JPH08302980A - Underfloor zone formation material - Google Patents

Abstract

PURPOSE: To provide an underfloor zone formation material which is excellent in insulating, fireproofing, dust proofing and elastic properties by laminating one or more inorganic fiber molded mats of specific density and covering the whole surface of the mats with a metal foil. CONSTITUTION: One or more inorganic fiber molded mats, such as rock wool mats 1 of a density ranging from 5 to 150kg/m<3> are laminated. The whole surface of the mat is covered with a metal foil, such as aluminum glass cloth 3, thereby providing an underfloor zone formation material 6. This inorganic fiber mat consists of the inorganic fiber, such as the rock wool fiber 2 orientated in parallel to the flat surface of the mat. This underfloor formation material 6 is laid out between a slab and a floor panel constituting a double floor structure so that the orientation of the fibers may be parallel to the floor surface. This constitution makes it possible to prevent the generation of duct attributable to the underfloor zone formation material substantially.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor zone forming material for partitioning an underfloor space of a double floor used in an office or the like.

[0002]

2. Description of the Related Art Air conditioning equipment for offices such as building construction is changing from a ceiling blowing method to a floor blowing method. In contrast to the ceiling blow-out method, which sends warmed and cooled air through an air duct installed behind the ceiling and blows it out into the room, the floor blow-out method uses an air chamber between the concrete slab and the double floor panel to heat and cool the room. The generated air is blown into the room through the opening of the floor panel. In this case, partitioning the underfloor to correspond to where the heated and cooled air is needed and where the air is not needed reduces energy loss, and a so-called zone forming material is required. In order to prevent the spread of fire below the floor in the case of a fire in such a double floor, a rock wool mat or a glass wool mat is spread over the relevant part, or a rock wool mat or the like is laminated to improve the workability, and the glass is The cloth was wrapped around and used as a zone forming material for partitioning. When the rock wool mat or the glass wool mat is subjected to processing such as cutting, part of the rock wool or the glass wool becomes dust and remains as it is on the mat. For this reason, when using the double-floor as a chamber, in these zone-forming materials, some of the rock wool or glass wool that has become dust or dust from the zone-forming material due to the blown air enters the room through the openings in the floor panel. It was scattered and made residents feel uncomfortable. Further, when a zone forming material lacking elasticity is used, when the wiring cable is arranged on the floor slab, the triangular joints generated between the floor slab, the zone forming material, and the wiring cable become large, and air leaks occur. There were also problems such as getting bigger. On the other hand, some organic foam-based zone forming materials have excellent dustproofness and elasticity, but all have a problem in fireproofness.

[0003]

DISCLOSURE OF THE INVENTION The present invention is a zone excellent in dustproofness and elasticity capable of solving the above-mentioned problems without impairing the heat insulating property and fireproof property of the inorganic fiber mat which has been used conventionally. An object is to provide a forming material.

[0004]

The above-mentioned object is to form an underfloor zone in which one or more inorganic fiber mats having a density of 5 to 150 kg / m ^{3 according} to the present invention are laminated and the entire surface of the mat is covered with a metal foil. Solved by wood. The inorganic fiber mat in the present invention is sprayed with a binder at the time of fiberizing glass wool and rock wool by a known method,
It is obtained by forming fibers in a substantially layered form, drying and curing while pressing so as to have a desired thickness and density. Even one inorganic fiber mat thus obtained is subjected to processing such as cutting to a predetermined standard and used for the underfloor zone forming material of the present invention. It is used as a mat for the underfloor zone forming material of the present invention. When the wiring cable is arranged on the floor slab, the zone forming material needs elasticity in order to prevent the formation of triangular joints between the floor slab, the zone forming material and the wiring cable. This elasticity is greatly affected by the density of the inorganic fiber mat and the orientation of the fibers. In the zone forming material of the present invention, the density of the inorganic fiber mat is 5 to 150 kg /
Sufficient elasticity in the vertical direction can be obtained by setting m ³ to be the fiber orientation parallel to the floor surface. If the density of the inorganic fiber mat is less than 5 kg / m ³ , the mat strength and shape retention are poor and it is unsuitable as a zone forming material.
If it is larger than / m ³ , the mat becomes hard and the flexibility is remarkably inferior, and the triangular joints are generated to increase the air leakage, and it may help the fire to run in case of fire. The more preferable density of the inorganic fiber mat is 10 to 100 kg / m ³ .

The metal foil in the present invention is an aluminum foil, a copper foil or the like having a thickness of 1 to 50 μm. Generally, aluminum foil is the most suitable because it has good workability and is inexpensive. Those obtained by laminating a glass cloth, a resin film or a non-woven fabric on these metal foils have strength and are easy to process and can be used by being included in the metal foil of the present invention.

As a method for coating the entire surface of the inorganic fiber mat with a metal foil in the present invention, there is a method in which a chloroprene adhesive is applied to the mat without gaps to prevent dust and dust from scattering from the inorganic fiber mat.

