Compartment penetration treatment structure, compartment penetration treatment material, and construction method for compartment penetration treatment structure

Abstract

The present invention provides a compartment penetration treatment structure, a construction method for the compartment penetration treatment structure, and a compartment penetration treatment material that can reduce variations in fire resistance performance and improve fire resistance performance. [Solution] A partition penetration treatment structure that provides a fireproof structure for a partition penetration 15 formed in a partition 11 of a building, through which a long insertable body 21 is inserted, comprising: a heat-expandable sheet member 3 which is inserted in a sleeve shape in at least a portion of the opening 13A of the partition penetration 15 provided in the partition 11 and is arranged along the inner surface of the opening 13A; a cover member 4 which is connected to the outer peripheral side 3A of the heat-expandable sheet member 3 and closes at least a portion of the gap between the opening 13A of the partition penetration 15 and the insertable body 21; and a convex member 5 (51) provided on the outer peripheral side 3A or inner peripheral side (3B) of the cover member 4.

Description

Technical Field

[0001] The present invention relates to a partition penetration treatment structure formed in a partition part such as a building, a partition penetration treatment material for forming the partition penetration treatment structure, and a construction method of the partition penetration treatment structure.

Background Art

[0002] In buildings such as apartment houses, office buildings, and schools, partition penetration parts may be provided in partition parts such as walls to allow long insertion bodies such as cables and pipes to pass through. When a fire breaks out in any section, the partition penetration part is required to have a fire prevention measure (fire-resistant structure) to prevent the spread of fire to other sections. The partition part generally consists of two wall parts, and a hollow wall with a hollow part between the wall parts is common.

[0003] As a method of making the partition penetration part a fire-resistant structure, for example, a method of filling an amorphous filler such as a fire-resistant putty in the gap between the long insertion body and the opening is known. When using an amorphous filler, a cylindrical member made of a refractory material may be arranged together between the inside of the opening of each wall part and the insertion body (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, when amorphous fillers are used for fire protection treatment of compartment penetrations, variations in workmanship can occur, sometimes resulting in insufficient fire resistance. Furthermore, when fire-resistant materials and their accessories are installed within the building structure, the extent (quantity, thickness, length, etc.) of their installation may be unclear, or it may be difficult to determine if they are installed according to regulations. Therefore, to confirm whether fire-resistant materials are installed according to regulations, it is necessary to destroy the compartment penetration structure and inspect its internal structure.

[0006] Furthermore, in order to reduce variations among workers, there were kits that integrated components of predetermined quantities and sizes. However, these tended to have a large number of components, making it easy for components to be lost or forgotten during installation. Additionally, the packaging of each kit resulted in a large amount of waste.

[0007] Furthermore, in compartment penetration structures where long insertions such as cables and pipes are inserted, if the insertions are moved after the compartment penetration treatment structure has been applied, the fire-resistant materials installed inside may shift from their proper positions. External forces such as earthquakes can also cause the fire-resistant materials to shift from their proper positions. In addition, if the fire-resistant material does not expand uniformly but expands unevenly, it may shift from its proper position or fall off. Moreover, if an expandable fire-resistant material is used, it may expand when heated by a fire, causing it to shift from its proper position. In this way, the shifting of the fire-resistant materials from their proper positions makes it difficult for the fire-resistant structure of the compartment penetration to exhibit the desired fire resistance performance.

[0008] Therefore, the object of the present invention is to provide a compartment penetration treatment structure, a method for constructing a compartment penetration treatment structure, and a compartment penetration treatment material that can reduce variations in fire resistance performance and improve fire resistance performance. [Means for solving the problem]

[0009] This invention was made to solve the above problems, and the gist of this invention is as follows. [1] A partition penetration treatment structure for a partition penetration formed in a partition of a building, through which a long insertable body is inserted, wherein the partition penetration treatment structure comprises: a heat-expandable sheet member which is inserted in a sleeve shape in at least a portion of the opening of the partition penetration provided in the partition and is arranged along the inner surface of the opening; a cover member which is connected on the outer circumference side of the heat-expandable sheet member and closes at least a portion of the gap between the opening of the partition penetration and the insertable body; and a convex member provided on the outer or inner circumference side of the cover member. [2] The partition penetration treatment structure according to [1], wherein the convex member is provided near the boundary where the thermally expandable sheet member and the cover member connect. [3] The partition penetration treatment structure according to [1], wherein the thermally expandable sheet member does not protrude from the opening. [4] The partition penetration treatment structure according to [1], further comprising a fastening member for fixing the cover member to at least one of the partition portion and the insertion body. [5] The partition penetration treatment structure according to [1], wherein a fire-resistant material is placed in at least one of the gaps formed between the cover member and the partition, between the thermally expandable sheet member and the opening, and between the thermally expandable sheet member and the insertion body. [6] The partition penetration treatment structure according to [5], wherein the fire-resistant material is a filler. [7] The partition penetration treatment structure according to [5], wherein the fire-resistant material is a sheet material. [8] The partition penetration treatment structure according to [1], wherein there is a gap between the cover member and the insertion body, and between the thermally expandable sheet member and the partition portion. [9] The partition penetration treatment structure according to [1], wherein the convex member is a foam.

[10] The convex member is provided on the outer circumference side of the cover member, the partition penetration processing structure according to [1].

[11] The convex member is further provided on the inner circumference side of the cover member, the partition penetration processing structure according to

[10] .

[12] The partition penetration treatment structure according to [1], wherein a partition penetration treatment material comprising the thermally expandable sheet member, the cover member, and the convex member is provided on both sides of the partition portion.

[13] The partition penetration treatment structure according to [1], wherein at least one surface of the thermally expandable sheet member is covered with a metal foil composite.

[14] The partition penetration treatment structure according to [1], wherein the cover member has at least a metal foil composite.

[15] A partition penetration treatment material for making a partition penetration formed in a partition of a building and through which a long insertable body is inserted into the interior of the partition penetration, comprising: a heat expandable sheet member which is inserted in a sleeve shape in at least a portion of the opening of the partition penetration provided in the partition and is arranged along the inner surface of the opening; a cover member which is connected on the outer circumference side of the heat expandable sheet member and closes at least a portion of the gap between the opening of the partition penetration and the insertable body; and a convex member provided on the outer or inner circumference side of the cover member.

