JP4612959B2 - Waterproof structure and construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof structure and a construction method thereof, and more particularly, can obtain a heat insulating effect, and can absorb the unevenness of the foundation and avoid the influence on the waterproof layer due to the fluctuation of the crack of the foundation. It is related with the waterproof structure which can acquire the waterproof effect which is, and can ensure the long-term safety | security of a panel joint part, and its construction method.
[0002]
[Prior art and its problems]
Commonly known waterproofing treatments applied to the surface of a concrete frame include a close contact method and a spot application method. In these construction methods, a method of providing an insulating layer by using a ventilation sheet or spotting roofing is employed so that the waterproof layer is not affected by fluctuations such as cracks in the base. . However, in such an insulating layer, the thickness is small and sufficient heat insulation cannot be obtained.
[0003]
In addition, as a waterproof treatment that exhibits a heat insulation function, after laying a heat insulation panel made of an independent foam heat insulation material, a heat insulation panel made by combining an independent foam heat insulation material and a base material, etc. on the surface to be treated of a concrete frame, There are methods such as waterproofing by laminating waterproof materials. However, in this method, the heat insulation panel used has a large cohesive force and rigidity, and adjacent heat insulation panels are laid together so that the joint of the heat insulation panel moves in zero span due to thermal expansion. This tends to cause problems such as breakage of the waterproof layer.
[0004]
Therefore, it is constructed using a reinforcing material that further provides an insulating function between the heat insulating material and the waterproof material or that can withstand a tensile stress larger than the cohesive force of the heat insulating material. In such heat insulation and waterproofing, it is necessary to provide a function capable of reducing the movement of the joint or absorbing the movement of the joint. In addition, for long-term stabilization, the material constituting the heat insulating layer needs to have sufficient dimensional stability against temperature changes. In the case of using a conventional foam insulation panel, the expansion and contraction due to temperature is large, and the cohesive force and expansion rate of the panel material are large. That is, it is difficult to avoid the influence on the waterproof layer due to fluctuations such as cracks in the base.
[0005]
In addition, in the conventional methods such as using a ventilation sheet or spotting roofing, the swelling of the waterproof layer can be solved by using a deaeration device, but the effect of heat insulation cannot be expected.
[0006]
The present invention pays attention to the above-mentioned conventional problems, and is intended to solve this problem, can obtain a heat insulation effect, absorb the unevenness of the foundation, and to the waterproof layer due to fluctuations such as cracks of the foundation. An object of the present invention is to provide a waterproof structure capable of obtaining a very good waterproof effect such as being able to avoid the influence and ensuring the long-term safety of the panel joint and its construction method. .
[0007]
[Means for solving problems]
In order to solve the above-described conventional problems, the waterproof structure of the present invention is a waterproof structure for waterproofing the surface of a concrete frame, with a predetermined gap on the surface of the concrete frame to be processed. A plurality of heat insulation panels to be laid, anchor bolts for fixing the heat insulation panel to the concrete frame, a soft foam provided in a gap between the heat insulation panels and forming a panel joint, and a concrete frame It is laminated | stacked so that the whole surface of a process target may be coat | covered, and comprises the reactive elastic waterproof material which forms a waterproof layer, It is characterized by the above-mentioned.
[0008]
In the waterproof structure of the present invention described above, the heat insulation panel adds a thermosetting resin as a binder to a curled magnetic tape contraction piece obtained by heat-treating a cut or crushed magnetic tape and adds it to a plate shape. The thing of the aspect which is the heat insulation ventilation panel currently pressure-molded is employ | adopted.
[0009]
Further, the waterproof structure of the present invention described above employs an aspect that further includes a fiber reinforcing material that is provided at least in the panel joint and reinforces the reactive elastic waterproof material.
[0010]
Furthermore, in the waterproof structure of the present invention described above, a structure that further includes a deaeration device that is attached to the heat insulating panel and releases moisture of the concrete frame is adopted. When the deaeration device is attached to the heat insulation panel in this way, the panel joint portion is secured so as to secure an air passage for allowing adjacent heat insulation panels laid with a predetermined gap to be able to vent each other. It is desirable to provide a soft foam material.
[0011]
Furthermore, in the above-described waterproof structure of the present invention, the reactive elastic waterproof material forming the waterproof layer and a thin layer made of a material having good fixing properties (for example, the same material as the reactive elastic waterproof material). The thing of the aspect etc. by which the continuous coating film of this is apply | coated previously on the surface of the said heat insulation panel is employ | adopted.
