JPH08312249A - Vault - Google Patents

Abstract

PURPOSE: To provide a vault with high heat insulating performance by providing a wall structure consisting of two synthetic resin foamed body layers formed with a space inbetween and concrete layers formed on the respective surface sides thereof. CONSTITUTION: A wall 1 and a ceiling 2 have the same structure, in which concrete layers B are laminated on the surfaces of two lateral synthetic resin foamed body layers A formed with a space αinbetween. When a field spray foaming type synthetic resin foamed body layer A is formed, an incombustible material such as hard urethane foam is used as the material, the synthetic resin foamed body layer A is formed by spraying after either one of the lateral concrete layers B is formed, and the other concrete layer B is then formed. Otherwise, the lateral concrete layers B are preliminarily formed by use of a form, the form is thereafter removed, and the material is sprayed and injected to the void generated thereby to form the synthetic resin foamed body layer A. Since the synthetic resin foamed body layers and the space are interposed between the concrete layers, excellent airtightness and heat insulating property can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a vault that is equipped with heat insulation, fire resistance and crime prevention, and relates to a vault that can be used as a part (one room) in a building. It is a thing.

[0002]

2. Description of the Related Art Conventionally, as the exterior structure of walls, ceilings, floors and the like of vaults, a thick single-layer structure mainly made of concrete has been generally used.

[0003]

However, in the above vault, the thickness of the exterior (concrete wall, etc.) must be increased in order to improve the heat insulation performance, fire resistance performance, and crime prevention performance. However, there were problems such as increase in workability and poor workability. In addition, concrete walls are particularly inferior in heat insulation performance, and dew condensation often occurs inside and often damages stored items such as valuables.In order to prevent dew condensation, air conditioning equipment, etc. must be installed. There was a problem that it became huge.

[0004]

SUMMARY OF THE INVENTION In order to eliminate such drawbacks, the present invention comprises two layers of synthetic resin foam formed by forming a space in at least a wall of a safe, and a synthetic resin foam layer. Since it was formed by providing a concrete layer on each surface side,
Due to the high heat insulation of the synthetic resin foam layer and the sealed space, it has better heat insulation performance than before even if the wall thickness is thin, and because it is lightweight, it has good workability, reduces cost, and prevents dew condensation. It proposes a useful safe room.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vault according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory view showing a typical example of the vault, and shows a cross-sectional view of exterior parts such as a wall 1, a ceiling 2 and a floor 3.

That is, the wall 1 and the ceiling 2 have the same structure, and as shown in FIG. 2 which is an enlarged view of a portion of FIG. 1, a space α is provided and two left and right synthetic resin foam layers are provided. It has a structure in which a concrete layer B is laminated on the surface of A, respectively.

The synthetic resin foam layer A is made of nurate foam, phenol foam (resole type, novolac type) or the like, which is particularly excellent in fire resistance and heat insulation performance, and is formed by blowing foam at the construction site. And a case where a panel-shaped object formed in advance in a molded body is attached and constructed, it is roughly classified into two.

That is, when the synthetic resin foam layer A is formed by the former in-situ blowing foam type, the material thereof is hard urethane foam, or flame-retardant second-class or third-class (J
IS-A-1321) Phenol + isocyanate + flame-retardant material of acceptable product is used. Of course, a non-CFC synthetic resin is used, and flame retardant is achieved with phenol.

As for the construction sequence for forming the on-site blowing foam type synthetic resin foam layer A, either the left or right concrete layer B is formed and then the synthetic resin foam layer A is formed.
Is formed by spraying, and the other concrete layer B
Or the left and right concrete layers B are formed in advance by using a mold or the like, and then the mold is removed, and the resulting voids are sprayed and injected to obtain the synthetic resin foam layer A. Is formed.

