KR20180000952U - Composite Laminate for construction reinforcement - Google Patents

Abstract

Disclosed is a composite panel for building reinforcement, which has excellent strength and adhesion in repairing or repairing a building, preventing cracking of concrete in new buildings, bridges, tunnels, and the like. The composite reinforced composite panel includes a panel 20 made of aramid fiber yarn as a core; And a recessed portion 30 formed at one side 22 of the panel 20 and formed with a predetermined distance therebetween in a longitudinal direction and the recessed portion 30 has a cross- 20, the area increases from the recessed portion 32 to the recessed portion 34. As shown in FIG.

Description

{Composite Laminate for construction reinforcement}

The present invention relates to a composite panel for building reinforcement, and more particularly, to a structural panel reinforced with excellent strength and adhesive strength in repairing or repairing a building or for preventing or reinforcing a concrete in a new building, a bridge, To a composite panel.

Generally, when a building has a long period of time, cracks or gaps are formed due to aging and the like on the ceiling or walls of the concrete, damaging the building. Moisture or moisture permeates from the outside, There is a problem that an abnormality occurs in safety. Also, when a long period of time has elapsed for a general bridge or a tunnel, cracks or gaps are generated as in the case of the above-mentioned building, and such repair or reinforcement work must be performed.

Therefore, in order to maintain a predetermined strength by attaching to an appropriate site such as a ceiling of a building, a wall surface (outside / inside wall surface), a lower part of a bridge, a tunnel top, etc., using an adhesive, a carbon fiber yarn The inventor of the architectural reinforcement panel has already filed a patent application on November 12, 1997 and has been registered as utility model registration No. 162189.

In order to increase the adhesiveness and adhesive surface, the line registration design is constructed by integrally adhering a thick nylon knitted fabric to one side of a panel formed by impregnating a carbon fiber yarn with a resin liquid and forming a plate shape, By separating the knitted fabric, it is formed into a large number of lattice-shaped irregularities on the adhesive surface of the plate, and the adhesive surface is increased, so that the adhesive force is very good at the time of construction.

However, as described above, the line registration design involves a troublesome work process in which a nylon knitted fabric is integrally thermally fused and then separated again after a predetermined time elapses. Further, since the uneven surface is formed only at the thickness of the knitted fabric, the depth of the uneven surface is weak, and the adhesive strength can not be increased as much as the original purpose.

Therefore, the object of the present invention is to provide a composite panel for building reinforcement excellent in strength and increased in adhesion.

In order to achieve the above object, the present invention provides a panel comprising a core made of aramid fiber yarn; And a recessed portion 30 formed at one side 22 of the panel 20 and formed with a predetermined distance therebetween in a longitudinal direction and the recessed portion 30 has a cross- 20 has an increased area from the concave entrance portion 32 to the concave interior portion 34. [

According to the present invention, the aramid fiber is impregnated with a thermosetting resin to form an aramid panel, which not only has excellent strength, but also increases the adhesion area by increasing the adhesion area of the adhesive.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view (a) of a composite panel for building reinforcement according to an embodiment of the present invention and an enlarged cross-sectional view (b).
2 is a perspective view of a composite panel for building reinforcement according to another embodiment of the present invention;
3 is a cross-sectional view of a building reinforced using a composite panel for building reinforcement according to an embodiment of the present invention.
4 is a cross-sectional view of a building reinforced using a composite panel for building reinforcement according to another embodiment of the present invention;
FIG. 5 is a schematic view for explaining a method of manufacturing a composite panel for building reinforcement according to an embodiment of the present invention; FIG.

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

FIG. 1 is a perspective view (a) and an enlarged sectional view (b) of a substantial part of a composite reinforced composite panel according to an embodiment of the present invention, FIG. 2 is a perspective view of a composite reinforced composite panel according to another embodiment of the present invention, 3 is a cross-sectional view of a building reinforced using a composite panel for building reinforcement according to an embodiment of the present invention. As shown in Figs. 1 to 3, the composite reinforced composite panel 10 of the present invention includes a panel 20 and a concave portion 30.

The panel 20 serves to improve the strength of buildings, bridges, tunnels, etc., and includes aramid fibers and aramid fibers as a core material and a resin part including therein the fibers in the longitudinal direction. Preferably, the resin is an epoxy resin, a vinyl ester resin, or the like, more preferably an epoxy resin is used.