[0012]
Further, the waterproof structure construction method of the present invention includes a step of laying a plurality of heat insulation panels with a predetermined gap on a surface of the concrete frame to be treated when performing a waterproof treatment on the surface of the concrete frame, and the heat insulation panel. Fixing to the concrete frame with anchor bolts, providing a soft foam in the gap between the heat insulating panels to form panel joints, and reacting the concrete frame to cover the entire surface to be treated And a step of forming a waterproof layer by laminating a mold elastic waterproof material.
[0013]
In the construction method of the waterproof structure of the present invention described above, the heat insulating panel is obtained by adding a thermosetting resin as a binder to a curled magnetic tape contraction piece obtained by heat-treating a cut or crushed magnetic tape. The thing of the aspect which is the heat insulation ventilation panel press-molded in the shape is employ | adopted.
[0014]
Moreover, in the construction method of the waterproof structure of the present invention described above, at least the panel joint portion is provided with a fiber reinforcing material, and further includes a step of allowing the reactive elastic waterproof material to be reinforced. Thus, the process which provides a fiber reinforcement in the said panel joint part is performed prior to lamination | stacking of the said reaction type elastic waterproof material, for example.
[0015]
Furthermore, in the construction method of the waterproof structure of the present invention described above, a deaeration device is attached to the heat insulation panel to further include a step of allowing the moisture of the concrete frame to be released. The step of attaching the deaeration device to the heat insulating panel in this way is performed prior to the lamination of the reactive elastic waterproof material described above, for example. When the deaeration device is attached to the heat insulation panel in this way, the panel joint portion is secured so as to secure an air passage for allowing adjacent heat insulation panels laid with a predetermined gap to be able to vent each other. It is desirable to provide a soft foam material.
[0016]
Furthermore, in the construction method of the waterproof structure of the present invention described above, the reactive elastic waterproof material forming the waterproof layer and the material having good fixing property (for example, the same quality material as the reactive elastic waterproof material) are used. It may further include a step of previously applying and forming a thin continuous coating film on the surface of the heat insulating panel.
[0017]
[Action]
In the waterproof structure of this invention, the heat insulation panel fixed to the process target surface of the concrete frame with the anchor bolt exhibits the heat insulation function. Moreover, the reaction type elastic waterproofing material which is laminated | stacked so that the whole surface to be processed may be coat | covered with respect to a concrete frame, and forms a waterproof layer exhibits a waterproof function. Furthermore, the soft foam of the panel joint part absorbs the expansion and contraction of the heat insulation panel, thereby preventing the influence on the reaction-type elastic waterproof material due to the expansion and contraction variation generated in the heat insulation panel.
[0018]
In the waterproof structure of the present invention described above, the heat insulation panel adds a thermosetting resin as a binder to a curled magnetic tape contraction piece obtained by heat-treating a cut or crushed magnetic tape and adds it to a plate shape. By adopting a pressure-insulated heat-insulating ventilation panel, the curled magnetic tape contraction piece presents a cylindrical body having a gap inside, so that individual temperature changes can be avoided. The contraction piece of the magnetic tape is deformed, and the expansion / contraction rate of the entire panel can be kept extremely small.
[0019]
Further, in the waterproof structure of the present invention described above, if a fiber reinforcing material provided at least at the panel joint is employed, the fiber reinforcing material provided at the panel joint is the panel joint. Reinforce the reactive elastic waterproofing material.
[0020]
Furthermore, in the waterproof structure of the present invention described above, if the embodiment further including a deaeration device attached to the heat insulation panel is adopted, the deaeration device attached to the heat insulation panel is a concrete frame of the heat insulation panel. Release moisture. When the deaeration device is attached to the heat insulation panel in this way, the panel joint portion is secured so as to secure an air passage for allowing adjacent heat insulation panels laid with a predetermined gap to be able to vent each other. By providing the soft foam material, the plurality of installed thermal insulation panels are maintained in a state where they can be ventilated with each other.
[0021]
Furthermore, in the waterproof structure of the present invention described above, the reaction-type elastic waterproof material for forming the waterproof layer and a thin continuous film made of a material having a good fixing property are applied in advance to the surface of the heat insulation panel. By adopting the formed embodiment, it is possible to improve the fixing property of the reactive elastic waterproof material, which is the waterproof layer described above, which is laminated so as to cover the entire surface of the concrete object to be treated. It is.
