WO2017122793A1 - 区画貫通構造 - Google Patents
区画貫通構造 Download PDFInfo
- Publication number
- WO2017122793A1 WO2017122793A1 PCT/JP2017/001059 JP2017001059W WO2017122793A1 WO 2017122793 A1 WO2017122793 A1 WO 2017122793A1 JP 2017001059 W JP2017001059 W JP 2017001059W WO 2017122793 A1 WO2017122793 A1 WO 2017122793A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sleeve
- sleeve body
- wiring
- partition
- clearance
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/061—Non-reusable forms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/04—Sealing to form a firebreak device
Definitions
- the sleeve is usually made of paper, resin, or metal, it is usually necessary to pull out the sleeve after curing. In order to give fire resistance to the partition penetration structure formed in this way, it is necessary to separately install a fire-resistant device after piping or wiring, and the construction is complicated.
- Patent Document 3 a penetration sleeve made of polyvinyl chloride is used, and a foaming material is separately installed between the piping and the penetration sleeve in order to close the space between the piping and the interlayer penetration sleeve in the event of a fire. Construction was complicated.
- An object of the present invention is to provide a partition penetrating structure that is excellent in fire resistance and workability and that can be easily constructed.
- a compartment penetrating structure comprising a sleeve arranged for forming a compartment through hole in concrete, and a pipe or wiring penetrating the sleeve,
- the sleeve includes a hollow sleeve body containing a heat-expandable fireproof resin material, About the clearance between the sleeve body and piping or wiring, expansion ratio and residual hardness of the sleeve body,
- S heat-expandable fireproof resin material
- the sleeve includes a hollow sleeve body containing a heat-expandable refractory resin material, the clearance between the sleeve body and the piping or wiring is 10 mm or more, and the expansion ratio of the sleeve body is 20 And the residual hardness of the sleeve body is 0.2 kgf / cm 2 or more.
- the thermally expandable refractory resin material includes thermally expandable graphite.
- the expansion ratio of the sleeve body is 30 times or more and the residual hardness of the sleeve body is 0.7 kgf / cm 2 or more.
- concrete is cast around the outside of the sleeve.
- the sleeve is installed on a floor base or a wall base.
- the sleeve body contains a refractory resin material
- the expansion ratio is 20 times or more
- the residual hardness of the sleeve body is 0.5 kgf / cm 2 or more
- the clearance between the sleeve and the pipe is small. Even if it is 18 mm or more, the fire resistance of the partition penetration structure is maintained, and the workability by the worker is also excellent.
- the sleeve body itself contains a fire-resistant resin material, fire resistance can be imparted to the partition penetration structure at the same time that the sleeve is installed, and it is not necessary to separately install a fire-resistant device or member. Excellent workability of penetration structure.
- FIG. 3C is a schematic bottom view of the partition penetrating structure as viewed from below with the lid member omitted in FIG. It is a front view which shows the sleeve used with the division penetration structure of 2nd Embodiment of this invention.
- FIG. 1 It is a schematic sectional drawing of the construction method of the division penetration structure of 2nd Embodiment of this invention using the sleeve of FIG.
- FIG. 1 shows a sleeve 10 that is placed before placing concrete for the formation of compartment through holes in the concrete.
- the sleeve 10 is also referred to as a void.
- the sleeve 10 includes a hollow substantially cylindrical sleeve body 12.
- the cross-sectional area of the sleeve body 12 is substantially constant along the longitudinal direction of the sleeve body 12.
- An opening 19 is formed by the inner peripheral surface 14 of the sleeve body 12 and acts as a partition through hole 38 (see FIG. 3B).
- the size of the opening 19 is larger than the outer diameter of the pipe or wiring 8 and is a dimension through which the pipe or wiring 8 can be inserted.
- the material of the sleeve 10 will be described later.
- the lower end 13b of the sleeve body 12 is provided with one or a plurality (four in the figure) of mounting portions 17.
- the attachment portion 17 is integrally formed with the sleeve body 12.
- the attachment portions 17 are shown as four attachment portions that are separated from each other by about 90 ° with respect to the axis A of the sleeve 10, and each attachment portion 17 has a hole 18 for fixing the sleeve 10 to the floor substrate 2.
- the bottomed rectangular mold 4 is for accommodating concrete 5 (see FIG. 3B), and a reinforcing bar R for reinforcing the concrete 5 is accommodated in the mold 4.
- the concrete 5 and the reinforcing bars R constitute the floor foundation 2.
- a fixing member such as a wire such as a wire, a bolt, a screw, or a nail can be passed through the hole 18 in order to fix the sleeve 10 to the formwork 4, the reinforcing bar R, or the concrete 5.
- the sleeve 10 is fixed to the rebar R by passing a metal wire or the like through the hole 18 of the mounting portion 17 and connecting both ends of the metal wire to the rebar R (see FIG. 1).
- grease is attached to the hole 18 so that the fixing member can be easily removed so that the fixing member can be removed from the sleeve 10, or when the operator manually applies force to the mounting portion 17.
- the portion 17 may be broken and removed.
- the sleeve 10 is provided with ribs extending from the sleeve main body 12 on the outer surface of the sleeve main body 12, and the ribs include a plurality of (three in FIG. 1) extending substantially parallel to the axis A of the sleeve 10.
- a rib 12a and a plurality of (three in FIG. 1) ribs 12b extending in a ring (circumferentially) in a direction substantially perpendicular to the axis A of the sleeve 10 are provided.
- the ribs 12a and 12b are integrally formed with the sleeve body 12.
- the ribs 12 a and 12 b serve to reinforce the sleeve 10 so that the sleeve 10 can withstand the force received from the concrete when the concrete is poured around the sleeve 10.
