KR101031261B1 - A water tank, manufacturing method thereof, and using method thereof - Google Patents

Abstract

PURPOSE: A water tank with a SMC panel, a construction method thereof, and a repairing method thereof are provided to facilitate construction and repair works of a water tank since coupling members such as anchor bolts are not used during the attachment of an SMC panel. CONSTITUTION: A water tank with a SMC panel is constituted as follows. A concrete structure including a water containing space is formed inside. The inside of a concrete wall that forms the water containing space is covered with a SMC(sheet molding compound) panel and attached with the SMC panel by adhesive. A fitting projection is formed on the inside of the SMD panel. A fitting groove is formed on the concrete wall body for the insertion of the fitting projection. An adhesive layer is formed between the inside of the SMC panel and the inside of the concrete wall body and between the fitting projection and the fitting groove.

Description

A water tank, manufacturing method and repair method

The present invention relates to a water tank, and a construction method and a repair method thereof, and more particularly, to a water tank, a construction method and a repair method thereof, which are inexpensive and hygienic, so that construction and repair work can be performed more quickly. will be.

In general, a water tank that stores a large amount of water is mostly made of a concrete structure, usually provided as a single facility or installed as a water supply facility in the basement of a building.

The water chill forms an exterior of a concrete wall made of concrete, and the space between each side surface and the bottom surface of the concrete wall forms a water receiving space of a predetermined size.

On the other hand, such a water tank has a structure in which the inner surface of the concrete wall is in direct contact with the water accommodated in the water receiving space. In the case of concrete, water resistance and corrosion resistance are weak, so that the water tank of the water tank is easily eroded and corroded and deteriorated in watertightness. There is a risk of making.

Therefore, in recent years, the water tank provided with most concrete structures is strengthening watertightness by coating epoxy on the inner surface of the water receiving space to improve water resistance and corrosion resistance.

However, this epoxy coating is often peeled off and requires periodic repainting, which leads to excessive maintenance cost of the water tank, and if the epoxy coating is left in a damaged state, moss or sludge inside the water receiving space. As it is attached, a problem occurs that the quality of the water stored in the water receiving space is lowered.

In order to solve the problems of the existing water tank, I have applied for a patent for the water tank prepared by attaching the SMC (SHEET MOLDING COMPOUND) panel to the inner surface of the concrete wall forming the water receiving space, and its construction method and repair method. .

In case of SMC panel, the price is low, but it is excellent in water resistance and corrosion resistance. Therefore, when the SMC panel is attached to the inner surface of the water receiving space, the water tank provides excellent watertightness and can be stored in a more hygienic state. There is less cost to build and repair the water tank.

Such a water tank, its construction method and repair method are disclosed in detail in the registered patent publication of the Patent No. 10-0789171.

However, the water tank disclosed in the above publication also has the following problems.

First, in the case of the water tank, the SMC panel is fixed to the concrete wall using an anchor bolt, and the opposite end of the anchor bolt in the fastening direction protrudes out of the SMC panel forming a water receiving space, and around the end of the protruding anchor bolt. The waterproof cap is coupled to the conventional water tank structure, the fastening hole is processed in the SMC panel for fastening the anchor bolt, and in the state of the SMC panel is fastened around the end of the anchor bolt protruding outside the SMC panel In the process of covering with a long working time has been limited to the construction or repair of the water tank more quickly.

In addition, in the case of the conventional water tank described above, the waterproof cap provided to cover the end of the anchor bolt, including the end of the anchor bolt, protrudes from the surface of the SMC panel toward the water holding space. As this progressed, there was a problem that the reliability of the water tank as a whole deteriorated due to the protruding structure of the anchor bolt, such as the foreign matter is caught in the gap between the waterproof cap and the anchor bolt, or the anchor bolt is corroded.

The present invention is to solve such a problem, an object of the present invention is to provide a water tank and its construction method and repair method provided to perform the construction and repair work more quickly and inexpensive and sanitary.

Still another object of the present invention is to provide a water tank, a construction method, and a repair method, which are provided to improve the product reliability more effectively while being inexpensive and sanitary.