[16] A method for constructing a partition penetration treatment structure, which provides a fire-resistant structure for a partition penetration formed in a partition of a building and through which a long inserting body is inserted, comprising the steps of: inserting at least a portion of a sleeve-shaped thermal expandable sheet member into the opening of the partition penetration provided in the partition, and positioning the thermal expandable sheet member along the inner surface of the opening; closing at least a portion of the gap between the opening of the partition penetration and the inserting body with a cover member connected on the outer circumference side of the thermal expandable sheet member; and inserting the cover member until a convex member provided on the outer or inner circumference side of the cover member contacts the partition. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a compartment penetration treatment structure, a method for constructing a compartment penetration treatment structure, and a compartment penetration treatment material that can reduce variations in fire resistance performance and improve fire resistance performance. [Brief explanation of the drawing]

[0011] [Figure 1]In the partition penetration treatment structure according to the first embodiment of the present invention, it is a perspective view showing the state before the partition penetration treatment material is installed. [Figure 2] It is a cross-sectional view (part 1) showing the partition penetration treatment structure according to the first embodiment of the present invention. [Figure 3] It is a cross-sectional view (part 2) showing the partition penetration treatment structure according to the first embodiment of the present invention. [Figure 4] It is a cross-sectional view (part 3) showing the partition penetration treatment structure according to the first embodiment of the present invention. [Figure 5] It is a cross-sectional view (part 4) showing the partition penetration treatment structure according to the first embodiment of the present invention. [Figure 6] It is a schematic cross-sectional view showing the configuration of the partition penetration treatment material according to the first embodiment of the present invention. [Figure 7] In the partition penetration treatment structure according to the second embodiment of the present invention, it is a perspective view showing the state before the partition penetration treatment material is installed.

Modes for Carrying Out the Invention

[0012] Hereinafter, the present invention will be described in more detail using embodiments.

[0013] [First Embodiment] As shown in FIGS. 1 and 2, the partition penetration treatment structure according to the first embodiment of the present invention is a partition penetration treatment structure having a fire-resistant structure for a partition penetration portion 15 formed in a partition portion 11 of a building and through which a long insertion body 21 is inserted.

[0014] In the partition penetration treatment structure of the present invention, the partition part 11 is a member that partitions between compartments (the first compartment A and the second compartment B) on the wall surface of a building, and has a partition penetration part 15 that penetrates from one outer surface 11A side of the partition part 11 to the other outer surface 11B side. The partition part 11 shown in FIG. 1 is a hollow wall and is composed of two wall materials (partition materials) 12A and 12B arranged with a space (hollow part 13) therebetween. Therefore, the partition penetration part 15 is composed of an opening 13A formed in one wall material 12A, an opening 13B formed in the other wall material 12B, and the hollow part 13 between them. And the outer surface of one wall material 12A constitutes the outer surface 11A of the partition part 11, and the outer surface of the other wall material 12B constitutes the outer surface 11B of the partition part 11. The openings 13A and 13B may have, for example, circular, elliptical, or shapes approximating these.

[0015] In addition, in this specification, the members (in this embodiment, the tape-like member 4 and the fixing members for fixing them, etc.) that are constructed in the partition penetration part 15 to form the partition penetration treatment structure 10 may be collectively referred to as the partition penetration treatment material. Also, in the following, the configuration of the partition penetration treatment structure on one opening 13A side of the partition part 11 will be described. However, in this embodiment, the configuration of the partition penetration treatment structure on the other opening 13B side is the same, so the description thereof is omitted.

[0016] The partition penetration treatment structure 10 according to the first embodiment includes a thermally expandable sheet member 3, a cover member 4, and a convex member 5 as the partition penetration treatment material.

[0017] 〔Thermally expandable sheet member〕 As shown in FIG. 1, at least a part of the thermally expandable sheet member 3 is inserted into the opening 13A of the partition penetration part 15 provided in the partition part 11 in a sleeve shape and is arranged along the inner surface of the opening 13A. In order to maintain fire resistance, the thermally expandable sheet member 3 should be positioned so as not to protrude from the opening 13A. In this embodiment, the convex member 5 is positioned so that the thermally expandable sheet member 3 does not protrude from the opening 13A. This prevents the thermally expandable sheet member 3 from expanding outward from the opening 13A due to heating caused by a fire or the like, and prevents it from shifting from the appropriate position where the fire-resistant material was installed. Furthermore, the sleeve-shaped thermally expandable sheet member 3 does not necessarily have to pass through from one opening 13A to the other opening 13B, but it is preferable that it passes through the partition penetration portion 15 from one opening 13A to the other opening 13B in order to prevent the hollow portion 13 from communicating with the outside of the partition portion 11.

[0018] The thermally expandable sheet member 3 is either sleeve-shaped or can be deformed into a sleeve shape. Here, a thermally expandable sheet member 3 that can be deformed into a sleeve shape means that a sheet-shaped thermally expandable sheet member 3 is deformed into a sleeve shape by bringing its ends facing each other and then inserted into the partition penetration 15. The sheet-shaped thermally expandable sheet member 3 is not limited to being sheet-shaped from the beginning, but also includes those that have been unwound into a sheet shape from a roll. However, when deforming the thermally expandable sheet member 3 into a sleeve shape, the ends of the sheet-shaped thermally expandable sheet member 3 are not limited to butting together, but may be made into a sleeve shape by overlapping the ends. Because the thermally expandable sheet member 3 can be deformed into a sleeve shape, the size of the thermally expandable sheet member 3 can be adjusted to match the size of the openings 13A and 13B at the construction site, so it can accommodate partition penetration 15 of various sizes. The thickness of the sheet-shaped or roll-shaped thermally expandable sheet member 3 is not particularly limited, but for example, it is 0.5 to 10 mm, preferably 1 to 5 mm. The thermally expandable sheet member 3 should be flexible so that it can be deformed into a sleeve shape.

[0019] The thermally expandable sheet member 3 has the property of expanding when heated. The thermally expandable sheet member 3 prevents the spread of fire by expanding in the event of a fire. The thermally expandable sheet member 3 is manufactured from a thermally expandable resin composition. The thermally expandable resin composition contains a resin component and a thermally expandable material. By forming the thermally expandable sheet member 3 from a thermally expandable resin composition containing a resin component, the formation and deformation of the curved shape of the thermally expandable sheet member 3 becomes easier, and it can be made into a sleeve shape as described above. Examples of thermally expandable materials include thermally expandable inorganic materials. By using thermally expandable inorganic materials, they expand appropriately when heated by fire, and the mechanical strength of the expanded residue after expansion is excellent, making it easier to improve fire resistance. Note that the thermally expandable materials referred to here do not expand substantially through molding or other processes described later, and thermally expandable resin compositions maintain their thermal expandability as thermally expandable materials.

