JPH051855B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to formwork boards that can be used as ceilings, floors, walls, etc. as they are by being fixed or fixed in a predetermined position, and more specifically, The present invention relates to a formwork board having a shaped wire mesh and a manufacturing method thereof.

[Conventional technology]

Conventionally, in constructing ceilings, floors, walls, etc. of buildings, a construction method has been adopted in which a large number of boards or panels are assembled at predetermined positions to form a formwork, and concrete is poured into the formwork.

[Problem to be solved by the invention]

However, in this case, the work of assembling a large number of plates or panels in predetermined positions and the work of removing the concrete after it hardens are extremely troublesome.

In addition, since the ceiling, floor, or wall constructed in this way reveals the bare surface as it is, it must be finished by some means.

By the way, when constructing ceilings, floors, or walls, if a board with at least one side finished can be fixed in place or fixed and used as a ceiling, floor, or wall, the above-mentioned drawbacks could be avoided. can be resolved. That is, by pouring concrete into the formwork, the ceiling,
Instead of building floors or walls, you can use boards that are finished on at least one side and hold them in place with concrete;
If this board could be used as a ceiling, floor, or wall by fixing it in place using special metal fittings, it would not only make the construction work easier, at least compared to traditional construction methods. There is no need to use any means to finish the exposed concrete surface as in the past.

An object of the present invention is to provide a formwork board that is convenient for use in such cases and a method for manufacturing the same.

[Means to solve the problem]

The formwork board A of the present invention has an inorganic foamed grain layer 20 bonded and hardened by an adhesive material on one side of a three-dimensional welded wire mesh 1, and a plate-shaped finishing material 3 on the outside thereof. It is provided.

In addition, the formwork board A of the present invention has a three-dimensional welded wire mesh 1 filled with inorganic foam particles 2 mixed with an adhesive material on one side, and a plate-shaped finishing material 3 bonded to the outside thereof. After that, the adhesive material mixed into the inorganic foamed particles 2 is cured, and the inorganic foamed particle layer 20 is formed.

[Effect]

Since the formwork board A according to the present invention has the three-dimensional welded wire mesh 1, the strength of the entire board increases accordingly. Since this formwork board A has at least one side finished with the finishing material 3,
Using this board, a three-dimensional welded wire mesh 1 is exposed from the side opposite to the side where the finishing material 3 is placed.
By simply fixing the sides with concrete and installing it in place, you can use this board as it is on the ceiling,
It can be a floor, a wall, etc. In addition, by using a metal fitting B as shown in Fig. 4, for example, it can be very easily fixed to the frame of the structure shown as C in Fig. 2 or C' in Fig. 3, and this board can be used as it is on the ceiling or floor. Alternatively, it can be a wall or the like. That is, for example, when the metal fitting B shown in FIG. By simply hooking any one of the wire rods 12 of the welded wire mesh 1 in the formwork board A to the locking portion 1b of the formwork board A, the board A can be fixed to the frame C very easily as shown in FIG. be able to. Furthermore, as shown in FIG. 3, for example, the above-mentioned frame C is fixed on another frame C' made of I-shaped steel, and the formwork board A is fixed on the frame C using the same construction method as in the case of FIG. This allows the board A to be easily fixed to another frame C'.

Further, according to the manufacturing method of the present invention, on one side of the three-dimensional welded wire mesh 1, an inorganic foamed grain layer 20 bonded and hardened by an adhesive material is formed, and a plate-shaped finishing material 3 is further formed on the outside thereof. is easily formed, and the formwork board A as a single unit can be manufactured very easily.

〔Example〕

Embodiments of the present invention will be described based on the accompanying drawings.

As shown in FIG. 1, an inorganic foamed grain layer is bonded and hardened by an adhesive material on one side (lower side in FIG. 1) of a three-dimensional welded wire mesh 1 formed to a predetermined size. 20 is further provided with a plate-shaped finishing material 3 on its outer side (lower surface in FIG. 1), and this is used as one board A for the formwork.

This board A for formwork is made by filling inorganic foam particles 2 mixed with an adhesive material on one side (lower side in Figure 1) of a three-dimensional welded wire mesh 1 that has been preformed to a predetermined size. A plate-shaped finishing material 3 is bonded to the outside (lower surface in FIG. 1), and then the inorganic foam particles 2
harden the adhesive material mixed in the
It can be manufactured by molding the inorganic foamed particle layer 20.