In order to solve this problem, the water tank according to the present invention is provided with a concrete structure having a water receiving space therein, and an inner surface of the concrete wall forming the water receiving space is provided to be covered with a plurality of sheet molding compound (SMC) panels. The SMC (SHEET MOLDING COMPOUND) panel is characterized in that the adhesive is bonded to the inner surface of the concrete wall.

A fitting protrusion is provided on an inner surface of the SMC panel to increase the contact area between the SMC panel and the concrete wall. And an adhesive layer formed through the adhesive between the inner surface of the SMC panel and the inner surface of the concrete wall and between the fitting protrusion and the fitting groove.

The adhesive layer formed between the fitting protrusion and the fitting groove may be thinner than the adhesive layer formed between the inner surface of the SMC panel and the inner surface of the concrete wall.

The fitting protrusion may be integrally provided with the sheet molding compound (SMC) panel when forming the sheet molding compound (SMC) panel.

The fitting protrusion is stepped in a protruding direction, characterized in that coupled to the SMC (SHEET MOLDING COMPOUND) panel.

The fitting protrusion may be made of the same material as the SMC (SHEET MOLDING COMPOUND) panel.

The fitting protrusion is characterized in that provided by the engineering plastics.

The inner surface of the SMC panel is provided as an uneven surface so that the contact area between the adhesive and the inner surface of the SMC panel is increased.

The uneven surface is characterized in that it is provided by spraying the particles with a higher hardness than the SMC (SHEET MOLDING COMPOUND) on the inner surface of the SMC (SHEET MOLDING COMPOUND) panel in the drying process after molding.

The uneven surface is characterized in that it is provided in the SMC (SHEET MOLDING COMPOUND) panel forming process through the lattice projection provided on the mold surface for forming the SMC (SHEET MOLDING COMPOUND) panel.

A sealing material is filled between the SMC (SHEET MOLDING COMPOUND) panels, and each inner wall of the water receiving space formed through a plurality of SMC (SHEET MOLDING COMPOUND) panels and a sealing material forms a flat surface.

In addition, the water tank construction method according to the present invention comprises the steps of forming a concrete to form a concrete structure having a water receiving space therein by placing concrete in the formwork to form a concrete wall; A panel attaching step of attaching the plurality of sheet forming compound panels to the inner wall of the concrete wall using an adhesive so that an inner surface of the concrete wall forming the water receiving space is covered with a plurality of sheet forming compound panels; And a finishing sealing step of sealing between the SMC (SHEET MOLDING COMPOUND) panels using a sealing material.

In addition, the water tank repair method according to the present invention is to reinforce the inner wall of the concrete wall in the existing water tank provided with a concrete structure having a water receiving space in the concrete wall, the inner surface of the concrete wall forming the water receiving space A debris removing step of removing debris; A panel attaching step of attaching the plurality of sheet forming compound panels to the inner wall of the concrete wall using an adhesive so that an inner surface of the concrete wall forming the water receiving space is covered with a plurality of sheet forming compound panels; And a finishing sealing step of sealing between the SMC (SHEET MOLDING COMPOUND) panels using a sealing material.

As described above, according to the water tank, the construction method and the repair method according to the present invention, the SMC panel is provided on the inner surface of the concrete wall forming the water receiving space, the SMC panel is simply attached to the concrete wall through the adhesive Is fixed. Therefore, according to the present invention, there is no need to use a separate fastening member such as an anchor bolt when the SMC panel is attached, so that the construction and repair work of the water tank can be performed more quickly.

In addition, according to the water tank according to the present invention and its construction method and repair method, since the inner wall of the water receiving space of the water tank is provided with a flat surface without employing a fastening member such as an anchor bolt, the water tank according to the present invention receives water Not only does it make it easier to clean the inner surface of the space, but even if the water tank is used for a long time, there is no need to worry about corrosion problems of the fastening member, thereby greatly improving product reliability.

