JP2006090046A - Termite prevention foundation structure of building and termite prevention foundation construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a termite prevention foundation structure of a building having termite prevention property without being damaged by termite, etc., at the same time, having no gap allowing termite, etc. to pass and excellent in thermal insulation and its construction method. <P>SOLUTION: The termite prevention foundation structure of the building is a foundation structure providing a termite prevention panel 3 consisting of a plurality of platy polycarbonate resin foams 4 to the inside and/or the outside of a foundation rise section, and as the termite prevention panel 3, a plurality of foams 4 form butt sections 6 in the vertical direction to arrange them in the horizontal direction, and a plurality of steps of the foams 4 are arranged without forming the butt sections 6 in the vertical direction of both of foams 4 in the linear shape to the upper end from the lower end of the termite prevention panel 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ant-proof foundation structure of a building using an ant-proof wall that is not easily damaged by insects such as termites, and a method for constructing the ant-proof foundation.

  Conventionally, foamed plastic has been used as a heat insulating material and a soundproofing material in building construction such as a house. In particular, foamed polystyrene has been frequently used in places close to the ground, such as cloth foundations, and in places with high humidity, because of its heat insulation, mechanical strength, ease of handling, and low cost. However, expanded polystyrene has a problem that it is easily damaged by termites.

  In order to solve the problem of damage caused by termites, Patent Document 1 discloses the use of an ant-proof material made of a polycarbonate resin foam. Polycarbonate resin foam is a material that is far less susceptible to termite damage because its mechanical strength is far superior to expanded polystyrene and the like.

  However, even if the ant-proof foundation structure is constructed using the polycarbonate resin foam, there is still a possibility of being damaged by termites. That is, in the ant proof foundation structure, since a plurality of plate-like polycarbonate resin foams are arranged to butt in the horizontal direction, a butt portion between the plate-like foam and the plate-like foam is formed in the vertical direction. Is done. For this reason, if there is a gap through which termites can pass in the abutting portion, it is difficult to completely prevent the termites from entering the building through the gap. In particular, since the polycarbonate resin foam is cut at the construction site to adjust the length, the dimensional accuracy of the cut surface tends to be poor, and this causes a gap in the vertical butt portion.

JP-A-11-236736

  It is an object of the present invention to provide a ant-proof foundation structure for a building that has ant-proofing properties that are not corroded by termites and the like, has no gaps through which termites and the like easily pass, and is excellent in heat insulation, and a construction method thereof. .

ADVANTAGE OF THE INVENTION According to this invention, the ant-proof foundation structure of a building shown below and the ant-proof foundation construction method of a building are provided.
[1] A basic structure in which a plurality of plate-shaped polycarbonate resin foams are provided on the inside and / or outside of the foundation rising portion, and the foam is vertical as the ant-proof panel. A plurality of foams are arranged in a plurality of horizontal directions without forming a vertical abutting part between the foams in a straight line from the lower end to the upper end of the ant protection panel. The ant-proof foundation structure of a building characterized by being made.
[2] The vertical butt portion between the upper and lower rows adjacent to each other includes at least 5 cm or more that is difficult to be horizontal, so that the vertical butt portion between the foams is straight from the lower end to the upper end of the termite panel. The ant-proof foundation structure for a building according to [1], wherein the foam is disposed without being formed into a shape.
[3] The polycarbonate-based resin foam has two tips for driving and is fixed by using a pair of nails formed with the two tips facing in opposite directions. [1] or [2], the ant proof foundation structure of the building.
[4] The polycarbonate resin foam has an average cell thickness of 5 to 1000 μm, an apparent density of 30 to 600 kg / m ³ , and a thickness of 2 to 100 mm. ] The ant-proof foundation structure of the building in any one of-[3].
[5] Form an opposing mold using an ant-proof panel as at least one mold or as an lining material of at least one mold, and in a space formed between the opposing molds Concrete is cast and solidified, and the ant-proof panel is integrated with the foundation rising part to construct the ant-proof foundation, and a plurality of plate-like polycarbonate resin foams are used as the ant-proof panel. The vertical abutting portion is used to dispose the foam in the horizontal direction, and the vertical abutting portion between the foams does not form a straight line from the lower end to the upper end of the ant protection panel. A method for building an ant proof foundation for a building, characterized by arranging a plurality of foams.