- the lowermost rib 12b is provided at a position slightly higher than the lower end 13b of the sleeve body 12 (for example, 3 mm to 20 mm).
- a space 12c is formed between the portion of the sleeve main body 12 below the lower surface of the lower rib 12b, the lowermost rib 12b (and the mounting portion 17 protruding from the lower end 13b of the sleeve main body 12).
- an annular lid member 30 having a hole 31 therein is attached to the sleeve 10.
- the lid member 30 may be made of metal, or may be a non-fire resistant or fire resistant resin composition molded body.
- the lid member 30 can be formed of a vinyl chloride resin with or without a plasticizer, or a resin composition such as rubber.
- the lid member 30 may be further provided with a finishing layer such as a coating so as to give an aesthetic appearance.
- the lid member 30 is formed of a refractory resin composition containing a resin component such as elastic butyl rubber that is the same as or different from the refractory resin composition constituting the sleeve 10.
- the lid member 30 is a molded body of a resin composition having a composition different from that of the sleeve 10 and can be visually distinguished from the sleeve 10 (for example, red, yellow, orange, blue, green, etc.) And the like). Further, it may be a fluorescent color so that it can be visually distinguished even at night.
- the lid member 30 includes a lid body 32 and leg portions 34 having a diameter smaller than that of the body 32.
- the lid member 30 is attached to one end of the sleeve 10, the inner diameter of the lid member 30 is larger than the outer diameter of the pipe or wiring 8, and the pipe or wiring 8 is accommodated in the hole 31 of the lid member 30.
- the outer diameter of the lid main body 32 is larger than the outer diameter of the sleeve 10 (and the sleeve main body 12), and the outer diameter of the leg portion 34 is smaller than the inner diameter of the sleeve 10 (and the sleeve main body 12).
- the lid body 12 is disposed on the upper end 13a of the sleeve 10 (and the sleeve body 12), and the leg portion 34 is disposed between the sleeve 10 and the pipe or the wiring 8.
- the lid member 30 has a cut 33 that divides the lid member 30 passing through the main body 32 and the small leg portion 34, the lid member 30 is expanded in diameter by gripping both ends of the lid member 30 at the position of the cut 33.
- the lid member 30 can be disposed between the sleeve 10 and the pipe or wiring 8 even after the pipe or wiring 8 is installed through the partition through hole 38 by being wound around the pipe or wiring 8.
- the cut 33 is bent and the contact surfaces of the cut 33 facing each other are curved, the engaging force when the cuts 33 are combined is strengthened, and the lid member 30 is attached to the sleeve 10.
- the lid member 30 can be prevented from being detached from the sleeve 10 by an external force.
- the sleeve 10 is formed from a heat-expandable fire-resistant resin material.
- the refractory resin material is a resin composition containing a thermally expandable layered inorganic substance and an inorganic filler in a resin component.
- the sleeve 10 kneads each component of the resin composition using a known apparatus such as a single-screw extruder, a twin-screw extruder, a Banbury mixer, a kneader mixer, a kneading roll, a reiki machine, a planetary stirrer, and the like. It can be obtained by molding by a method.
- the sleeve main body 12, the ribs 12a and 12b, and the mounting portion 17 of the sleeve 10 are integrally formed from the same thermally expandable fire-resistant resin material.
- resin component known resin components can be widely used, and examples thereof include synthetic resins such as thermoplastic resins and thermosetting resins, rubber substances, and combinations thereof.
- thermoplastic resin examples include polypropylene resins, polyethylene resins, poly (1-) butene resins, polypentene resins and other polyolefin resins, polystyrene resins, acrylonitrile-butadiene-styrene (ABS) resins, polycarbonate resins, polyphenylene ether resins, ( Examples thereof include synthetic resins such as (meth) acrylic resin, polyamide resin, polyvinyl chloride resin, novolac resin, polyurethane resin, and polyisobutylene.
- synthetic resins such as (meth) acrylic resin, polyamide resin, polyvinyl chloride resin, novolac resin, polyurethane resin, and polyisobutylene.
- thermosetting resin examples include polyurethane, polyisocyanate, polyisocyanurate, phenol resin, epoxy resin, urea resin, melamine resin, unsaturated polyester resin, polyimide, and other synthetic resins.
- Rubber materials include natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene-propylene rubber, chlorosulfonated polyethylene, acrylic rubber And rubber materials such as epichlorohydrin rubber, polyvulcanized rubber, non-vulcanized rubber, silicon rubber, fluororubber, and urethane rubber.
- the resin component having such properties can be highly filled with an inorganic filler, and the resulting resin composition is flexible and easy to handle.
- a non-vulcanized rubber such as butyl and a polyethylene resin are preferably used.
- an epoxy resin is preferable from the viewpoint of improving the fire resistance by increasing the flame retardancy of the resin itself.
- the heat-expandable layered inorganic substance expands when heated.
- a heat-expandable layered inorganic material is not particularly limited, and examples thereof include vermiculite, kaolin, mica, and heat-expandable graphite.
- Thermally expandable graphite is a conventionally known substance, and powders such as natural scaly graphite, pyrolytic graphite, and quiche graphite are mixed with inorganic acids such as concentrated sulfuric acid, nitric acid, and selenic acid, concentrated nitric acid, perchloric acid,
- a graphite intercalation compound was produced by treatment with a strong oxidant such as chlorate, permanganate, dichromate, dichromate, hydrogen peroxide, etc., and the layered structure of carbon was maintained. It is a kind of crystalline compound as it is.
- the thermally expandable graphite obtained by acid treatment as described above may be further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like.