The thermosetting resin may further contain a curing agent, a releasing agent, a filler, a pigment, a flame retardant, a wetting agent and a mixture thereof, if necessary. The amount of fibers contained in the resin can be appropriately selected depending on the thickness of the panel or the characteristics of the structure to be reinforced. When the curing agent is used, the time required for manufacturing the panel 20 can be shortened and the strength of the panel 20 can be improved. When the flame retardant is used, safety can be improved when a fire or the like occurs. When used, the dispersibility in the resin such as pigment and flame retardant can be improved.

The shape of the panel 20 may vary depending on the purpose of the user, but it is preferable that the panel 20 has a rectangular shape because a plurality of panels 20 can be connected to the side or inside thereof. In addition, a plurality of composite panels 10 may be connected or coupled to each other while the structure is reinforced so that the panel 20 may have a simple rectangular shape. (For example, concavo-convex part or the like), so that they can be fitted to each other. In such a case, not only the adhesive but also the bonding force between the reinforcing panels increases, so that the strength can be further improved.

The concave portion 30 serves to improve the adhesive force with the inner wall of a building or the like and a plurality of the concave portions 30 are formed in the longitudinal direction so as to have a predetermined depth inside one surface (adhesive surface) 22 of the panel 20. The length of the concave portion 30 may be appropriately selected in accordance with the user's purpose (for example, in the form of a straight line or a curved line, the length of the panel 20 or the like), it is preferable that the panel 20 is formed from one end to the other end of the panel 20 (see FIGS. 1 and 2) so as to have an improved adhesion. The concave portions 30 may be formed at regular intervals to form the concave portion 30 '. However, the convex portions 30 may be formed on the entire one surface 22 of the panel 20, ) Is preferably formed. Here, the predetermined interval may be appropriately selected according to the purpose and cost of the user.

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등일 수 있다. 상기 요부 입구부(32)와 요철 내부(34)는 걸림부(36)가 형성되어 있어, 건축물 등의 보강시 상기 걸림부(36)로 인하여, 외부에서 힘이 가해지더라도, 요부(30)의 내부(34)가 걸림부(36)에 걸려, 분리하기가 어려우므로, 건축물 등의 내벽과 본 고안의 복합패널(10)을 더욱 강하게 접착시킬 수 있고, 상기와 같은 요부(30)의 형상을 가짐에 따라, 접착면적이 증가하여, 요부(30)의 깊이가 깊지 않아도 접착력을 증가시킬 수 있다. 여기서, 요부 입구부(32)는 상기 패널(20) 일면(22)의 표면에 형성된 요부(30)를 의미하며, 요부 내부(34)는 상기 요부 입구부(32)에서 패널(20)의 내측으로 형성된 요부(30)를 의미한다. 상기 요부(30)의 깊이는 콘크리트의 균열을 방지하거나 보강할 수 있으면 특별히 제한되지는 않는다. 또한, 상기 요부 내부(34)와 걸림부(36)를 연결하는 면(35)의 각도(a)는 요부 내부(34)를 기준으로, 요부(30)의 단면 형상에 따라 적절히 선택될 수 있고, 바람직하게는 10 내지 80 ˚, 30 내지 70 ˚의 각도를 가질 수 있다.The cross-sectional shape of the concave portion 30 may be a shape (for example, symmetrically or asymmetrically increased) such that the concave portion 30 is formed in the concave internal portion 34 in the same area (or width) (For example, a taper shape or the like) gradually increasing in area from the concave entrance portion 32 to the concave internal portion 34 so that the engaging portion 36 can be formed, May be a trapezoidal shape (e.g., without a short line segment of two line segments parallel to each other in a trapezoid), for example,

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And so on. The recessed portion 32 and the recessed and recessed portion 34 are formed with a latching portion 36 so that even when a force is applied from the outside due to the latching portion 36 when a building or the like is reinforced, It is possible to more strongly adhere the inner panel of the building to the composite panel 10 of the present invention because the inner portion 34 is caught by the engaging portion 36 and is difficult to be separated. The adhesion area increases and the adhesive force can be increased even if the depth of the recessed portion 30 is not deep. The concave entrance part 32 refers to the concave part 30 formed on the surface of one side 22 of the panel 20 and the concave inside part 34 refers to the inside part of the concave part 32 from the inside of the panel 20 As shown in FIG. The depth of the recessed portion 30 is not particularly limited as long as it can prevent or reinforce the crack of the concrete. The angle a of the surface 35 connecting the concave internal portion 34 and the engaging portion 36 may be appropriately selected in accordance with the sectional shape of the concave portion 30 with reference to the concave internal portion 34 , Preferably 10 to 80 degrees, and an angle of 30 to 70 degrees.