[0020] The expansion initiation temperature of a thermally expandable material is not particularly limited, but is preferably 150 to 350°C, more preferably 170 to 300°C, and even more preferably 180 to 280°C. Setting it below these lower limits prevents the thermally expandable material from expanding unintentionally due to heating other than fire. Setting it below the upper limit makes it easier to reliably expand the thermally expandable material due to heating from a fire. Furthermore, the expansion initiation temperature of a thermally expandable material can be measured by heating a predetermined amount (e.g., 100 mg) of the thermally expandable material at a constant heating rate (e.g., 10°C / min) and measuring the temperature at which the normal force begins to rise. The measuring device can be any device that allows for temperature control and measurement of stress in the normal direction; for example, a rheometer can be used. The thermal expansion ratio of the thermally expandable material is preferably 3 times or more, and preferably 10 times or more. There is no particular upper limit to the expansion ratio, but for example, it is 50 times. The expansion ratio can be calculated by supplying the thermally expandable material to an electric furnace, heating it at 600°C for 30 minutes, measuring the thickness of the test specimen, and then dividing it by (thickness of the test specimen after heating) / (thickness of the test specimen before heating).

[0021] The following describes in detail a thermally expandable resin composition when the thermally expandable material is thermally expandable graphite. Examples of resin components in a thermally expandable resin composition include thermoplastic resins, thermosetting resins, and elastomers. Examples of thermoplastic resins include polyvinyl chloride (PVC), chlorinated polyvinyl chloride resin (CPVC), fluororesins, polyphenylene ether, modified polyphenylene ether, polyphenylene sulfide, polycarbonate, polyetherimide, polyetheretherketone, polyarylate, polyamide, polyamideimide, polybutadiene, polyimide, acrylic resin, polyacetal, polyamide, polyethylene (PE) and polypropylene (PP), polyolefins such as ethylene vinyl acetate (EVA), ethylene-propylene-diene copolymer (EPDM), polyesters such as chloroprene (CR), polyethylene terephthalate, and polybutylene terephthalate, polycarbonate, polystyrene (PS), polyphenylene sulfide, acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile-styrene-acrylonitrile copolymer (ASA), and acrylonitrile / ethylene-propylene-diene / styrene copolymer (AES). Examples of curable resins include epoxy resins, phenolic resins, melamine resins, urea resins, unsaturated polyester resins, alkyd resins, polyurethanes, and thermosetting polyimides.

[0022] Examples of elastomers include natural rubber, silicone rubber, styrene-butadiene rubber, isoprene rubber, butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, nitrile-butadiene rubber, butyl rubber, ethylene-propylene rubber, ethylene-propylene-diene rubber, urethane rubber, silicone rubber, and fluororubber. Other examples of thermoplastic elastomers include olefin-based thermoplastic elastomers (TPO), styrene-based thermoplastic elastomers (TPS), ester-based thermoplastic elastomers, amide-based thermoplastic elastomers, and vinyl chloride-based thermoplastic elastomers. The resin component of the heat-expandable resin composition may be one type or a combination of two or more types.

[0023] The heat-expandable resin composition may contain a plasticizer. Plasticizers are preferably used when the resin component is a thermoplastic resin such as polyvinyl chloride resin. Specific examples of plasticizers include phthalate ester plasticizers such as di-2-ethylhexyl phthalate (DOP), dibutyl phthalate (DBP), diheptyl phthalate (DHP), and diisodecyl phthalate (DIDP); fatty acid ester plasticizers such as adipate esters such as di-2-ethylhexyl adipate (DOA), diisobutyl adipate (DIBA), and dibutyl adipate (DBA), and adipate polyester; epoxidized ester plasticizers such as epoxidized soybean oil; trimellitate ester plasticizers such as tory 2-ethylhexyl trimellitate (TOTM) and triisononyl trimellitate (TINTM); phosphate ester plasticizers such as trimethyl phosphate (TMP) and triethyl phosphate (TEP); and process oils such as mineral oil. The plasticizer may be one type or a combination of two or more types. When a heat-expandable resin composition contains a plasticizer, the amount of plasticizer in the heat-expandable resin composition is, for example, in the range of 0.3 parts by mass or more and 150 parts by mass or less, and preferably in the range of 10 parts by mass or more and 100 parts by mass or less, per 100 parts by mass of the resin component. When the plasticizer is above these lower limits, the moldability tends to be good, and when it is below the upper limits, the molded article is given appropriate strength.

[0024] The total content of resin components and plasticizers is preferably 10% to 90% by mass, more preferably 25% to 80% by mass, and even more preferably 40% to 70% by mass, based on the total amount of the resin composition. Setting the content above these lower limits improves the moldability of the thermally expandable material. It also ensures flexibility, making it easier to deform into a sleeve shape. Furthermore, setting the content below the upper limit allows for the incorporation of sufficient amounts of components such as thermally expandable graphite and inorganic fillers. Note that the total content of resin components and plasticizers refers to the combined content of both resin components and plasticizers if both are present, and to the content of resin components alone if no plasticizer is present.

[0025] Thermally expandable graphite is a conventionally known substance, produced by treating powders of natural flake graphite, pyrolysis graphite, quiche graphite, etc., with inorganic acids such as concentrated sulfuric acid, nitric acid, and selenic acid, and strong oxidizing agents such as concentrated nitric acid, perchloric acid, perchlorate, permanganate, dichromate, and hydrogen peroxide to generate graphite intercalation compounds. The resulting thermally expandable graphite is a crystalline compound that maintains the layered structure of carbon. The thermally expandable graphite used in this invention may also be obtained by neutralizing thermally expandable graphite obtained by acid treatment with ammonia, aliphatic lower amines, alkali metal compounds, alkaline earth metal compounds, etc. Examples of aliphatic lower amines include monomethylamine, dimethylamine, trimethylamine, ethylamine, propylamine, and butylamine. Examples of alkali metal compounds and alkaline earth metal compounds include hydroxides, oxides, carbonates, sulfates, and organic acid salts of potassium, sodium, calcium, barium, magnesium, and other metals.

[0026] The particle size of the thermally expandable graphite is not particularly limited, but a range of 20 to 200 mesh is preferred. If the particle size is above the lower limit, the degree of expansion of the graphite tends to increase, resulting in good foaming properties. If the particle size is below the upper limit, the dispersibility when kneading with resin improves, and moldability is enhanced.