- the particle size of the thermally expandable graphite is preferably 20 to 200 mesh. If the particle size is larger than 200 mesh, the degree of expansion of graphite is sufficient to obtain an expanded heat insulating layer, and if the particle size is smaller than 20 mesh, the dispersibility when blended into the resin is good and the physical properties are good. is there. Examples of commercially available products of thermally expandable graphite include “GREP-EG” manufactured by Tosoh Corporation, “GRAFGUARD” manufactured by GRAFTECH, and the like.
- the inorganic filler increases the heat capacity and suppresses heat transfer, and works as an aggregate to improve the strength of the expanded heat insulating layer.
- the inorganic filler is not particularly limited, and examples thereof include metal oxides such as alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, and ferrite; calcium hydroxide, magnesium hydroxide, Water-containing inorganic substances such as aluminum hydroxide and hydrotalcite; metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, barium carbonate and the like.
- inorganic fillers include calcium salts such as calcium sulfate, gypsum fiber and calcium silicate; silica, diatomaceous earth, dosonite, barium sulfate, talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite.
- the particle size of the inorganic filler is preferably 0.5 to 100 ⁇ m, more preferably 1 to 50 ⁇ m.
- the inorganic filler has a small particle size because the dispersibility greatly affects the performance when the addition amount is small, but the dispersibility is good when it is 0.5 ⁇ m or more.
- the addition amount is large, the viscosity of the resin composition increases and moldability decreases as the high filling progresses, but the viscosity of the resin composition can be decreased by increasing the particle size.
- the particle size of 100 micrometers or less is desirable at the point of the surface property of a molded object, and the mechanical physical property of a resin composition.
- aluminum hydroxide examples include “Hijilite H-31” (manufactured by Showa Denko) having a particle size of 18 ⁇ m, “B325” (manufactured by ALCOA) having a particle size of 25 ⁇ m, and calcium carbonate.
- Examples thereof include “Whiteon SB Red” having a particle diameter of 1.8 ⁇ m (manufactured by Bihoku Flour Industries), “BF300” having a particle diameter of 8 ⁇ m (manufactured by Bihoku Flour Industries).
- the resin composition constituting the thermally expandable refractory material may further contain a phosphorus compound in addition to the above-described components in order to increase the strength of the expanded heat insulating layer and improve the fireproof performance.
- the phosphorus compound is not particularly limited.
- red phosphorus various phosphate esters such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, xylenyl diphenyl phosphate; sodium phosphate
- metal phosphates such as potassium phosphate and magnesium phosphate
- ammonium polyphosphate compounds represented by the following chemical formula (1).
- red phosphorus, ammonium polyphosphate, and a compound represented by the following chemical formula (1) are preferable from the viewpoint of fireproof performance, and ammonium polyphosphate is more preferable in terms of performance, safety, cost, and the like.
- R 1 and R 3 represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms.
- R 2 is a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or carbon Represents an aryloxy group of formula 6-16.
- red phosphorus commercially available red phosphorus can be used, but from the viewpoint of safety such as moisture resistance and spontaneous ignition during kneading, a material in which the surface of red phosphorus particles is coated with a resin is preferably used.
- the ammonium polyphosphate is not particularly limited, and examples thereof include ammonium polyphosphate and melamine-modified ammonium polyphosphate. Ammonium polyphosphate is preferably used from the viewpoint of handleability and the like. Examples of commercially available products include “AP422” and “AP462” manufactured by Clariant, “FR CROS 484” and “FR CROS 487” manufactured by Budenheim Iberica.
- the compound represented by the chemical formula (1) is not particularly limited, and examples thereof include methylphosphonic acid, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonic acid, n-propylphosphonic acid, n-butylphosphonic acid, 2-methylpropylphosphonic acid.
- t-butylphosphonic acid 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, dioctylphosphine Acid, phenylphosphinic acid, diethylphenylphosphinic acid, diphenylphosphinic acid, bis (4-methoxyphenyl) phosphinic acid and the like.
- t-butylphosphonic acid is preferable in terms of high flame retardancy although it is expensive.
- the said phosphorus compound can also be used independently and can also use 2 or more types together.
- the resin composition contains 10 to 350 parts by weight of the thermally expandable layered inorganic substance and 30 to 400 parts by weight of the inorganic filler with respect to 100 parts by weight of the resin component such as the thermoplastic resin and epoxy resin. Those are preferred.
- the total of the thermally expandable layered inorganic material and the inorganic filler is preferably in the range of 50 to 600 parts by weight with respect to 100 parts by weight of the resin component.
- Such a resin composition expands by heating to form a fireproof heat insulating layer.
- the thermally expandable refractory material expands by heating such as a fire, and can obtain a necessary volume expansion coefficient. After expansion, a residue having a predetermined heat insulation performance and a predetermined strength is formed. It is also possible to achieve stable fireproof performance.
- the refractory resin material is a material that is insulated by the expansion layer when exposed to a high temperature such as in a fire and has strength of the expansion layer.
- the total amount of the thermally expandable layered inorganic material and the inorganic filler in the resin composition is 50 parts by weight or more, a sufficient amount of fire resistance is obtained by satisfying the amount of residue after combustion, and if it is 600 parts by weight or less Physical properties are maintained.
- the heat-expandable resin composition used in the present invention may further contain a plasticizer.
- plasticizer is a plasticizer generally used when manufacturing a polyvinyl chloride resin molded object, it will not specifically limit.
- phthalate plasticizers such as di-2-ethylhexyl phthalate (DOP), dibutyl phthalate (DBP), diheptyl phthalate (DHP), diisodecyl phthalate (DIDP), Fatty acid ester plasticizers such as di-2-ethylhexyl adipate (DOA), diisobutyl adipate (DIBA), dibutyl adipate (DBA), Epoxidized ester plasticizers such as epoxidized soybean oil, Polyester plasticizers such as adipic acid ester and adipic acid polyester, Trimellitic acid ester plasticizers such as tri-2-ethylhexyl trimellitate (TOTM), triisononyl trimellitate (TINTM), Phosphate ester plasticizers such as trimethyl
- the plasticizer can be used alone or in combination of two or more.