This board A for formwork is finished with finishing material 3 on at least one side, so the three-dimensional welded wire mesh 1 side exposed from the side opposite to the side where finishing material 3 is placed is covered with concrete. By simply fixing and installing it in a predetermined position, it can be used as a ceiling, floor, or wall.

In addition, by using special metal fittings instead of fixing with concrete, this board A for formwork
can be very easily fixed to the framework of a structure, and can be used as a ceiling, floor or wall. As a special metal fitting used in this case, the one shown by B in FIG. 4 can be mentioned. This metal fitting B includes a hook rod 2b having a U-shaped locking portion 1b at the lower end, and a hook rod 2b having a U-shaped locking portion 1b at the lower end.
The locking metal fitting 3b is composed of a locking metal fitting 3b to which the locking pin 3b is fixed, and a fixture 4b to which both are to be fixed, and the locking metal fitting 3b is formed with an engagement groove 5b. In the illustrated example, the fixture 4b is constructed of a screw of the hook rod 2b and a nut screwed onto the screw.

A construction method for fixing the formwork board A to the framework of the structure shown as C in FIG. 2 or C' in FIG. 3 using this metal fitting B will be explained. In the case shown in FIG. 2, by fitting the frame C of the structure into the engagement groove 5b of the metal fitting B, the metal fitting B can be easily fixed to the frame C. Therefore, the hook bar 2b of metal fitting B
When any one of the wire rods 12 of the three-dimensional welded wire mesh 1 partially exposed from one side of the formwork board A is hooked onto the locking part 1b of the frame C as shown in FIG. The formwork board A can be fixed very easily. In addition, in the case shown in Fig. 3, the above-mentioned frame C is fixed in advance to another frame C' made of I-beam steel, for example, and the frame C is attached to the formwork by the same construction method as in the case of Fig. 2. By fixing board A, board A can be easily fixed to frame C'. That is, the frame is inserted into the engagement groove 5b of the metal fitting B.
By fitting the frame C fixed onto C', the metal fitting B can be easily fixed to the frame C'. Therefore, when any one of the wire rods 12 of the three-dimensional welded wire mesh 1 partially exposed from one side of the formwork board A is hooked onto the locking portion 1b of the hook rod 2b of the metal fitting B, As shown in FIG. 3, the board A can be very simply fixed to another frame C'.

In the illustrated example, the frame C is made of an angle material, but it may be made of a channel material.

In this way, there is no need to assemble a large number of concrete panels or remove a large number of concrete panels after the concrete hardens, as is the case with conventional construction methods, and since the finishing material 3 appears as is on the room side, there is no need for any finishing. I don't.

The three-dimensional welded wire mesh 1 may be, for example, a pair of lattice-shaped welded wire meshes 10, 10 arranged above and below, and a large number of zigzag-shaped wavy wires 11 welded to them. When the three-dimensional welded wire mesh 1 has such a structure, it becomes a so-called truss structure, so that not only can the strength characteristics of the three-dimensional wire mesh be fully utilized, but also the weight of one board can be reduced.

Further, if the inorganic foamed beads 2 are made of perlite or a ceramic bead mixture, since this is a non-combustible material, one formwork board A can be used as a heat insulating material suitable as a fire prevention material.

On the other hand, the above adhesive material is a thermosetting foamed synthetic resin,
For example, if a novolak-type phenolic resin is used and the inorganic foamed beads 2 filled in a mold of a desired shape are heated to perform the foaming, curing, adhesion, and molding, the inorganic foamed beads 2 will be uniformly formed. Since it is easy to obtain a molded product in which the particles are dispersed and the voids between the particles are filled, boards for formwork can be manufactured extremely easily. In this case, pre-foaming and cooling of the mold during molding become unnecessary, making it possible to shorten and improve the efficiency of processing. In particular, when a novolak type phenolic resin is used as the adhesive material, there is no risk of rusting or corroding the iron, and therefore there is no adverse effect on the three-dimensional welded wire mesh 1.

In addition, various materials can be used as the finishing material 3, such as ceramic fiber (silica alumina fiber), calcium silicate insulation material (zonolite type and tobermorite type), vermiculite insulation material, pearlite insulation material. If the heat insulating material is made of wood, rock wool, asbestos heat insulation board, or diatomaceous earth containing asbestos, it can have extremely excellent heat resistance.