[0022]
In the construction method of the waterproof structure of the present invention, first, a plurality of heat insulation panels are laid on the surface of the concrete frame to be treated with a predetermined gap, and the laid heat insulation panels are fixed to the concrete frame with anchor bolts. After that, a soft foam is provided in the gap between the heat insulation panels to form a panel joint, and a reactive elastic waterproof material is laminated on the concrete frame so as to cover the entire surface to be treated to form a waterproof layer. After each process, waterproofing is applied to the surface of the concrete frame. That is, in the construction method of the waterproof structure of the present invention, the waterproof treatment is applied to the surface of the concrete frame through the above-described steps. First, a heat insulation panel for exhibiting a heat insulation function is an anchor. It is fixed to the surface of the concrete body to be treated with bolts. Moreover, the reaction type elastic waterproof material for exhibiting a waterproof function is laminated | stacked so that the whole process target surface may be coat | covered with respect to a concrete frame. Furthermore, in order to absorb the expansion and contraction of the heat insulating panel and to prevent the reaction type elastic waterproofing material from being affected by the expansion and contraction fluctuations generated in the heat insulating panel, a soft foam at the panel joint is provided.
[0023]
In the construction method of the waterproof structure of the present invention described above, the heat insulating panel is obtained by adding a thermosetting resin as a binder to a curled magnetic tape contraction piece obtained by heat-treating a cut or crushed magnetic tape. By adopting an aspect that is a heat-insulated ventilation panel that is pressure-molded in a shape, the curled magnetic tape contraction piece presents a cylindrical body having a gap inside, so that the temperature change The individual magnetic tape contraction pieces are deformed, and the expansion and contraction rate of the entire panel can be kept extremely small.
[0024]
Moreover, in the construction method of the waterproof structure of the present invention described above, the fiber reinforcing material provided on the panel joint is at least provided with a step of providing a fiber reinforcing material on the panel joint. It is possible to reinforce the reaction-type elastic waterproof material and improve the waterproof durability at the panel joint.
[0025]
Furthermore, in the construction method of the waterproof structure of the present invention described above, if the method further includes the step of attaching the deaeration device to the heat insulation panel, the deaeration device attached to the heat insulation panel is the moisture of the concrete frame of the heat insulation panel. It is possible to keep the concrete frame in a good dry state. In particular, when renovation work is performed without removing the existing waterproofing material, it is advantageous for releasing moisture inside. When the deaeration device is attached to the heat insulation panel in this way, the panel joint portion is secured so as to secure an air passage for allowing adjacent heat insulation panels laid with a predetermined gap to be able to vent each other. By providing the soft foam material, a plurality of installed thermal insulation panels can be maintained in a state where they can be vented to each other.
[0026]
Furthermore, in the construction method of the waterproof structure of the present invention described above, the reaction type elastic waterproof material for forming the waterproof layer and the thin continuous coating film made of a material having a good fixing property are provided on the surface of the heat insulating panel. By further including a step of applying and forming in advance, it is possible to improve the fixing property of the above-mentioned reactive elastic waterproof material laminated so as to cover the entire surface of the concrete body to be treated. is there.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Here, in FIG. 1, (a)-(d) is a top view which shows embodiment which applied the waterproof structure concerning this invention to the roof waterproofing processing of the concrete frame according to the process procedure of the construction method, In FIG. (A) is sectional drawing which follows the 2a-2a line of Fig.1 (a), (b) is sectional drawing which follows the 2b-2b line of FIG.1 (b), (c) is FIG.1 (c). 2D is a cross-sectional view taken along line 2c-2c, and FIG. 4D is a cross-sectional view taken along line 2d-2d in FIG. 3 (a) to 3 (e) are plan views showing another embodiment in which the waterproof structure according to the present invention is applied to the roof waterproofing treatment of the concrete frame in accordance with the process procedure of the construction method. (A) is a sectional view taken along line 4a-4a in FIG. 3 (a), (b) is a sectional view taken along line 4b-4b in FIG. 3 (b), and (c) is shown in FIG. c) is a cross-sectional view taken along line 4c-4c, (d) is a cross-sectional view taken along line 4d-4d in FIG. 3 (d), and (e) is taken along line 4e-4e in FIG. 3 (e). It is sectional drawing which follows. Furthermore, FIG. 5 is a perspective view showing an example of a heat insulating panel used in the present invention.
[0028]
The waterproof structure of the embodiment shown in FIG. 1 and FIG. 2 includes a plurality of heat insulating panels 11, 11... Laid on the surface of the concrete casing 9 to be processed with a predetermined gap, and the heat insulating panels 11, 11. .. Are fixed to the concrete casing 9, the soft foam 13 provided in the gap between the heat insulating panels 11, 11... The reaction type elastic waterproofing material 14 which is laminated so as to cover the whole and forms a waterproof layer is provided.
[0029]
In constructing the waterproof structure of the embodiment shown in FIGS. 1 and 2, first, a plurality of heat insulation panels 11, 11... a) and FIG. 2 (a)), the heat insulating panels 11, 11... are fixed to the concrete frame 9 with anchor bolts 12 (see FIG. 1 (b) and FIG. 2 (b)). Next, a soft foam 13 is provided in the gap between the heat insulating panels 11, 11... To form panel joints (see FIGS. 1C and 2C), and the surface to be treated with respect to the concrete housing 9. The reaction type elastic waterproofing material 14 is laminated so as to cover the entire structure, and a waterproof layer is formed (see FIGS. 1D and 2D).