1 is a cross-sectional view showing a part of the structure of the water tank according to the first embodiment of the present invention.
FIG. 2 is an enlarged view of the attachment structure between the SMC panel and the concrete wall in FIG.
FIG. 3 is an enlarged view of the sealing structure between the SMC panels attached to the concrete wall in FIG.
Figure 4 illustrates in sequence the panel mounting step of the water tank construction process according to the first embodiment of the present invention.
FIG. 5 is an enlarged view of the attachment structure between the SMC panel and the concrete wall in the water tank according to the second embodiment of the present invention.
FIG. 6 is an enlarged view of the attachment structure between the SMC panel and the concrete wall in the water tank according to the third embodiment of the present invention.
FIG. 7 is an enlarged view of the attachment structure between the SMC panel and the concrete wall in the water tank according to the fourth embodiment of the present invention.
FIG. 8 is an enlarged view of the attachment structure between the SMC panel and the concrete wall in the water tank according to the fifth embodiment of the present invention.

Next will be described with respect to the water tank according to the first embodiment of the present invention.

As shown in FIG. 1, the water tank 1 according to the present embodiment is a water supply facility provided with a concrete structure to accommodate a large amount of water therein, and has a water receiving space 10a having a predetermined size provided in a rectangular shape therein. It is provided, the water receiving space (10a) is formed through the space between each side and the bottom surface inside the concrete wall (10). The water tank 1 may be provided as a single facility or installed in the basement of a building.

In the water tank 1 according to the present embodiment, the inner surface of the concrete wall 10 forming the water receiving space 10a is covered with a plurality of SMC (SHEET MOLDING COMPOUND) panels 20.

The SMC panel 20 is a sheet-shaped panel impregnated with a reinforcing material and filler, a releasing agent, a pigment, a catalyst, and the like in a liquid unsaturated polyester resin, and then chemically increased in viscosity and press-molded by a press. Excellent water and corrosion resistance guarantees perfect watertightness.

Therefore, in the case of the water tank 1 covered with the SMC panel 20 on the inner surface of the concrete wall 10, even if used for a long time does not corrode the inner surface in contact with water, it is guaranteed a perfect water tightness at a low cost investment. In addition, since the SMC panel 20 completely blocks the light and has an effect of suppressing the generation of bacteria or the growth of bacteria in the water receiving space 10a, the water receiving space 10a surrounded by the SMC panel 20 is The water contained therein can be hygienically stored for a longer period of time.

In the present embodiment, the SMC panel 20 is provided as a panel having a square shape, but the SMC panel can be modified in various forms such as a rectangle or a triangle.

In this embodiment, each SMC panel 20 is simply attached to and fixed to the concrete wall 10 through the adhesive (b). As described above, the attachment structure of the SMC panel 20 using the adhesive (b) takes into account the light material properties of the SMC panel 20. When the SMC panel 20 is attached, it is necessary to use a separate fastening member such as an anchor bolt. By doing so, the water tank 1 can be installed more quickly.

In addition, when the SMC panel 20 is attached to the concrete wall 10 using the adhesive (b) without using an anchor bolt, the structure protruding toward the outer surface of the SMC panel 20 is not formed, so that the water receiving space 10a Each inner wall of) can be formed into a flat surface more easily. As such, when the inner wall of the water receiving space 10a is formed as a flat surface, not only the inner surface of the water receiving space 10a is easily cleaned, but also the corrosion problem of the fastening member may be caused even when the water tank 1 is used for a long time. There is no need to worry about the product reliability of the water tank (1) can be greatly improved.

In this embodiment, each inner wall of the water receiving space (10a) is composed of a sealing material 30 to be described later is filled between the SMC (panel 20 and SMC panel 20, the sealing material 30 is SMC panel ( 20) Filled between the SMC (panel 20) to be coplanar with the surface, whereby each inner wall of the water tank (1) water receiving space (10a) forms a flat surface.

On the other hand, when the SMC panel 20 is attached to the concrete wall 10 through the adhesive (b) as described above when fixing the SMC panel 20 to the concrete wall 10 using a fastening member such as an anchor bolt. There is a fear that the bonding force of the SMC panel 20 to the concrete wall 10 is lowered. Therefore, in order to increase the bonding force between the SMC panel 20 and the concrete wall 10 through the adhesive (b), it is important to increase the contact area between the SMC panel 20 and the concrete wall 10 above all.