According to the invention relating to claim 1 of the present invention, it is possible to prevent the entry of termites into the building even if there is a gap in the vertical abutting portion between the plate-like polycarbonate resin foams. An ant-proof foundation structure for a building that has ant-proof properties that are not damaged by termites and that also has excellent heat insulation properties is provided.
According to the invention according to claim 2 of the present invention, there is provided an ant proof foundation structure for a building that can more reliably prevent termites from entering the building from the abutting portion.
According to the invention according to claim 3 of the present invention, the adjacent polycarbonate resin foams are firmly fixed to each other by using the pair of nails, and a gap is formed in the butt portion due to a side pressure or the like at the time of placing the concrete in the foundation construction. Therefore, it is possible to reliably prevent an intrusion of a termite into a building by a butting portion without a gap.
According to the invention according to claim 4 of the present invention, by using a recyclable polycarbonate resin foam having a specific average cell thickness, apparent density, and thickness, excellent ant-proofing properties and heat insulation An ant-proof foundation structure for a building having the property is provided.
According to the invention according to claim 5 of the present invention, the concrete is placed and solidified by using a specific ant protection panel as a facing mold or the like, and the efficiency is improved by integrating the ant protection panel with the foundation. It is possible to construct an ant proof foundation structure of a building that has good ant proof and heat insulation properties.

Hereinafter, the ant proof foundation structure of a building of the present invention and the ant proof foundation construction method of the building will be described in detail.
In the ant proof foundation structure of the present invention (hereinafter also simply referred to as a foundation structure), ant proof panels are provided on the inside and / or outside of the foundation. An example of such a basic structure is shown in FIGS.
1 is a sectional view of the foundation structure, FIG. 2 is a front view of the foundation structure, in which 1 is an ant-proof foundation structure, 2 is a foundation rising portion of a concrete foundation, and 3 is an ant-proof panel. 4 is a polycarbonate resin foam, 5 is a base, 6 is a vertical butt, 7 is a horizontal butt, and 8 is the ground.
However, in FIG. 1, the ant-proof panel is provided on both the inside and the outside of the foundation, but the case where the ant-proof panel is provided on either the inside or the outside of the foundation is also included in the present invention.

  The ant-proof panel constituting the basic structure of the present invention comprises a plurality of plate-like polycarbonate resin foams. The polycarbonate resin foam will be described in detail later.

  In the above-mentioned ant-proof panel, a plate-like polycarbonate resin foam (hereinafter also simply referred to as a foam) is arranged in a plurality of horizontal directions so as to form a butt portion in the vertical direction. And form a butt. This vertical butt portion may be a gap through which termites can pass. However, according to the present invention, it is possible to completely prevent termites from entering the building through the gaps. Can be prevented.

  In the present invention, a plurality of steps of the foam arranged in the horizontal direction are arranged in the vertical direction, and the vertical abutting portions of the foams are linearly formed from the lower end to the upper end of the ant protection panel. It has not been. That is, a plurality of foam steps are arranged in the vertical direction, and the vertical abutting portion includes a portion in which the vertical abutting portions are arranged to be different in the horizontal direction between adjacent steps. The part is not formed in a straight line from the lower end to the upper end of the ant protection panel. When the vertical butt portion is formed in this manner, termites can be prevented from entering the building through the butt portion.

  Next, the vertical butt portion in the present invention will be described in detail with reference to FIGS. 2 is a view showing an example in which the foam 4 is arranged in two stages A and B, and FIG. 3 is an example in which the foam 4 is arranged in three stages A, B, and C. It is drawing which shows an example made.

  In the case of the ant-proof panel shown in FIG. 2, the foam 4 is arranged to form two horizontal steps A and B, and the vertical butting portion 6 between the foams extends from the lower end to the upper end of the ant-proof panel. The foam 4 is arranged in a plurality of stages without being formed in a straight line. That is, the upper stage A and the lower stage B are disposed adjacent to each other, and the butting portion 6a and the butting portion 6b are arranged so as to be difficult in the horizontal direction. The butt portion 6a of the stage B is formed so as not to be linear. In this case, two butted portions 6b and 6c of the stage A are adjacent to one butted portion 6a of the stage B.