- the addition amount of the plasticizer is not limited, but the addition amount of the plasticizer is preferably in the range of 20 to 200 parts by weight with respect to 100 parts by weight of the resin component.
- the resin composition used in the present invention is a phenolic, amine-based, sulfur-based or other antioxidant, metal harm-preventing agent, or antistatic agent, as long as the object of the present invention is not impaired. , Stabilizers, crosslinking agents, lubricants, softeners, pigments, tackifier resins, additives such as molding aids, and tackifiers such as polybutene and petroleum resins.
- the sleeve 10 is fixed to the floor base 2.
- the sleeve 10 is fixed to the floor base 2 by, for example, screwing the bolt 36 into the floor base 2 through the hole 18 of the mounting portion 17 of the lower end 10b of the sleeve 10.
- a hole for inserting a pipe or wiring 8 is made.
- the concrete 5 is poured into the floor base 2.
- the thickness or height H of the concrete 5 is equal to the distance from the lower end 13 b of the sleeve body 12 to the upper end 13 a of the sleeve body 12.
- the concrete 5 is placed around the outside of the sleeve 10 while leaving the opening 19 inside the sleeve 10, and the partition penetration structure 100 is completed.
- the opening 19 inside the sleeve 10 functions as a partition through hole 38.
- the lowest rib 12b provided on the sleeve body 12 is provided at a position slightly higher than the lower end 13b of the sleeve body 12, when the concrete 5 is placed around the sleeve 10, the lowest rib 12b is provided.
- a space 12c (FIG. 2) formed by a portion of the sleeve main body 12 below the lower surface of the lower rib 12b, the lowermost rib 12b, and the mounting portion 17 protruding from the lower end 13b of the sleeve main body 12.
- the concrete 5 enters (see) and the sleeve 10 is fixed more firmly in the concrete 5.
- the pipe includes various pipes such as a water pipe, a refrigerant pipe, a heat medium pipe, a gas pipe, and an intake / exhaust pipe.
- the wiring includes various wirings such as various cables such as a power cable and a communication cable.
- the lid member 30 is attached to the upper end 13a of the sleeve body so as to surround the plurality of pipes or wires 8 and to block the partition through holes 38.
- the sleeve 10 when a fire occurs from the direction of the arrow downstairs of the partition penetrating structure 100, the sleeve 10 expands due to the heat of the fire as shown in FIG. The gap between the wires 8 is filled and the course of fire is blocked. In this way, the sleeve 10 not only facilitates the placement of the concrete 5 but also exhibits fire resistance and imparts fire resistance to the partition penetration structure 100. Thus, it is not necessary to pull out the sleeve 10 after curing the concrete, and it can be confirmed that the refractory material is installed simultaneously with the installation of the sleeve 10.
- the partition penetrating structure 100 is further provided with fire resistance.
- the cover member 30 covers the top of the sleeve 10 and the sleeve 10 and the pipe or wiring 8 around the pipe or wiring 8 when viewed from above. Since the gap between them is closed, it plays the role of blindfold, the inside of the partition through hole 38 is not visible, and the aesthetic appearance is maintained visually. Further, if the gap between the sleeve 10 and the pipe or wiring 8 is closed by the lid member 30, it is possible to reduce the sound from under the floor.
- FIG. 4 is a schematic bottom view of the partition penetrating structure as viewed from below in FIG. 3C with the lid member 30 omitted.
- a clearance C which is a gap between the sleeve 10 (and the sleeve main body 12) and the pipe or wiring 8, is 10 mm or more.
- the clearance between the sleeve body and the pipe or the wiring is 10 mm or more” means that there is a place where the clearance is 10 mm or more in at least one place in the circumferential direction of the pipe or the wiring 8. There may be another location where the clearance C between the sleeve body and the pipe or wiring is less than 10 mm.
- the clearance C between the sleeve body 12 and the pipe or wire 8 is 10 mm or more in the entire circumference of the pipe or wire 8 in the sleeve body 12.
- the upper limit of the clearance C is not specifically limited, For example, it is 90 mm or less.
- the clearance C between the sleeve main body 12 and the pipe or wiring 8 is 10 mm or more and 90 mm or less in at least one place in the circumferential direction of the pipe or wiring 8.
- the clearance C between the sleeve body 12 and the pipe or wiring 8 is opposite 2 with respect to the center of the pipe or wiring 8 (ie, at an angle of about 180 ° with respect to the center of the pipe or wiring 8). It is 10 mm or more and 90 mm or less in the place.
- the thickness T of the sleeve body 12 is not particularly limited, and is, for example, 0.5 mm to 50 mm.
- the ratio of sleeve thickness T to clearance C is 5: 1 to 1: 180 in order to more effectively block the partition through-hole and maintain the residual hardness. Is preferred.
- S is in the range of 0 to 500, that is, 0 or more and 500 or less.
- S is greater than 0 and less than or equal to 500. In another embodiment, S is 25 or more and 500 or less. In another embodiment, S is 0 or more and 400 or less. In another embodiment, S is greater than 0 and 400 or less. In another embodiment, S is 25 or more and 400 or less.
- the partition penetrating structure satisfies the above range of S, the expansion ratio of the sleeve body 12 is 20 times or more, and the residual hardness of the sleeve body 12 is 0.2 kgf / cm 2 or more.