Further, as an example of the latter panel-shaped molded body, for example, as shown in FIG. 3, nurate foam or phenol foam molded into a plate shape is sequentially laminated to form a synthetic resin foam layer A. It is a thing.
At this time, in particular, use of a high-density plate (for example, trade name: Mocbuild, manufactured by Kubota) having a molding density of 200 to 500 Kg / m ³ is preferable in terms of heat insulation, fire resistance, and strength. . Further, in the synthetic resin foam layer A, as various flame-retardant materials, lightweight aggregates (perlite grains, glass beads, gypsum slag, talc stones, shirasu balloons, etc.), fibrous materials (glass wool, rock wool, carbon fiber, Graphite, etc.) can be mixed to improve fire resistance and fire resistance.

Further, FIG. 4 shows a composite plate C in which a front material 4 and a back material 5 sandwich a core material 6 made of a synthetic resin foam.
It is a thing that, by sequentially sticking together,
The synthetic resin foam layer A is formed. Further, in FIG. 4, a wood mouth cover material 7 for covering the wood mouth surface of the composite plate C is formed. By covering the periphery of the core material 6 with an impermeable substance, a gas barrier structure is formed as a whole, and moisture intrusion is performed. It is useful for prevention.

The surface material 4, the back surface material 5, and the mouthpiece cover material 7 are made of thin metal plates having strong corrosion resistance to acid and alkali components, such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel sheets, Roll forming and press forming of enamel steel plate, galvalume steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.), sandwich steel plate (damping steel plate, etc.) , Molded into various shapes by extrusion molding, etc., or molded into various arbitrary shapes by extrusion molding, press molding, autoclave culturing, etc. of inorganic materials, and also aluminum vapor-deposited paper, asbestos paper, kraft paper, asphalt Felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, stone Paper, aluminum hydroxide paper, one such as glass fiber nonwoven fabric, or those of two or more laminated or waterproof treatment, is made of a flame-retardant treated sheet.

Further, the surface material 4 and the back surface material 5 and the core material 6
As a compounding method, the core material 6 is mixed with a synthetic resin stock solution, a curing agent, and a foaming agent, and the mixture is discharged onto the back surface side of the front surface material 4 or the back surface material 5 and heated continuously or by a badge method. When it is formed by reactive foaming, it is integrally compounded by utilizing the self-adhesiveness of the core material 6 itself. Further, when the core material 6 is a molded body, the core material 6 and the front surface material 4, the back surface material 5, and the mouthpiece cover material 7 are bonded together through an adhesive agent (not shown) to integrally combine them. Is.

FIG. 5 shows an example of a composite plate C in which a core material 6 made of various synthetic resin foams is laminated on the front and back surfaces of a fiber-containing cloth 8 and a resin film 4a in this order. The fiber-containing cloth 8 is a cloth-like material in which carbon fibers, glass fibers, inorganic fibers and the like are mixed, and is intended to improve the adhesiveness with the core material 6 and the fire resistance performance due to the anchor effect.
Further, the resin film 4a functions as a protective material for the surface, and by coating the surface of the resin film 4a to form a coating film (not shown), further improvement in weather resistance, durability and surface design Can be improved.

The core material 6 and the fiber-mixed cloth 8 are adhered to each other by utilizing the self-adhesiveness of the core material 6 or by a separate adhesive (not shown). Also, a fiber-mixed cloth 8
The resin film 4a and the resin film 4a are bonded to each other by heat-sealing the resin film 4a itself or by compounding the resin film 4a with a separate adhesive (not shown).

In the figure, the bulk material D is interposed in the space α at an arbitrary pitch. The bulk material D is, for example, a rod-shaped material having an arbitrary cross-sectional shape as shown in FIGS. 6A and 6B, and the material thereof is the same as the synthetic resin foam layer A described above. The function of the bulk material D is to support the two left and right synthetic resin foam layers A so that they are not tilted or deformed. The bulk material D shown in FIG. 6 (a) has a hollow 9 formed at the center.