[0027] The content of thermally expandable graphite in the thermally expandable resin composition is, for example, 3 parts by mass or more and 300 parts by mass or less per 100 parts by mass of the resin component. When the content of thermally expandable graphite is 3 parts by mass or more, good thermal expandability is achieved. Furthermore, when the content is 300 parts by mass or less, good moldability is achieved, and the surface properties, mechanical properties, and flexibility of the sealing member are also improved. From these viewpoints, the content of thermally expandable graphite is preferably in the range of 10 parts by mass or more and 200 parts by mass or less, and more preferably in the range of 15 parts by mass or more and 100 parts by mass or less.

[0028] The thermally expandable resin composition may further contain an inorganic filler. The inorganic filler is not particularly limited as long as it is an inorganic filler commonly used in thermally expandable resin compositions. Specifically, examples include silica, diatomaceous earth, alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, ferrites, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, barium carbonate, dohnite, hydrotalcite, calcium sulfate, barium sulfate, gypsum fiber, calcium silicate, talc, clay, myca, montmorillonite, bentonite, activated clay, ceviolite, imogolite, sericite, glass fiber, glass beads, silica balloon, aluminum nitride, aluminum phosphite, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balloon, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, lead zirconia titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, dewatered sludge, etc. One or more types of inorganic fillers may be used. When an inorganic filler is included, the amount of inorganic filler in the thermally expandable resin composition is preferably in the range of 3 parts by mass or more and 200 parts by mass or less, and more preferably in the range of 10 parts by mass or more and 150 parts by mass or less, per 100 parts by mass of the resin component.

[0029] The thermally expandable resin composition used in the present invention may contain various additive components as needed, as long as the objectives of the present invention are not impaired. The type of additive component is not particularly limited, and various additives can be used. Examples of such additives include lubricants, shrinkage inhibitors, nucleating agents, colorants (pigments, dyes, etc.), UV absorbers, antioxidants, anti-aging agents, reinforcing agents, flame retardant aids, antistatic agents, surfactants, vulcanizing agents, and surface treatment agents. The amount of additive component can be appropriately selected within a range that does not impair moldability, etc. Additive components may be used individually or in combination of two or more types.

[0030] A heat-expandable resin composition can be obtained by mixing a resin, a heat-expandable inorganic substance, and an optional component using known equipment such as a bead mill, Banbury mixer, kneader mixer, kneading roll, lycai machine, and planetary agitator.

[0031] The thermally expandable sheet member 3 can be configured to include a thermally expandable layer manufactured from a thermally expandable resin composition and a base material that supports the thermally expandable layer. Examples of base materials include metal foils such as aluminum foil and copper foil, metal foil composites such as glass cloth and aluminum glass cloth, paper, cloth, and resin film. Among these, from the viewpoint of fire resistance, it is preferable that the material be composed of non-combustible materials, specifically metal foil and metal foil composites, with metal foil composites being preferred. Non-combustible materials are defined in the Building Standards Act and the Building Standards Act Enforcement Order. The base material is preferably positioned to cover one side of the thermally expandable sheet member 3. Furthermore, it is preferable that the base material is positioned on the outer periphery 3A of the thermally expandable sheet member 3, opposite to the insertion body 21. By positioning the base material on the outer periphery 3A of the thermally expandable sheet member 3, the thermal expansion layer positioned inside is well supported, and heat can be evenly transferred to the thermal expansion layer, thereby facilitating the thermal expansion layer's function.

[0032] The thickness of the thermally expandable sheet member 3 is not particularly limited, but is, for example, 0.5 to 10 mm, preferably 1 to 5 mm. Having a thickness below these upper limits provides flexibility to the thermally expandable sheet member 3. Having a thickness above the lower limit makes it easier to ensure fire resistance. The thickness of the thermal expansion layer is not particularly limited, but is, for example, 0.05 to 6 mm, preferably 0.1 to 5 mm. Having a thickness of the fire-resistant layer below these upper limits provides flexibility to the thermal expansion sheet member 3. Having a thickness above the lower limit makes it easier to ensure fire resistance. The thickness of the base material is not particularly limited, but is, for example, 0.01 to 1 mm, preferably 0.05 to 0.5 mm. Having a thickness of the base material below these upper limits provides flexibility to the thermally expandable sheet member 3. Having a thickness above the lower limit makes it easier to ensure fire resistance.

[0033] It is preferable to have a gap between the thermally expandable sheet member 3 and the partition portion 11. The gap between the thermally expandable sheet member 3 and the partition portion 11 creates a margin of error for movement of the insertion body 21 perpendicular to the axial direction. Even if the insertion body 21 moves, the margin of error provided by the gap prevents the thermally expandable sheet member 3 from moving together with the insertion body 21, thereby suppressing displacement of the thermally expandable sheet member 3 from the partition penetration portion 15.

[0034] [Cover component] The cover member 4 is connected to the outer peripheral side 3A of the thermally expandable sheet member 3 and closes at least a portion of the gap 50 between the opening 13A of the partition penetration portion 15 and the insertion body 21. The cover member 4 is preferably fixed to one end 30 of the outer peripheral surface of the thermally expandable sheet member 3 by known fixing means such as an adhesive, a tack, and an adhesive tape. Here, the adhesive, tack, and adhesive tape are preferably non-combustible, semi-non-combustible, or flame-retardant materials, and it is preferable to incorporate a flame retardant into the adhesive, tack, etc.

[0035] As shown in Figure 2, the cover member 4 surrounds the insertion body 21 with a portion that covers the opening 13A of the partition penetration portion 15, and is fixed to the insertion body 21 by a string-like fastener 22 wrapped around it from the outside. The string-like fastener 22 can be any bendable material, and is preferably a wire material including a wire. The wire material may be a metal wire alone, a resin-coated wire made by coating a metal wire with resin such as Nejiriko (registered trademark), or a wire and fiber intertwined, such as a molding. Using a wire material allows the cover member 4 to be fixed to the insertion body 21 simply by twisting or turning it. Furthermore, the cover member 4 may be fixed to the insertion body 21 by fasteners such as staples or screws. Of course, the cover member 4 may also be fixed to the insertion body 21 by a combination of two or more of these fasteners. The cover member 4 is preferably positioned at least partially inside the partition penetration 15, and more specifically, the cover member 4 is preferably positioned partially inside the opening 13A. The cover member 4 is positioned between the opening 13A and the sleeve-shaped thermally expandable sheet member 3.