[0030]
On the other hand, the waterproof structure of another embodiment shown in FIG. 3 and FIG. 4 includes a plurality of heat insulating panels 11, 11... Laid on the surface to be processed of the concrete housing 9 with a predetermined gap, and the heat insulating panel. Are fixed to the concrete housing 9, and are provided in a gap between the heat insulating panels 11, 11... In addition to the reactive elastic waterproof material 14 which is laminated so as to cover the entire surface to be treated and forms a waterproof layer, as in the above-described embodiment (see FIGS. 1 and 2), at least the panel joint It is a thing of the aspect further provided with the fiber reinforcement material 15 which is provided in the part and reinforces the reaction type elastic waterproof material.
[0031]
In constructing the waterproof structure of the embodiment shown in FIGS. 3 and 4, first, a plurality of heat insulating panels 11, 11,... a) and FIG. 4 (a)), the heat insulating panels 11, 11... are fixed to the concrete frame 9 with anchor bolts 12 (see FIG. 3 (b) and FIG. 4 (b)). Next, a soft foam 13 is provided in the gap between the heat insulating panels 11, 11,... To form a panel joint (see FIGS. 3C and 4C), and at least the panel joint has a fiber reinforcing material. 15 (see FIG. 3 (d) and FIG. 4 (d)), and the reactive elastic waterproofing material 14 is laminated on the concrete casing 9 so as to cover the entire surface to be treated to form a waterproof layer ( (Refer FIG.3 (e) and FIG.4 (e)).
[0032]
Specifically, first, the heat insulating panels 11, 11... Are laid on the surface of the concrete casing 9 to be processed with a predetermined gap. The installed heat insulating panels 11, 11,... Exhibit a heat insulating function. The heat insulating panels 11, 11... Laid on the surface of the concrete casing 9 to be processed with a predetermined gap are fixed by anchor bolts 12 described later.
[0033]
As the heat insulation panel 11, for example, as disclosed in JP-A-7-256667, a thermosetting resin is added as a binder to a curled magnetic tape contraction piece obtained by heating a cut or crushed magnetic tape. Alternatively, a plate that is pressure-formed into a plate shape (heat-insulating ventilation panel) may be employed. By adopting such an aspect (heat insulating ventilation panel), a cylindrically curled magnetic tape contracting piece is three-dimensionally molded, and the curled magnetic tape contracting piece has a cylindrical body with a gap inside. In addition to exhibiting a heat insulation function, this air gap becomes a layer of air, and each magnetic tape contraction piece deforms due to temperature changes, and the expansion and contraction rate of the entire panel is kept extremely small. It is possible. Therefore, the thermal behavior of the heat insulating panels 11, 11... Is stabilized and excellent strength is ensured, and it is not always necessary to remove the existing waterproofing material in the renovation work, and the construction can be performed directly thereon. Also, compressive strength 7kg / cm ² , Bending strength 50kg / cm ² It is possible to obtain the heat insulation panels 11, 11,.
[0034]
Moreover, as a magnitude | size of the heat insulation panels 11, 11, ..., the thing of thickness = 3 mm-30 mm is employ | adopted. If the thickness is 3 mm or less, the heat insulating property cannot be obtained, which is not preferable. When the thickness is 30 mm or more, the heat insulating property is sufficient, but the material cost, the cost of transportation and carrying-in, and the handling property at the site are unrealistic. A particularly preferred embodiment is one having a thickness of 5 mm to 20 mm.
[0035]
In this embodiment, the heat insulation panels 11, 11,... Having a thickness t = 10 mm, a length = 1800 mm, and a width = 900 mm are employed. Specifically, a trade name “EM panel” (manufactured by Fuji Kasei Kogyo Co., Ltd.) or the like is adopted as the heat insulating panels 11, 11.
[0036]
Further, a clearance of 5 mm or more and 20 mm or less is ensured between the heat insulating panels 11, 11... Laid on the surface to be treated of the concrete housing 9 so as not to give the zero-span expansion / contraction action to the reactive elastic waterproof material 14. To do. In this embodiment, the heat insulating panels 11, 11,... Are arranged with a gap of 10 mm.
[0037]
In this way, the main points of the heat insulating panels 11, 11... Laid on the surface of the concrete housing 9 with a gap as described above are fixed with anchor bolts 12 such as stainless steel anchor bolts. When fixing, fix at least 5 locations per panel, for example 900mm x 1800mm, depending on the strength of the foundation. ² A pulling force of 1000 kgf or more is secured.
