KR20160027360A

KR20160027360A - Construction method for outside insulating concrete structure

Info

Publication number: KR20160027360A
Application number: KR1020140113706A
Authority: KR
Inventors: 김의현; 이목우
Original assignee: (주)한국록셀보드
Priority date: 2014-08-29
Filing date: 2014-08-29
Publication date: 2016-03-10

Abstract

The present invention relates to a method to mainly construct an outside insulation concrete structure of a medium, and large building structure. The present invention does not require an extra outside insulation construction as an insulation composite sheet is solidly attached to the outside of a concrete structure in a single united body while the concrete structure is constructed by temporarily fixating the insulation composite sheet, formed with a forming resin sheet and inorganic forming sheets attached to an inner and an outer side of the forming resin sheet, onto the inner side of an outside mold form by a temporary means, and also fixating a form-tie on an inside mold form in an inner end part of the temporary fixing means; and is able to obtain excellent insulation effect and also has excellent construction efficiency and economical construction ability by efficiently blocking a thermal bridge phenomenon by the form-tie as the temporary fixing means can simply and easily be removed from the outer side of the outside mold form while the form-tie remains in the concrete structure after curing the concrete by separately forming the temporary fixing means and the form-tie.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of constructing an external thermal insulation concrete structure,

More particularly, the present invention relates to a method of constructing an external heat insulating concrete structure, in which a heat insulating composite plate having inorganic sheet materials having excellent mutual adhesion with concrete is stacked on both sides of an organic sheet material, The heat-insulating composite plate for external heat insulation is solidly attached to the outside of the concrete structure simultaneously with the construction of the concrete structure, and the form-tie of the concrete structure is adhered firmly, It is possible to effectively prevent the thermal bridge phenomenon due to the foam tie by simply and easily removing the foam tie in the heat-insulating composite plate, thereby preventing the occurrence of troublesome and troublesome work Which is superior in construction efficiency and construction economics. It relates to a construction method of the concrete structure.

The passive house, which has been attracting much attention in recent years, is a low-energy-use building that minimizes the use of fossil fuels by minimizing energy waste by using advanced insulation technology to reduce heat loss. It is being referred to.

It is known that the above-mentioned passive house can save energy by 75 to 90% or more as compared with a conventional building.

Generally, the concrete building structure is constructed by installing inner and outer moldings which are fixed and fixed at regular intervals by using foam ties such as seperatel or sefa tie, and by placing concrete in the space between them and curing the walls and slabs As shown in FIG.

Meanwhile, in the above-mentioned method for inserting a concrete building structure, a heat insulation method and an outer insulation method using a heat insulation plate are widely used. The insulation method is advantageous in that the construction is simple and the construction cost is relatively low. However, Although there is a problem that internal condensation phenomenon easily occurs due to the direct exposure to the environment, there is a problem that internal condensation phenomenon easily occurs. On the other hand, the external heat insulation method has an advantage of excellent energy saving effect due to excellent heat insulation and no internal condensation. However, It is difficult to attach the plate material, so that the construction is difficult and the construction cost is increased.

In recent years, there has been an increasing trend of application of an external insulation method in which a heat insulating plate is disposed outside a concrete structure so that energy efficiency can be improved by using the concrete structure itself as a heat accumulator, .

The registered patent publication No. 10-1202061 (Registered on November 11, 2012) and Registered Patent Publication No. 10-1224293 (Registered on January 13, 2013) each include an insulating gantry for concrete curing with a heat insulating plate adhered to an iron plate, However, these conventional techniques are not related to the method of constructing the outer wall, but in order to solve the problem of concrete curing in the winter season, a method of using a heat insulating plate attached to the gangue and peeling the heat insulating plate after completion of curing It is not directly related to the present invention.