- the partition penetrating structure satisfies the above S range, and the expansion ratio of the sleeve body 12 is 20 times or more and 60 times or less. In another embodiment, the partition penetrating structure satisfies the above range of S, and the residual hardness of the sleeve body 12 is 0.5 kgf / cm 2 or more and 2 or less. In another embodiment, the partition penetrating structure satisfies the above range of S, the expansion ratio of the sleeve body 12 is 20 times or more and 60 times or less, and the residual hardness is 0.5 kgf / cm 2 or more and 2 or less. It is.
- the partition penetrating structure satisfies the above range S, the expansion ratio of the sleeve body 12 is 30 times or more, and the residual hardness of the sleeve body 12 is 0.7 kgf / cm 2 or more.
- the upper limit is not particularly limited.
- the expansion ratio is 60 times or less and the residual hardness is 2 or less.
- the expansion ratio of the sleeve body 12 is 20 times or more, even when the clearance between the sleeve body and the pipe or wiring is 10 mm or more, the sleeve body 12 is connected to the sleeve 10 and the pipe or wiring 8 when heated by a fire. It is possible to expand to a degree sufficient to close the space between the two, and it is possible to prevent the penetration of the flame in the partition penetration structure.
- the residual hardness is 0.2 kgf / cm 2 or more, the strength of the expansion layer of the sleeve body 12 expanded by heating is maintained, and the effect of preventing the penetration of the flame in the compartment penetration structure is maintained.
- the expansion ratio when the expansion ratio is large, the residue hardness decreases, and when the expansion ratio is small, the residue hardness increases.
- the expansion ratio and the residue hardness within the scope of the present invention are not limited to the thermally expandable refractory resin. Those skilled in the art will understand that each component of the material and its formulation can be set as appropriate.
- the term “expansion ratio” refers to a test piece prepared by cutting a thermally expansible refractory resin material constituting the sleeve body 12 into a length of 100 mm, a width of 100 mm, and a thickness of 2.0 mm. After supplying the test piece to an electric furnace and heating at 600 ° C. for 30 minutes, the thickness of the test piece is measured, and (thickness of the test piece after heating) / (thickness of the test piece before heating) Refers to the calculated value.
- residual hardness means that the test piece after measuring the expansion ratio is supplied to a compression tester (“Finger Filling Tester” manufactured by Kato Tech Co., Ltd.), and an indenter of 0.25 cm 2 is used. It refers to the stress at break measured by compressing at a rate of 0.1 cm / sec.
- the expansion ratio and the residual hardness are measured by setting the heat-expandable refractory resin material constituting the sleeve body 12 to a predetermined size, and expanding and heating it in a free state, that is, without receiving interference from other members.
- the expansion ratio and the residual hardness and behavior of the section penetrating structure in which wiring or piping or concrete is under pressure are the same, the expansion ratio and residual hardness measured by the above method are the same.
- the fire resistance performance in the penetration structure can be appropriately evaluated.
- the sleeve 1 has a sleeve body 12 made of a thermally expandable fireproof resin material as the first sleeve.
- This is a sleeve assembly including a sleeve 10 and a second sleeve 20 that is non-thermally expandable.
- the sleeve 10 is referred to as a first sleeve 10.
- the same material as in the first embodiment described above, that is, a resin composition containing a resin component and a heat-expandable layered inorganic material is used. Can do.
- the second sleeve 20 is made of a non-thermally expandable resin component, and the resin component constituting the second sleeve 20 can use the same or different resin as the resin component constituting the sleeve body 12.
- the difference between the first sleeve 10 and the second sleeve 20 is that the second sleeve 20 is substantially non-thermally expandable because it does not substantially contain the thermally expandable layered inorganic substance.
- the second sleeve 20 of the second embodiment includes a hollow substantially cylindrical sleeve body 22, a hollow substantially cylindrical diameter-enlarged portion 26 that is continuous with the sleeve body 22 via a stepped portion 25, and It has.
- the sleeve main body 22, the stepped portion 25, and the enlarged diameter portion 26 are integrally formed continuously from the same non-thermally expandable material, and the second sleeve 20 is continuously formed from the upper end 20a to the lower end 20b. Yes.
- the sleeve 10 of the second embodiment includes an annular member 19a and an annular protrusion 19b mounted around the sleeve body 12 instead of the ribs 12a and 12b of the first embodiment.
- the annular member 19 a protrudes from one end (the lower end 13 a in the figure) of the side surface of the sleeve body 12, and the annular protrusion 19 b is provided at a position spaced from the end of the sleeve body 12 and protrudes from the side surface of the sleeve body 12.
- the sleeve body 12 of the first sleeve 10 By forming the sleeve body 12 of the first sleeve 10 from a heat-expandable refractory resin material, the adhesion between the first sleeve 10 and the concrete is improved, and the adhesion between the combustion residue of the first sleeve 10 and the concrete is improved. In addition, the heat insulating layer is difficult to collapse. In addition, when the allowance of the heat-expandable refractory resin material is large, the sleeve assembly is easily deformed by an external impact. However, by forming the second sleeve 20 from a non-thermally-expandable material such as a metal, the external impact The strength against can be increased.
- the amount of use of the heat-expandable fireproof resin material can be minimized, and the through sleeve 1 can be provided at an appropriate price.
- the sleeve 1 is configured by combining the first sleeve 10 having the thermally expandable sleeve body 12 and the non-thermally expandable second sleeve 20, so that the sleeve 1 imparts fire resistance to the partition through structure. Furthermore, it has both strength against external impact and adhesion to concrete. Further, the sleeve 1 can be provided at an appropriate price.
- the inner diameter of the sleeve body 22 of the second sleeve 20 is equal to or smaller than the inner diameter of the sleeve body 12 of the first sleeve 10.
- the upward expansion of the first sleeve 10 is restricted by coming into contact with 25a.