[0038]
As the anchor bolts 12 for fixing the heat insulating panels 11, 11,...
[0039]
In this embodiment, when fixing the heat insulating panels 11, 11. Five places were fixed per insulation panel. The pulling stress per one of the fixed anchor bolts 12 is 360 kg / m. ² Met.
[0040]
In the gap between the heat insulating panels 11, 11..., For example, a flexible polyethylene foam such as a trade name “Pef” (manufactured by Toray Industries, Inc.) having a thickness of 5 mm is used as the soft foam 13 and the gap width between the heat insulating panels. Adhesive filling to match When the soft foam 13 is filled, an air passage 13a (gap) is provided between the soft foam 13 and the underlying concrete casing 9 so that the adjacent heat insulating panels 11, 11. Adhesive was used every 30 cm (see FIG. 2).
[0041]
As the soft foam 13 for forming the panel joint described above, a molded product such as urethane, polyethylene, synthetic rubber, vinyl chloride, or an in-situ foamed resin of soft urethane is employed.
[0042]
As described above, the flexible foam 13 provided in the gap between the heat insulating panels 11, 11 and forming the panel joint absorbs the expansion and contraction of the heat insulating panels 11, 11. The influence on the reactive elastic waterproof material 14 due to the fluctuation is prevented.
[0043]
Moreover, the reaction type elastic waterproof material 14 is laminated | stacked so that the whole surface to be processed may be coat | covered with respect to the concrete housing 9, and a waterproof layer is formed. The reactive elastic waterproof material 14 forming the waterproof layer exhibits a waterproof function.
[0044]
As the reactive elastic waterproof material 14 for forming the waterproof layer, polyurethane, polyurea, elastic epoxy resin, soft polyester resin, or the like is employed. In particular, if a polyurethane waterproof material is adopted, handling is easy. Employing a quick-drying urethane resin that cures within a few seconds to several minutes after mixing is optimal because a waterproof layer is formed quickly. For expansion and contraction of the joints of the heat insulating panels 11, 11 ..., the waterproof layer integrated with the fiber reinforcing material 15 expands and contracts together with the soft foam 13, and movement of zero span is avoided, so that the waterproof layer is deteriorated. And sufficient durability can be obtained.
[0045]
In the present embodiment, a quick-drying urethane waterproof material such as a trade name “UP Base 430” (manufactured by Takeda Upplex Industry Co., Ltd.) is sprayed and cured as a reactive elastic waterproof material 14 from above the heat insulating panels 11, 11. Thus, a waterproof layer is formed.
[0046]
In the embodiment shown in FIGS. 3 and 4, instead of the waterproof layer of the embodiment shown in FIGS. 1 and 2, the glass fiber tape having a width of 70 mm is adopted as the fiber reinforcing material 15, The fiber reinforcement 15 is affixed with a urethane primer so as to cover the heat-insulating panels 11, 11... On both sides of the polyethylene foam soft foam 13, and the product name “UP Base 430” (Takedayuplex Industries) A waterproof layer is formed by spraying and curing a quick-drying urethane waterproof material such as a product made by Co., Ltd. as the reactive elastic waterproof material 14. By adopting the fiber reinforcing material 15 in this way, it is possible to improve the waterproof durability of the vertical joints of the heat insulating panels 11, 11.
[0047]
The fiber reinforcing material 15 used for improving the waterproof durability of the vertical portions of the heat insulating panels 11, 11... Is made of a synthetic fiber or an inorganic fiber which is not easily corroded such as glass, polyester, vinylon, carbon or the like. A woven or non-woven fabric is employed. The fiber reinforcing material 15 is laid, for example, so as to cover the heat insulating panels 11, 11... On both sides across the soft foam 13 filled in the gap between the heat insulating panels 11, 11. Integrate.
[0048]
The fiber reinforcing material 15 is used when it is attached after filling with the soft foam 13, when it is filled with a product formed integrally with the soft foam molded product, or a material pre-attached to one side of the panel is used. In this case, an arbitrary method can be adopted.
[0049]
Furthermore, taking into consideration walking properties, etc., a non-slip process is applied to the waterproof surface by adding a mixture of urethane resin binder with dredged sand, and a weather-resistant top coat paint is applied to prevent UV degradation. It is also done.