  Thus, when the foam 4 is arranged, even if the termites scoop up the butt portion 6a of the step B, the butt portions 6b and 6c of the step A are blocked by the butt portion 7 in the horizontal direction. I can't get to. In this case, since the foam A in the step A is abutted against the foam 4 in the step B without any gaps, the termites pass through the horizontal butting portion 7 so as to pass through the gap in the vertical butting portion 6. I can't pass.

  Here, the longer the length of the butting portion 6 (that is, the lengths of L1 and L2), the longer termite can be blocked. From this viewpoint, the length of the butt portion 6 is preferably 5 cm or more, more preferably 10 cm or more, and particularly preferably 30 cm or more. The maximum length of the difference is usually 180 cm, although it varies depending on the horizontal length of the foam 4.

  In the case of the ant-proof panel shown in FIG. 3, the foam has three horizontal steps A, B, C formed in the vertical direction, and the vertical butting portion 6 between the foams is prevented. The foam 4 is arranged without being formed linearly from the lower end to the upper end of the ant panel. However, in the case of FIG. 3, the vertical abutting portion 6 of the stage A and the vertical abutting portion 6 of the stage B are arranged so as to be difficult in the horizontal direction. However, the vertical abutting portion 6 of the step B and the vertical abutting portion 6 of the step C are formed linearly.

  In the present invention, it is necessary that the vertical butt portion is not formed in a straight line from the lower end to the upper end of the ant protection panel. The vertical butt does not need to be different from each other in the horizontal direction, and the vertical butt is linear from the lower end to the upper end of the ant-proof panel by the presence of the above-mentioned different portions between any steps. If it is not formed, an example is shown in FIG. Thus, if the portion where the vertical butting portion is not formed in a straight line is formed between any of the steps, it is possible to prevent the entry of termites.

  In addition, if the peripheral surfaces of the foam forming the butt portion are formed at right angles to the surface of the foam, it is possible to prevent a gap through which termites can pass from occurring in the butt portion between the foams. However, the foam plate is used after being cut to an appropriate length according to the basic drawing at each construction site. Therefore, even if the peripheral surface of the foam is formed at right angles to the surface of the foam at the time of factory shipment, the peripheral surface that forms the vertical butt portion in the cutting work of the basic formwork at the construction site It is difficult to install while maintaining the right angle accuracy. Therefore, the inventors of the present invention have a right angle accuracy at the time of shipment from the factory, even if the foam plate is cut at the construction site for length adjustment. In view of this, it has been conceived that it is possible to utilize the fact that a gap through which termites can pass is not generated in the butting of the peripheral surfaces forming the butting portion in the horizontal direction. As a result, it was possible to block the passages through which termites pass and succeeded in preventing termites from entering the building.

In the present invention, it is preferable that the foam, particularly the upper and lower foams, are fixed by using a pair of nails in which two tips for driving are formed in opposite directions. In addition, when fixing a foam with a companion nail, not all the butted parts of the foams need to be fixed with the companion nail. It can also be fixed. When the phase nail is used, the foams can be firmly fixed. An example of a phase nail is shown in FIG. FIG. 4 is a perspective view of a companion nail, in which 11 is a companion nail, 12a and 12b are driving tips, 13 is a head, 14a and 14b are trunks, and 15 is a groove. .
The use of the above-mentioned nails is a preferable aspect in that it is possible to reliably prevent the possibility that a gap is generated in the butt portion due to the side pressure at the time of placing the concrete in the foundation structure construction, but the present invention is not limited thereto. For example, a foam may be used to fix the foams together.

  If the above-mentioned nail is used, for example, the upper and lower foams can be firmly fixed by driving the tip 12a into the upper foam and driving the tip 12b into the lower foam. Furthermore, it is preferable that a head 13 is formed at the center of the phase nail. If the head 13 is formed at the center portion of the companion nail, the foam can be stably fixed because it is not driven too deeply into one of the foams. Moreover, it is preferable that the groove | channel 15 is formed in each of the two trunk | drum 14a, 14b of this nail | claw. If the groove 15 is formed, the foam can be more firmly fixed. From this point of view, the groove is more preferably a ring groove, but may be a screw groove.

