KR101411473B1 - Joint for construction of anti-crack for installation of airfield lighting fixture and installation method of airfield lighting fixture using the same - Google Patents

Abstract

The present invention relates to an anti-crack joint for the installation of aviation lighting fixtures, capable of preventing cracks on or damage to a filler due to the contraction and expansion of concrete blocks after a cutting groove formed on the concrete surfaces to install aviation lighting fixtures is charged with the filler, and a method for installing aviation lighting fixtures using the same. The anti-crack joint formed of an expandable and contractible soft material is inserted into the cutting groove of a construction joint between the concrete blocks while the filler is positioned between the concrete blocks and the anti-crack joint. Thus, the anti-crack joint can serve as a buffer material for a filler in the cutting groove since it is expanded in the contraction of the concrete blocks and is contracted in the expansion of the concrete blocks; thereby preventing the cracks on or the damage to the filler.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an anti-cracking joint for use in an airplane lighting fixture, and an airplane lighting fixture using the same.

The present invention relates to a crack-preventing joint for aviation equalization construction, and more particularly, to a method of constructing a crack-preventing joint for aviation equalization construction by filling a sealing material in a cutting groove of a concrete surface for aviation equalization installation, The present invention relates to a crack preventing joint for use in an airplane lighting fixture and a method of constructing an airplane lighting fixture using the same.

Generally, the airport includes a runway for aircraft takeoff and landing, an induction road that is a driving route for entering the runway after entering or leaving the runway for takeoff, and a mooring for entry and exit of passengers.

The mooring area and the guide path are concrete packages as a rigid packaging section. Since the runway acts on the ground at a very large load (300 to 600 tons) at the time of the shutdown of the airplane landing, the flexible packing section for buffering the load is asphalt pavement .

Since the rigid packing section has a wide packing area, it is packed in several concrete blocks, and is usually packaged in a concrete block unit of 6m x 6m.

As shown in FIG. 1, a joint space 12 is formed as a spacing space of about 1 cm or so in a boundary between concrete blocks 10 each having a size of 6 m x 6 m, and the joint space 12 is formed in each joint space 12 A room temperature type or heating type sealing material 14 such as silicone, epoxy, polysulfide type, polyurethane, asphalt type quasi-raw material or the like is filled.

The reason why the joint space 12 is placed between the concrete blocks 10 and the sealant 14 is filled therein is to allow the shrinkage and expansion of the concrete due to temperature and humidity changes, And warping and curling stress, and to separate the concrete laid out at different times in the vertical direction.

As shown in FIG. 2, which is a cross-sectional view taken along line AA of FIG. 1, each concrete block has a joint space between the concrete blocks so that each concrete block 10 can maintain its position. And a groove 18 is formed in the side surface of the other concrete block 10 so that the reinforcing bars 16 are inserted into the grooves 18. Therefore, even if each of the concrete blocks 10 contracts and expands, The structure is maintained in position.

On the other hand, in the case of the runway, the asphalt pavement is provided as the flexible pavement section. Also, in the case of the asphalt pavement, a widthwise pavement space is formed at intervals of about 30 to 40 m along the runway length direction. .

Each concrete block is packed and arranged on the surface of an induction furnace and a mooring station, and an airway lamp is divided into green or blue in the route from the induction furnace or the mooring to the induction furnace.

In the case of a runway, an aerial lamp with a red color is installed along the longitudinal center line of the runway.

Hereinafter, a conventional aerial lighting method will be described with reference to FIGS. 1 and 3. FIG.

As shown in FIG. 1, in a state where each concrete block is packed and arranged on the surface of the induction furnace and the mooring station, the air lighting unit 30 is installed at predetermined intervals along the direction in which the aircraft travels.

To do this, two lines of a certain width and depth are cut in each concrete block 10 along the center line of the direction of travel of the aircraft in the aircraft guide path (see FIG.

Subsequently, the cut portion is dug to form a cutting groove 20, which is a hollow cross-sectional space of a rectangular shape (see Fig. 3 (b)).