Further, in order to prevent cracks in buildings, bridges, tunnels and the like and to reinforce them, two or more composite panels can be used, if necessary, in order to further improve the strength, to increase the thickness, or to improve the seismic performance have. In the case of using two or more composite reinforced composite panels, a composite panel that is located between a part to be repaired such as a building, a bridge, a tunnel, and the like and a composite reinforcing composite panel exposed to the outside, The concave portion 30 may be formed on one side or both sides of the concave portion 30 or the concave portion 30 may be formed on only one side like the composite panel exposed to the outside, (30) is preferably formed because the adhesive strength can be further improved.

The size and thickness of the composite panel for building reinforcement according to the present invention can be appropriately selected and used according to the purpose of the user. 4 is a cross-sectional view of a building reinforced using a composite panel for building reinforcement according to another embodiment of the present invention. As shown in FIG. 4, the composite panel 10 for building reinforcement according to the present invention may be further attached with a decorative sheet 60 for decorating the surface of the wall on the other surface where the recess 30 is not formed. , There is an advantage that the appearance becomes beautiful.

5 is a schematic view for explaining a method of manufacturing a composite panel for building reinforcement according to an embodiment of the present invention. 5, in the composite reinforced composite panel according to one embodiment of the present invention, the aramid fiber bundle 104 is pulled from the aramid fiber supply portion 102 by a puller 120 ≪ / RTI > Concretely, the aramid fiber bundle 104 supplied from the aramid fiber supply unit 102 passes through the first and second guide rolls 106 and 108, is filled with a thermosetting resin, and has an elongated bath shape The aramid fiber bundle impregnated into the impregnated bath 110 and impregnated with the resin passes through the second and fourth guide rolls 112 and 114 to provide the heater 118. The shape of the concave portion as described above When the aramid fiber bundle heated by the heater 118 and cured by the heater 118 passes through the molding member 116, the aramid fiber is formed as a core material, A long composite panel is manufactured in the longitudinal direction, and the composite panel is cut to a size suitable for the purpose of the user, thereby manufacturing the composite panel for building reinforcement according to the present invention. Although it has been shown that the molding member 116 can be replaced according to the shape of a desired recess and the heater 118 is installed on the upper and lower portions of the molding member 116, The number and location of the aramid fiber bundle are not particularly limited as long as the bundled aramid fiber bundle can be cured.

A method for reinforcing a building or the like using the composite reinforced composite panel 10 of the present invention is as follows. An adhesive is applied to the surface of a structure to be repaired or reinforced such as a concrete structure, The adhesive layer 40 is formed by integrating the adhesive with the inner wall 50. That is, when the adhesive is cured, the composite panel 10 and the inner wall 50 are integrated to reinforce the damaged portion. Specifically, in order to repair buildings, bridges, tunnels, etc., it is necessary to first arrange the parts requiring repair (for example, to remove the poor concrete surface, clean and flatten the work) And the adhesive layer 40 is formed by applying the adhesive layer 40 to the inner wall 50 coated with the adhesive on one side 22 of the composite panel 10 for building reinforcement according to the present invention, And then pressed together by reciprocating a plurality of times using a separate roller or the like, it is firmly attached after a certain period of time has elapsed. The adhesive may be applied to one side 22 of the inner wall 50 or the composite reinforced composite panel 10 or may be applied to one side 22 of the composite reinforced composite panel 10 .

The panel 20 of the composite reinforced composite panel 10 includes a plurality of aramid fibers and can further improve the strength of the composite panel 10. The concave portion 30 further increases the bonding area, ) Can be further improved. Specifically, when the panel 20 on which the concave portion 30 is formed is used to adhere to the inner wall 50 of the building, an adhesive to be applied to the inner wall 50 of the building, for example, an epoxy A resin or the like is applied to one surface 22 of the composite panel including the recess 30 and the cemented portion of the composite panel 10 and the inner wall 50 can be further improved.

Claims (3)

A panel 20 made of aramid fiber yarn as a core; And
And a recessed portion (30) formed on one surface (22) of the panel (20) in a longitudinal direction with a predetermined gap formed therebetween,
Wherein a cross-sectional shape of the recessed portion (30) increases in area from a recessed portion (32) formed on one surface of the panel (20) toward a recessed portion (34). The composite panel for building reinforcement according to claim 1, wherein the concave portion (30) has the same area as the concave entrance portion (32) and is formed as a concave internal portion (34), thereby increasing its area. The composite panel for building reinforcement according to claim 1, wherein a concave portion (30) is formed on one surface (22) of the panel (20).

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