WO2013065896A1

WO2013065896A1 - Method for constructing a building by applying polyurethane foam

Info

Publication number: WO2013065896A1
Application number: PCT/KR2011/009070
Authority: WO
Inventors: 호진원
Original assignee: 주식회사 에스피씨
Priority date: 2011-11-02
Filing date: 2011-11-25
Publication date: 2013-05-10

Abstract

The present invention relates to a method for constructing a building by applying polyurethane foam. When constructing the walls and roof of a house or a building, a steel rod anchor which is to be embedded integrally into rigid polyurethane foam is protruded above a floor plate in order to fix the walls to the floor plate. After connecting and installing ironwork which is to become the framework of a building to the steel rod anchor, plaster boards which are to become the internal surfaces of the building are supported on the ironwork to form the inner space of the building, rigid polyurethane is applied to a suitable thickness by being sprayed on the outside of the plaster board, and the rigid polyurethane foam is hardened so that the rigid polyurethane foam itself forms the main portions of the walls and roof of the building. Thus, the walls and roof of a house or building can be quickly constructed.

Description

Building construction method by applying polyurethane foam

The present invention relates to a building construction method by applying polyurethane, and more specifically, when constructing a wall or a roof of a house or a building, the wall is embedded in a rigid polyurethane foam to be fixed to a floor plate, which will be integrated. Extrude the anchor on the floor plate, connect the reinforcing bar anchor, install the hardware to be the frame of the building, and support the gypsum board, which will be the inner surface of the building, to form the interior space of the building. By applying a rigid polyurethane to the appropriate thickness with a spray, the rigid polyurethane foam is cured, the rigid polyurethane foam itself forms the walls and roof body of the building to quickly construct walls and roofs of houses or buildings It relates to a building construction method by applying the foam.

In addition, the present invention, when constructing the walls and roofs of houses or buildings, using a form of air-inflatable material inflates the form of houses or buildings using compressed air, and then sprays the polyurethane thereon It is possible to quickly construct walls and roofs of houses or buildings by removing the shrinkage form outside the polyurethane wall by applying it to the polyurethane, hardening the polyurethane firmly to form a shape, and then extracting air from the expanded form inside the polyurethane. It relates to a building construction method by applying a polyurethane foam.

Polyurethane is generally a synthetic compound of resin, fibrous, elasticity which belongs to the organic polymer series made by reacting diisocyanate (an organic compound containing two —NCO functional groups) with a bifunctional compound such as glycol. The most well known polyurethanes are rigid foams used in light structural materials such as elastic foams for decorative fabrics, mattresses and seam for airplane wings.

The foamed polyurethane is obtained by reacting an organic compound having a carboxyl group with a diisocyanate such as polyester, and carbon dioxide bubbles generated through this reaction are dispersed throughout the product. The use of polyethers or polyesters with hydroxy groups in the production of polyurethanes can produce elastic fibers or rubbers that are very resistant to ozone attack but weak to the action of acids and alkalis.

In modern times, the use of polyurethane is used for various purposes from household goods such as shoes and mattresses to high-tech industries such as automobiles and electronics.

Among them, Rigid Foly-urethane Foam has particularly good thermal insulation performance due to its low thermal conductivity, good compressive strength, good durability, no water absorption, light weight, and fire resistance. It is relatively safe, so it is often used as a building material.

In addition, the polyurethane is easy to implement the shape to be molded by injecting into a mold, there is an advantage that can be made to the desired shape by spray molding by applying to the target surface by spraying method.

On the other hand, in general, the construction of a house is somewhat different depending on the materials of construction and the construction method, but the foundation is made, the frame is built on it, the walls are made, the insulation is insulated, and the electricity and equipment required for the building are constructed. The process of finishing the inside and outside of the house is completed.

Among these processes, the construction of the frame and the building of walls are especially important in architecture. Most of the process uses concrete and cement bricks, which use cement mortar to build bricks to form walls, or formwork from wood or steel and cast concrete to make concrete walls.

After curing and finishing, this process has a problem that a lot of time and air is used. Such a structure has a disadvantage in that the weight of the structure itself is heavy and therefore, the pillar or beam must have a large cross section structurally to support the weight.