In addition, if inexpensive gypsum board or the above-mentioned heat insulating material is used as a finishing material, and formwork board A is used as a ceiling material for a high-rise building, as shown in Figure 2, it will be particularly lightweight, so the board Installation can be done quickly. In addition, each board A for formwork,
By applying a special adhesive or waterproofing agent to the joining surface of A, the gap between the two can be sealed.

On the other hand, in order to make the formwork board A a heat insulating material that complies with the non-combustible and fire-retardant materials specified in building-related laws, the adhesive material is a Portland cement-based material or cement milk, and a super foam material is mixed therein. It is best to stir it. In this case, conventional techniques used to produce foamed-in-place concrete, lightweight aerated concrete (ALC), etc. can be applied as is. Note that when Portland cement-based materials or cement milk are used as adhesive materials, the specific gravity tends to be slightly higher than when thermosetting foamed synthetic resin materials are used, but this does not pose any practical problems. .

Note that the size and thickness of the formwork board A and the thickness of the wire of the welded wire mesh 1 can be changed as appropriate.

〔Effect of the invention〕

The formwork board of the present invention has a three-dimensional welded wire mesh 1
This has the effect of increasing the overall strength of the board. Since at least one side of this board A for formwork is finished with the finishing material 3, the three-dimensional welded wire mesh 1 side is exposed from the side opposite to the side where the finishing material 3 is placed. By simply fixing the board with concrete and installing it in a predetermined position, or by fixing the three-dimensional welded wire mesh 1 to the frame members of the structure using extremely simple means, this formwork board can be used as it is for ceilings, floors, etc. Alternatively, since it can be used as a wall or the like, it can be extremely easy to construct at a construction site, and has the effect of making it possible to employ labor-saving construction methods.

In addition, by changing the inorganic foam particles and adhesive materials according to the purpose of the board, we can achieve the desired performance required as a building material, such as fire retardancy, heat insulation, etc.
It can be made to satisfy heat resistance/cold resistance, corrosion resistance, sound absorption/insulation properties, and durability.

Further, according to the method of the present invention, an inorganic foamed grain layer 20 bonded and hardened by an adhesive material is formed on one side of the three-dimensional welded wire mesh 1, and a plate-shaped finishing material 3 is further formed on the outside thereof. The provided formwork board can be manufactured at low cost and efficiently.

[Brief explanation of the drawing]

The attached drawings show an embodiment of a three-dimensional welded wire mesh formwork board according to the present invention, and FIG. 1 is an enlarged cross-sectional view cut in the longitudinal direction, and FIGS. FIG. 4 is a longitudinal sectional side view showing an example of use in the ceiling of an object, and FIG. 4 is a perspective view showing an example of a metal fitting for fixing a formwork board. DESCRIPTION OF SYMBOLS 1... Welded wire mesh, 2... Inorganic foamed grains, 3... Finishing material, 10... Grid-like welded wire mesh, 11... Waveform wire, 20... Inorganic foamed grain layer.

Claims (1)

[Claims] 1. On one side of the three-dimensional welded wire mesh 1, an inorganic foamed grain layer 20 bonded and hardened by an adhesive material is further provided with a plate-shaped finishing material 3 on the outside thereof. A board for formwork containing three-dimensional welded wire mesh. 2. One side of the three-dimensional welded wire mesh 1 is filled with inorganic foam particles 2 mixed with an adhesive material, and a plate-shaped finishing material 3 is bonded to the outside of the inorganic foam particles 2, which are then mixed into the inorganic foam particles 2. A method for manufacturing a three-dimensional welded wire mesh formwork board, which comprises curing an adhesive material and molding an inorganic foamed particle layer 20. 3. Three-dimensional welding according to claim 1, wherein the three-dimensional welded wire mesh 1 is obtained by welding a large number of zigzag-shaped wavy lines 11 to a pair of lattice-like welded wire meshes 10, 10 arranged above and below. Board for formwork with wire mesh. 4. A three-dimensional welded wire mesh formwork board according to claim 1, wherein the inorganic foam particles are pearlite or a ceramic bead mixture. 5. Claim No. 5, wherein the adhesive material is a thermosetting foamed synthetic resin, and the foaming, curing, adhesion, and molding are performed by heating the inorganic foam particles 2 filled in a mold having a desired shape. 2. The method for manufacturing a three-dimensional welded wire mesh formwork board according to item 2. 6. The method for manufacturing a three-dimensional welded wire mesh formwork board according to claim 5, wherein the thermosetting foamed synthetic resin is a novolak type phenolic resin.