JPH05302406A - Waterproof panel and waterproof construction method - Google Patents

Abstract

PURPOSE:To improve workability and durability. CONSTITUTION:Waterproof panels 1 each covered with a waterproof layer 3 on the whole face of a core material 2 made of an incombustible material such as plaster, concrete, or gas concrete are arranged on the construction surface. A sealant 6 is filled at joint portions between the waterproof panels 1. When the waterproof panels 1 are used, the work is facilitated, and the durability is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproofing method and a waterproof panel, which are mainly applied to waterproofing of buildings such as buildings.

[0002]

2. Description of the Related Art In a building or the like, if the roof portion of the building is exposed as it is as concrete, rain will be leaked, so that it is necessary to carry out waterproofing work.

In the conventional waterproofing work in such a case, the waterproofness is ensured by laying a waterproof sheet or asphalt on the rooftop or by applying a coating type waterproof solution to form a waterproof layer 42. (See FIG. 4).

[0004]

However, the waterproof processing according to the above conventional technique has many problems in terms of durability, workability of construction, and the like.

That is, it has been difficult to process joints and the like by the method using a waterproof sheet. Further, if there is an installed object on the construction surface, it is difficult to carry out the construction around the portion.
Even with the method of paving with asphalt, there was the problem that the construction would be a major undertaking. In this case, according to the Fire Service Act, in some areas, it is not permitted to leave the flammable material as the outer wall of the building as it is, so it is necessary to form the mortar layer 44 on the waterproof layer 42 such as asphalt. It was

The method of forming the waterproof layer 42 using the coating type waterproof solution has a problem that the waterproof layer 42 is weak in strength. In particular, when waterproofing a large area, it is not possible to deal with the expansion and contraction of the building due to temperature changes and the like, and the waterproof film is likely to be cut.

Further, materials such as concrete push in and take out air and water from the surface thereof due to changes in ambient temperature. However, in the above conventional technique, since the surface is completely covered, peeling or floating occurs between the waterproof sheet or the like and the concrete surface or the like. In order to prevent such a situation, as shown in FIG. 5, it is necessary to provide a deaeration tower 44 to make an escape route for water and the like. Therefore, there is a problem in that the rooftop and the balcony cannot be widely used.

Further, in the conventional method, since a large amount of solvent is used, the working environment tends to be poor.

It is an object of the present invention to solve the above problems, to provide a waterproof construction method which is easy to construct and has a high waterproof effect, and a waterproof panel used for the construction.

[0010]

The present invention has been made to achieve the above object, and in one aspect thereof, has a core material and a waterproof layer covering the entire surface of the core material. A characteristic waterproof panel is provided.

The waterproof layer is preferably formed by applying a coating type waterproof solution to the core material.

As another aspect of the present invention, there is provided a waterproofing method characterized in that a waterproof panel in which a core material is wrapped with a waterproof film is arranged on a surface to be waterproofed and a sealant is filled between the waterproof panels. To be done.

[0013]

[Function] The core material is wrapped with a waterproof film to form a waterproof panel.

In this case, if a non-combustible material such as gypsum, concrete, foam concrete, metal or brick is used as the core material, fire resistance can be imparted.

The waterproof layer is a coating type waterproof liquid, for example,
It is preferably formed by applying acrylic or urethane to the core material.

Then, the waterproof panel is arranged on a surface to be waterproofed, and a sealant is filled between the waterproof panels.

[0017]

EXAMPLE An example of the present invention will be described.

The waterproof panel 1 of this embodiment is 90 cm × 1.
It is a rectangle of 80 cm × 12 mm. Its internal structure is
As shown in FIG. 1, a non-combustible member is used as a core material 2, and a waterproof layer 3 is provided on the entire outer surface thereof.

As the core material 2, slate board, gypsum board, ALC (lightweight cellular concrete, autoclav)
ed light-weight concret
All non-combustible materials such as e), blocks, metals, non-ferrous metals, bricks, ceramics, wood, etc. can be used. Metals, non-ferrous metals, bricks, etc., have waterproofness themselves without forming the waterproof layer 3, but by forming the waterproof layer 3, it is possible to cope with rust, cracks, and the like. it can. In this embodiment, a gypsum board that is easy to process is used in consideration of workability when processing the panel on site.