The registered patent publication No. 10-1211383 (registered on Dec. 28, 2012) by the present applicant discloses a foamed resin plate material, an inorganic foamed plate material laminated on the surface of the above-mentioned foamed resin plate material, A heat insulating composite sheet having a thickness of 3 to 50 mm and an aspect ratio of 1: 1 to 20 of an inorganic foaming sheet material and a foamed resin sheet material is disclosed. In the present invention, The above-mentioned composite heat insulating plate, or at least one or more of the aforementioned inorganic foam plates is applied.

Figure 6a shows the case of using the gum foam as the outer and inner moldings 20 and 30 and Figure 6b shows the case of using the gum foam as the outer mold 20 and the typical foam tie 1 ", 1 "), the spacing between the outer and inner molds 20 and 30 is fixed and fixed, It has a structure capable of firmly supporting the mold to prevent the mold from spreading or lifting due to the side pressure of the concrete in the process of pouring and curing the concrete in the space, and has a structure that can be disassembled after completion of the construction.

Generally, a gang form is a large formwork for application to a large building such as a high-rise apartment. Generally, a plurality of septic bolt fasteners (not shown) are formed in advance to form a foam tie 1 ' Respectively.

The Euro form is a standardized form that is most widely applied in a general construction site, in which a plywood plate or a resin plate is attached to a metal frame, and a form tie 1 "is formed using a gap between the unit and a euro form unit (not shown) .

6a, a Sepa-bolt is screwed between the outer mold 20 and the inner mold 30 and screwed to the connuts 11 at both ends thereof, and at the same time, A fastening bolt 15 is screwed on the outside of the inner mold 30 and a vertical stiffener 40 is located on the outside of the outer mold 20 and the inner mold 30, The concrete bolts 15 are tightened tightly with the nuts 13 and the concrete is poured and the curing is completed and then the wing nuts 13 are loosened to separate the tightening bolts 15 from the connuts 11 to form the outer and inner molds 20 The cone nut 11 is removed from the seperate bolt 10 embedded in the concrete and then the portion of the tightening bolt 15 exposed to the outside is cut and the cone nut 11 is taken out from the groove The concrete wall or the slab is completed by filling the waterproof closure material.

In the case of Fig. 6B, the fixing structure of the outer mold 20 as a gum is completely the same as that of Fig. 6A, but the fixing to the inner mold 30 as a gum Is fixed by inserting a wedge pin (12) into a flat portion (10b) formed with a slit (not shown) formed at an end thereof after the separator (10a) The process of disassembling is substantially the same as that described above, so that a detailed description thereof will be omitted.

However, in such a conventional construction method, it is never easy to apply an external heat insulation method in which a heat insulation material is directly installed on a mold and concurrent attachment is made by pouring concrete and curing. This is because a heat insulation material, There is a problem in that the deformation of the heat insulating material due to the strong clamping pressure is large during the fastening of the formwork, so that it is difficult to firmly support the formwork. In addition, there is a problem in that the cevaporated bolts 10 or It is impossible or very difficult to remove the septic tie 10a or the flat tie (not shown), so that there is a serious problem that the heat insulating effect is considerably deteriorated by the heat bridging phenomenon through it.

Therefore, as a conventional method for solving the problem of the conventional construction method as described above, the applicant of the present invention has proposed a method of using a foam-form spacer 1 having a specific shape having a wide base plate portion and a long body portion, However, the above-mentioned outer insulation construction method mainly relates to an outer insulation construction method in which a heat insulation composite plate 70 is directly used as an outer structure. In this method, the outer shape of the body portion of the foam- There is a problem in that it is difficult to exactly match the length to the thickness of the concrete wall 60 which changes in a wide range according to the field and also the inner mold 30 directly contacts the head of the foam- And the hollow body portion made of synthetic resin is compressively deformed by the load of the poured concrete, The drawing operation after the concrete curing of the tie tie 10 is still unsatisfactory. Furthermore, since the inside and the outside of the draw-out hole formed after withdrawing the septa bolt or the cedar tie 10 after the concrete curing, This is troublesome and troublesome, and it is suitable for application to a small-scale building such as a single-family house, but it is not efficient for application to a large-scale building.