And even if the frame, wall or roof is finished, it is then insulated, waterproofed, and internally finished. Once all of this is done, eventually building a house or small building is at least several months of air and millions of pyeong. There is a problem that the cost of the original cost.

In addition, recently, there are wooden houses or steel houses using steel frames in the case of houses, but this also requires a lot of air and construction costs when building wooden or steel frames, making exterior walls and roofs, and finishing with insulation waterproofing.

Therefore, the present invention is a house in consideration of the heat insulating effect, the durability of the compressive strength, the safety against fire and water absorption due to the non-combustible characteristics of the rigid polyurethane foam (Rigid Foly-urethane Foam) presented above Alternatively, the present invention has been completed by creating a method for constructing a small building.

The present invention is to solve the above problems, when constructing a wall or roof of a house or building, to protrude a reinforcing anchor anchored on a rigid polyurethane foam to be integrated into the bottom plate to be fixed to the bottom plate on the bottom plate, After connecting to the reinforcing anchor and installing the hardware to be the frame of the building, support the gypsum board which will be the inner surface of the building to the framed steel to form the interior space of the building, and spray the hard polyurethane outside the gypsum board with the appropriate thickness. Hard polyurethane foam is cured, and the rigid polyurethane foam itself forms the walls of the building and the main body of the building, and the polyurethane foam is applied to the walls and roofs of houses or buildings quickly and to reduce the cost of construction. To provide a construction method through the building.

In addition, the present invention, when constructing the walls and roofs of houses or buildings, using a form of air-inflatable material inflates the form of houses or buildings using compressed air, and then sprays the polyurethane thereon When the polyurethane hardens, the polyurethane foam is applied to expedite the construction of walls and roofs of houses or buildings by removing air from the swelling formwork inside the polyurethane and removing the contracted form out of the polyurethane walls. To provide a construction method through the building.

According to a feature of the present invention for achieving the above object, by designating the location of the housing or building walls, pillars in the construction location for the construction of a house or building and proceeding the basic construction of the wall pillars using reinforcement and pouring concrete A first process of constructing a floor plate on which a wall or a column of a house or a building is attached, and finishing the foundation work through a reinforcement procedure of constructing a roof of the house or a building by reinforcing steel or wire mesh; A second process of laying and fixing gypsum board on the entire surface to provide formwork therein according to the basic construction of the house or building; Install electrical wiring, pipes for water and sewage, windows and doors in the upper part of the formwork according to the purpose and design of the house or building, and use a rigid polyurethane foam to spray on the house or building where the foundation work is installed. A third step of forming a wall and a roof by spraying and foaming the polyurethane foam; When the hard polyurethane foam is cured and the walls and roof of the house or building are completed, the surface of the hard polyurethane foam is trimmed and trimmed. The exterior of the wall is finished with siding and the roof is finished with roof-shaped finish. And, the interior is characterized in that it provides a building construction method through the polyurethane foam coating comprising a fourth process to finish the construction by painting or wallpaper.

At this time, according to an additional feature of the present invention, the wall of the house or building, the bottom plate is attached to the floor and the upper part of the floor or the housing or building walls, a plurality of reinforcing bars and metal or wood Using a truss assembled with a long span that supports a large external load with a triangular or pentagonal linear member, it is firmly connected to the location of the walls and columns supported by the reinforcement to build the foundation of the house or building. It is preferably configured to finish.

In addition, according to an additional feature of the invention, the bottom plate is preferably made of a material of wood or iron plate to provide mobility after completion of the house or building.

Building construction method by applying the polyurethane foam in the embodiment of the present invention, when constructing the wall or roof of the house or building, the foundation, the frame and the plaster board as a finishing material in the interior of the house or building to support the polyurethane on it It is applied by spraying, foaming and curing to quickly construct the walls and roofs of the building, thus reducing the cost of construction.

In addition, the present invention can build a practical house such as a farm house or a weekend cottage at a relatively low price than the general construction method, in particular in the case of housing for underdeveloped countries or housing for refugees in disaster or conflict areas It can provide short-term and significantly reduced construction costs.

In addition, the present invention is to set the amount of polyurethane to be applied according to the type of house or building to ensure that the polyurethane is hardened to have a shape that can be installed in various forms of houses or buildings according to the user's choice and insulation of polyurethane foam It is possible to quickly provide a building with a water and waterproof effect.