Next, the polycarbonate resin foam used in the present invention will be described.
In the foam, the average cell thickness is preferably 5 to 1000 μm, more preferably 10 μm to 1000 μm. If the average bubble film thickness is too thin, there is a risk that termites will be eroded and ant trails may be formed, and if the average bubble film thickness is too thick, a lightweight foam performance with good heat insulation is expected. There is a risk that it will not be possible.

The apparent density of the foam is preferably ³⁰ to 600 kg / m ³ , more preferably 40 to 400 kg / m ³ . If the density is too small, the average bubble film thickness of the foam may be reduced and may be damaged by termites. Further, if the bubble film is made thick while the density is kept small, the bubble diameter becomes too large, resulting in poor physical properties such as heat insulation. On the other hand, if the density is too high, properties such as heat insulation and light weight may be impaired.

The above average bubble film thickness refers to the following formula (1) obtained by modifying the formula (3.3) on page 222 of Plastic Foam Handbook (published on February 28, 1973). It means the bubble film thickness (t) (unit: μm) calculated by substituting the polymer volume fraction (Vs) of the body and the average bubble diameter (d) (unit: μm).
t = d [(1-Vs) ^{-1 / 3-1} ] (1)
The polymer volume fraction (Vs) is obtained by dividing the volume of the resin constituting the foam by the foam volume.

Further, the average bubble diameter (d) is determined as follows.
The foam is cut at an arbitrary position so that a cross section orthogonal to the width direction of the foam and a cross section orthogonal to the length direction of the foam are obtained, and one of the cross sections is first microscope or the like Is enlarged and projected onto a screen or a monitor using the, and exists on a straight line of any length (L) (unit: μm) from any bubble film in the horizontal direction to any other bubble film on the projected image The number of bubbles (N) is counted, and an average cell diameter (D) in one direction (unit: μm) is obtained by the following equation (2). However, the starting point of the straight line is an arbitrary bubble film, the end point is another arbitrary bubble film, and in principle there are at least 10 bubbles between the starting point and the end point. When the number of bubbles present in the minimum dimension is less than 10, the measurement is performed between the maximum number of bubbles that can be measured.
D = (L ÷ N) ÷ 0.616 (2)
Subsequently, an average cell diameter (D) is obtained in the same manner in the thickness direction orthogonal to the above direction using the same cross section. Finally, the average cell diameter (D) is similarly obtained for the horizontal direction perpendicular to the two directions using the other cross section. The average bubble diameter (d) is represented by an arithmetic average value of the average cell diameters (D) in these three directions.

  As for the thickness of the foam used by this invention, 2-100 mm is desirable. More desirably, the thickness is 5 to 100 mm, further 20 to 90 mm, particularly 30 to 70 mm. If the thickness is too thin, there is a risk that it will be damaged by termites due to its thin thickness, and ant roads may be formed. If it is too thick, cost merit may be lost.

  The length of the foam is preferably 600 to 4000 mm, more preferably 1000 to 2500 mm, and particularly preferably 1500 to 2000 mm. The width of the foam is preferably 200 to 800 mm, more preferably 250 to 600 mm.

  The foam used in the present invention is produced by foaming a polycarbonate resin. The polycarbonate resin used as a raw material in this case is a polymer having a carbonic acid ester bond formed from carbonic acid and glycol or bisphenol. In particular, an aromatic polycarbonate having a diphenylalkane in the molecular chain is preferable because of excellent heat resistance, weather resistance, and acid resistance. Such polycarbonates include 2,2-bis (4-oxyphenyl) propane, 2,2-bis (4-oxyphenyl) butane, 1,1-bis (4-oxyphenyl) cyclohexane, 1,1- Mention may be made of polycarbonates in which bisphenols such as bis (4-oxyphenyl) butane, 1,1-bis (4-oxyphenyl) isobutane and 1,1-bis (4-oxyphenyl) ethane are polycondensed. Of the polycarbonates, those containing a high molecular weight component and branched polycarbonates are preferably used.

  In the polycarbonate resin, a mixture of other resins such as polyethylene resin, polyester resin, acrylic resin and the like less than 50% by weight can be used for foaming as a base resin.

  Moreover, various additives can be blended with the polycarbonate resin. Examples of the additive include a flame retardant, a heat stabilizer, a weather resistance improver, a plasticizer, a lubricant, a pigment, or a bubble regulator such as talc and silica.