In the drawing, reference numerals 40 are vertical grooves, 13 is a wing nut, and 50 is a horizontal pipe.

Patent Registration No. 10-1202061 (Registered on November 11, 2012) Patent Registration No. 10-1224293 (registered on January 14, 2013) Patent Registration No. 10-1211383 (registered on December 28, 2012)

Accordingly, it is a first object of the present invention to provide a method for constructing an outer heat insulating concrete structure having excellent efficiency and economical efficiency, because the outer heat insulating material is firmly attached to the outer side of the concrete structure at the same time as the concrete curing, .

A second object of the present invention is to provide a method of constructing an external heat insulating concrete structure by using a gantry as an external formwork, and then transferring the concrete structure to the upper layer sequentially and reusing it as an external formwork.

A third object of the present invention is to provide an external heat insulating concrete structure which can effectively prevent a thermal bridge phenomenon due to foam ties without requiring troublesome and troublesome work for removing a foam tie in a concrete wall, And to provide a method of constructing the same.

A fourth object of the present invention is to provide a method of constructing an external heat insulating concrete structure having a high degree of application flexibility to variations in the thickness of concrete structures according to the field conditions.

A fifth object of the present invention is to provide a method of constructing an external heat insulating concrete structure that can efficiently construct an effective passive building by external heat.

According to a preferred embodiment of the present invention, there is provided a method of manufacturing an aluminum foam board, comprising the steps of: (A) temporarily fixing the inorganic foam board to the inner side of the outer mold by temporary fixing means; (B) fixing a foam tie to one end of the temporary fixing means exposed to the inside of the inorganic foam board; (C) placing reinforcing bars inside the above-mentioned inorganic foamed sheet material, fixing the inner formwork and fixing the foamed tie to the inner formwork; (D) placing and curing concrete between the outer mold and the inner mold; And (E) after the curing of the concrete, leaving the foam ties as they are, and removing the temporary fixing means from the outside of the outer molds.

Further, following the above step (E), (F) a step of filling the above-mentioned temporary fixing means with an occluding material as a heat insulating foam filler is further performed.

In addition, following the above step (E), (F1), the above-mentioned outer molds are gum-shaped, and the above-mentioned gums are transferred to the upper layer so that the above-mentioned steps (A) to (E) may be repeatedly applied.

In addition, following the step (F), (G) the step of attaching the finishing material to the outer surface of the inorganic foamed sheet material may be further performed.

The fixing means includes a fixing bolt passing through the outer formwork and the inorganic foam board, a bracket and a wing nut fitted to one end of the fixing bolt and positioned outside the outer formwork, And may be formed of a connut which is inserted and positioned inside the inorganic foam board.

The above-mentioned foam tie may be a Sepa-bolt, and one end of the bolt may be inserted into the above-mentioned connot, and the other end of the bolt may be inserted into the inner form via a separate conn.

The above-mentioned foam tie may be a seperate tie, one end of the bolt may be inserted into the above-described connot, and the other end of the slit forming flat may be fitted into the inner die.

On the other hand, the above-mentioned inorganic foam board may be composed of at least one layer of calcium carbonate-based inorganic foam board.

The above inorganic foaming sheet material is composed of a foamed resin plate material, an inorganic foamed sheet material laminated on the surface of the above-mentioned foamed resin sheet material, and an adhesive layer between the above-mentioned foamed resin sheet material and the inorganic foamed sheet material, The thickness of the inorganic foam plate material is in the range of 3 to 50 mm, the thickness ratio of the inorganic foam plate material to the foamed resin plate material is 1: 1 to 20, and the inorganic foam plate material may be composed of a heat insulating composite plate made of calcium carbonate- .