In addition, the present invention is to apply a polyurethane spray on the air inflated to the wall and the roof of the desired thickness to form a rigid polyurethane foam, and then remove the form after curing the building having a heat insulation and waterproof effect of the polyurethane foam Can be provided quickly.

1 is a flow chart showing a process of building construction method by applying polyurethane foam according to an embodiment of the present invention.

2 is a view showing a state in which the construction of the foundation concrete deck and reinforcement anchor of the building as an embodiment of the present invention

3 is a view illustrating a state in which the formwork inflated with air after the process of FIG.

4 is a view showing a state in which the entire formwork surface after the process of Figure 3 as a gypsum board construction as an embodiment of the present invention

5 is a view showing a state fixed to the wire mesh to fix the wall or roof of the building after the process of Figure 4 as an embodiment of the present invention

6 is a view showing a state in which windows, doors, etc. of the building after the process of Figure 5 installed in one embodiment of the present invention

7 is a view showing a state in which the internal electrical wiring and piping construction of the building after the process of Figure 6 as an embodiment of the present invention

8a to 8c is a view showing a process of spraying a polyurethane plate after the process of FIG.

9a to 9b is a view showing a state in which the building is completed by removing the internal formwork in accordance with the curing after polyurethane coating

10 is a flowchart showing another process of the building construction method by applying a polyurethane foam according to another embodiment of the present invention.

11 is a flow chart showing a process of building construction method by applying polyurethane foam according to an embodiment of the present invention.

12a to 12b is a view showing a state of foundation work as a concrete floor slab and reinforcement of the building as an embodiment of the present invention

FIG. 13 is a view illustrating a state in which a gypsum board is installed inside a building after the process of FIG. 12 according to one embodiment of the present invention; FIG.

14 is a view illustrating a state in which windows, doors, and the like of a building are installed after the process of FIG. 13 according to one embodiment of the present invention;

15 is a view showing a state in which the internal electrical wiring and piping construction of the building after the process of Figure 14 as an embodiment of the present invention

16a to 16c are views showing a process of spraying a polyurethane board after the process of FIG.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted when it is deemed that they may unnecessarily obscure the subject matter of the present invention.

1 is a flow chart showing a process of building construction method by applying polyurethane foam according to an embodiment of the present invention. The construction method will be described based on FIGS. 2 to 9 according to the flowchart.

In order to construct a house or building in the present invention, as shown in FIG. 2, first, a flat concrete floor to be used should be provided, and the bottom plate 10 is made by pouring concrete of a suitable thickness at a location to be constructed. Position the house or building wall above this and fix the rebar anchor 20 by drawing the rebar at an appropriate height to the centerline of the wall (see step S20).

On the other hand, the bottom plate may be made of a material of wood or steel plate to move the house or building to a specific location after the house or building is completed, and to install the rebar anchor by pulling the rebar to the appropriate height as in step 20 Can be.

It can be used as a material of the wood and iron plate having a specific thickness of the timber flooring to provide the mobility of the fixed house or building structure and the finished structure of the concrete to the location desired by the user.

The reinforcing anchor 20 functions as an anchor for fixing and fixing the house or building constructed in accordance with the present invention so as not to be separated, the reinforcing bar is inserted into the concrete floor plate 10 and the polyurethane wall is not separated from each other It is to avoid.

Thereafter, as shown in FIG. 3, the air formwork 30 having a housing or building shape is placed into the reinforcing anchor 20 (see step S30).

The air formwork 30 is a shape to be applied by spraying a polyurethane foam to make the body of the wall or roof of a house or building, made of a material that can be blown by blowing the material of the formwork 30 building If the mold is made in the shape of the building space to be blown and inflated by blowing air with an air compressor, the mold is inflated to the size of the inner space of the building.

At this time, the inlet opening air into the formwork is located at the door of the building so that it can be easily removed when demolded and removed.

After laying the gypsum board 40 as shown in FIG. 4 on the outer circumferential surface of the house or building air formwork 30 installed as described above, the entire surface of the formwork is constructed, and in consideration of the thickness of the polyurethane to be constructed in the future, as shown in FIG. 5. Reinforce the entire house or building with the mesh (25) (see step S50).