To this end, in the water tank 1 according to the present embodiment, the fitting protrusion 40 is provided on the inner surface of the SMC panel 20 to increase the contact area between the SMC panel 20 and the concrete wall 10. The wall () is provided with a fitting groove 50 so that the fitting protrusion 40 is fitted.

In this embodiment, the fitting protrusion 40 is configured as one in the center of the SMC panel 20, but the fitting protrusion 40 may be provided at each corner side of the SMC panel 20, such fitting protrusion ( 40 and the fitting groove 50 is also fixed through the adhesive (b) when attaching the SMC panel 20 to the inner surface of the concrete wall (10).

Therefore, between the inner surface of the SMC panel 20 and the inner surface of the concrete wall 10 and between the fitting protrusion 40 and the fitting groove 50 are provided with adhesive layers (61, 62) formed through the adhesive (b), SMC panel In order to increase the coupling force between the 20 and the concrete wall 10, it is preferable that the gap between the fitting protrusion 40 and the fitting groove 50 is narrowly formed so that the fitting protrusion 40 is tightly fitted into the fitting groove 50. Therefore, the adhesive layer 62 between the fitting protrusion 40 and the fitting groove 50 is thinner than the adhesive layer 61 formed between the inner surface of the SMC panel 20 and the inner surface of the concrete wall 10.

In the present embodiment, the fitting protrusion 40 is provided integrally with the SMC panel 40 when forming the SMC panel. Thus, if the fitting protrusion 40 is formed integrally with the SMC panel 20 when forming the SMC panel 20, there is no need to separate between the SMC panel 20 and the fitting protrusion 40 is convenient, SMC The panel 20 and the fitting protrusion 40 may also be maintained in a strongly coupled state.

In addition, although the watertightness of each SMC panel 20 may be reliably ensured according to the material properties of the SMC panel 20 itself, leakage may occur between the SMC panels 20. As shown in the drawing, the sealing material 30 is filled between the SMC panels 20 while the SMC panel 20 is attached to the inner surface of the concrete wall 10.

The sealing material 30 is filled between the SMC panel 20 in the form of a dough kneaded by mixing a liquid resin with a stone powder containing calcium carbonate as a main component, such a sealing material 30 seals between the SMC panel 20. At the same time it serves to increase the bonding force between the SMC panel 20.

Each SMC panel 20 has a chamfered surface 21 which is chamfered on one side of the surface facing the water receiving space (10a) side, and a pair of such chamfered surface between the adjacent SMC panel 20 ( 21, a “V” shaped space is formed, and the sealing material 30 is cured while being filled in the space. As described above, the sealing material 30 has a flat inner wall of the water receiving space 10a. Filled to form the same plane as the SMC panel 20 to form a surface.

On the other hand, when constructing a water tank according to the present embodiment, first, by placing concrete in the formwork to form the concrete wall 10 to form a structure for forming a concrete structure having a water receiving space (10a) is performed.

After the structure forming step, a panel attaching step of attaching a plurality of SMC panels 20 to the inner surface of the concrete wall 10 is performed. In this case, as described above, each SMC panel 20 uses an adhesive (b). To be attached to the inner wall of the concrete wall 10.

As shown in FIG. 4A, first, the fitting groove 50 is first processed in the concrete wall 10, and the fitting groove 50 and the fitting groove 50 are processed as shown in FIG. 4B. The adhesive (b) is applied to the inner surface. Since the fitting protrusion 40 is fitted into the fitting groove 50 to press the SMC panel 20 to the inner wall of the concrete wall 10, between the SMC panel 20 and the concrete wall 10 as shown in Figure 4c and As the adhesive layers 61 and 62 are formed between the fitting protrusion 40 and the fitting groove 50, the SMC panel 20 can be strongly and simply attached to the inner surface of the concrete wall 10.

And the construction of the water tank 1 is completed by the end of the sealing operation step of filling the sealing material 30 between the SMC panel 20 after the panel attachment step is completed.

In addition, the water tank 1 according to the present invention in the existing water tank that is being used as a concrete structure, to attach the SMC panel 20 to the inner surface of the concrete wall 10 to form a water receiving space (10a) It can also be formed through a simple repair, in this case the inner surface of the concrete wall 10 is reinforced through the SMC panel 20.