According to the method of constructing the external heat insulating concrete structure according to the present invention, since the inorganic foam insulating material is solidly attached to the outer side of the concrete structure at the same time as the concrete curing, a separate external heat insulating construction is unnecessary, It is possible to remarkably improve the efficiency of construction by using the gantry as the outer formwork and transferring it to the upper layer successively after constructing the concrete structure and thereby reusing it as the outer formwork. Therefore, it is possible to easily and easily remove the temporary fixing means in the inorganic foamed outer heat insulating material without the need for troublesome and troublesome work for removing the foam ties in the concrete wall. Therefore, Thermal bridge: therm al bridge phenomenon is effectively prevented and excellent insulation effect can be obtained and it is possible to efficiently construct a passive building because the application degree of the concrete structure is high irrespective of the fluctuation range of the concrete structure according to the field situation.

1 is a partial cross-sectional view of a construction of an external heat insulating concrete structure according to a construction method according to the present invention.
Fig. 2 is a partial cross-sectional view of the finish of the form disassembly of Fig. 1; Fig.
FIG. 3 is a view showing the formwork construction according to the construction method of the present invention.
4 is an enlarged view of part A of Fig.
5 is a construction diagram illustrating a temporary fixing process of the inorganic foam board according to the construction method of the present invention.
FIGS. 6A and 6B are diagrams showing a conventional formwork construction.
7 is a partial cross-sectional view showing the state of external heat insulation construction using a conventional foam pad spacer by the present applicant.

The term 'concrete structure' as used throughout this specification refers to a structure made up of concrete, such as a wall, a ceiling or a floor slab, or a boundary that divides the inside and outside of a building, And there is no particular limitation on the kind, but general ones are concrete wall and concrete slab for external heat insulation.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a partial cross-sectional view of a construction of an external heat-insulating concrete structure 1 according to a construction method of an external heat-insulating concrete structure 1 according to the present invention, and FIG. 2 is a cross-sectional view of the external and interior molds 6, A method of constructing a finishing material 9 according to the present invention is a method of constructing a heat insulating composite sheet material 2c in which a foamed resin sheet material 2c as an external heat insulating inorganic foam sheet material and inorganic foam sheet materials 2a, 2 is temporarily fixed to the inner surface of the outer mold 6 such as a gum by the fixing means 4 and then the one end portion of the temporary fixing means 4 exposed to the inside of the above- And the reinforcing bars 8 are arranged in the inner side of the heat insulating composite plate 2 and then the inner molds 7 such as the euro foam are set up and the foam tie 5 After fixing to the inner mold 7, the concrete 3 is placed between the outer mold 6 and the inner mold 7 And then the mold tie 5 is left as it is and only the temporary fixing means 4 is removed from the outside of the outer mold 9.

Here, as the above-mentioned external heat insulating inorganic foam plate material, it is possible to use a single piece of the inorganic foam plates 2a without the above-mentioned foamed resin plate member 2c, or a plurality of the above described inorganic foam plates 2a or 2b Is as described above.

The temporary fixing means 4 includes a fixing bolt 4a passing through the heat insulating composite plate 2 through an opening (not shown) previously formed in the outer mold 6, A bracket 4b and a wing nut 4c which are fitted to one end of the outer die 6 and are positioned outside the outer die 6 and a bracket 4b which is fitted to the other end of the fixing bolt 4a and which is located inside the heat insulating composite plate 2 And a nut 4d.

A metal nut hole (not shown) is formed inside the cone nut 4d and a cone made of synthetic resin is coupled to the outside.

The foam tie 5 may be a Sepa-bolt or a Sepa-tie. When the foam tie 5 is a semi-tie as shown in the figure, The slit forming flat portion 5c of the other end is inserted into the inner mold 7 such as a flow path and the wedge pin 5f is inserted into the slit, The one foam tie 5 is firmly fixed.

On the other hand, although not shown, when the foam tie 5 is a seperate bolt, one end of the bolt portion 5a is fitted to the cone nut 4d, and the other end of the bolt portion (not shown) (Not shown) in the inner mold 7, which is also within the scope of the present invention.