At this time, the wire mesh reinforcement may be installed so as to be centered on the thickness of the polyurethane wall or roof in consideration of the thickness of the polyurethane to be applied on the formwork to reinforce the strength of the wall or roof to be formed of polyurethane.

When the wire mesh 25 is reinforced, the reinforcing bar is inserted together with the reinforcing anchor 20 so that the concrete floor plate 10 and the polyurethane wall and the roof are integrated to support and fix the housing or the building so as not to be separated. .

In addition, for reinforcing the wire mesh 25, steel frame or wire mesh can be selectively used according to the characteristics of the building.

On the other hand, in the accompanying Figure 4 gypsum board 40 is installed on the outer circumferential surface of the housing or building air formwork 30 is attached to one complete plate or a plurality of gypsum board according to the characteristics of the house or building to complete the entire formwork surface Can be.

After the wire mesh reinforcement work, the window 50 or the door 55 is installed in the upper part of the formwork as shown in FIG. 6 at a position determined according to the use or design of the house or building (see step S60). Or, depending on the purpose of the building electrical wiring 60, and the piping 65 for water and sewage work (see step S70).

On the other hand, the window 50 or the door 55 may be selectively carried out after the electrical wiring 60, the piping 65 is made of the process located on the formwork.

After completion of the above series of processes, as shown in FIGS. 8A to 8C, the polyurethane foam is solidified by spraying and foaming the rigid polyurethane 70 foam with a spray onto a house or building on which an air formwork is installed. And form a roof (see step S80).

According to the above, when the rigid polyurethane foam is applied by spraying, the chemical reaction is completed after a predetermined time after the application according to the type and amount of the polyol or catalyst to form the rigid polyurethane foam. You can get the roof quickly.

At this time, the injection of the polyurethane foam can be injected by adjusting the injection amount according to the purpose, characteristics, such as a house or building.

When the hard polyurethane foam applied by the above process is hardened to have strength, the air is removed from the air formwork 30 as shown in FIG. 9A, and the mold is shrunk and then demolded, according to the characteristics of the polyurethane as shown in FIG. 9B. A building with a certain strength and adiabatic waterproofing function required by the building is completed. (See step S90.)

That is, when the air is exhausted to the air formwork, the air compressor is rotated in reverse to draw the wind to the formwork to shrink the formwork, the contracted formwork is removed through the door of the building in which the air inlet is installed. This formwork can be reused in the same way.

When the walls and the roof of the house or building are completed by the above process, trim the surface sprayed with the rigid polyurethane foam, and the outside of the wall is finished with a siding, etc., and the roof is finished with a roof-shaped finish. Finish the construction by painting or wallpaper. (See step S100)

Meanwhile, FIG. 10 is a flowchart illustrating another process of the building construction method by applying polyurethane foam according to another embodiment of the present invention, and the air of a house or building shape into the reinforcing anchor 20 in the process of FIG. 1. Position the formwork 30 (see step S130), apply a release agent on the surface of the air formwork 30 to facilitate demolding (see step S140), and considering the thickness of the polyurethane to be constructed in the future as shown in Figure 5 wire mesh (25) proceed with the reinforcement procedure for the entire house or building (see step S150).

Thereafter, windows, doors and electrical wiring / piping can be provided, by applying a rigid polyurethane foam, and after curing the air formwork finish finishing can provide a building construction method by applying the polyurethane of the air formwork.

That is, the rigid polyurethane foam is applied to the surface of the air formwork 30 without the process of installing the gypsum board 40 of FIG. 1 on the entire surface of the air formwork, and then a release agent is applied to facilitate the detachment. It is possible to selectively provide a building construction through the application.

In addition, FIG. 11 is a flowchart illustrating a process of a building construction method by applying polyurethane foam according to an embodiment of the present invention, and will be described with reference to FIGS. 12 to 16.