In this case, first, a foreign matter removal step of removing foreign substances on the inner surface of the existing concrete wall 10 is performed to prevent corruption between the SMC panel 20 and the concrete wall 10 while the SMC panel 20 is attached. After the foreign material removal step, the above-described panel attaching step and the finishing sealing step proceeds in the same way through the description of the construction process, so a detailed description thereof will be omitted.

In addition, as shown in Figures 5 and 6 showing the structure of the water tank (2, 3) according to the second and third embodiments of the present invention, the water tank in the present invention is the adhesive (b) and SMC panel 20 The inner surface of the SMC panels 20 'and 20' may be formed of uneven surfaces 21 and 22 so as to increase the contact area with the inner surface of the '20'.

As shown in FIG. 5, in which the second embodiment is shown, the uneven surface 21 is formed by spraying particles having a hardness greater than that of the SMC panel 20 ′ at a high pressure on the inner surface of the SMC panel 20 ′ in a drying process after molding. It may be provided to have an irregular pattern.

In addition, as shown in FIG. 6, in which the third embodiment is illustrated, the uneven surface 22 is provided with a lattice-shaped protrusion integrally with the mold on the surface of the mold for forming the SMC panel 20. In this case, the uneven surface 22 may have a regular pattern such as the lattice projection.

Even in the case of the water tanks 2 and 3 according to the second and third embodiments, the water tank 1 according to the first embodiment described above is discriminated only in the internal shape of the SMC panels 20 ′ and 20 ′. Since the construction and repair through the same construction and repair procedures, and the description of the construction method and the repair method of the water tank (2, 3) according to the second and third embodiments will be omitted.

7 and 8 show the structures of the water tanks 4 and 5 according to the fourth and fifth embodiments of the present invention. As shown in Figs. 7 and 8, in the fourth and fifth embodiments, the fitting protrusions 80 'and 80' provided on the SMC panels 70 'and 70' are provided in multiple stages in the protruding direction thereof. The fitting groove 50 ′ is provided to correspond to the shape of the stepped fitting protrusions 80 ′ and 80˝, and is combined with the fitting protrusions 80 ′ and 80˝, in which case the fitting protrusions 80 ′ and 80˝ are provided. The contact area between the fitting grooves 50 'is made larger so that the bonding force between the SMC panels 80' and 80 'and the concrete wall 10 through the adhesive b can be further enhanced.

In addition, in the fourth and fifth embodiments, the fitting protrusions 80 'and 80' are coupled to the inner surface of the SMC panel 70 'and 70' by an adhesive b in a separately manufactured state. In the fifth embodiment, the adhesive layer 63 is also formed between the fitting protrusions 80 'and 80' and the SMC panels 70 'and 70'. In the fourth embodiment, the fitting protrusion 80 'is the SMC panel 70. ´) and the fitting protrusion 80 ′ is made of engineering plastic in the fifth embodiment.

In the case of the water tanks 4 and 5 according to the fourth and fifth embodiments, the adhesive area of the adhesive between the SMC panels 70 ′ and 70 ′ and the concrete wall 10 is almost the same, but as in the fifth embodiment, When the fitting protrusion 80 ′ is provided with an engineering plastic that adheres to the adhesive better than the SMC, the coupling force between the SMC panel 70 ′ and the fitting protrusion 80 ′ may be greater.

In the case of the water tanks 4 and 5 according to the fourth and fifth embodiments, only the process of coupling the fitting protrusions 80 ′ and 80 ′ to the SMC panels 70 ′ and 70 ′ is added. Since the construction and repair are carried out through the same construction and repair procedures as the water tank 1 according to the embodiment, the description of the construction method and the repair method of the water tanks 4 and 5 according to the fourth and fifth embodiments are omitted. Do it.