[0050]
In any of the above-described embodiments, a deaeration device (not shown) for discharging moisture inside the concrete housing 9 may be attached when the heat insulating panels 11, 11. In particular, heat is applied to a curled magnetic tape contracted piece obtained by heat-treating a cut or crushed magnetic tape, and a thermosetting resin is added as a binder to form a plate (pressure-insulating ventilation panel). If used as a panel, excellent ventilation can be obtained, and when installing a deaeration device, it is not necessary to keep a certain distance on the floor surface, even if it is installed in a part where it does not interfere with walking on the rising surface etc. It does not impair the effect. In this case, this step of attaching the deaeration device to the heat insulating panel is performed prior to laminating the reactive elastic waterproof material so as to cover the entire surface to be treated, for example, on the concrete frame, and the deaeration device is attached. Later, the reactive elastic waterproof material 14 is applied.
[0051]
In addition, by adopting a mode in which a deaeration device is attached to the heat insulating panels 11, 11... And exhausting the moisture inside the concrete housing 9, moisture contained in the interior at the time of renovation as well as new construction can be easily put into the atmosphere. The concrete housing 9 can be kept in a dry state, and a rust-preventing effect that contributes to the suppression of rust of the internal rebar in the concrete housing 9 can be expected.
[0052]
The heat insulating panels 11, 11... Have a large number of minute gaps on the surface of the heat insulating panels 11, 11. There is no problem when using quick-drying waterproofing materials, but when using waterproofing materials that take a long time to cure, there is a concern about swelling when applying the waterproofing material because it is a continuous gap. Although there is no, there is a risk of material being sucked into a pinhole. Accordingly, as shown in FIG. 5, a thin continuous coating film made of a material having good fixing properties (for example, the same material as the reactive elastic waterproof material 14) and the reactive elastic waterproof material 14 forming the waterproof layer. If 11b is preliminarily applied and formed on the surface of the panel base 11a of the heat insulating panels 11, 11,..., The fixing property of the reactive elastic waterproof material 14 as a waterproof layer is improved, and the reactive elastic waterproof material as a waterproof layer. There is no worry of pinholes in 14.
[0053]
As the thin continuous coating film 11b formed in advance on the surface of the heat insulating panels 11, 11,..., The reactive elastic waterproof material 14 as a waterproof layer and a material having a good fixing property are adopted. That is, a material that is familiar with the reactive elastic waterproof material 14, for example, a material that is the same as the reactive elastic waterproof material 14, is used as the thin continuous coating film 11b. Specific materials for the above-mentioned continuous coating film 11b include polyurethane, polyurea, elastic epoxy resin, soft polyester resin, and the like, as with the reactive elastic waterproof material 14 for the waterproof layer described above. In particular, if a polyurethane waterproof material is adopted, handling is easy. If a fast-drying urethane resin that cures within a few seconds to several minutes after mixing is employed, the continuous coating film 11b can be formed quickly.
[0054]
In the present embodiment, a continuous thin layer is formed by spraying and curing a quick-drying urethane waterproof material such as “UP Base 430” (manufactured by Takeda Upplex Kogyo Co., Ltd.) on the surface of the heat insulating panels 11, 11. The coating film 11b is formed.
[0055]
Further, if the color of the thin continuous coating film 11b is set to a color tone different from that of the reactive elastic waterproof material 14 of the waterproof layer, the thickness of the waterproof layer can be managed while being constructed on site, which is very convenient.
[0056]
As described above, according to the waterproof structure of the present invention, the waterproof effect that ensures the long-term safety of the joints of the heat-insulating panels 11, 11. Is obtained.
[0057]
Further, since the thermal behavior of the heat insulating panels 11, 11... Is stable and excellent in strength, there is an advantage that the existing waterproofing material does not need to be removed in the renovation work and can be directly applied from above.
[0058]
Further, as the heat insulation panels 11, 11..., A curled magnetic tape contracted piece obtained by heat-treating a cut or crushed magnetic tape, and a thermosetting resin added as a binder and pressed into a plate shape (heat insulation ventilation) When the panel is used, the compressive strength is larger than that of a general foam heat insulating material, so that it is particularly suitable for a walking road surface.
[0059]
Furthermore, there is no need for a special ground treatment for the work, and if the insulation panel is laid out and the clearance between the insulation panels 11, 11,... The work can be completed in a short time.
[0060]
And, since the heat insulating panels 11, 11... Are mechanically fixed to the underlying concrete frame 9, even if there is rain during construction such as during the installation of the heat insulating panel, water flows on the surface of the concrete frame 9, The surfaces of the panels 11, 11... Dry quickly, and there is no problem in the construction of the waterproof material.
[0061]
Moreover, if a quick-drying urethane resin is used for the waterproof material, the construction period can be further shortened.
[0062]
Furthermore, since the heat insulating panels 11, 11,... Integrated with the waterproof layer have almost no expansion and contraction with respect to temperature change, the waterproof layer does not impair the long-term durability of the waterproof layer, such as the breaking phenomenon, and is excellent in durability. Since waterproofing is guaranteed, it can greatly contribute to the long-term stability of waterproofing.