Next, a wire conduit 22 such as a zinc conduit for providing power to aerial lighting is buried in the bottom of the cutting groove 20, and then the inside of the cutting groove 20 is filled with ultra fast mortar, epoxy mortar, And filled with a filler 24 such as a mortar (see Fig. 3 (c)).

1, a circular mounting hole 26 having a larger diameter than the width of the cutting groove 20 is installed in order to embed the aerial lighting 30 at regular intervals along the longitudinal direction of the cutting groove 20, An airplane 30 is embedded in the mounting hole 26 so as to be electrically conductive with the wire conduit 22 to emit light for guiding the airplane along the air duct.

However, the above-mentioned conventional air lighting construction method has the following problems.

First, since the filling material filled in the cutting grooves passes through the joint space, which is the boundary between the concrete blocks, for shrinking and expanding the concrete blocks, there is a problem that the filler passing through the joint space cracks or breaks .

That is, as shown in FIGS. 4 and 5, which are enlarged views of part B in FIG. 1, the joint space 24 between the concrete blocks 10 is filled with the filling material 24 filled in the cutting groove 20 There is a problem that when the shrinkage and expansion between the concrete blocks 10 are performed between the joint spaces 12, cracks are generated or broken in the filler material 24 passing through the joint spaces 12 .

In addition, when cracks are generated in the filler material, water is permeated into the zinc conduit in the cutting groove, thereby causing corrosion or disconnection, and the foreign matter of the filler material contaminates the airfoil.

Second, since the filling material and the concrete block to be filled in the cutting groove for air-lighting installation are made of different materials, as shown in the construction photograph of FIG. 5, both edges of the filler material 24 are gradually lifted from the concrete block 10 There is a problem that the cross section is broken by an external force.

Likewise, when both sides of the filler along the longitudinal direction are lifted or torn, moisture may penetrate into the cable conduit through the gap, causing corrosion or disconnection, and the foreign matter of the filler material Contamination and the like.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a crack preventive joint using a soft material capable of expanding and contracting to form a joint between the concrete blocks, The cracks in the concrete block can be prevented from cracking or breaking due to expansion of the concrete block when the concrete block shrinks while expanding when the concrete block is contracted to serve as a buffer material for the filler in the cutting groove, And a method of constructing an aerial lighting system using the same.

Another object of the present invention is to provide a runway with a flexible packing section which uses a lock hard as a filling material in a cutting groove, but a lock hard is used for a curing material in a cutting groove, The joint part of the part is provided with a crack preventive joint so as to prevent a phenomenon in which both sides of the rim are exposed or the cross section is broken.

According to an aspect of the present invention, there is provided a method of forming a cutting groove, the method comprising: forming a rectangular block using a flexible material capable of expanding and contracting, forming a cutting groove having a predetermined length for a plurality of concrete blocks, There is provided a crack-preventing joint for an air-conditioning lighting installation in which a filler is interposed in a cutting groove at a joint space position between concrete blocks.

Preferably, in the interior of the anti-crack joint, a plurality of hollow portions for expanding and contracting are formed to penetrate along the longitudinal direction.

The crack preventing joint is formed to have a thickness of 0.3 to 5.0 cm, which corresponds to the width of the joint space between the concrete blocks, and a height from the upper end of the conduit pipe disposed at the bottom of the cutting groove to the uppermost end of the cutting groove .

In addition, the anti-crack joint may be formed to have a predetermined length and cut to fit the width of the cutting groove.

Preferably, the both surfaces of the anti-crack joint are formed with irregularities for enhancing the bonding force with the filling material filled in the cutting groove.

The anti-crack joint may be made of an EPDM rubber, a nitrile butadiene rubber, an SBR rubber, an EPM rubber, an EP rubber, an acryl rubber, a urethane rubber, a silicone rubber , And fluorine rubber.