If a light material such as expanded polystyrene or paper is used as the core material 2, workability is further improved. However, since styrofoam and the like are easily burned, in this case, it is necessary to separately spray mortar or the like for fire protection after the waterproof panel 1 is constructed, as in the case of the asphalt waterproofing described in the above description of the prior art. ..

The waterproof layer 3 is formed by applying a coating-type waterproof liquid to the core material 2 and drying it. For example, it is formed by coating urethane or acrylic. The thickness of the waterproof layer 3 is not particularly limited, and is determined according to the durability and expansion / contraction rate of the coating type waterproof solution used. Further, the coating method is not particularly limited. The type of the coating-type waterproof liquid is not particularly limited, but in consideration of processing the waterproof panel 1 at a construction site as described later, a water-based and quick-drying liquid is more preferable in terms of work efficiency.

When the waterproof layer 3 is formed, a net or the like may be laid to enhance the adhesion with the core material 2, or the waterproof layer 3 may be multi-layered so as to improve the waterproof property. , As needed.

Although the waterproof panel 1 shown in FIG. 1 is only rectangular, it may have other shapes, for example, triangular or hexagonal. As a result, the appearance of the building can be changed and decorativeness can be given, as compared with the case where the simple rectangular waterproof panel 1 is used. If such a decorative property is also taken into consideration, if the waterproof layer 3 that is easily colored is used, a change in color can be given.

The construction method and construction state of the waterproof panel 1 of this embodiment will be described.

First, if necessary, pretreatment is performed on the skeleton 4 such as concrete forming the roof of the building to remove dust,
Remove sand, oil, etc.

After that, the adhesive 5 is applied to the skeleton 4.
In this case, if the adhesive 5 used has waterproofness, the layer of the adhesive 5 also has waterproofness, and the waterproofness can be further enhanced. In this embodiment, as the adhesive 5, the coating-type waterproof liquid used when forming the waterproof layer 3 of the waterproof panel 1 is directly used as the adhesive.

Then, the waterproof panels 1 are arranged on it at desired intervals. In this case, the adjacent waterproof panel 1
After that, since the sealing material 6 is filled in the joint portion, that is, in the joint portion, a certain distance is required so as not to become an obstacle. This interval differs depending on the characteristics of the sealing material 6, for example, viscosity, and when the sealing material 6 having high viscosity is used, it is necessary to increase the interval. On the contrary, when the sealing material 6 having low viscosity is used, the interval may be small. However, this embodiment has a structure in which expansion and contraction and the like due to temperature changes are absorbed by the sealing material 6 and the like at the seam portion, so it is not preferable to eliminate it at all.

If the size and shape of the waterproof panel 1 do not match the construction portion, the waterproof panel 1 is cut in accordance with the construction portion as shown in FIG. Then, a waterproof solution is applied to the cut surface 12 to recover the waterproof layer (indicated by diagonal lines in the figure) and then used.

After arranging the waterproof panel on the construction surface in this manner, the joint portion is filled with the sealing material 6 as described above. In this case, in order to completely perform waterproofing, it is important that the sealing material 6 not only covers the upper side of the joint portion but also completely fills the inside thereof so that no clearance remains. In this embodiment, the same sealant 6 as the coating type waterproof liquid used in the waterproof panel 1 is used, but the sealant 6 is not limited to this.

Finally, a waterproof layer 7 having a finish is formed. Since the waterproof layer 7 remains exposed to the outside, it is necessary to be particularly excellent in light resistance and abrasion resistance. In the present embodiment, the waterproof layer 7 is also formed by using the coating type waterproof liquid, but it is not necessarily limited to this, and it may be formed by disposing a waterproof sheet or the like. ..

The waterproof layer 7 having the finish is not always necessary. Without the waterproof layer 7, that is,
Even when the waterproof panel 1 is exposed, sufficient waterproofness can be obtained as compared with the conventional method. However, in this case, it is necessary to use the waterproof layer 3 of the waterproof panel 1 having excellent light resistance and abrasion resistance.

The material of the waterproof layer 3 of the waterproof panel 1,
The sealing material 6 and the waterproof layer 7 are preferably made of materials having similar expansion and contraction rates due to temperature changes, more preferably the same material. This is to prevent peeling or the like from occurring due to a difference in expansion / contraction rate due to temperature change.