Further, FIGS. 7 (a) and 7 (b) show the outer periphery of the bulk material D covered with the surface material 4 or the resin film 4a, and the bulk material D is reinforced with strength and improved in waterproofness and moisture resistance. Is intended.

Further, as shown in FIGS. 1 and 2, the concrete layer B is formed by laminating on the surface of two layers of the synthetic resin foam layer A. The function of preventing destruction and sound insulation are added.

For the concrete layer B, a mold is used separately,
It may be formed as a concrete layer B of a type that is cast in the field, or may be formed by sequentially constructing concrete panels (PC boards) that are previously formed in a panel shape. Of course, in order to improve the strength inside the concrete layer B, it is possible to embed reinforcing bars or various aggregates.

Further, as shown by a chain double-dashed line in FIG. 2, the interior material 10 and the exterior material 1 are optionally provided on the surface of the concrete layer B.
1 can also be formed. That is, the interior material 10 and the exterior material 11 are made of a panel, a decorative cloth, a spray paint or the like. In FIG. 2, the synthetic resin foam layer A
When the thickness of the concrete layer B is T2 and the thickness of the concrete layer B is T1, T2 = 30 to 200 mm, T1 = 30 to 150 mm
It is about the thickness.

Further, if the thickness of the bulk material D = space α is T3, T3 = 100 mm or more is formed so that the air layer sealed in the space α has a high heat insulating effect.

As shown in FIG. 8 which is an enlarged view of the portion B in FIG. 1, the structure of the floor 3 of the vault is such that the synthetic resin foam layer A, the concrete layer B and the floor material are formed on the ground 12. It is laminated in the order of 13. In particular, it is preferable that the floor material 13 is made of sprayed urethane elastomer or a composite containing urethane elastomer as a main component from the viewpoint of moisture resistance, abrasion resistance and dust resistance.

In FIG. 8, the thickness of the synthetic resin foam layer A is H3, the thickness of the concrete layer B is H1, and the floor material 13 is
H3 = 30 to 150 mm, H1
= 100 to 300 mm and H2 = 2 to 15 mm.

Further, in FIG. 1, E is a ventilator, which is formed on one or more of the ceiling 2 or the wall 1 as occasion demands so as to exchange the indoor air with the outside air.
As a specific example of the ventilation device E, for example, a heat exchange type ventilation fan or the like is preferable in terms of energy efficiency. In the figure, the arrows indicate the flow of air in and out.

[0025]

As described above, according to the vault according to the present invention, as compared with the conventional exterior structure made of only concrete, the synthetic resin foam layer and the space are interposed in the concrete layer, so that the heat insulation property is improved. , Airtightness and moisture resistance are remarkably improved. When the synthetic resin foam layer is made of highly flame-retardant phenol foam, the fire resistance is not inferior to the conventional one. Compared with the past, even if the wall thickness is reduced, the performance is not inferior, which is advantageous in terms of cost and construction.
There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a representative example of a vault according to the present invention.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is an explanatory diagram showing an example of a synthetic resin foam layer in FIG.

FIG. 4 is an explanatory diagram showing an example of a synthetic resin foam layer in FIG.

5 is an explanatory diagram showing an example of a synthetic resin foam layer in FIG.

FIG. 6 is an explanatory diagram showing an example of a bulk material in FIG.

FIG. 7 is an explanatory diagram showing an example of a bulk material in FIG.

FIG. 8 is an enlarged view of a portion B in FIG.

[Explanation of symbols]

 A synthetic resin foam layer B concrete layer C composite board D bulk material E ventilation device α space 1 wall 2 ceiling 3 floor 4 surface material 4a resin film 5 backside material 6 core material 7 wood cover material 8 fiber mixed cloth 9 hollow 10 interior Material 11 Exterior material 12 Ground 13 Floor material

Claims (1)

[Claims] 1. At least two synthetic resin foam layers each having a wall structure formed by providing a space, and a concrete layer provided on each surface side of the synthetic resin foam layers. Vault.