[0036] The cover member 4 may be further fixed to the partition portion 11 of the partition penetration portion 15 by fastening material 23. The fastening material 23 for securing the cover member 4 can be any material that can fix and secure the cover member 4 to the partition penetration portion 15 by inserting it into the partition portion 11 at the location of the heat-expandable sheet member 3 to which the cover member 4 is connected, as shown in Figure 3. As shown in Figure 4, the cover member 4 may be positioned between the outer surface 11A of the partition portion 11 and the convex member 5. In this case, the fastening material 23 for securing the cover member 4 can be any material that can fix and secure the cover member 4 to the partition penetration portion 15 by inserting it from the convex member 5 to the outer surface 11A of the partition portion 11. Furthermore, as shown in Figure 5, the cover member 4 may be positioned along the convex member 5 and the opening 13A, with at least a portion of the convex member 5 located inside the partition penetration 15. In this case, the fastening material 23 for securing the cover member 4 can be any material that is located further back than the position where the convex member 5 is positioned, and can be inserted into the partition 11 at the location of the heat-expandable sheet member 3 to which the cover member 4 is connected, thereby fixing and securing the cover member 4 to the partition penetration 15. Examples of fastening materials 23 include staples, screws, and other fastening members. In order to improve the fixing strength of the thermally expandable sheet member 3, cover member 4, and convex member 5, it is preferable to interpose washers 23A between the thermally expandable sheet member 3, cover member 4, and convex member 5.

[0037] There is a gap 50 between the cover member 4 and the insertion body 21. The gap 50 between the cover member 4 and the insertion body 21 provides a margin of error for the axial movement of the insertion body 21 and for the movement of the insertion body 21 near the opening 13A. In this way, by providing a margin of error for the movement of the insertion body 21 with the gap 50, even if the insertion body 21 moves, the margin of error provided by the gap 50 prevents the cover member 4 from moving together with the insertion body 21, and prevents the cover member 4 from shifting away from the partition penetration portion 15.

[0038] The cover member 4 is fixed with a margin of error against the axial movement of the insertion body 21. By fixing the cover member 4 to the insertion body 21 with a margin of error, even if the insertion body 21, which is positioned inside the thermally expandable sheet member 3, is moved axially after the thermally expandable sheet member 3 is installed, the margin of error of the cover member 4 can buffer the thermally expandable sheet member 3 from moving together with the insertion body 21. Furthermore, because the cover member 4 is fixed to the insertion body 21 with a margin of error, it is possible to buffer the thermally expandable sheet member 3 from moving together with the insertion body 21, thereby suppressing displacement of the thermally expandable sheet member 3 from the compartment penetration 15. In other words, with this configuration, the thermally expandable sheet member 3 can be maintained and positioned in the appropriate location within the compartment penetration 15, and the fire resistance of the compartment penetration 15 can be maintained. Configurations that allow the cover member 4 to be fixed with a margin of error against the axial movement of the insertion body 21 include, for example, a configuration in which at least a part of the cover member 4 is made of a flexible or stretchable material that can be bent or curved, and a configuration in which at least a part of the cover member 4 is fixed to the insertion body 21 with some slack.

[0039] The cover member 4 is preferably made of a non-combustible material, and can be made of a metal foil composite such as aluminum foil, glass cloth, or a composite of metal foil and glass cloth such as aluminum glass cloth. From the viewpoint of fire resistance, it is preferable that at least one surface of the cover member 4 is covered with a metal foil composite. Furthermore, the cover member 4 may be made of a non-combustible material such as a metal foil composite with a thermally expandable member laminated on it, to the extent that it does not contradict the spirit of the present invention. The thermally expandable member may be made of a thermally expandable resin composition or the like. Among the above, it is preferable that the cover member 4 has at least a metal foil composite.

[0040] The thickness of the cover member 4 is, for example, 0.01 to 1 mm, preferably 0.05 to 0.5 mm. Furthermore, the thickness of the cover member 4 is preferably thinner than that of the thermally expandable sheet member 3, from the viewpoint of improving workability, as the cover member 4 has more flexibility than the thermally expandable sheet member 3.

[0041] [Convex member] The convex member 5 is a member provided on the outer peripheral side 4A of the cover member 4. The convex member 5 protrudes outward from the outer peripheral surface of the cover member 4. The convex member 5 can determine the position of the thermally expandable sheet member 3 at the partition penetration portion 15. Specifically, the convex member 5 is locked to the outer peripheral surface of the opening 13A on its outer surface 11A, so that one end 30 of the thermally expandable sheet member 3 is positioned in a predetermined location. The shape of the convex member 5 is not particularly limited and may include, for example, a line shape extending around the outer peripheral side 4A of the cover member 4, or a block shape scattered around the outer peripheral side 4A of the cover member 4.

[0042] The convex member 5 is preferably provided near the boundary where the thermally expandable sheet member 3 and the cover member 4 connect. The convex member 5 is preferably fixed to the cover member 4 by adhesive or adhesive tape. The boundary is the boundary between the part of the cover member 4 where the thermally expandable sheet member 3 is provided and the part where it is not. The convex member 5 may be positioned so as to overlap the boundary, but it does not need to overlap precisely, and may be positioned offset from the boundary as long as the effects of the present invention are achieved. Specifically, the convex member 5 may be positioned away from the thermally expandable sheet member 3 relative to the boundary (left side in Figure 2), as long as at least a part of the thermally expandable sheet member 3 is positioned inside the opening 13A when the convex member 5 is locked to the outer surface 11A. Alternatively, the convex member 5 may be positioned on the side where the thermally expandable sheet member 3 is provided (right side in Figure 2), as long as a part of the cover member 4 is positioned inside the opening 13A when the convex member 5 is locked to the outer surface 11A.

[0043] The convex member 5 is not particularly limited as long as it is made of a material capable of locking the partition penetration treatment material to the partition portion 11. Examples include foam and caulking material, and it may also be a composite material made by combining two or more of these. Examples of foam include foamed polyethylene, foamed polypropylene, foamed polystyrene, and foamed polyurethane. The foam may also be made into a flame-retardant foam by containing a flame retardant. Examples of caulking material include one made by blending a filler and a flame retardant with a synthetic resin material such as silicone resin, acrylic resin, and urethane resin as the main component. It may also be a cushioning material other than foam. Among these, foam is preferred for the convex member 5 from the viewpoint of conformability for maintaining the heat-expandable sheet member 3 in place, adhesion to the cover member 4 via the adhesive layer, dimensional stability under normal conditions, heat insulation, design, and waterproofing.