[0063]
【The invention's effect】
In the waterproof structure of this invention, the heat insulation function is exhibited by the heat insulation panel fixed to the process target surface of the concrete frame with the anchor bolt. Further, a waterproof function is exhibited by a reaction type elastic waterproof material that is laminated so as to cover the entire surface of the concrete body to be treated and forms a waterproof layer. Furthermore, the expansion and contraction of the heat insulating panel is absorbed by the soft foam of the panel joint, and the influence on the reactive elastic waterproof material due to the expansion and contraction fluctuation generated in the heat insulating panel is prevented. Therefore, according to the waterproof structure of the present invention, it is possible to obtain a heat insulating effect and to avoid the influence on the waterproof layer due to the fluctuation of the crack of the base by absorbing the unevenness of the base. A good waterproof effect can be obtained, and long-term safety of the joint portion of the heat insulation panel can be ensured.
[0064]
In the other waterproof structure of the present invention described above, the curled magnetic tape contraction piece in the heat insulating ventilation panel adopted as the heat insulating panel presents a cylindrical body having a gap inside, thereby changing the temperature. In contrast, the individual magnetic tape contraction pieces are deformed, and the expansion and contraction rate of the entire panel can be kept extremely low, the thermal behavior of the heat insulation panel is stabilized, and excellent strength is ensured. In the renovation work, it is not always necessary to remove the existing waterproofing material, and it can be applied directly from there.
[0065]
Further, in the other waterproof structure of the present invention described above, the reactive elastic waterproof material in the panel joint is reinforced by at least the fiber reinforcing material provided in the panel joint. The waterproof durability in the part can be greatly improved.
[0066]
Furthermore, in the other waterproof structure of the present invention described above, the dehumidification device attached to the heat insulating panel allows the moisture of the concrete frame to be released, so that the concrete frame can be kept in a good dry state. It is extremely effective for suppressing rust of reinforcing bars and the like disposed inside the concrete frame.
[0067]
Furthermore, in the other waterproof structure of the present invention described above, the reaction type elastic waterproof material for forming the waterproof layer and a thin continuous film made of a material having a good fixing property are formed on the surface of the heat insulating panel. By applying and forming in advance, it is possible to improve the fixing property of the above-mentioned reactive elastic waterproof material laminated so as to cover the entire surface of the concrete body to be treated, and laminated as a waterproof layer It is possible to prevent the reaction type elastic waterproof material from being absorbed into the heat insulating panel and becoming a pinhole.
[0068]
In the construction method of the waterproof structure of the present invention, the surface of the concrete frame is subjected to waterproof treatment through the above-described steps. First, a heat insulation panel that exhibits a heat insulation function is attached to the anchor bolt. It is fixed to the surface of the concrete body to be treated. Moreover, the reaction type elastic waterproof material which exhibits a waterproof function is laminated | stacked so that the whole surface to be processed may be coat | covered with respect to a concrete frame. Furthermore, a soft foam for the panel joint that absorbs the expansion and contraction of the heat insulating panel and prevents the influence on the reactive elastic waterproof material due to the expansion and contraction generated in the heat insulating panel is provided. Therefore, according to the construction method of the waterproof structure of the present invention, it is possible to obtain a heat insulation effect and to avoid the influence on the waterproof layer due to the fluctuation of the crack of the foundation by absorbing the unevenness of the foundation. It is possible to construct a waterproof structure in which a very good waterproof effect can be obtained and long-term safety of the joint portion of the heat insulation panel can be secured.
[0069]
In the construction method of the waterproof structure of the present invention described above, the curled magnetic tape contraction piece in the heat insulating ventilation panel adopted as the heat insulating panel presents a cylindrical body having a gap inside, and the temperature is reduced. In response to changes, the individual magnetic tape shrinks deform, allowing the overall expansion and shrinkage of the panel to be kept extremely low, stabilizing the thermal behavior of the insulation panel and ensuring excellent strength. In the renovation work, it is not always necessary to remove the existing waterproofing material, and it can be applied directly from there.
[0070]
Further, in the construction method of the waterproof structure of the present invention described above, at least the panel joint portion is further provided with a fiber reinforcing material so that the reactive elastic waterproof material in the panel joint portion is reinforced, The waterproof durability in the part can be greatly improved.
[0071]
Furthermore, in the construction method of the waterproof structure of the present invention described above, a deaeration device is attached to the heat insulating panel to release the moisture of the concrete frame, and the concrete frame can be kept in a good dry state. Also, it is extremely effective for suppressing rust such as reinforcing bars arranged inside the concrete frame.