According to the method of the present invention for installing an external heat insulating concrete structure as described above, the temporary fixing means 4 used for temporarily fixing the heat insulating composite sheet 2 as the external heat insulating material inside the external formwork 6, The foam tie 5 positioned between the inner surface of the heat insulating composite plate 2 and the inner mold 7 forming the curing space portion is located on the same axial line so that the outer and inner molds 6 and 7 are firmly fixed The temporary fixing means 4 and the foam tie 5 are separated from each other and the foam tie 5 in the cured concrete 3 is left as it is and only the temporary fixing means 4 is fixed to the outer die 6 ), It is possible to effectively prevent the phenomenon of thermal bridge phenomenon and consequent dew condensation.

Here, the heat insulating composite sheet material 2 as the external heat insulating inorganic foam sheet material is composed of a foamed resin sheet material 2c having a relatively large thickness, for example, about 5 to 60 cm and having a sufficient heat insulating effect, The inorganic foaming plates 2a and 2b laminated on both surfaces of the inorganic foaming plates 2a and 2b and the adhesive layer between the foaming resin plate 2c and the inorganic foaming plates 2a and 2b, The thickness of each of the inorganic foam plate materials 2a and 2b and the foamed resin plate material 2c is in the range of 1 to 20 and the thickness of the inorganic foam plate materials 2a and 2b is 3 to 50 mm, . In the present invention, the application of the above-mentioned foamed resin plate material 2c as the above-mentioned external heat insulating inorganic foamed sheet material is arbitrary and not limited as mentioned above.

The inorganic foam plates 2a and 2b and the heat insulating composite plate 2 are excellent in mechanical properties such as heat insulation, moisture resistance, moisture resistance, compressive strength, bending strength and tensile strength, light weight, , Concrete, stone, or tile. In addition, it is easy to cut in the field, to process the surface irregularities, to process the curved surface to match the inside and outside walls treated with the curved surface design, Or an inner wall or an outer wall finishing work such as a wallpaper plaster attachment, a mortar application, a tile attachment through a mortar, a marble adhesive application using a mortar or an epoxy adhesive, or the like, without using an anchor bolt, And it has excellent workability. Specific details concerning this can be found in the above-mentioned applicant Please refer to the Patent Publication No. 10-1211383 (Patent Document 3).

As a result, the inner surface of the inner inorganic foam sheet material 2b of the heat insulating composite sheet material 2 as the external heat insulating material is adhered very firmly to the outer surface of the concrete structure 3, and the inner surface of the heat insulating composite sheet material 2 as the external heat insulating material A finishing material 9 such as a tile or a slab can be directly adhered to the outer surface of the outer inorganic foam sheet material 2a in contact with the outside atmosphere by using a building adhesive or finishing mortar 9a, The inorganic foaming sheet material 2a is also an inorganic material, so it is very firmly and stably bonded.

The method for constructing the external heat insulating concrete structure according to the present invention can easily fix the heat insulating composite sheet material 2 to the outer formwork 6 by using the temporary fixing means 4 as described above, After curing, the wing nut 4c is loosened and the fixing bolt 4a is pulled out from the connut 4d to pull out the fixing means 4 from the heat insulating composite plate 2 And the space portion formed by the drawing of the temporary fixing means 4 is filled with an occlusion material 9b as a foaming heat insulating filler such as foamed polyurethane or silicone, and then the above- (9).

3 is an enlarged view of part A of FIG. 3, and FIG. 5 is a cross-sectional view illustrating a temporary fixing process of the heat-insulating composite plate 2 according to the construction method of the present invention. And will be described later for convenience of explanation.

3 and 4 show gang forms as the outer formwork 6 in the same size as the heat-insulated composite material 2, but this is for convenience of illustration only, and as shown in FIG. 5, And a plurality of heat-insulating composite plate members 2 are stuck to the inner side thereof in a standard size and / or a predetermined size, and are temporarily fixed as shown in Fig.