[0044] Furthermore, as shown in Figure 2, the convex member 5 is positioned on the outer surface 11A of the partition portion 11, so that even if a gap is formed between the partition portion 11 and the cover member 4, the gap can be closed. In addition, by positioning the convex member 5 to close the gap between the partition portion 11 and the cover member 4, the gap can be concealed, improving the aesthetic appearance and fire resistance.

[0045] In the partition penetration treatment structure 10, if there are gaps between the cover member 4 and the partition portion 11, between the thermally expandable sheet member 3 and the opening 13A, and between the thermally expandable sheet member 3 and the insertion body 21, it is preferable to further arrange fire-resistant material to seal the gaps. For the fire-resistant material, a filler material such as a fire-resistant putty can be used to fill gaps. If a filler material is used, it is preferable to fill the gaps formed between the cover member 4 and the partition 11, between the thermally expandable sheet member 3 and the opening 13A, and between the thermally expandable sheet member 3 and the insertion body 21 with the filler material. Furthermore, the fire-resistant material can be a sheet material in which a fire-resistant layer made of a fire-resistant putty or the like and a base material are laminated. If a sheet material is used, it is preferable to place the sheet material in the gaps formed between the cover member 4 and the partition 11, between the thermally expandable sheet member 3 and the opening 13A, and between the thermally expandable sheet member 3 and the insertion body 21. The fire-resistant material is not particularly limited as long as it is a material with fire-resistant properties, but it is preferable that the fire-resistant material be formed from a thermally expandable resin composition containing the above-mentioned thermally expandable material.

[0046] A putty composition used as a fire-resistant putty material will be described in more detail. The putty composition contains a binder component and a filler. The binder component can be any resin component used in a heat-expandable resin composition, preferably an elastomer. More preferably, the binder component is a liquid elastomer, such as liquid polybutadiene rubber, liquid styrene-butadiene rubber, liquid chloroprene rubber, and liquid isoprene rubber. As fillers, inorganic fillers used in heat-expandable resin compositions can be used as appropriate. Among the inorganic fillers, preferred are metal hydroxides such as aluminum hydroxide, magnesium hydroxide, calcium hydroxide, talc and kaolinite, manganese hydroxide, iron hydroxide, and zinc hydroxide, phosphates, polyphosphates, polymer inorganic polyphosphates, phosphate minerals and other phosphorus compounds, and carbonate compounds such as calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate and barium carbonate, potassium carbonate, sodium carbonate, lithium carbonate, iron carbonate, and silver carbonate. Using these inorganic fillers makes it easier to impart fire resistance to the putty material. The putty composition may, if necessary, contain plasticizers, tackifiers, and other components, similar to the thermally expandable resin composition. However, the putty composition does not contain any thermally expandable materials.

[0047] The inorganic filler content in the putty composition is preferably in the range of 30 parts by mass or more and 500 parts by mass or less, more preferably in the range of 50 parts by mass or more and 400 parts by mass or less, and even more preferably in the range of 80 parts by mass or more and 250 parts by mass or less, per 100 parts by mass of the binder component. The putty material can be formed by the same method as the above-mentioned heat-expandable resin composition. In the above explanation, the putty composition was described using a resin component (organic material) as the binder component as described above, but any conventionally known material that can be used as a fire-resistant putty can be appropriately selected and used. For example, it is not necessary to use a resin component as the binder component, and a fire-resistant putty that does not contain organic material may also be used, for example, a fire-resistant putty made of clay.

[0048] The construction method for the partition penetration treatment structure 10 in this embodiment will now be described. The construction method for the partition penetration treatment structure 10 includes the following steps (I) to (III). (I) Inserting at least a portion of the sleeve-shaped thermal expandable sheet member 3 into the opening 13A of the partition penetration 15 provided in the partition 11, and positioning the thermal expandable sheet member 3 along the inner surface of the opening 13A. (II) A step of sealing at least a portion of the gap between the opening 13A of the partition penetration 15 and the insertion body 21 with a cover member 4 connected to the outer peripheral side 3A of the thermally expandable sheet member 3. (III) Inserting the heat-expandable sheet member 3 into the insertion opening 13A, the step of inserting it until the convex member 5 provided on the outer peripheral side 4A of the cover member 4 comes into contact with the partition portion 11.

[0049] The following describes a specific example of the construction method for the partition penetration treatment structure 10 in this embodiment, specifically the construction method when using a partition penetration treatment member that is an integrated unit comprising a thermally expandable sheet member 3, a cover member 4, and a convex member 5. However, the construction method of the present invention is not limited to the following.

[0050] The heat-expandable sheet member 3, which can be deformed into a sleeve shape, is in sheet form, and as shown in Figure 6, a cover member 4 is laminated and connected to one end 30 of one of its surfaces 3A. A convex member 5 is provided on one surface 4A of the cover member 4, near the boundary where the heat-expandable sheet member 3 and the cover member 4 are connected. In the configuration shown in Figure 6, the convex member 5 is preferably made of foam. It is also preferable that the ends of the convex members 5 are butted together.

[0051] The thermally expandable sheet member 3, which can be deformed into a sleeve shape, deforms into a sleeve shape to conform to the shape of the inner circumferential surface of the openings 13A and 13B that constitute the partition penetration portion 15, as shown in Figure 1. That is, the thermally expandable sheet member 3 is preferably shaped into a sleeve so that its outer circumferential surface conforms to the shape of the inner circumferential surface of the openings 13A and 13B. Since the shape of the inner circumferential surface of the openings 13A and 13B is generally a circle, an ellipse, or a shape that approximates these, the thermally expandable sheet member 3 is preferably rolled up into a sleeve shape, and is preferably shaped like a circle, an ellipse, or a shape that approximates these. Furthermore, when the thermally expandable sheet member 3 is formed into a sleeve shape, the ends are butted together, and in this case, the ends may be bonded together with an adhesive, adhesive, and adhesive tape. Here, the adhesive, adhesive and adhesive tape are preferably made of a non-combustible material, a semi-non-combustible material, or a flame-retardant material, and it is preferable to incorporate a flame retardant into the adhesive, adhesive, etc. The adhesive tape comprises a base material and an adhesive layer provided on one side of the base material, and it is preferable that the base material and the adhesive layer each be made of a non-combustible material, a semi-non-combustible material, or a flame-retardant material. However, when the thermally expandable sheet member 3 is formed into a sleeve shape, the ends are not limited to butting together, and the ends may overlap to form a sleeve shape.

