respectively; A waterproof sheet installation step of adhering first and second waterproof sheets adjacent to upper surfaces of the first and second joint portions of the elastic joint pad in a longitudinal direction; A third adhesive layer forming step of forming a third adhesive layer having a predetermined width by applying a predetermined adhesive to upper surfaces of end portions of the first and second waterproof sheets attached to the joint part of the expansion pad; A glass mesh tape installation step of attaching and installing a glass mesh tape having a predetermined width to the third adhesive layer; And forming a coating film waterproofing layer by applying a coating film waterproofing material having a predetermined thickness to the entire upper surface of the waterproof sheet to which the glass mesh tape is adhered. The expansion and contraction portion of the expansion joint pad, the height is lower than the thickness of the waterproof sheet bonded to both sides, the surface is separated from the lower surface of the glass mesh tape is formed on the coating layer is formed so that no adhesive is attached to the surface Maintain; In the first bonding portion of the expansion pad, a plurality of through-holes in which the adhesive of the second adhesive layer flows into and integrally bonded with the first bonding layer are formed and fixed to the upper surface of the concrete structure, and the second bonding portion of the expansion pad is formed. The through hole is not formed therein to maintain the state separated from the upper surface of the concrete structure; The waterproof sheets adhered to the first and second joint portions are separated without being bonded to the upper surface of the concrete structure and are horizontally movable together with the first and second joint portions of the expansion pad.

In other words, it is a composite method in which a plurality of waterproof sheets are stacked on a slab, which is a waterproof construction surface, and then a waterproof coating is applied thereon.

However, as in the conventional description, the joint part of the waterproof sheet, that is, the overlap (overlap part) or a separate structure, such as the butt part, when the behavior of the building environmentally or physically between the joint or the base surface and the waterproof layer In the structurally weak parts such as peeling or breakage occurs, there was a structural problem that leaks through this peeling or breakage, and research and development to solve this structural problem is continuously made in the waterproof industry There is a situation.

The present invention proposes to solve the above problems, an object of the present invention is to crush the waterproof sheet excellent in elasticity, weather resistance, water resistance, and heat resistance into a chip of a certain size, and sprayed on the base surface and laser or By melting the waterproof chip with a melter to form a waterproof layer of a certain thickness on the base surface without the joint portion (overlapping or joint portion), the new concept waterproof layer and waterproof method to improve the waterproof construction properties by shortening the construction time and time-space composition It is to provide a waterproof structure and a waterproof method using a laser provided.

Another object of the present invention is to prevent the leakage of water due to peeling or breakage caused by the overlap (joint part) in the case of the conventional waterproof sheet, and in the case of the conventional waterproofing of the coating film to the generation of harmful substances and inaccurate mixing ratio It is to provide a waterproof structure and a waterproof method using a laser to enhance the waterproof competitiveness by preventing the occurrence of the defective rate, increasing the service life of the waterproof layer and reducing the maintenance cost.

In the waterproof structure using the laser of the present invention for achieving the above object in the waterproof structure to form a waterproof layer on the base surface (construction surface, or slab), the waterproof chip by spraying a plurality of waterproof chips on the base surface Warming the surface; Melting the sprayed waterproof chip with a melter to form a solidified waterproofing layer of a predetermined thickness on the base surface;

In the present invention, the waterproof chip is a crushed waterproof sheet to a certain size; is preferred.

The present invention provides a waterproofing method for forming a waterproofing layer on a base surface (construction surface, or slab), comprising: spraying a base surface with the waterproof chip by spraying a plurality of waterproof chips on the base surface; And a melting step of melting the waterproof chip sprayed on the base surface through the spraying step with a melter to form a solidified waterproof layer having a predetermined thickness on the base surface.

In the present invention, the gas exhaust step of forming a plurality of holes to discharge the gas or water vapor generated by the temperature difference between the base surface and the waterproof layer melted to the melter to the outside; preferably further includes.

In the present invention, it is preferable to further include a; flattening step so that the upper end of the waterproof layer melted with a melter.

As described above, the waterproof sheet having excellent elasticity, weather resistance, water resistance, and heat resistance is pulverized into chips of a certain size, sprayed on a base surface, and the waterproof chips are melted with a laser or a melter to join the joints (overlapping or joint portions). As a waterproof layer of a predetermined thickness is formed on the base surface without this, there is an effect of providing a new concept waterproof layer and waterproof method to improve the waterproof construction properties by shortening the construction time and space-time configuration.

In addition, in the case of the conventional waterproof sheet, the leakage due to peeling or breakage caused by the overlapping part (joint part) may be fundamentally sealed, and in the case of the conventional waterproofing of the coating film, the generation of a defective rate due to the generation of harmful substances and inaccurate mixing ratio By preventing it, there is an effect of strengthening the waterproofing efficiency of reducing the waterproof efficiency and maintenance cost of increasing the service life of the waterproofing layer.

1 is a cross-sectional perspective view of a waterproof structure showing one conventional example.
2 is a sectional view of Fig. 1;
3A and 3B are sectional views showing a state in which a conventional lifting phenomenon has occurred.
Figure 4 is a cross-sectional perspective view showing another conventional example.
5 is a process chart of the waterproof method according to the present invention.

Hereinafter, with reference to the accompanying drawings, the present invention will be described.

In the waterproof structure of the present invention, a plurality of waterproof chips 110 are sprayed on the base surface 3, and the waterproof chip 110 is melted by a melter 120 that dissipates heat from above. As the waterproof chip 110 is hardened to form a waterproof layer 130b.