According to an aspect of the present invention, there is provided a method of constructing an aircraft, comprising: cutting a surface of each concrete block to a predetermined width and depth along a center line of an aircraft traveling direction; Forming a cutting groove, which is an empty cross-sectional space of the rectangle, by dicing the cut portion; Burying a wire conduit on the bottom surface of the cutting groove to provide power to the aerial lighting; The method comprising the steps of: providing a crack preventive joint made of a rectangular block using a material capable of shrinking when the concrete block is expanded and expandable when the concrete block is shrunk; Inserting the anti-crack joint into a cutting groove at a joint space between the concrete blocks; Filling the filler material in the cutting groove, filling the filler material with a crack preventive joint therebetween, and curing the filler material; The present invention provides a method of constructing an aerial lighting using a crack-preventing joint for aerial lighting.

According to another aspect of the present invention, there is provided a method of constructing a filling material, the method comprising: a groove forming step of cutting both sides of a top surface of the filling material and a portion of an adjacent concrete block; Injecting and filling a watertight sealant into the groove; And further comprising:

In addition, the filler material is used in the soft region of the runway for hardening which cures well, and the hardener and the soft portion are filled and cured by the anti-crack joint.

Through the above-mentioned means for solving the problems, the present invention provides the following effects.

First, when forming a certain length of cutting grooves for air lighting equalization along a plurality of concrete blocks, a crack preventive joint using a soft material capable of expanding and contracting is formed to cut a joint space position between concrete blocks The crack preventive joint shrinks when the concrete block is expanded and the concrete block is expanded when the concrete block is shrunk to buffer the filling material so that cracks or breakage of the filling material filling the cutting groove Can be prevented.

Secondly, both edges of the filling material filled in the cutting groove and a part of the adjacent concrete block are cut to a certain depth, and then a watertight sealant is injected into the interior of the cutting groove to fill the both edges of the filling material. And it is possible to prevent moisture from penetrating toward the wire conduit in the cutting groove.

Third, it is possible to prevent cracking or breakage by using the filler material in the ducted area of the runway for curing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing concrete blocks constituting the surface of an aircraft induction passage and a mooring field,
2 is a sectional view taken along the line AA in Fig. 1,
3 is a schematic cross-sectional view showing a conventional air-conditioning lighting construction process,
4 is an enlarged view of a portion B in Fig. 1,
FIG. 5 is a view showing a construction photograph showing a problem occurring in a conventional air-
6 is a perspective view of a crack-preventing joint for aviation equalization construction according to the present invention,
FIG. 7 is a cross-sectional view illustrating a method of aerial lighting using a crack-preventing joint for air-
8 is a sectional view taken along the line CC in Fig. 7,
FIG. 9 is a cross-sectional view showing a sealant applied to both sides of a filler after aerial lighting using the anti-crack joint for air-
10 is a perspective view showing another embodiment of a crack-preventing joint for aviation equalization construction according to the present invention.

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

The present invention relates to a method of forming a cutting groove having a predetermined length for aerial lighting in accordance with a plurality of concrete blocks constituting a surface of an aircraft induction furnace and a mooring field, And to prevent cracks or breakage from occurring in the filler material passing through the joint space of each concrete block due to expansion.

To this end, a crack preventive joint is provided which is molded into a rectangular block using a soft material capable of expanding and contracting.

FIG. 6 is a perspective view illustrating a crack-preventing joint for aviation equalization construction according to the present invention.

The anti-crack joint 40 is made of a soft material capable of expanding and contracting, that is, an EPDM rubber (Ethylene Prophlene Diene M-class rubber), an NBR rubber (Nitrile Butadien Rubber), a SBR rubber (Styrene Butadiene Rubber) And is formed into a rectangular block using one material selected from rubber, acrylic rubber, urethane rubber, silicone rubber, and fluorine rubber.

Preferably, the anti-crack joint 40 is made of a soft material capable of expanding and contracting as described above. Therefore, after being contracted by an external force, the anti-crack joint 40 is expanded to its original position by its own elastic restoring force, And a hollow portion 42 for further ensuring a shrinking action.