10: concrete wall 10a: water receiving space
20: SMC panel 21, 22: uneven surface
30: sealing member 40: fitting protrusion
50: fitting groove 61,62: adhesive layer

Claims (13)

In the water tank provided with a concrete structure having a water receiving space therein, the inner surface of the concrete wall forming the water receiving space is covered with a plurality of SMC (SHEET MOLDING COMPOUND) panel,
The SMC (SHEET MOLDING COMPOUND) panel is bonded to the inner surface of the concrete wall through an adhesive,
The inner surface of the SMC panel is provided with an uneven surface so that the contact area between the adhesive and the inner surface of the SMC panel is increased.
The concave-convex surface is a water tank, characterized in that by spraying the particles with a hardness greater than the SMC (SHEET MOLDING COMPOUND) on the inner surface of the SMC (SHEET MOLDING COMPOUND) panel in the drying process after molding at high pressure. The method of claim 1,
A fitting protrusion is provided on an inner surface of the SMC panel to increase the contact area between the SMC panel and the concrete wall. And an adhesive layer formed through the adhesive between the inner surface of the SMC panel and the inner surface of the concrete wall and between the fitting protrusion and the fitting groove. The method of claim 2,
The adhesive tank formed between the fitting protrusion and the fitting groove is thinner than the adhesive layer formed between the inner surface of the SMC (SHEET MOLDING COMPOUND) panel and the inner surface of the concrete wall. The method of claim 2,
The fitting protrusion is characterized in that the water tank is formed integrally with the SMC (SHEET MOLDING COMPOUND) panel when forming the SMC (SHEET MOLDING COMPOUND) panel. The method of claim 2,
The fitting protrusion is provided to be stepped in the direction of protrusion water tank, characterized in that coupled to the SMC (SHEET MOLDING COMPOUND) panel. 6. The method of claim 5,
The fitting protrusion is characterized in that the water tank is provided with the same material as the SMC (SHEET MOLDING COMPOUND) panel 6. The method of claim 5,
The fitting protrusion is characterized in that the water tank is provided with engineering plastics. delete delete In the water tank provided with a concrete structure having a water receiving space therein, the inner surface of the concrete wall forming the water receiving space is covered with a plurality of SMC (SHEET MOLDING COMPOUND) panel,
The SMC (SHEET MOLDING COMPOUND) panel is bonded to the inner surface of the concrete wall through an adhesive,
The inner surface of the SMC panel is provided with an uneven surface so that the contact area between the adhesive and the inner surface of the SMC panel is increased.
The uneven surface is a water tank, characterized in that provided in the forming process of the SMC (SHEET MOLDING COMPOUND) panel through a lattice projection provided on the mold surface for forming the SMC (SHEET MOLDING COMPOUND) panel. The method of claim 1,
Sealing material is filled between the SMC (SHEET MOLDING COMPOUND) panel, each inner wall of the water receiving space formed through a plurality of SMC (SHEET MOLDING COMPOUND) panel and the sealing material is characterized in that a flat surface. Forming a concrete wall by pouring concrete into the formwork to form a concrete wall; forming a concrete structure having a water receiving space therein;
The plurality of SMC panels are attached to the inner wall of the concrete wall by using an adhesive such that the inner surface of the concrete wall forming the water receiving space is covered with a plurality of sheet molding compounds. In order to increase the contact area with the inner surface of the SMC (SHEET MOLDING COMPOUND) panel, after forming the SMC (SHEET MOLDING COMPOUND) panel, during the drying process, finer particles having higher hardness than SMC (SHEET MOLDING COMPOUND) are sprayed at a high pressure, so that the uneven surface Panel attaching step using the formed;
And a finishing sealing step of sealing between the SMC (SHEET MOLDING COMPOUND) panels by using a sealing material. In the existing water tank provided with a concrete structure having a water receiving space inside the concrete wall to reinforce the inner wall of the concrete wall
A debris removing step of removing debris on an inner surface of the concrete wall forming the water receiving space;
The plurality of SMC panels are attached to the inner wall of the concrete wall by using an adhesive such that the inner surface of the concrete wall forming the water receiving space is covered with a plurality of sheet molding compounds. In order to increase the contact area with the inner surface of the SMC (SHEET MOLDING COMPOUND) panel, after forming the SMC (SHEET MOLDING COMPOUND) panel, during the drying process, finer particles having higher hardness than SMC (SHEET MOLDING COMPOUND) are sprayed at a high pressure, so that the uneven surface Panel attaching step using the formed;
Finishing sealing step of sealing between the SMC (SHEET MOLDING COMPOUND) panel using a sealing material; water tank repair method comprising a.

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