The invention according to claim 3 of the present application is a method of constructing an underfloor zone forming material according to claim 2 of the present application. An underfloor zone forming material having a thickness of 1.2 to 1.5 times the distance between the concrete slab and the floor panel, which is the air chamber for the air blowout of the double floor structure, is made to have the orientation of the inorganic fibers parallel to the floor surface. It is laid so that

[0008]

In the underfloor zone forming material of the present invention, one or more inorganic fiber mats are laminated, and the entire surface thereof is covered with the metal foil 2.
Since it is completely covered with, it does not scatter dust or dust from inorganic fibers or the like into the air. In addition, since the density is 5 to 150 kg / m ³ and the inorganic fibers are laminated so as to be parallel to the floor surface, it has excellent elasticity in the vertical direction, so when it is laid between the floor slab and the panel, it forms an underfloor zone. The surface of the material is in tight contact with the bottom surface of the panel, and the back surface is in tight contact with the floor slab. In addition, even if electric wires and cables are arranged on the floor slab, air leakage is extremely small because there is almost no triangle joint between the floor slab, the underfloor zone forming material and the wiring cable due to the excellent elasticity of the inorganic fiber mat. .

[0009]

【Example】

[First Embodiment] An explanation will be given with reference to the drawings. A density of 40 kg / m ³ in which rock wool fibers 2 are oriented parallel to the mat plane,
A rock wool mat having a thickness of 50 mm and a binder spray amount of 3% by weight is cut into a width of 100 mm and a length of 1000 mm, and the two are arranged so that the rock wool fibers 2 are oriented parallel to the mat plane as shown in FIG. Pasted together The entire surface of this laminated rock wool mat 1 is made of aluminum glass cloth (Sanyo Barrier Almat HS50) 3
Enclosed by covering with a density of 40 kg / m ³ and a thickness of 100
An underfloor zone forming material of the present invention having a size of 100 mm, a width of 100 mm and a length of 1000 mm was obtained.

[Comparative Example 1] A rock wool mat having a density of 160 kg / m ³ , a thickness of 25 mm, and a binder spray amount of 3% by weight was cut into a width of 100 mm and a length of 1000 mm, and four pieces of the rock wool fiber were formed into a mat plane. Were laminated so as to be oriented in parallel with. The entire surface of the bonded rock wool mat was covered with a glass cloth so as to obtain a comparative underfloor zone forming material having a density of 160 kg / m ³ , a thickness of 100 mm, a width of 100 mm and a length of 1000 mm.

[Comparative Example 2] Density 40 kg / m ³ , thickness 5
A rock wool mat having a width of 0 mm and a binder spray amount of 3% by weight was cut into a width of 100 mm and a length of 1000 mm, and the two pieces were bonded so that the rock wool fibers were oriented parallel to the mat plane. The entire surface of this bonded rock wool mat is covered with a glass cloth so that the density is 4
0 kg / m ³ , thickness 100 mm, width 100 mm, length 1
A 000 mm comparative underfloor zone forming material was obtained.

[Test] The following tests were conducted on the underfloor zone forming materials obtained in Example 1 and Comparative Examples 1 and 2, and the results are shown in Table 1. Dustproofness: The underfloor zone forming materials obtained in Example 1 and Comparative Examples 1 and 2 are placed on black papers each having a size of about 1.5 m × 1.5 m, and lightly tapped 10 times, and then the underfloor zone. Remove the forming material and observe the number of dust (including dust) on the black paper. Elasticity (flexibility): As shown in FIG. 2, a pipe 5 having a diameter of 30 mm is placed on a horizontal concrete slab 4, an underfloor zone forming material 6 is placed on the pipe 5 so as to be orthogonal thereto, and a leg length of 70 mm and 4 support are provided. Laying the concrete floor panel 7 and observing a gap (gap A) between the concrete floor panel 7 and the underfloor zone forming material 6 and a triangular joint (gap B) between the pipe, the underfloor zone forming material and the concrete slab. . Fire resistance: Base material test according to JIS A 1321.

[0013]

[Table 1]

[0014]

As shown in the results of Table 1, since the underfloor zone forming material of the present invention is excellent in dustproofness, elasticity, and fireproofing, a floor having a double floor structure partitioned by the underfloor zone forming material of the present invention In blowout air conditioning, almost no dust is generated by the underfloor zone forming material, and because it is rich in elasticity, the air leaking from the partition is extremely small and it is possible to distribute air to places where air conditioning is needed without waste, and the underfloor zone forming material itself Since it has high heat insulation, it has an extremely high energy saving effect. Also, since it has excellent fire resistance, it is sufficiently effective in preventing the spread of fire under the floor.

[Brief description of drawings]

FIG. 1 is a sectional view of an underfloor zone forming material.

FIG. 2 is an explanatory diagram of an elasticity test of the underfloor zone forming material.

[Explanation of symbols]

 1 Rockwool mat 2 Rockwool fiber 3 Aluminum glass cloth 4 Concrete slab 5 Pipe 6 Underfloor zone forming material 7 Concrete floor panel 8 Triangular joint

Claims (3)

[Claims] 1. An underfloor zone forming material, characterized in that one or more inorganic fiber mats having a density of 5 to 150 kg / m ³ are laminated, and the entire surface thereof is covered with a metal foil. 2. The underfloor zone forming material according to claim 1, wherein the inorganic fibers are oriented parallel to the plane of the inorganic fiber mat. 3. An underfloor zone forming material according to claim 2, wherein the underfloor zone forming material is laid between a slab having a double floor structure and a floor panel so that the orientation of fibers is parallel to the floor surface. Forming method.