  Examples of the foaming agent used for foaming the polycarbonate resin include an organic physical foaming agent and an inorganic physical foaming agent. Examples of the organic physical blowing agent include lower aliphatic hydrocarbons such as propane, n-butane, isobutane, n-pentane, isopentane and hexane, lower alicyclic hydrocarbons such as cyclobutane, cyclopentane and cyclohexane, benzene, Aromatic hydrocarbons such as toluene and xylene, aliphatic lower monohydric alcohols such as methanol and ethanol, lower aliphatic ketones such as acetone and methyl ethyl ketone, 1-chloro-1,1-difluoroethane, difluoromethane, pentafluoroethane, 1 , 1,1-trifluoroethane, 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane, 1-fluoroethane, 1,1,1,3,3-pentafluoropropane, methyl chloride, ethyl Low boiling halogenated hydrocarbons such as chloride, dimethyl Ether, diethyl ether, lower aliphatic ethers such as methyl ethyl ether. Examples of the inorganic physical foaming agent include carbon dioxide, nitrogen, and water. The above-mentioned foaming agents can be used alone or in combination of two or more. For example, different types of foaming agents can be used in combination, for example, combining an inorganic physical foaming agent and an organic physical foaming agent.

  The foam used in the present invention is obtained by subjecting a base resin made of the above polycarbonate resin to foam molding by the conventionally known extrusion foam molding, injection foam molding, press foam molding, in-mold molding of foam particles, etc. in the presence of a foaming agent. Among them, the method by extrusion foaming is preferable because a low-density plate-like foam can be easily obtained.

  In the extrusion foam molding, a polycarbonate resin raw material or the like is supplied to an extruder, heated and melted, a foaming agent is press-fitted, and the resin is extruded into the atmosphere through a slit-like extrusion hole provided at the tip of the extruder. Is done by. For example, when the slit of the die at the tip of the extruder is rectangular and is extruded into a plate shape using a guide device, a plate-like foamed molded product is obtained. In this case, it is possible to obtain a preferable plate-like foam by bringing it into contact with a sufficiently cooled guide device simultaneously with foaming and continuing the contact until the foam surface portion is sufficiently cooled. In addition, the base slit is annular, and the polycarbonate resin is foamed into a cylindrical shape, and the inner surface of the cylindrical foam is melted by passing between the rolls while the inner surface of the cylindrical foam is maintained in a softened state. A plate-like foam can be obtained by attaching. Furthermore, it is possible to adopt a multilayer extrusion foaming method in which a resin containing a foaming agent and a resin not containing a foaming agent are merged in a die, and a non-foamed resin sheet or film is applied to the foam obtained after extrusion foaming. A laminating method can also be adopted.

  The polycarbonate resin foam used in the present invention has high flame retardancy and can be recycled. In addition, the foam itself has excellent heat insulation properties, but on one or both sides or the entire surface of the polycarbonate resin foam, fiber-based heat insulating materials such as glass wool and rock wool, polystyrene foam, polyethylene foam, polypropylene foam Further, it is also possible to use a foam-type heat insulating material such as polyurethane foam, phenol resin foam, vinyl chloride resin foam, and highly filled inorganic resin foam as a composite ant-proof heat insulating material bonded with an adhesive or the like.

  In addition, in the case where heat insulation performance higher than the heat insulation performance of the foam itself is required, a high heat insulation material is selected and integrated from the heat insulation materials such as the fiber type and the foam type, and a composite ant protection It is preferable to use it as a heat insulating material. In addition, in the case where a heat insulating performance equivalent to or lower than the heat insulating performance of the foam itself is required, a cheaper one is selected from the heat insulating materials such as the fiber system and the foam system, and the present invention. Instead of part of the ant-proof material, it can be integrated into a composite ant-proof heat-insulating material, which can lead to cost reduction. Similarly, in the present invention, it is also preferable to combine the foam with a moisture-proof material such as a moisture-proof sheet, a sound-insulating material, a sound-absorbing material, a vibration-proof material, a tile, or a mortar.

  In the composite material, or where the composite material is used, there is a surface portion that is not concealed by the polycarbonate resin foam, and the surface portion may be damaged by termites or the like. It is preferable to apply an ant-proofing agent such as chloropyrifos-based, organic phosphorus-based, or pyrethroid-based or an ant-proofing sheet to the portion.