First, as shown in FIG. 12, first, a flat concrete floor to be used as a foundation should be provided, and concrete having a suitable thickness is placed at a location to be constructed to make a bottom plate 10 (see step S210). In order to fix the wall and column to the bottom plate 10 by designating the position of the building wall and the column, the reinforcing anchor 20 is led to the bottom plate 10 to proceed with the basic construction of the wall column, and the reinforcing anchor 20 ) To install the framework hardware (25) to join the position of the wall, column to finish the basic construction. (See step S220)

At this time, the wall supported by the framework hardware 25, etc. by using a truss (strus) assembled a structure having a long span to support a large external load of a triangular or pentagonal of several linear members of metal or wood, It can also be firmly joined to the location of the pillars to complete the foundation work for a house or building.

The bottom plate 10 is integrally formed by pouring concrete after fixing and supporting the reinforcing anchor 20 and the frame hardware 25 in the position of the building wall, column.

In addition, the present invention may be a reinforcement procedure by constructing the roof of the house or building with a reinforcing bar or wire mesh as shown in FIG.

The reinforcing bar is inserted through the truss, reinforcing bar or wire mesh through the finishing process of the basic construction, and the concrete floor plate 10 and the polyurethane wall and the roof are integrated to fix and support the house or building not to be separated.

On the other hand, the bottom plate may be installed by configuring the material of the wood or steel plate to move the house or building to a specific location after the house or building is completed.

In accordance with the basic construction of the house or building installed as described above, the gypsum board 40 to provide the formwork function as shown in Figure 13 on the outer circumferential surface inside the house or building is laid on the entire surface (see step S230). The configuration of the interior of the house or building to be formed after the application of the foam is formed.

The gypsum board 40 installed in the interior of the house or building shown in FIG. 13 may be attached to one complete plate or a plurality of gypsum boards according to the characteristics of the house or building to form the entire formwork surface.

Subsequently, after completion of the entire formwork surface through the gypsum board 40, the window 50 or the door 55 is installed to be positioned above the formwork at a position determined according to the use or design of the house or building. (See step S240) As shown in FIG. 15, the electrical wiring 65 and piping 60 for water and sewage work according to the purpose of the house or building. (See step S250)

After completion of the above series of processes, as shown in Figures 16a to 16c attached to the housing or building on which the formwork is sprayed by spraying a rigid polyurethane (70) foam by spraying and foaming the polyurethane foam and the wall and A roof will be formed (see step S260).

According to the above, when the rigid polyurethane foam is applied by spraying, it is cured after a certain period of time after the application according to the type and amount of the polyol or catalyst, etc., which forms the rigid polyurethane foam, and the chemical reaction is completed. It is possible to obtain thick walls and roofs quickly (see step S270).

When the rigid polyurethane foam applied by the above process is hardened to have strength, a building having a certain strength and heat insulation waterproof function required by a house or a building is completed according to the characteristics of the polyurethane as shown in FIG. 16C.

When the walls and the roof of the house or building are completed by the above process, trim the surface sprayed with the rigid polyurethane foam, and the outside of the wall is finished with a siding, etc., and the roof is finished with a roof-shaped finish. Finish the construction by painting or wallpaper. (See step S280)

Building construction method by applying the polyurethane coating of the present invention through the above process can reduce the construction cost while having the proper strength and waterproof insulation function required by the house or building can be built quickly above all.

Claims

After inflating the formwork of the house or building space to be constructed with the material that can be inflated with air to have the shape of the inside space of the house or building using compressed air, spray the hard polyurethane foam on it Form a wall and roof of a certain thickness and harden the polyurethane, and then blow out the air in the formwork to demold the contracted air formwork out of the polyurethane wall so that the house or building can have the strength and waterproof insulation and reduce the construction cost. Building construction method by applying polyurethane foam, characterized in that configured
A first step of constructing a floor plate by placing concrete at a construction location for new construction of a house or a building, specifying a location of a wall of a house or a building at an upper part thereof, and fixing a reinforcement anchor having a predetermined height at a center line of the wall;

A second step of placing the air formwork into the reinforcing anchors after inflating the formwork of the form of the house or building space to be constructed with air that can be inflated with air to have an internal space shape of the house or building using compressed air;

A third process of laying the gypsum board on the outer circumferential surface of the air formwork having the internal space of the house or the building to construct the entire formwork surface, and to perform the reinforcement procedure of the whole house or the building with a wire mesh;