5 is a process chart of the waterproofing method according to the present invention, referring to the waterproof construction method of forming a waterproofing layer to have a structure as described above with reference to the following.

Spraying step (S10) is a step of spraying a plurality of waterproof chips on the base surface.

It sprays a predetermined thickness on the base surface 3 of the waterproof chip 110 obtained by crushing the waterproof sheet used in the sheet waterproofing method having excellent elasticity, weather resistance, water resistance and heat resistance to a certain size.

Of course, the spraying of the waterproof chip 110 is a manual spraying method that the operator sprays using a tool such as a shovel, an automatic spraying method that sprays using a sprayer equipped with a large-capacity storage tank such as a hopper, or a mixture thereof Etc. can be used in various ways.

In addition, the waterproof chip 110 can be used to crush the waste polyurethane discarded after manufacturing the shoe sole in addition to crushing the waterproof sheet to a certain size, which is to prevent environmental pollution and waste materials by recycling resources By utilizing the manufacturing cost can be lowered, and the effect of increasing the supply rate of materials can be obtained at the same time.

Melting step (S20) is a step of melting the waterproof chip sprayed on the base surface with a melter to form a waterproof layer of a predetermined thickness on the base surface.

This melts the waterproof chip 110 sprayed on the base surface 3 by heat radiating from the melter 120 so that the melted waterproof layer 130a is formed on the base surface 3.

In addition, the melter 120 is preferably a laser, because it is easy to set the intensity and penetration depth of the wavelength of the laser.

Of course, there is no need to limit to being a laser, and different melters may be used depending on the type and waterproof construction conditions of the waterproof chip 110, and a hot wire or hot air may be used.

Meanwhile, the waterproof layer 130a melted on the base surface 3 by the melter 120 is cured after a predetermined time to form a solidified waterproof layer 130b.

Therefore, since the waterproof layer can be easily formed by spraying the waterproof chip with the melter, not only the process of waterproofing can be shortened drastically, but also with ease of transportation and construction, the joint part is not formed structurally, so the peeling or It prevents structural weakness due to minimizing leakage caused by damage and improves working environment because no harmful substances are used.

The gas exhausting step (S30) is a step for discharging the gas generated by the temperature difference between the base surface and the waterproof layer melted by the melter to the outside.

When the melted chip 120 melts the waterproof chip 110, the molten waterproof layer 130a maintains a temperature higher than that of the base surface 3. Deterioration such as air pockets may occur as gas or water vapor is generated due to a temperature difference between the base surface 3, so that the base surface 3 and the molten waterproof layer 130a are prevented to prevent this. In the gas exhaust device 140 to form a plurality of holes so that the gas or water vapor generated in the easily discharged to the outside.

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In addition, when the waterproof chip 110 is melted through the melting step (S20), a hole is formed in the waterproof layer 130a melted by the gas exhaust device 140, so that the gas or water vapor before the waterproof layer 130a is cured. It is discharged to form a flat waterproof layer 130a.

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In addition, forming a plurality of holes in the gas exhaust device 140 is not only the discharge of gas or water vapor, but also when the surface of the base surface 3 is irregular, the base surface by the surface tension of the molten waterproof layer (130a) ( Since the lifting phenomenon may occur without being in close contact with the curved portion of 3), the surface tension of the molten waterproof layer 130a is destroyed to facilitate the close contact with the curved portion of the base surface 3. .

The flattening step (S40) is a step of leveling the top of the waterproof layer melted with the melter.

This is because the surface of the waterproof layer 130b may be uneven when the molten waterproof layer 130a naturally solidifies due to a lapse of a predetermined time, so that the surface of the waterproof layer 130a becomes flat.

In this case, the surface of the waterproof layer 130a is flattened by pushing the upper side of the molten waterproof layer 130a into the straw 150 before being hardened by using the straw 150.

On the other hand, the spraying of the waterproof chip 110, the gas discharge device 140 to form a hole of the melter 120, the melted melter 120, the melter 120 to melt the sprayed waterproof chip 110, And the push rod 150 to evenly the upper end of the molten waterproof layer (130a) is more preferably used in one device.
What has been described above is just one embodiment for carrying out the waterproofing method, and the present invention is not limited to the above embodiment. It will be appreciated by those skilled in the art that various changes may be made without departing from the spirit of the invention.

3: base surface 110: waterproof chip
120: melter 130a: molten waterproof layer
130b: solidified waterproof layer 140: gas exhaust
150: pushpin

Claims (6)

delete delete In the waterproof construction method of forming a waterproof layer on the base surface,
A spraying step (S10) of covering the base surface 3 with the waterproof chip 110 by spraying a plurality of waterproof chips 110 on the base surface 3;
Melting the waterproof chip 110 sprayed on the base surface 3 with the melter 120 through the spraying step (S10) to form a molten waterproof layer 130a of a predetermined thickness on the base surface (3) Melting step (S20);
Forming a plurality of holes in the molten waterproof layer (130a) so that the gas or water vapor generated due to the temperature difference between the melted waterproof layer (130a) and the base surface 3 through the melting step (S20) can be discharged to the outside Gas exhaust step (S30); And
After the gas exhaust step (S30) and before the molten waterproof layer (130a) is cured, the flattening step (S40) to perform a flattening operation so that the top is flattened with a push rod 150;
Waterproof construction method comprising a. delete delete delete

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