  The ant proof foundation construction method of the present invention forms opposing molds using the ant proof panel of the present invention as at least one mold or as an lining material of at least one mold, In this method, concrete is placed in a space formed between molds to be solidified and solidified, and the ant proof panel is integrated with the foundation rising portion to construct the ant proof foundation. Next, the ant proof foundation construction method for a building of the present invention will be described in detail.

  In the construction of the ant proof foundation structure of the present invention, the ant proof panel is used as a throwing mold or as a lining material of the mold in at least one of the opposing molds at the time of placing concrete, and the foundation is completed. Integrate the ant proof panel into the foundation. That is, when placing concrete in a space formed between opposing molds and constructing a concrete foundation such as a cloth foundation or a solid foundation, at least one of the opposing molds, or As the lining material of the formwork, concrete is cast and solidified using the above-mentioned ant-proof panel, and the ant-proof panel and at least the rising part of the foundation are integrated to form an ant-proof foundation structure.

  When the ant-proof panel is used as a lining material for a formwork, by nailing a plurality of polycarbonate resin foams on the inside of a concrete placing formwork made of plywood that forms at least a concrete foundation rising portion Prepare a formwork with ant-proof panels as lining material. Next, use a metal fitting to hold the separator to maintain the thickness of the concrete foundation riser, and the vertical and horizontal end thickeners to suppress the bending of the concrete casting formwork when placing concrete. Then, concrete is placed between the molds in this state. If it does in this way, after concrete will harden, if the concrete placement form will be demolded, this ant-proof panel will be in the state where it was adhered to concrete.

  In the above construction procedure, the foams that make up the ant-proof panel are formed inside the concrete placement mold made of plywood, and the vertical butt between the foams forms linearly from the lower end to the upper end of the ant-proof panel Without being done, for example, in the form of a brick pile shown in FIG. Also, when the ant-proof panel is formed in a form in which the foams are stacked in three or more stages, for example, as shown in FIG. 3, the first and second butt portions are formed in a straight line. However, in this case, in the second and third stages, for example, in the form of brick piles shown in FIG. 3, the vertical butt between the foams is linear from the lower end to the upper end of the ant-proof panel. It is necessary to arrange and nail without forming. That is, when forming the ant-proof panel by stacking three or more stages of the foams, at least one pair of adjacent upper and lower stages is a vertical butt in the form of a brick stack as shown in FIGS. What is necessary is just to nail by arranging and shifting a part. By arranging the foam in a plurality of stages in this way, the foam forms a vertical abutting portion and is arranged in the horizontal direction, and the vertical abutting portion between the foams is from the lower end of the ant-proof panel. The basic structure of the present invention can be formed by arranging a plurality of the foams without being linearly formed up to the upper end.

  When the polycarbonate resin foam is nailed to the inside of the mold made of plywood, if the nail is fastened from the foam side inside the mold, the foam is made after removing the mold made of plywood. It is preferable to perform a process of scraping the tip of the nail protruding from the body with a grinder or the like.

  In addition, in the construction of the above heat insulating material, for the purpose of saving labor and shortening the construction period, the strength of the bending rigidity of the polycarbonate resin foam is utilized, the concrete placing formwork of the plywood is omitted, and the foam is directly By using it as a concrete formwork, it can also be insulated. And in this case, the ant-proof panel arranges the foam in a form capable of forming the basic structure of the present invention as described above, and uses foam nails or a pair of nails to place the foams horizontally and vertically. Connected and formed.

  In addition, regardless of the case where a plate-like polycarbonate resin foam is used as a mold or as a lining material of the mold, the above-mentioned nail is used to fix the foams constituting the adjacent upper and lower stages up and down. It is preferable to connect the foams with each other. Moreover, the said nail | claw can also be used in order to connect this foam body to a horizontal direction naturally. As a result, the polycarbonate resin foams are firmly fixed to each other, and it is possible to reliably prevent a problem that a gap is generated in the butt portion due to a side pressure or the like at the time of placing the concrete during foundation construction.