[0052] After inserting the sleeve-shaped heat-expandable sheet member 3 into the opening 13A of the partition penetration 15, the convex member 5 is locked to the outer circumference of the opening 13A on the outer surface 11A of the partition 11, and the sleeve-shaped heat-expandable sheet member 3 is positioned in a predetermined location in the partition penetration 15. After positioning the sleeve-shaped heat-expandable sheet member 3 in the partition penetration 15, a cover member 4 provided at one end 30 of the heat-expandable sheet member 3 extends outward from the opening 13A. The cover member 4 extending from the opening 13A is bent or folded as appropriate to reduce its diameter and surrounds the outer circumference of the insertion body 21 while closely fitting it. Then, a string-shaped fastener 22 is wrapped around the surrounding portion of the cover member 4 and fixed to the insertion body 21 by the string-shaped fastener 22, so that one opening 13A of the partition penetration 15 is covered by the cover member 4.

[0053] According to the configuration of the compartment penetration treatment structure 10 of this embodiment described above, even if the thermally expandable sheet member 3 is heated and expands due to a fire or the like, the thermally expandable sheet member 3 can be maintained in a predetermined position in the compartment penetration 15, and the appropriate fire resistance performance of the compartment penetration treatment structure 10 can be maintained. Specifically, the convex member 5 presses down on the cover member 4 from the outside, so even if the thermally expandable sheet member 3 expands and the cover member 4 is pushed outward, the cover member 4, which is positioned inside the compartment penetration 15, can be prevented from moving to the outside of the compartment penetration 15, and fire resistance performance can be maintained. Furthermore, by providing the convex member 5, the thermally expandable sheet member 3 can be maintained in a predetermined position in the compartment penetration 15, and appropriate fire resistance performance can be given to the compartment penetration treatment structure 10. In addition, by providing the convex member 5, even if a gap is formed between the partition 11 and the cover member 4, the gap can be closed, improving the design and fire resistance.

[0054] Furthermore, in this embodiment, since the fire-resistant structure is formed by the heat-expandable sheet member 3, cover member 4, and convex member 5 without placing filler materials such as fire-resistant putty or rock wool inside the compartment penetration 15, variations due to the worker are eliminated. Furthermore, in this embodiment, at least a portion of the cover member 4 is exposed and visible from the outside. Therefore, it is easy to check visually or by taking photographs whether the partition penetration treatment material has been installed according to the specifications. This also reduces the likelihood of installation errors.

[0055] [Second Embodiment] Next, a second embodiment of the present invention will be described in detail. In the second embodiment, the difference from the first embodiment is that, as shown in Figure 7, the convex member 5 is not provided only on the outer circumference 4A of the cover member 4, but rather a convex member 51 is further provided on the inner circumference 4B of the cover member 4. The differences between the second embodiment and the first embodiment will be described below. Also, parts that are omitted from the description are the same as in the first embodiment. Furthermore, in the following description, members having the same configuration as in the first embodiment will be denoted by the same reference numerals.

[0056] The protruding member 51 is a member provided on the inner circumference 4B of the cover member 4. The protruding member 51 protrudes inward from the inner circumference surface of the cover member 4. The shape of the protruding member 51 is not particularly limited and may be a line shape extending around the inner circumference 4B of the cover member 4, or a block shape scattered around the inner circumference 4B of the cover member 4. The convex member 51 may be a foam or a caulking material, or a composite material made by combining two or more of these. Examples of foams include foamed polyethylene, foamed polypropylene, foamed polystyrene, and foamed polyurethane. The foam may also be made into a flame-retardant foam by containing a flame retardant. Examples of caulking materials include those made by blending a filler and a flame retardant with a synthetic resin material such as a silicone resin, an acrylic resin, or a urethane resin as the main component. Alternatively, a cushioning material other than foam may be used. Among these, foam is preferred for the convex member 51 from the viewpoint of conformability for maintaining the heat-expandable sheet member 3 in place, adhesion to the cover member 4 via the adhesive layer, dimensional stability under normal conditions, heat insulation, design, and waterproofing. The convex member 51 may be made of the same material as the convex member 5 described above, or it may be made of a different material.

[0057] The protruding member 51 is preferably positioned on the inner circumference 4B of the cover member 4, outside the end 30 of the thermally expandable sheet member 3 (on the left side in Figure 7). By positioning the protruding member 51 in this location, even if the thermally expandable sheet member 3 is heated and expands due to a fire or the like, the thermally expandable sheet member 3 can be maintained in the predetermined position of the compartment penetration 15, and the appropriate fire resistance performance of the compartment penetration treatment structure 10 can be maintained. Specifically, the protruding member 51 can suppress the thermally expandable sheet member 3 from protruding from the opening 13A by pressing down on the thermally expandable sheet member 3 that has been heated and expanded due to a fire or the like from the outside, thereby maintaining fire resistance performance.

[0058] [Other embodiments] The present invention is not limited to the configurations of the first and second embodiments described above, and any improvements or modifications may be made as long as they do not depart from the technical concept of the present invention. For example, in the first embodiment, as shown in Figure 6, a partition penetration treatment structure is constructed using a partition penetration treatment material that is an integrated unit comprising a thermally expandable sheet member 3, a cover member 4, and a convex member 5. However, it can also be constructed using a method other than an integrated unit.

[0059] Furthermore, in the second embodiment, as shown in Figure 7, a convex member 5 is provided on the outer circumference 4A of the cover member 4 and a convex member 51 is provided on the inner circumference 4B of the cover member 4. However, it is also possible to provide only the convex member 51 on the inner circumference 4B of the cover member 4.

[0060] Furthermore, in the first and second embodiments described above, it was assumed that partition penetration treatment materials of the same structure are provided at both openings 13A and 13B of the partition portion 11 (i.e., both sides of the partition portion 11). However, partition penetration treatment structures of different structures may be provided at each opening 13A and 13B. For example, the partition penetration treatment structure according to the first embodiment may be provided at one opening 13A, and the partition penetration treatment structure according to the second embodiment may be provided at the other opening 13B. Also, the partition penetration treatment material at opening 13B may be omitted.