In the embodiment described above, since the waterproofing work can be performed by using the waterproofing panel which is standardized and can be integratedly manufactured in the factory, the reliability of the waterproofing work is enhanced.

Further, since it is not necessary to apply the waterproof liquid to a large area all at once, the work is easy and the construction period can be shortened. Also, it is not easily affected by the weather. Furthermore, due to these effects, it is possible to reduce construction costs such as material costs and personnel costs in waterproofing work.

By disposing the waterproof panel 1 on the skeleton 4 of the building, the temperature change of the skeleton 4 is reduced. As a result, the inflow and outflow of air and water into and from the skeleton 1 due to the temperature change is reduced, and it is not necessary to provide a deaeration tower even if the construction area is increased. Therefore, the rooftop of the building can be widely and effectively used.

Since the waterproof panel 1 is relatively small, it is less affected by expansion and contraction due to temperature changes, and cracks and pinholes are less likely to occur in the waterproof layer 3.

Even if a pinhole or the like is formed in a portion of the waterproof panel 1 located outside the waterproof layer 3 (shown as a waterproof surface 3o in FIG. 2), rainwater and the like invading from the portion will be located inside the waterproof layer 3. 3 (indicated as a waterproof layer 3i in FIG. 2) to prevent the rainwater from entering the room. In this case, since the waterproof layer 3 located inside (shown as the waterproof layer 3i in FIG. 2) does not come into direct contact with the outside air, and the temperature change is small due to the presence of the core material 2, the waterproof layer 3 is simply It has a longer life than the case where layers are provided.

In addition, even if a leak should occur, the location of the leak can be easily found. Furthermore, the repair only needs to replace the waterproof panel of the said part.

Since the waterproof panel 1 has the double structure of the core material 2, the waterproof layer 3 and the waterproof layer 3, the thermal conductivity is small as described above. Therefore, an effect like a heat insulating material can be expected, and dew condensation and generation of mold due to the dew condensation can be reduced. Such an effect is particularly effective in a building using ALC having high water absorption and a building using a compression molded material (for example, a plywood board) that absorbs moisture and easily decays. Naturally, such an effect is enhanced when a material having excellent heat insulating properties such as styrofoam is used as the core material 2.

As described above, even with waterproofness such as tiles and bricks, by forming and using the waterproof layer 3 as in the present invention, leakage from joints, leakage due to cracks and rust can be prevented. It can be greatly reduced.

In the above-mentioned embodiment, since the core material 2 uses a gypsum board having fire resistance, it is necessary to carry out a waterproofing work using the waterproof panel and then to carry out a fireproofing treatment using mortar or the like. There is no.

When the waterproof panel is arranged on the body, no nails or the like are used, so that the waterproof layer is not damaged.

Furthermore, at the work site, actual mixing and
Since the amount of solvent used is small, work can be performed while maintaining a good working environment.

In the above description, the construction on the rooftop of the building has been described as an example, but in addition to this, all parts requiring waterproofing such as balconies, roofs, walls, passages, baths, entrances, basements, pools, etc. Is applicable to.

[0045]

According to the waterproof panel of the present invention, the work involved in waterproofing work is easy and the waterproof effect can be enhanced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a waterproof panel which is an embodiment of the present invention.

FIG. 2 is an explanatory view showing a portion for waterproof construction work by the waterproof panel of the present embodiment.

FIG. 3 is an explanatory diagram showing cutting of the waterproof panel and subsequent processing.

FIG. 4 is an explanatory diagram showing a conventional waterproofing process.

FIG. 5 is an explanatory view showing a degassing tower used in a conventional technique.

[Explanation of symbols]

1: waterproof panel, 2: core material, 3: waterproof layer, 4: skeleton, 5: adhesive, 6: sealing material, 7: waterproof layer, 1
2: cut surface, 40: body, 42: waterproof membrane, 44:
Degassing tower

Claims (4)

[Claims] 1. A waterproof panel comprising: a core material; and a waterproof layer covering the entire surface of the core material. 2. The waterproof panel according to claim 1, wherein the core material is formed of a nonflammable material. 3. The waterproof panel according to claim 1, wherein the waterproof layer is formed by applying a coating type waterproof solution to the core material. 4. A waterproofing method characterized in that a waterproof panel in which a core material is wrapped in a waterproof film is arranged on a surface to be waterproofed, and a sealant is filled between the waterproof panels.