[0072]
Furthermore, in the construction method of the waterproof structure of the present invention described above, the reaction type elastic waterproof material for forming the waterproof layer and the thin continuous coating film made of a material having a good fixing property are provided on the surface of the heat insulating panel. It is possible to improve the fixing property of the reactive elastic waterproofing material as the waterproofing layer described above, which is applied and formed in advance and laminated so as to cover the entire surface to be treated with respect to the concrete frame. It is possible to prevent the laminated reactive elastic waterproof material from being absorbed by the heat insulating panel and becoming a pinhole.
[Brief description of the drawings]
FIGS. 1A to 1D are plan views showing an embodiment in which a waterproof structure according to the present invention is applied to a roof waterproofing treatment of a concrete frame in accordance with a process procedure of the construction method.
2A is a cross-sectional view taken along line 2a-2a in FIG. 1A, FIG. 2B is a cross-sectional view taken along line 2b-2b in FIG. 1B, and FIG. It is sectional drawing which follows the 2c-2c line of FIG.1 (c), (d) is sectional drawing which follows the 2d-2d line of FIG.1 (d).
FIGS. 3A to 3E are plan views showing another embodiment in which the waterproof structure according to the present invention is applied to roof waterproofing of a concrete frame in accordance with the process procedure of the construction method.
4A is a cross-sectional view taken along line 4a-4a in FIG. 3A, FIG. 4B is a cross-sectional view taken along line 4b-4b in FIG. 3B, and FIG. It is sectional drawing which follows the 4c-4c line of FIG.3 (c), (d) is sectional drawing which follows the 4d-4d line of FIG.3 (d), (e) is 4e- of FIG.3 (e). It is sectional drawing which follows a 4e line.
FIG. 5 is a perspective view showing an example of a heat insulating panel used in the present invention.
[Explanation of symbols]
9 …… Concrete frame
11 …… Insulation panel
11a: Panel base
11b: Continuous paint film
12 …… Anchor bolt
13 …… Soft foam
13a …… Ventilation channel
14 …… Reactive elastic waterproofing material
15 …… Fiber reinforcement

Claims (10)

A waterproof structure for waterproofing the surface of the concrete frame,
A plurality of thermal insulation panels laid on the surface of the concrete body to be treated with a predetermined gap;
Anchor bolts for fixing the heat insulation panel to the concrete frame;
A soft foam provided in a gap between the heat insulating panels and forming a panel joint;
Reactive elastic waterproof material that is laminated so as to cover the entire surface to be treated with respect to the concrete frame, and forms a waterproof layer;
Waterproof structure characterized by comprising. The heat insulation panel is a heat insulation ventilation panel that is pressure-molded into a plate shape by adding a thermosetting resin as a binder to a curled magnetic tape contraction piece formed by heating a cut or crushed magnetic tape. The waterproof structure according to 1. The waterproof structure according to claim 1, further comprising a fiber reinforcing material provided at least on the panel joint and reinforcing a reactive elastic waterproof material. The waterproof structure according to any one of claims 1 to 3, further comprising a deaeration device that is attached to the heat insulating panel and releases moisture of the concrete frame. 5. The reactive elastic waterproof material for forming a waterproof layer and a thin continuous coating film made of a material having good fixability are applied and formed in advance on the surface of the heat insulating panel. The waterproof structure described. In applying waterproof treatment to the surface of the concrete frame,
Laying a plurality of heat insulation panels with a predetermined gap on the surface of the concrete frame to be treated;
Fixing the heat insulation panel to the concrete frame with anchor bolts;
Providing a soft foam in the gap between the heat insulating panels, forming a panel joint,
A step of forming a waterproof layer by laminating a reactive elastic waterproof material so as to cover the entire surface to be treated with respect to the concrete frame;
The construction method of the waterproof structure characterized by including. The heat insulation panel is a heat insulation ventilation panel that is pressure-molded into a plate shape by adding a thermosetting resin as a binder to a curled magnetic tape contraction piece formed by heating a cut or crushed magnetic tape. The construction method of the waterproof structure of 6. The construction method for a waterproof structure according to claim 6 or 7, further comprising a step of providing a fiber reinforcing material at least on the panel joint portion to enable reinforcement of the reactive elastic waterproof material. The construction method of the waterproof structure according to any one of claims 6 to 8, further comprising a step of attaching a deaeration device to the heat insulating panel and enabling the moisture of the concrete frame to be released. The method according to any one of claims 6 to 9, further comprising a step of previously applying and forming on the surface of the heat insulating panel a thin continuous coating film made of a material having a good fixing property and the reactive elastic waterproof material for forming the waterproof layer. The construction method of the waterproof structure of 1 item | term.

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