After Waimesh reinforcement work, install electrical wiring, pipes for water and sewage, windows and doors at the top of the formwork according to the purpose and design of the house or building, and install rigid polyurethane foam on the house or building where the formwork is installed. Spraying and foaming with a spray to form a polyurethane foam to harden the polyurethane foam; And

When the applied hard polyurethane foam is hardened to have strength, the air is removed from the air formwork to shrink the formwork, and the contracted form is removed through the door of the building in which the air inlet is installed; Building construction method by applying a polyurethane foam, characterized in that.
A first step of constructing a bottom plate by placing concrete at a construction location for new construction of a house or building, designating a location of a wall of a house or building at an upper part thereof, and fixing a reinforcement anchor having a predetermined height at a center line of the wall;

A second step of placing the air formwork into the reinforcing bar anchor after inflating the formwork of the form of the house or building space to be constructed with air that can be inflated with air to have an internal space shape of the house or building using compressed air;

A third process of applying a release agent that facilitates the mold demoulding upon spraying polyurethane on the entire surface of the air formwork having a shape of a space inside a house or a building;

After Waimesh reinforcement work, install electrical wiring, pipes for water and sewage, windows and doors at the top of the formwork according to the purpose and design of the house or building, and install rigid polyurethane foam on the house or building where the formwork is installed. Spraying and foaming with a spray to form a polyurethane foam to harden the polyurethane foam; And

When the hard polyurethane foam applied is hardened to have strength, the air is drawn out to the air formwork, and the formwork is shrunk so that the formwork is demolded. Building construction method by applying polyurethane foam characterized in that.
The method according to claim 2 or 3,

After the fifth process is completed, when the walls and roof of the house or building are finished, trim the surface sprayed with rigid polyurethane foam, the exterior of the wall is finished with siding, the roof is finished with roof-shaped finish, and the interior is The building construction method by applying a polyurethane foam of the air formwork, characterized in that further comprises a sixth process of the finishing construction by painting or wallpaper.
The method according to claim 2 or 3,

When the wire mesh reinforcement work is secured together with the reinforcing anchor, the reinforcing bar is inserted so that the concrete floor plate, the polyurethane wall and the roof are integrated so as to be fixed and supported so that the house or the building is not separated.

Steel wire or wire mesh is selectively used according to the characteristics of a house or a building to reinforce the wire mesh,

In consideration of the thickness of the polyurethane to be applied on the formwork to be installed in the center of the thickness of the polyurethane wall or roof through the polyurethane foam coating, characterized in that configured to reinforce the strength of the wall or roof to be formed of polyurethane Building construction method.
For the construction of a new house or building, designate the location of the house or building wall and column at the construction site, and proceed with the foundation work of the wall column using reinforcing bars, and cast concrete to construct the floor plate with the wall or column of the house or building. And a first process of finishing the basic construction through reinforcement procedures constituting the roof of the house or building with reinforcing anchors, framework hardware or wire mesh;

A second process of laying and fixing gypsum board on the entire surface to provide formwork therein according to the basic construction of the house or building;

Install electrical wiring, pipes for water and sewage, windows and doors in the upper part of the formwork according to the purpose and design of the house or building, and use a rigid polyurethane foam to spray on the house or building where the foundation work is installed. A third step of forming a wall and a roof by spraying and foaming the polyurethane foam; And

When the hard polyurethane foam applied is hardened to finish the walls and roof of the house or building, trim the sprayed surface of the hard polyurethane foam, finish the siding finish on the outside of the wall, and finish the roof on the roof. The interior is a building construction method by applying a polyurethane foam, characterized in that comprises a; 4th process to finish construction by painting or wallpaper.
The method of claim 6,

The outside of the house or building wall, the base plate is attached to the top of the bottom plate and the reinforcing bars or metal or wood in a position of the house or building wall, pillars and a plurality of straight members of a large or triangular Polyurethane foam characterized in that it is configured to finish the basic construction of a house or building by using a truss to assemble a structure having a long span to support the load firmly connected to the position of the walls, columns supported by the rebar Building construction method by applying.
The method according to any one of claims 2, 3 or 6,

The floor plate is a building construction method by applying a polyurethane foam, characterized in that consisting of a material of wood or iron plate to provide mobility after completion of the house or building.