- the portion of the first sleeve 10 exposed from the second sleeve 20 is perpendicular to the axial direction of the first sleeve 10, particularly perpendicular to the axial direction and inward of the first sleeve 10. Expansion is accelerated
- the second sleeve 20 of the first sleeve 10 when the first sleeve 10 is fitted to the second sleeve 20, the second sleeve 20 of the first sleeve 10 is in a position where the lower end 20 b of the second sleeve 20 is in contact with the annular protrusion 19 b of the first sleeve 10. Insertion into is stopped.
- the outer diameter of the sleeve body 22 of the first sleeve 10 is larger than the inner diameter of the sleeve body 22 of the second sleeve 20.
- the upper end 10a of the first sleeve 10 abuts on the step portion 25 of the second sleeve 20, so that the movement of the first sleeve 10 into the second sleeve 20 (upward movement in FIG. 5) is performed.
- the step 25 is more reliably regulated.
- the upper end 10 a of the first sleeve 10 expands and abuts against the step portion 25, thereby causing the first sleeve 10 to expand.
- the upward expansion of 10 is restricted.
- the portion of the first sleeve 10 exposed from the second sleeve 20 is perpendicular to the axial direction of the first sleeve 10, particularly perpendicular to the axial direction and inward of the first sleeve 10. Expansion is accelerated
- the inner peripheral surface 29 of the enlarged diameter portion 26 of the second sleeve 20 and the outer peripheral surface 15 of the sleeve body 12 of the first sleeve 10 are in contact with each other.
- the first sleeve 10 and the second sleeve 20 are fixed to each other.
- annular protrusion 19b is formed on at least one of the inner peripheral surface 29 of the enlarged diameter portion 26 of the second sleeve 20 or the outer peripheral surface 15 of the sleeve main body 12 of the first sleeve 10.
- the inner peripheral surface of the sleeve 1, that is, the inner peripheral surface 14 of the sleeve main body 12 of the first sleeve 10 and the inner peripheral surface 25 of the second sleeve 20 form an opening 37, and a partition through hole 38 (see FIG. 6B). ).
- the size of the opening 37 is larger than the outer diameter of the pipe or wiring 8 and is a dimension through which the pipe or wiring 8 can be inserted.
- the upper end 20a of the second sleeve 20 covers the periphery of the plurality of pipes or wires 8 and closes the partition through hole 38.
- the lid member 30 may be optionally attached.
- the lid member 30 is provided with a hole 31 through which the pipe or the wiring 8 is inserted.
- the lid member 30 serves as a fixed frame that fills the clearance between the second sleeve 20 and the pipe or wiring 8.
- the sleeve 1, the piping or wiring 8 arranged in the sleeve 1, and the lid member 30 attached to the second sleeve 20 constitute a fireproof filling structure.
- the lid member 30 fills 10 to 100% of the clearance area when the lid member 30 is mounted on the second sleeve 20 with a pipe or wire 8 passing through the hole 31 of the lid member 30.
- the sleeve 1 is fixed to the floor base 2.
- the sleeve 1 is fixed to the floor base 2 by, for example, screwing a bolt 36 into the floor base 2 through the hole 17 of the mounting portion 17 at the lower end 10b of the first sleeve 10.
- a hole for inserting a pipe or wiring 8 is made.
- the concrete 5 is poured into the floor base 2.
- the thickness that is, the height H of the concrete 5 is equal to the distance from the upper end 20 a of the second sleeve 20 to the lower end 10 b of the first sleeve 10.
- the concrete 5 is placed around the outside of the sleeve 1 while leaving the opening 37 inside the sleeve 1, and the partition penetration structure 100 is completed.
- the opening 37 of the sleeve 10 acts as a partition through hole 38.
- a lid member 30 may be attached to the upper end 20a of the second sleeve 20 so as to cover the periphery of the plurality of pipes or wires 8 and to block the partition through holes 38.
- the lid member 30 preferably closes more gaps in the partition through hole 38. Since the lid member 30 is in contact with the outer peripheral surface of the pipe or wiring 8 and closes the gap between the sleeve 10 and the pipe or wiring 8, fire resistance is further imparted to the partition through structure 100.
- the cover member 30 covers the top of the sleeve 1 so that it is between the sleeve 1 and the pipe or wiring 8 around the pipe or wiring 8. As shown in FIG. Since the gap is closed, it plays the role of blindfold, the inside of the partition through hole 38 is not visible, and the aesthetic appearance is maintained visually.
- FIG. 6C when a fire occurs from the direction of the arrow downstairs of the partition penetrating structure 100, as shown in FIG. 6D, the first sleeve 10 expands due to the heat of the fire, and the concrete The gap between 5 and the pipe or wiring 8 is filled, and the course of fire is blocked.
- the sleeve 1 not only facilitates the placement of the concrete 5 but also exhibits fire resistance and imparts fire resistance to the partition penetration structure 100.
- the refractory material is installed simultaneously with the installation of the sleeve 1.
- S is in the range of 0 to 500, that is, 0 or more and 500 or less. .
- the sleeve used in the partition through structure of the present invention is not limited to the configuration of the sleeve 10 of the first embodiment shown in FIGS. 1 to 4 and the second embodiment shown in FIGS. Various modifications including these are possible, and such modifications are also included in the scope of the present invention.
- the mounting portion 17 for fixing the sleeve 10 to the floor base 2 may be omitted, or may have a structure different from the illustrated mounting portion 17.
- the ribs 12a and 12b of the first embodiment may be omitted.
- annular member 19a and the annular protrusion 19b of the second embodiment may be omitted.
- the second sleeve 20 may include a hollow substantially cylindrical sleeve main body 22 and a hollow substantially cylindrical reduced diameter portion 26 a that is continuous with the sleeve main body 22 via the stepped portion 25. In this configuration, the reduced diameter portion 26 a of the second sleeve 20 is inserted into the first sleeve 10.