[0061] Furthermore, although the partition 11 was described as a hollow wall with a hollow section 13 inside, it is not limited to a hollow wall and may be a wall without a hollow section, for example, made of a single wall material. If the partition 11 is made of a single wall material, there will be only one opening. Furthermore, the partition section 11 is not limited to the walls of a building, but may also be the ceiling or floor of a building. Even in the case of a ceiling or floor, the partition section may have a structure with a hollow space between two partition materials, or it may have a structure without a hollow space and be composed of, for example, a single partition material. If the partition section 11 consists of a single partition material, there will be one opening.

[0062] In each of the above embodiments, from the viewpoint of improving the sound absorption of the partition penetration treatment structure 10, the thermally expandable sheet member 3 and the cover member 4 can be configured to have a sound-absorbing layer (not shown). The sound-absorbing layer can be made of materials such as glass wool, rock wool, soft polyurethane foam, ceramic fiber, cellulose fiber, and needle-punched mat. The thickness of the sound-absorbing layer is not particularly limited, but is, for example, 0.1 to 10 mm, preferably 0.5 to 5 mm. Having a sound-absorbing layer with a thickness below these upper limits makes it easier to install the tape-shaped member 4. Also, having a sound-absorbing layer with a thickness above these lower limits makes it easier to ensure sound absorption performance.

[0063] In each of the above embodiments, from the viewpoint of improving the sound insulation performance of the partition penetration treatment structure 10, the thermally expandable sheet member 3 and the cover member 4 can be configured to have a sound insulation layer (not shown). The sound insulation layer can be made of asphalt sheets, olefin sheets, and iron-based soft sheets. Alternatively, the sound insulation layer can be made of a resin material highly filled with inorganic fillers such as calcium carbonate. Specifically, it is preferable that the resin composition contains 300 to 600 parts by mass of inorganic filler per 100 parts by mass of olefin resin, more preferably 350 to 550 parts by mass, and even more preferably 400 to 500 parts by mass. In this way, a resin material highly filled with inorganic fillers effectively exhibits a sound insulation effect due to its increased mass per unit volume. The thickness of the sound insulation layer is not particularly limited, but is, for example, 0.1 to 10 mm, preferably 0.5 to 5 mm. Having a sound insulation layer with a thickness below these upper limits makes it easier to install the tape-shaped member 4. Also, having a sound insulation layer with a thickness above these lower limits makes it easier to ensure sound insulation performance.

[0064] When a sound-absorbing or sound-insulating layer is provided, it is preferable that the sound-absorbing or sound-insulating layer be adjacent to the substrate, thereby allowing the sound-absorbing or sound-insulating layer to be supported by the substrate. The sound-absorbing or sound-insulating layer may be provided on either the thermally expandable sheet member 3 or the cover member 4, or on both the thermally expandable sheet member 3 and the cover member 4, with two or more layers provided on each. [Explanation of symbols]

[0065] 3. Thermally expandable sheet material 4 Cover component 5,51 Convex member 10 Compartment penetration treatment structure 11 Partition section 12A, 12B Wall materials 13 Hollow part 13A,13B opening 13E Gap 15 Compartment Penetration 21 Insertion body 22, 23 Fastening material 50 void

Claims

1. A partition penetration treatment structure that provides a fire-resistant structure for a partition penetration formed in the partition of a building, through which a long insertable body is inserted. A heat-expandable sheet member is inserted in a sleeve-like manner into the opening of the partition penetration provided in the partition portion, and is positioned along the inner surface of the opening. A cover member is connected to the outer circumference of the thermally expandable sheet member and closes at least a portion of the gap between the opening of the partition penetration and the insertion body, A partition penetration processing structure comprising a protruding member provided on the outer or inner circumferential side of the cover member.

2. The partition penetration processing structure according to claim 1, wherein the convex member is provided near the boundary portion connecting the thermally expandable sheet member and the cover member.

3. The partition penetration treatment structure according to claim 1, wherein the thermally expandable sheet member does not protrude from the opening.

4. The partition penetration processing structure according to claim 1, further comprising a fastening member for fixing the cover member to at least one of the partition portion and the insertion body.

5. The partition penetration treatment structure according to claim 1, wherein a fire-resistant material is disposed in at least one of the gaps formed between the cover member and the partition portion, between the thermally expandable sheet member and the opening, and between the thermally expandable sheet member and the insertion body.

6. The partition penetration treatment structure according to claim 5, wherein the fire-resistant material is a filler.

7. The partition penetration treatment structure according to claim 5, wherein the fire-resistant material is a sheet material.

8. The partition penetration processing structure according to claim 1, wherein there is a gap between the cover member and the insertion body, and between the thermally expandable sheet member and the partition portion.

9. The partition penetration treatment structure according to claim 1, wherein the convex member is a foam.

10. The partition penetration processing structure according to claim 1, wherein the convex member is provided on the outer circumference side of the cover member.

11. The partition penetration processing structure according to claim 10, wherein the convex member is further provided on the inner circumference side of the cover member.

12. The partition penetration treatment structure according to claim 1, wherein a partition penetration treatment material comprising the thermally expandable sheet member, the cover member, and the convex member is provided on both sides of the partition portion.

13. The partition penetration treatment structure according to claim 1, wherein at least one surface of the thermally expandable sheet member is covered with a metal foil composite.

14. The partition penetration treatment structure according to claim 1, wherein the cover member has at least a metal foil composite.

15. A partition penetration treatment material that provides a fire-resistant structure for partition penetrations formed in the partitions of a building, through which a long insertable body is inserted; A heat-expandable sheet member is inserted in a sleeve-like manner into the opening of the partition penetration provided in the partition portion, and is positioned along the inner surface of the opening. A cover member is connected to the outer circumference of the thermally expandable sheet member and closes at least a portion of the gap between the opening of the partition penetration and the insertion body, A partition penetration treatment material comprising a protruding member provided on the outer or inner periphery side of the cover member.

16. A construction method for a partition penetration treatment structure in which a partition penetration formed in the partition of a building and through which a long insertable body is inserted is made of a fire-resistant structure, The steps include inserting at least a portion of a sleeve-shaped thermally expandable sheet member into the opening of the partition penetration provided in the partition portion, and positioning the thermally expandable sheet member along the inner surface of the opening, A step of using a cover member connected to the outer periphery of the thermally expandable sheet member to close at least a portion of the gap between the opening of the partition penetration and the insertion body, A method for constructing a partition penetration structure, comprising the step of inserting the cover member until a protruding member provided on the outer or inner periphery of the cover member contacts the partition portion.

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