More specifically, the anti-crack joint 40 is formed into a predetermined length having a long rectangular cross section in the vertical direction, and a plurality of hollow portions 42 for expansion and contraction are formed in the longitudinal direction .

Therefore, the volume of the hollow portion 42 is reduced when the external force acts on the anti-crack joint 40, so that the shrinking action can be smoothly performed. Further, in the state where the volume of the hollow portion 42 is reduced The elastic restoring force becomes larger.

As shown in FIGS. 7 and 8, the anti-crack joint 40 is provided with a cutting groove 20 having a predetermined length and depth for constructing the air conditioning 30 along the plurality of concrete blocks 10 , The filler (24) is interposed between the concrete blocks (10) in the cutting groove at the location of the joint space (12).

Therefore, when the concrete blocks 10 are expanded or contracted due to environmental factors such as temperature and humidity, or factors caused by external forces, the crack preventing joints (not shown) inserted into the cutting grooves 20 at the joint space 12 (40) is also contracted by the pressure at the time of expansion of the concrete, and it expands to its original position when the concrete is shrunk.

The crack preventing joint 40 is inserted into the cutting groove 20 at the position of the joint space 12 between the concrete blocks 10 with the filler 24 interposed therebetween, 10 of the filler material 24 is expanded and contracted while the concrete block 10 is expanded so as to buffer the filling material 24 at the positions before and after the anti-crack joint so that the filling material 24 It is possible to prevent a crack or breakage phenomenon.

10, unevenness 47 may be formed on both surfaces of the anti-crack joint 40 to improve the bonding force with the filler material 24 filled in the cutting groove 20, And the anti-crack joint 40 can be held firmly in place due to the improved bonding strength with the filler 24. [

Hereinafter, the aerial lighting construction process using the above-described anti-crack joint will be described.

First, in a state where each concrete block 10 is packed and arranged on the surface of an induction furnace and a mooring, two lines of a certain width and depth are cut in each concrete block 10 along the center line of the direction of travel of the aircraft.

Subsequently, the cut portion is dug to form a cutting groove 20, which is a hollow cross-sectional space of a rectangular shape. Then, a wire conduit 22, such as a zinc conduit, is buried in the bottom of the cutting groove 20 to provide power for air- do.

Next, the above-mentioned crack preventing joint 40 is inserted into the cutting groove 20 at the location of the joint space 12 between the concrete blocks 10, and inserted and disposed on the wire conduit 22.

The crack preventing joint 40 may be cut and used in accordance with the width and depth of the cutting groove 20. The crack preventing joint 40 preferably includes a joint space 12 between the concrete blocks 10, Cut or manufactured to a height of 0.3 to 5.0 cm in the width corresponding to the width of the cutting groove 20 and at a height from the upper end of the wire conduit 22 disposed at the bottom of the cutting groove 20 to the best end of the cutting groove 20 do.

Finally, the inside of the cutting groove 20 embedded in the anti-crack joint 40 and the wire conduit 22 is filled with a filling material 24 such as ultra low speed mortar, epoxy mortar, ceramic mortar or the like to be cured.

Of course, a circular mounting hole 26 having a larger diameter than the width of the cutting groove 20 is first formed in order to embed the aerial lighting 30 at regular intervals along the longitudinal direction of the cutting groove 20 An airplane 30 is embedded in the mounting hole 26 so as to be electrically connected to the cable conduit 22 to emit light for guiding the airplane along the aircraft induction path.

In order to solve the problems such that both edge portions of the filler material 24 are gradually lifted from the concrete block 10 or torn by external force and the like, Further, watertight construction is performed on the rim portion.

For this, as shown in FIG. 9, the step of forming grooves 44 for cutting and cutting out portions of both sides of the upper surface of the filler 24 and a portion of the concrete block 10 adjacent to the filler 24, Next, a step of injecting and filling the watertight sealant 46 into the groove 44 proceeds.