- the second sleeve 20 includes the sleeve main body 22 and the hollow main cylindrical diameter-enlarged portion 26 continuous through the sleeve main body 22 and the stepped portion 25.
- the sleeve main body 22 of the second sleeve 20 may not include the enlarged diameter portion 26 or the reduced diameter portion 26a, and the length may be constant from end to end.
- the sleeve main body 22 of the second sleeve 20 has a constant diameter over the entire length, and the first sleeve 10 is inserted into the second sleeve 20.
- Examples 1-2 and Comparative Examples 1-2 “ADT351” manufactured by ADT was used as the thermally expandable graphite, and the clearance was 36 mm.
- Example 1 “GREP-EG” (thermal expansion start temperature 220 ° C.) manufactured by Tosoh Corporation was used as the thermally expandable graphite. The case is designated as Example 2, the same composition as in Example 2 and the clearance is 100 mm as Comparative Example 1, and the case where “MZ260” manufactured by Japan Air Water Co. is used as the thermally expandable graphite is designated as Comparative Example 2.
- Table 1 shows the aspect ratio of the conductive graphite and the composition of each compound.
- the shape retainability of the residue is measured by holding both ends of the test piece whose expansion ratio has been measured by hand and visually measuring the ease with which the residue can be collapsed. Was evaluated as PASS, and when the specimen collapsed and could not be lifted, it was evaluated as FAIL. (Fire resistance test)
- a molded sleeve (inner diameter 150 mm, height 160 mm, thickness 5 mm) composed of the heat-expandable fire-resistant resin material of Example 1, Example 2, Comparative Example 1, and Comparative Example 2 shown in Table 1 is used as a floor base. Installed and cast concrete around the sleeve.
- One pipe (PVC pipe) was piped in the sleeve, arranged so that the clearance between the sleeve body and the pipe was 10 mm or more, and heated in a horizontal furnace for 2 hours along the heating curve of ISO834.
- the temperature of the through pipe on the floor was less than the initial temperature + 180 ° C. and there was no flame through, it was evaluated as PASS, and when the initial temperature + 180 ° C. or more or the pipe on the floor penetrated through the flame was evaluated as FAIL.
- Table 1 shows the measurement results of the expansion ratio, residue hardness, residue shape retention, and fire resistance test of Examples 1-2 and Comparative Examples 1-2.
- the thermal expansion material expanded sufficiently and the expansion residue was firmly held and the fire resistance test was PASS.
- the residue was not firmly held and was FAIL.
- the heat insulation structure was not formed by the expansion residue, the temperature of the pipe on the floor rose, the pipe was perforated, and the flame started.
- Examples 3 to 6 A formulation containing ingredients of the formulation shown in Table 2 was fed to an injection molding machine as described above with respect to Examples 1-2 and Comparative Examples 1-2, and was cylindrical at 170-190 ° C. A molding sleeve, which is a thermal expansion molded body, was molded.
- Example 3 polyvinyl chloride resin (degree of polymerization: 1000, referred to as “PVC”), and in Example 4, ethylene-vinyl acetate copolymer resin (Evaflex EV360, “EVA” manufactured by Mitsui DuPont Polychemicals)
- Evaflex EV360, “EVA” manufactured by Mitsui DuPont Polychemicals ethylene-propylene-diene rubber (Mitsui Chemicals Co., Ltd., Mitsui EPT3092M, referred to as “EPDM”)
- Example 6 bisphenol F type epoxy monomer (“E807” manufactured by Yuka Shell) and diamine-based curing