In the above-mentioned nail, the other body portion 14a is inserted into the peripheral surface of the polycarbonate resin foam by hitting the end of one body portion 14b of the nail with a hammer. In this case, in the case where the nail has a head 13 as shown in FIG. 4, the head 13 is sunk into the peripheral surface of the polycarbonate resin foam and driven into a form that does not protrude from the peripheral surface of the foam. It is possible to eliminate a gap generated due to the thickness of the head portion 13 of the phase nail at the butt portion between the foams to be connected. Subsequently, the peripheral surface of another polycarbonate-based resin foam connected to the foam on which the nail is struck is aligned with the body portion 14b protruding from the previous peripheral surface of the foam, and the peripheral surface on the opposite side to the peripheral surface with which it is attached. By hitting the surface with a hammer, it is inserted into the foam from the peripheral surface where the body portion 14b is attached, and the foams are connected. For example, a groove as shown in FIG. 4 may be formed in the body portion of the nail so as to increase the connecting force with the foam.
Moreover, an adhesive agent can also be interposed in the butt portion between the foams.

  In the construction method of the present invention, it is preferable that the ant-proof panel and the concrete are more firmly bonded to each other when the rust-proof panel from which the skin (foam skin layer) on the concrete placing surface side is removed is used. Examples of means for removing the foam skin include a method of slicing with a blade or a heat ray, and a method of scraping with a grinder, a sander belt, a grindstone or the like. The ant-proof foundation thus obtained is preferable as an ant-proof heat-insulating foundation in an energy-saving wooden building, combined with the heat-insulating properties of the ant-proof material as a foam.

  Furthermore, in the construction of the ant proof foundation structure of the present invention, a composite ant proof having a sandwich structure in which the polycarbonate resin foam is used as a core, and face materials are laminated and integrated on both surfaces of the core with an adhesive or the like. Panels can be used. Examples of such face materials include mortars and laminates of tiles.

  By using the ant proof foundation structure of the present invention, it is possible to efficiently prevent the damage caused by termites and the like. Moreover, according to the construction method of this invention, an ant-proof cloth foundation structure can be constructed efficiently.

It is sectional drawing of the basic structure of this invention. It is a front view of the basic structure of this invention. It is a front view of the other example of the basic structure of this invention. It is a perspective view of a phase nail.

Explanation of symbols

1 Ant proof foundation structure,
2 Foundation rising portion 3 Anti-rust panel 4 Polycarbonate resin foam 5 Base 6 Vertical butt portion 6a, 6b, 6c Vertical butt portion 7 Horizontal butt portion 8 Ground 11 Phase nail
12a Tip for driving 12b Tip for driving 13 Head 14 Body 15 Groove A, B, C Foam step

Claims (5)

A basic structure in which a plurality of plate-shaped polycarbonate resin foams are provided on the inside and / or outside of the foundation rising portion, and the foams are butted in the vertical direction as the ant-proof panels. A plurality of foams are arranged in a horizontal direction without forming a vertical abutting portion between the foams from the lower end to the upper end of the ant protection panel. The ant proof foundation structure of the building characterized by this. The vertical butt portion includes at least 5 cm or more in the horizontal direction different between adjacent upper and lower rows, so that the vertical butt portion between the foams is linearly formed from the lower end to the upper end of the ant protection panel. The said ant-proof foundation structure of the building of Claim 1 by which this foam is arrange | positioned without being done. The polycarbonate-based resin foam has two tips for driving, and is fixed to each other by using a pair of nails formed with the two tips facing in opposite directions. Item 3. An ant-proof foundation structure for a building according to item 1 or 2. The polycarbonate resin foam has an average cell thickness of 5 to 1000 µm, an apparent density of 30 to 600 kg / m ³ , and a thickness of 2 to 100 mm. An ant-proof foundation structure for a building according to any one of the above. As an at least one formwork or as an lining material for at least one formwork, an opposing formwork is formed using an ant-proof panel, and concrete is driven into a space formed between the opposite formwork. It is a method of constructing and solidifying the ant proof panel by integrating the ant proof panel with the foundation rising part, and using a plurality of plate-like polycarbonate resin foams as the ant proof panel, The foam is arranged in a horizontal direction by forming a vertical abutting portion, and the vertical abutting portion between the foams does not form a straight line from the lower end to the upper end of the ant protection panel. A method for constructing an ant proof foundation for a building, which is arranged in multiple stages.

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