In the illustrated example, the outer mold 6 is formed as a gantry having a relatively large dimension as described above (see FIG. 5), and the above-mentioned heat-insulating composite plate 2 is placed on the inner surface of the gantry And one end of the foam tie 5 is fixed to one end on the same axial line of the temporary fixing means 3. After the reinforcement 8 is laid, And the other end thereof is fixed to a flow path foam as the inner formwork 7. As shown in Fig.

Therefore, after the curing of the concrete structure, the gangue as the large outer mold 6 can be moved to the upper layer directly by using a lifting means such as a crane, and can be repeatedly used as the outer mold 6, Since it is concurrent with the curing of the concrete structure, there is no need to construct a separate outer insulation, which contributes significantly to the shortening of the air, the efficiency of construction, and the labor saving.

While the present invention has been described in detail, the present invention is not limited thereto, and various changes and modifications may be made by those skilled in the art.

1: Exterior heat-insulating concrete structure according to the construction method of the present invention
2: Insulating composite sheet
2a: outer inorganic foam board 2b: inner inorganic foam board
2c: Organic foam board
3: Concrete structure
4: temporary fixing means
4a: Fixing bolt 4b: Bracket
4c: wing nut 4d: cone nut
5: form-tie
5a: bolt portion 5c: flat portion
5d: Slit 5e: Cone nut
5f: Wedge pin
6: outer formwork (gang form) 7: inner formwork (euro form or al foam)
8: Rebar 9: Finishing material
9a: Adhesive or mortar for finishing 9b: Clogged material

Claims

A method for constructing an external heat insulating concrete structure comprising the steps of:
(A) temporarily fixing the inorganic foam board to the inner side of the outer mold by temporary fixing means;
(B) fixing a foam tie to one end of the temporary fixing means exposed to the inside of the inorganic foam board;
(C) placing reinforcing bars inside the above-mentioned inorganic foamed sheet material, fixing the inner formwork and fixing the above-mentioned foamed ties to the above-mentioned inner formwork;
(D) placing and curing concrete between the outer mold and the inner mold; And
(E) after concrete curing, leaving said foam ties intact and removing said temporary fixing means from the outside of the outer mold.

The method as claimed in claim 1, further comprising the step of (F) filling the clogged material as the heat insulating foam filler material in the step of removing the temporary fixing means, following the step (E).

The method according to claim 1, wherein, following the step (E), (F1) the outer mold is gum-shaped and the gum is transferred to the upper layer to repeat the steps (A) to (E) Construction Method of Adiabatic Concrete Structure.

The method according to claim 2, further comprising the step of (G) attaching a finish material to the outer surface of the inorganic foam board material following the step (F).

[2] The apparatus according to claim 1, wherein the temporary fixing means comprises: a fixing bolt passing through the outer mold and the inorganic foam board; a bracket and a wing nut fitted to one end of the fixing bolt and positioned outside the outer mold; And a connut fitted to the other end of the bolt and positioned inside the inorganic foam board.

6. The structure of claim 5, wherein the foam tie is a Sepa-bolt, one end of the bolt is fitted in the cone nut, and the other end of the bolt is fitted in the inner mold through a separate connut, .

The method as claimed in claim 5, wherein the foam tie is a seperate tie, wherein one end of the bolt is fitted to the cone nut and the other end of the slit forming flat is fitted to the inner die.

The method according to claim 1, wherein the inorganic foam board is at least one layer of calcium carbonate-based inorganic foam board.

The method according to claim 1,
An inorganic foaming sheet material laminated on the surface of the foamed resin sheet material; and an adhesive layer between the foaming resin sheet material and the inorganic foaming sheet, wherein the thickness of the inorganic foaming sheet is 3 to 50 mm, The thickness ratio of the inorganic foam plate material: foamed resin plate material is 1: 1 to 20,
The above-mentioned inorganic foam board is a heat insulating composite board made of a calcium carbonate-based inorganic foam board
Construction method of external adiabatic concrete structure.