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Abstract
Description
本願は、2016年1月13日に出願した特願2016-004742号明細書の優先権の利益を主張するものであり、当該明細書はその全体が参照により本明細書中に援用される。
(技術分野)
本発明は区画貫通構造に関する。
前記スリーブは熱膨張性の耐火性樹脂材料を含有する中空のスリーブ本体を備え、
スリーブ本体と配管または配線との間のクリアランスと
スリーブ本体の膨張倍率および残渣硬さとについて、
下記一般式Sを定義した際に、Sが0~500の範囲である区画貫通構造が提供される。
(残渣硬さの単位はkgf/cm2、クリアランスの単位はmmである)
一実施形態において、上記スリーブは熱膨張性の耐火性樹脂材料を含有する中空のスリーブ本体を備え、スリーブ本体と配管または配線との間のクリアランスが10mm以上であり、スリーブ本体の膨張倍率が20倍以上かつスリーブ本体の残渣硬さが0.2kgf/cm2以上である。
ジ-2-エチルヘキシルアジペート(DOA)、ジイソブチルアジペート(DIBA)、ジブチルアジペート(DBA)等の脂肪酸エステル可塑剤、
エポキシ化大豆油等のエポキシ化エステル可塑剤、
アジピン酸エステル、アジピン酸ポリエステル等のポリエステル可塑剤、
トリー2-エチルヘキシルトリメリテート(TOTM)、トリイソノニルトリメリテート(TINTM)等のトリメリット酸エステル可塑剤、
トリメチルホスフェート(TMP)、トリエチルホスフェート(TEP)、リン酸と陸レジル(TCP)等の燐酸エステル可塑剤、
鉱油等のプロセスオイルなどが挙げられる。なお、可塑剤には上記のリン化合物は含まれない。
ここで、残渣硬さの単位はkgf/cm2、クリアランスの単位はmmである。
ここで、残渣硬さの単位はkgf/cm2、クリアランスの単位はmmである。このようなSの範囲を満たすことで、スリーブ本体12の残渣の形状保持性と、区画貫通構造の耐火性とを両立させることができる。
熱膨張性黒鉛としてADT社製「ADT351」を用い、クリアランスが36mmの場合を実施例1、熱膨張性黒鉛として東ソ一社製「GREP-EG」(熱膨張開始温度220℃)を用いた場合を実施例2とし、実施例2と同じ組成でクリアランスが100mmの場合を比較例1、熱膨張性黒鉛として日本エアウォーター社製「MZ260」を使用した場合を比較例2とし、各熱膨張性黒鉛のアスペクト比と、各配合物の組成とを表1に示した。実施例1,2および比較例1,2のいずれとも、170~190℃で表面が美麗な長尺異型成形体を射出成形でき、成形した後のスクリューおよび金型への配合物の付着もなく、成形性は良好であった。
(アスペクト比)
SEM 断面写真を用いて熱膨張性黒鉛の写真のスケール長さを測定し、換算してアスペクト比を算出した。
(膨張倍率)
得られた実施例1,2および比較例1,2の熱膨張性の耐火性樹脂材料の成形体から作製した試験片(長さ100mm、幅100mm、厚さ2.0mm)を電気炉に供給し、600℃で30分間加熱した後、試験片の厚さを測定し、(加熱後の試験片の厚さ)/(加熱前の試験片の厚さ)を膨張倍率として算出した。
膨張倍率を測定した加熱後の試験片を圧縮試験機(カトーテック社製、「フィンガーフイリングテスター」)に供給し、0.25cm2の圧子で0.1cm/秒の速度で圧縮し、破断点応力を測定した。
(残渣の形状保持性)
上記残渣硬さは膨張後の残渣の硬さの指標になるが、測定が残渣の表面部分に限られるため、残渣全体の硬さの指標にならないことがあるので、残渣全体の硬さの指標として形状保持性を測定した。残渣の形状保持性は、膨張倍率を測定した試験片の両端部を手で持って持ち上げて、その際の残渣の崩れやすさを目視して測定した、試験片が崩れることなく持ち上げられた場合をPASSと評価し、試験片が崩壊して持ち上げられない場合をFAILと評価した。
(耐火試験)
表1に示した実施例1,実施例2,比較例1,比較例2の熱膨張性の耐火性樹脂材料から構成された成型スリーブ(内径150mm、高さ160mm、厚み5mm)を床下地に設置し、コンクリートをスリーブの周囲に打設した。スリーブ内に1本パイプ(PVC管)を配管し、スリーブ本体と配管との間のクリアランスが10mm以上となるように配置し、ISO834の加熱曲線に沿って水平炉内で2時間加熱した。床上の貫通パイプ温度が、初期温度+180℃未満且つ貫通して炎出がない場合をPASSと評価し、初期温度+180℃以上または床上パイプが貫通して炎出する場合をFAILと評価した。
表2に示した配合の成分を含有する配合物を、実施例1~2および比較例1~2に関して上記に記載したのと同様に射出成型機に供給し、170~190℃で筒状の熱膨張成形体である成型スリーブを成形した。
Claims (6)
- コンクリートにおける区画貫通孔の形成用に配置されたスリーブと、該スリーブを貫通する配管または配線とを備えた区画貫通構造であって、
前記スリーブは熱膨張性の耐火性樹脂材料を含有する中空のスリーブ本体を備え、
スリーブ本体と配管または配線との間のクリアランスと
スリーブ本体の膨張倍率および残渣硬さとについて、
下記一般式Sを定義した際に、Sが0~500の範囲である区画貫通構造。
S=1/[{(膨張倍率)×(残渣硬さ)}/(クリアランス)2]
(残渣硬さの単位はkgf/cm2、クリアランスの単位はmmである) - 前記スリーブは熱膨張性の耐火性樹脂材料を含有する中空のスリーブ本体を備え、
スリーブ本体と配管または配線との間のクリアランスが10mm以上であり、
スリーブ本体の膨張倍率が20倍以上かつスリーブ本体の残渣硬さが0.2kgf/cm2以上である請求項1に記載の区画貫通構造。 - 前記熱膨張性の耐火性樹脂材料は熱膨張性黒鉛を含む請求項1または2に記載の区画貫通構造。
- スリーブ本体の膨張倍率が30倍以上かつスリーブ本体の残渣硬さが0.7kgf/cm2以上である請求項1~3のいずれか一項に記載の区画貫通構造。
- 前記スリーブの外側周囲にコンクリートが打設されている請求項1~4のいずれか一項に記載の区画貫通構造。
- 前記スリーブが床下地または壁下地に設置されている請求項1~5のいずれか一項に記載の区画貫通構造。
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WO2017217472A1 (ja) * | 2016-06-17 | 2017-12-21 | 積水化学工業株式会社 | 建築物に区画貫通孔を形成するためのスリーブ |
US11479982B2 (en) * | 2019-10-04 | 2022-10-25 | Forrester Manufacturing Co., Inc. | Isolation pocket form and method for making crack resistant concrete slabs |
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RS64470B1 (sr) * | 2020-05-20 | 2023-09-29 | Smartfireblock Doo Beograd Cukarica | Postupak dobijanja fleksibilnog ekspandirajućeg materijala (fem) otpornog na gorenje korišćenjem bioplastifikatora |
KR102321348B1 (ko) * | 2021-04-27 | 2021-11-05 | 아그니코리아 주식회사 | 내화팽창 슬리브 |
KR102517233B1 (ko) * | 2022-02-23 | 2023-04-03 | (주) 상일이엔지 | 내화발포성 슬리브와 이를 포함하는 케이블 트레이 연결을 위한 슬리브 조립체 및 이를 이용한 내화충전구조 시공방법 |
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US11479982B2 (en) * | 2019-10-04 | 2022-10-25 | Forrester Manufacturing Co., Inc. | Isolation pocket form and method for making crack resistant concrete slabs |
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