A groove 44 is formed in the cutting groove 20 by cutting both edges of the filler material 24 filled in the cut groove 20 and a portion of the adjacent concrete block 10 to a predetermined depth. It is possible to prevent a phenomenon in which both edges of the filling material are lifted or torn and the moisture penetration into the wire conduit in the cutting groove can be easily prevented.

Meanwhile, 0.4 to 1.2 parts by weight of polymerized trimethyl dihydroquinoline (RD) is added to the rubber composition of the anti-crack joint 40 to increase oxidation resistance.

It is preferable that the rubber composition contains 0.4 to 1.2 parts by weight of RD (Polymerized trimethyl dihydroquinoline). When the addition amount of RD is less than the above range, it is difficult to obtain the oxidation resistance required in the rubber packing, This is because there are problems that affect the density and firmness of the tissue.

Therefore, the rubber composition preferably contains 0.4 to 1.2 parts by weight of RD (Polymerized trimethyl dihydroquinoline).

In the present invention, since 0.4 to 1.2 parts by weight of RD (Polymerized trimethyl dihydroquinoline) is added to the composition of the anti-crack joint 40 to prevent oxidation and oxidation, the life of the anti-crack joint 40 So that the maintenance cost is greatly reduced.

10: Concrete block
12: Joint space
14: sealing material
16: Rebar
18: Home
20: Cutting groove
22: Wire conduit
24: filler
26: Mounting hole
30: Aviation lighting
40: Crack prevention joint
42: hollow part
44; Groove
46: Watertight Sealant
47: Unevenness

Claims (8)

When a cutting groove 20 having a predetermined length is formed along a plurality of concrete blocks 10 for the purpose of aerial lighting, a plurality of concrete blocks 10 (10) are formed by using a flexible material capable of expanding and contracting, And a crack preventing joint (40) for air lighting equalization inserted in the cutting groove (20) at a position of the joint space (12) between the filler material (24)
Wherein the crack preventing joint (40) is formed to have a predetermined length and is cut and used in accordance with the width of the cutting groove (20).
The method according to claim 1,
Wherein a plurality of hollow portions (42) for expanding and contracting are formed in the interior of the anti-crack joint (40) through the longitudinal direction.
The method according to claim 1,
The crack preventing joint 40 has a thickness of 0.3 to 5.0 cm which is coincident with the width of the joint space 12 between the concrete blocks 10 and is formed at the upper end of the wire conduit 22 disposed at the bottom of the cutting groove 20. [ And the height of the cutting groove (20) to the best end of the cutting groove (20).
delete The method according to claim 1,
Wherein cracks (47) are formed on both surfaces of the anti-crack joint (40) to improve the bonding force with the filler (24) filled in the cutting groove (20).
The method according to any one of claims 1 to 3,
The anti-crack joint 40 may be made of an EPDM rubber, a nitrile butadiene rubber, an SBR rubber, an EPM rubber, an EP rubber, an acrylic rubber, a urethane rubber, a silicone rubber, Rubber, and fluorine rubber. The airbag according to claim 1,
Cutting the surface of each concrete block 10 to a predetermined width and depth along the center line of the aircraft traveling direction;
Cutting the cut portion to form a cutting groove (20) which is an empty cross-sectional space of a rectangle;
Burying a wire conduit (22) on the bottom surface of the cutting groove (20) to provide power to the aerial lighting;
Comprising a crack preventive joint (40) which is shrinkable when the concrete block (10) is inflated and made of a rectangular block by using an inflatable material when the concrete block (10) is contracted;
Inserting the anti-crack joint (40) into the cutting groove (20) at the location of the joint space (12) between the concrete blocks (10);
Filling the filler material (24) in the cutting groove (20) and filling and curing the filler material (40) through the joint;
Wherein the air-tightness of the air-tightening joint is improved.
The method of claim 7,
Forming grooves 44 for cutting and rubbing both edges of the upper surface of the filler material 24 and a portion of the adjacent concrete block 10;
Injecting and filling a watertight sealant (46) in the groove (44);
Further comprising the steps of: (a) providing a plurality of crack-preventing joints for air-lighting lighting,

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